rebase on top of registry

.gitignore

@@ -13,3 +13,4 @@ xcuserdata/
 Package.resolved
 *.pte
 *.ipynb_checkpoints*
+.idea

CONTRIBUTING.md

@@ -1,4 +1,4 @@
-# Contributing to Llama-Models
+# Contributing to Llama-Stack
 We want to make contributing to this project as easy and transparent as
 possible.
 
@@ -32,7 +32,7 @@ outlined on that page and do not file a public issue.
 * ...
 
 ## Tips
-* If you are developing with a llama-models repository checked out and need your distribution to reflect changes from there, set `LLAMA_MODELS_DIR` to that dir when running any of the `llama` CLI commands.
+* If you are developing with a llama-stack repository checked out and need your distribution to reflect changes from there, set `LLAMA_STACK_DIR` to that dir when running any of the `llama` CLI commands.
 
 ## License
 By contributing to Llama, you agree that your contributions will be licensed

README.md

@@ -81,11 +81,24 @@ cd llama-stack
 $CONDA_PREFIX/bin/pip install -e .
 ```
 
-## The Llama CLI
+## Documentations
 
-The `llama` CLI makes it easy to work with the Llama Stack set of tools, including installing and running Distributions, downloading models, studying model prompt formats, etc. Please see the [CLI reference](docs/cli_reference.md) for details. Please see the [Getting Started](docs/getting_started.md) guide for running a Llama Stack server.
+The `llama` CLI makes it easy to work with the Llama Stack set of tools. Please find the following docs for details.
+
+* [CLI reference](docs/cli_reference.md)
+    * Guide using `llama` CLI to work with Llama models (download, study prompts), and building/starting a Llama Stack distribution.
+* [Getting Started](docs/getting_started.md)
+    * Guide to build and run a Llama Stack server.
+* [Contributing](CONTRIBUTING.md)
 
 
 ## Llama Stack Client SDK
 
+|  **Language** |  **Client SDK** | **Package** |
+| :----: | :----: | :----: |
+| Python |  [llama-stack-client-python](https://github.com/meta-llama/llama-stack-client-python) | [![PyPI version](https://img.shields.io/pypi/v/llama_stack_client.svg)](https://pypi.org/project/llama_stack_client/)
+| Swift  | [llama-stack-client-swift](https://github.com/meta-llama/llama-stack-client-swift) |
+| Node   | [llama-stack-client-node](https://github.com/meta-llama/llama-stack-client-node) | [![NPM version](https://img.shields.io/npm/v/llama-stack-client.svg)](https://npmjs.org/package/llama-stack-client)
+| Kotlin | [llama-stack-client-kotlin](https://github.com/meta-llama/llama-stack-client-kotlin) |
+
 Check out our client SDKs for connecting to Llama Stack server in your preferred language, you can choose from [python](https://github.com/meta-llama/llama-stack-client-python), [node](https://github.com/meta-llama/llama-stack-client-node), [swift](https://github.com/meta-llama/llama-stack-client-swift), and [kotlin](https://github.com/meta-llama/llama-stack-client-kotlin) programming languages to quickly build your applications.

SECURITY.md

@@ -0,0 +1,5 @@
+# Security Policy
+
+## Reporting a Vulnerability
+
+Please report vulnerabilities to our bug bounty program at https://bugbounty.meta.com/

docs/cli_reference.md

@@ -1,6 +1,6 @@
 # Llama CLI Reference
 
-The `llama` CLI tool helps you setup and use the Llama toolchain & agentic systems. It should be available on your path after installing the `llama-stack` package.
+The `llama` CLI tool helps you setup and use the Llama Stack & agentic systems. It should be available on your path after installing the `llama-stack` package.
 
 ### Subcommands
 1. `download`: `llama` cli tools supports downloading the model from Meta or Hugging Face.
@@ -117,9 +117,9 @@ llama download --source meta --model-id Llama-Guard-3-1B --meta-url META_URL
 Essentially, the same commands above work, just replace `--source meta` with `--source huggingface`.
 
 ```bash
-llama download --source huggingface --model-id  Meta-Llama3.1-8B-Instruct --hf-token <HF_TOKEN>
+llama download --source huggingface --model-id  Llama3.1-8B-Instruct --hf-token <HF_TOKEN>
 
-llama download --source huggingface --model-id Meta-Llama3.1-70B-Instruct --hf-token <HF_TOKEN>
+llama download --source huggingface --model-id Llama3.1-70B-Instruct --hf-token <HF_TOKEN>
 
 llama download --source huggingface --model-id Llama-Guard-3-1B --ignore-patterns *original*
 llama download --source huggingface --model-id Prompt-Guard-86M --ignore-patterns *original*
@@ -215,9 +215,8 @@ You can even run `llama model prompt-format` see all of the templates and their
 ```
 llama model prompt-format -m Llama3.2-3B-Instruct
 ```
-<p align="center">
+![alt text](resources/prompt-format.png)
-<img width="719" alt="image" src="https://github.com/user-attachments/assets/c5332026-8c0b-4edc-b438-ec60cd7ca554">
+
-</p>
 
 
 You will be shown a Markdown formatted description of the model interface and how prompts / messages are formatted for various scenarios.
@@ -230,7 +229,7 @@ You will be shown a Markdown formatted description of the model interface and ho
 - Please see our [Getting Started](getting_started.md) guide for more details on how to build and start a Llama Stack distribution.
 
 ### Step 3.1 Build
-In the following steps, imagine we'll be working with a `Meta-Llama3.1-8B-Instruct` model. We will name our build `8b-instruct` to help us remember the config. We will start build our distribution (in the form of a Conda environment, or Docker image). In this step, we will specify:
+In the following steps, imagine we'll be working with a `Llama3.1-8B-Instruct` model. We will name our build `8b-instruct` to help us remember the config. We will start build our distribution (in the form of a Conda environment, or Docker image). In this step, we will specify:
 - `name`: the name for our distribution (e.g. `8b-instruct`)
 - `image_type`: our build image type (`conda | docker`)
 - `distribution_spec`: our distribution specs for specifying API providers
@@ -365,7 +364,7 @@ llama stack configure [ <name> | <docker-image-name> | <path/to/name.build.yaml>
 $ llama stack configure ~/.llama/distributions/conda/8b-instruct-build.yaml
 
 Configuring API: inference (meta-reference)
-Enter value for model (existing: Meta-Llama3.1-8B-Instruct) (required):
+Enter value for model (existing: Llama3.1-8B-Instruct) (required):
 Enter value for quantization (optional):
 Enter value for torch_seed (optional):
 Enter value for max_seq_len (existing: 4096) (required):
@@ -397,7 +396,7 @@ YAML configuration has been written to ~/.llama/builds/conda/8b-instruct-run.yam
 After this step is successful, you should be able to find a run configuration spec in `~/.llama/builds/conda/8b-instruct-run.yaml` with the following contents. You may edit this file to change the settings.
 
 As you can see, we did basic configuration above and configured:
-- inference to run on model `Meta-Llama3.1-8B-Instruct` (obtained from `llama model list`)
+- inference to run on model `Llama3.1-8B-Instruct` (obtained from `llama model list`)
 - Llama Guard safety shield with model `Llama-Guard-3-1B`
 - Prompt Guard safety shield with model `Prompt-Guard-86M`
 

docs/getting_started.md

@@ -1,7 +1,7 @@
 # llama-stack
 
 [![PyPI - Downloads](https://img.shields.io/pypi/dm/llama-stack)](https://pypi.org/project/llama-stack/)
-[![Discord](https://img.shields.io/discord/1257833999603335178)](https://discord.gg/TZAAYNVtrU)
+[![Discord](https://img.shields.io/discord/1257833999603335178)](https://discord.gg/llama-stack)
 
 This repository contains the specifications and implementations of the APIs which are part of the Llama Stack.
 
@@ -66,8 +66,17 @@ This guides allows you to quickly get started with building and running a Llama
 You may also checkout this [notebook](https://github.com/meta-llama/llama-stack/blob/main/docs/getting_started.ipynb) for trying out out demo scripts.
 
 ## Quick Cheatsheet
-- Quick 3 line command to build and start a LlamaStack server using our Meta Reference implementation for all API endpoints with `conda` as build type.
 
+#### Via docker
+```
+docker run -it -p 5000:5000 -v ~/.llama:/root/.llama --gpus=all llamastack-local-gpu
+```
+
+> [!NOTE]
+> `~/.llama` should be the path containing downloaded weights of Llama models. 
+
+
+#### Via conda
 **`llama stack build`**
 - You'll be prompted to enter build information interactively.
 ```

docs/resources/llama-stack-spec.yaml

@@ -580,63 +580,6 @@ components:
       - uuid
       - dataset
       type: object
-    CreateMemoryBankRequest:
-      additionalProperties: false
-      properties:
-        config:
-          oneOf:
-          - additionalProperties: false
-            properties:
-              chunk_size_in_tokens:
-                type: integer
-              embedding_model:
-                type: string
-              overlap_size_in_tokens:
-                type: integer
-              type:
-                const: vector
-                default: vector
-                type: string
-            required:
-            - type
-            - embedding_model
-            - chunk_size_in_tokens
-            type: object
-          - additionalProperties: false
-            properties:
-              type:
-                const: keyvalue
-                default: keyvalue
-                type: string
-            required:
-            - type
-            type: object
-          - additionalProperties: false
-            properties:
-              type:
-                const: keyword
-                default: keyword
-                type: string
-            required:
-            - type
-            type: object
-          - additionalProperties: false
-            properties:
-              type:
-                const: graph
-                default: graph
-                type: string
-            required:
-            - type
-            type: object
-        name:
-          type: string
-        url:
-          $ref: '#/components/schemas/URL'
-      required:
-      - name
-      - config
-      type: object
     DPOAlignmentConfig:
       additionalProperties: false
       properties:
@@ -739,14 +682,6 @@ components:
       - rank
       - alpha
       type: object
-    DropMemoryBankRequest:
-      additionalProperties: false
-      properties:
-        bank_id:
-          type: string
-      required:
-      - bank_id
-      type: object
     EmbeddingsRequest:
       additionalProperties: false
       properties:
@@ -908,6 +843,21 @@ components:
       required:
       - document_ids
       type: object
+    GraphMemoryBankDef:
+      additionalProperties: false
+      properties:
+        identifier:
+          type: string
+        provider_id:
+          type: string
+        type:
+          const: graph
+          default: graph
+          type: string
+      required:
+      - identifier
+      - type
+      type: object
     HealthInfo:
       additionalProperties: false
       properties:
@@ -973,6 +923,36 @@ components:
       - bank_id
       - documents
       type: object
+    KeyValueMemoryBankDef:
+      additionalProperties: false
+      properties:
+        identifier:
+          type: string
+        provider_id:
+          type: string
+        type:
+          const: keyvalue
+          default: keyvalue
+          type: string
+      required:
+      - identifier
+      - type
+      type: object
+    KeywordMemoryBankDef:
+      additionalProperties: false
+      properties:
+        identifier:
+          type: string
+        provider_id:
+          type: string
+        type:
+          const: keyword
+          default: keyword
+          type: string
+      required:
+      - identifier
+      - type
+      type: object
     LogEventRequest:
       additionalProperties: false
       properties:
@@ -1015,66 +995,6 @@ components:
       - rank
       - alpha
       type: object
-    MemoryBank:
-      additionalProperties: false
-      properties:
-        bank_id:
-          type: string
-        config:
-          oneOf:
-          - additionalProperties: false
-            properties:
-              chunk_size_in_tokens:
-                type: integer
-              embedding_model:
-                type: string
-              overlap_size_in_tokens:
-                type: integer
-              type:
-                const: vector
-                default: vector
-                type: string
-            required:
-            - type
-            - embedding_model
-            - chunk_size_in_tokens
-            type: object
-          - additionalProperties: false
-            properties:
-              type:
-                const: keyvalue
-                default: keyvalue
-                type: string
-            required:
-            - type
-            type: object
-          - additionalProperties: false
-            properties:
-              type:
-                const: keyword
-                default: keyword
-                type: string
-            required:
-            - type
-            type: object
-          - additionalProperties: false
-            properties:
-              type:
-                const: graph
-                default: graph
-                type: string
-            required:
-            - type
-            type: object
-        name:
-          type: string
-        url:
-          $ref: '#/components/schemas/URL'
-      required:
-      - bank_id
-      - name
-      - config
-      type: object
     MemoryBankDocument:
       additionalProperties: false
       properties:
@@ -1107,41 +1027,6 @@ components:
       - content
       - metadata
       type: object
-    MemoryBankSpec:
-      additionalProperties: false
-      properties:
-        bank_type:
-          $ref: '#/components/schemas/MemoryBankType'
-        provider_config:
-          additionalProperties: false
-          properties:
-            config:
-              additionalProperties:
-                oneOf:
-                - type: 'null'
-                - type: boolean
-                - type: number
-                - type: string
-                - type: array
-                - type: object
-              type: object
-            provider_type:
-              type: string
-          required:
-          - provider_type
-          - config
-          type: object
-      required:
-      - bank_type
-      - provider_config
-      type: object
-    MemoryBankType:
-      enum:
-      - vector
-      - keyvalue
-      - keyword
-      - graph
-      type: string
     MemoryRetrievalStep:
       additionalProperties: false
       properties:
@@ -1349,36 +1234,18 @@ components:
       - value
       - unit
       type: object
-    Model:
+    ModelDef:
-      description: The model family and SKU of the model along with other parameters
-        corresponding to the model.
-    ModelServingSpec:
       additionalProperties: false
       properties:
+        identifier:
+          type: string
         llama_model:
-          $ref: '#/components/schemas/Model'
+          type: string
-        provider_config:
+        provider_id:
-          additionalProperties: false
-          properties:
-            config:
-              additionalProperties:
-                oneOf:
-                - type: 'null'
-                - type: boolean
-                - type: number
-                - type: string
-                - type: array
-                - type: object
-              type: object
-            provider_type:
           type: string
       required:
-          - provider_type
+      - identifier
-          - config
-          type: object
-      required:
       - llama_model
-      - provider_config
       type: object
     OptimizerConfig:
       additionalProperties: false
@@ -1554,13 +1421,13 @@ components:
     ProviderInfo:
       additionalProperties: false
       properties:
-        description:
+        provider_id:
           type: string
         provider_type:
           type: string
       required:
+      - provider_id
       - provider_type
-      - description
       type: object
     QLoraFinetuningConfig:
       additionalProperties: false
@@ -1650,6 +1517,56 @@ components:
       enum:
       - dpo
       type: string
+    RegisterMemoryBankRequest:
+      additionalProperties: false
+      properties:
+        memory_bank:
+          oneOf:
+          - $ref: '#/components/schemas/VectorMemoryBankDef'
+          - $ref: '#/components/schemas/KeyValueMemoryBankDef'
+          - $ref: '#/components/schemas/KeywordMemoryBankDef'
+          - $ref: '#/components/schemas/GraphMemoryBankDef'
+      required:
+      - memory_bank
+      type: object
+    RegisterModelRequest:
+      additionalProperties: false
+      properties:
+        model:
+          $ref: '#/components/schemas/ModelDef'
+      required:
+      - model
+      type: object
+    RegisterShieldRequest:
+      additionalProperties: false
+      properties:
+        shield:
+          additionalProperties: false
+          properties:
+            identifier:
+              type: string
+            params:
+              additionalProperties:
+                oneOf:
+                - type: 'null'
+                - type: boolean
+                - type: number
+                - type: string
+                - type: array
+                - type: object
+              type: object
+            provider_id:
+              type: string
+            type:
+              type: string
+          required:
+          - identifier
+          - type
+          - params
+          type: object
+      required:
+      - shield
+      type: object
     RestAPIExecutionConfig:
       additionalProperties: false
       properties:
@@ -1728,7 +1645,7 @@ components:
       properties:
         method:
           type: string
-        providers:
+        provider_types:
           items:
             type: string
           type: array
@@ -1737,7 +1654,7 @@ components:
       required:
       - route
       - method
-      - providers
+      - provider_types
       type: object
     RunShieldRequest:
       additionalProperties: false
@@ -1892,7 +1809,11 @@ components:
       additionalProperties: false
       properties:
         memory_bank:
-          $ref: '#/components/schemas/MemoryBank'
+          oneOf:
+          - $ref: '#/components/schemas/VectorMemoryBankDef'
+          - $ref: '#/components/schemas/KeyValueMemoryBankDef'
+          - $ref: '#/components/schemas/KeywordMemoryBankDef'
+          - $ref: '#/components/schemas/GraphMemoryBankDef'
         session_id:
           type: string
         session_name:
@@ -1935,13 +1856,12 @@ components:
       - step_id
       - step_type
       type: object
-    ShieldSpec:
+    ShieldDef:
       additionalProperties: false
       properties:
-        provider_config:
+        identifier:
-          additionalProperties: false
+          type: string
-          properties:
+        params:
-            config:
           additionalProperties:
             oneOf:
             - type: 'null'
@@ -1951,17 +1871,14 @@ components:
             - type: array
             - type: object
           type: object
-            provider_type:
+        provider_id:
+          type: string
+        type:
           type: string
       required:
-          - provider_type
+      - identifier
-          - config
+      - type
-          type: object
+      - params
-        shield_type:
-          type: string
-      required:
-      - shield_type
-      - provider_config
       type: object
     SpanEndPayload:
       additionalProperties: false
@@ -2571,6 +2488,29 @@ components:
       - role
       - content
       type: object
+    VectorMemoryBankDef:
+      additionalProperties: false
+      properties:
+        chunk_size_in_tokens:
+          type: integer
+        embedding_model:
+          type: string
+        identifier:
+          type: string
+        overlap_size_in_tokens:
+          type: integer
+        provider_id:
+          type: string
+        type:
+          const: vector
+          default: vector
+          type: string
+      required:
+      - identifier
+      - type
+      - embedding_model
+      - chunk_size_in_tokens
+      type: object
     ViolationLevel:
       enum:
       - info
@@ -2604,7 +2544,7 @@ info:
   description: "This is the specification of the llama stack that provides\n     \
     \           a set of endpoints and their corresponding interfaces that are tailored\
     \ to\n                best leverage Llama Models. The specification is still in\
-    \ draft and subject to change.\n                Generated at 2024-10-02 15:40:53.008257"
+    \ draft and subject to change.\n                Generated at 2024-10-08 15:18:57.600111"
   title: '[DRAFT] Llama Stack Specification'
   version: 0.0.1
 jsonSchemaDialect: https://json-schema.org/draft/2020-12/schema
@@ -3226,7 +3166,7 @@ paths:
           description: OK
       tags:
       - Inference
-  /memory/create:
+  /inference/register_model:
     post:
       parameters:
       - description: JSON-encoded provider data which will be made available to the
@@ -3240,17 +3180,13 @@ paths:
         content:
           application/json:
             schema:
-              $ref: '#/components/schemas/CreateMemoryBankRequest'
+              $ref: '#/components/schemas/RegisterModelRequest'
         required: true
       responses:
         '200':
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/MemoryBank'
           description: OK
       tags:
-      - Memory
+      - Models
   /memory/documents/delete:
     post:
       parameters:
@@ -3302,57 +3238,6 @@ paths:
           description: OK
       tags:
       - Memory
-  /memory/drop:
-    post:
-      parameters:
-      - description: JSON-encoded provider data which will be made available to the
-          adapter servicing the API
-        in: header
-        name: X-LlamaStack-ProviderData
-        required: false
-        schema:
-          type: string
-      requestBody:
-        content:
-          application/json:
-            schema:
-              $ref: '#/components/schemas/DropMemoryBankRequest'
-        required: true
-      responses:
-        '200':
-          content:
-            application/json:
-              schema:
-                type: string
-          description: OK
-      tags:
-      - Memory
-  /memory/get:
-    get:
-      parameters:
-      - in: query
-        name: bank_id
-        required: true
-        schema:
-          type: string
-      - description: JSON-encoded provider data which will be made available to the
-          adapter servicing the API
-        in: header
-        name: X-LlamaStack-ProviderData
-        required: false
-        schema:
-          type: string
-      responses:
-        '200':
-          content:
-            application/json:
-              schema:
-                oneOf:
-                - $ref: '#/components/schemas/MemoryBank'
-                - type: 'null'
-          description: OK
-      tags:
-      - Memory
   /memory/insert:
     post:
       parameters:
@@ -3374,25 +3259,6 @@ paths:
           description: OK
       tags:
       - Memory
-  /memory/list:
-    get:
-      parameters:
-      - description: JSON-encoded provider data which will be made available to the
-          adapter servicing the API
-        in: header
-        name: X-LlamaStack-ProviderData
-        required: false
-        schema:
-          type: string
-      responses:
-        '200':
-          content:
-            application/jsonl:
-              schema:
-                $ref: '#/components/schemas/MemoryBank'
-          description: OK
-      tags:
-      - Memory
   /memory/query:
     post:
       parameters:
@@ -3443,10 +3309,10 @@ paths:
     get:
       parameters:
       - in: query
-        name: bank_type
+        name: identifier
         required: true
         schema:
-          $ref: '#/components/schemas/MemoryBankType'
+          type: string
       - description: JSON-encoded provider data which will be made available to the
           adapter servicing the API
         in: header
@@ -3460,7 +3326,11 @@ paths:
             application/json:
               schema:
                 oneOf:
-                - $ref: '#/components/schemas/MemoryBankSpec'
+                - oneOf:
+                  - $ref: '#/components/schemas/VectorMemoryBankDef'
+                  - $ref: '#/components/schemas/KeyValueMemoryBankDef'
+                  - $ref: '#/components/schemas/KeywordMemoryBankDef'
+                  - $ref: '#/components/schemas/GraphMemoryBankDef'
                 - type: 'null'
           description: OK
       tags:
@@ -3480,15 +3350,40 @@ paths:
           content:
             application/jsonl:
               schema:
-                $ref: '#/components/schemas/MemoryBankSpec'
+                oneOf:
+                - $ref: '#/components/schemas/VectorMemoryBankDef'
+                - $ref: '#/components/schemas/KeyValueMemoryBankDef'
+                - $ref: '#/components/schemas/KeywordMemoryBankDef'
+                - $ref: '#/components/schemas/GraphMemoryBankDef'
           description: OK
       tags:
       - MemoryBanks
+  /memory_banks/register:
+    post:
+      parameters:
+      - description: JSON-encoded provider data which will be made available to the
+          adapter servicing the API
+        in: header
+        name: X-LlamaStack-ProviderData
+        required: false
+        schema:
+          type: string
+      requestBody:
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/RegisterMemoryBankRequest'
+        required: true
+      responses:
+        '200':
+          description: OK
+      tags:
+      - Memory
   /models/get:
     get:
       parameters:
       - in: query
-        name: core_model_id
+        name: identifier
         required: true
         schema:
           type: string
@@ -3505,7 +3400,7 @@ paths:
             application/json:
               schema:
                 oneOf:
-                - $ref: '#/components/schemas/ModelServingSpec'
+                - $ref: '#/components/schemas/ModelDef'
                 - type: 'null'
           description: OK
       tags:
@@ -3525,7 +3420,7 @@ paths:
           content:
             application/jsonl:
               schema:
-                $ref: '#/components/schemas/ModelServingSpec'
+                $ref: '#/components/schemas/ModelDef'
           description: OK
       tags:
       - Models
@@ -3760,6 +3655,27 @@ paths:
           description: OK
       tags:
       - Inspect
+  /safety/register_shield:
+    post:
+      parameters:
+      - description: JSON-encoded provider data which will be made available to the
+          adapter servicing the API
+        in: header
+        name: X-LlamaStack-ProviderData
+        required: false
+        schema:
+          type: string
+      requestBody:
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/RegisterShieldRequest'
+        required: true
+      responses:
+        '200':
+          description: OK
+      tags:
+      - Shields
   /safety/run_shield:
     post:
       parameters:
@@ -3806,7 +3722,29 @@ paths:
             application/json:
               schema:
                 oneOf:
-                - $ref: '#/components/schemas/ShieldSpec'
+                - additionalProperties: false
+                  properties:
+                    identifier:
+                      type: string
+                    params:
+                      additionalProperties:
+                        oneOf:
+                        - type: 'null'
+                        - type: boolean
+                        - type: number
+                        - type: string
+                        - type: array
+                        - type: object
+                      type: object
+                    provider_id:
+                      type: string
+                    type:
+                      type: string
+                  required:
+                  - identifier
+                  - type
+                  - params
+                  type: object
                 - type: 'null'
           description: OK
       tags:
@@ -3826,7 +3764,7 @@ paths:
           content:
             application/jsonl:
               schema:
-                $ref: '#/components/schemas/ShieldSpec'
+                $ref: '#/components/schemas/ShieldDef'
           description: OK
       tags:
       - Shields
@@ -3905,21 +3843,21 @@ security:
 servers:
 - url: http://any-hosted-llama-stack.com
 tags:
-- name: Datasets
-- name: Inspect
-- name: Memory
 - name: BatchInference
-- name: Agents
+- name: Datasets
 - name: Inference
-- name: Shields
-- name: SyntheticDataGeneration
-- name: Models
-- name: RewardScoring
-- name: MemoryBanks
-- name: Safety
 - name: Evaluations
-- name: Telemetry
+- name: Memory
+- name: Safety
 - name: PostTraining
+- name: MemoryBanks
+- name: Models
+- name: Shields
+- name: Inspect
+- name: SyntheticDataGeneration
+- name: Telemetry
+- name: Agents
+- name: RewardScoring
 - description: <SchemaDefinition schemaRef="#/components/schemas/BuiltinTool" />
   name: BuiltinTool
 - description: <SchemaDefinition schemaRef="#/components/schemas/CompletionMessage"
@@ -4123,11 +4061,6 @@ tags:
 - description: <SchemaDefinition schemaRef="#/components/schemas/CreateDatasetRequest"
     />
   name: CreateDatasetRequest
-- description: <SchemaDefinition schemaRef="#/components/schemas/CreateMemoryBankRequest"
-    />
-  name: CreateMemoryBankRequest
-- description: <SchemaDefinition schemaRef="#/components/schemas/MemoryBank" />
-  name: MemoryBank
 - description: <SchemaDefinition schemaRef="#/components/schemas/DeleteAgentsRequest"
     />
   name: DeleteAgentsRequest
@@ -4140,9 +4073,6 @@ tags:
 - description: <SchemaDefinition schemaRef="#/components/schemas/DeleteDocumentsRequest"
     />
   name: DeleteDocumentsRequest
-- description: <SchemaDefinition schemaRef="#/components/schemas/DropMemoryBankRequest"
-    />
-  name: DropMemoryBankRequest
 - description: <SchemaDefinition schemaRef="#/components/schemas/EmbeddingsRequest"
     />
   name: EmbeddingsRequest
@@ -4163,11 +4093,23 @@ tags:
 - description: <SchemaDefinition schemaRef="#/components/schemas/GetAgentsSessionRequest"
     />
   name: GetAgentsSessionRequest
+- description: <SchemaDefinition schemaRef="#/components/schemas/GraphMemoryBankDef"
+    />
+  name: GraphMemoryBankDef
+- description: <SchemaDefinition schemaRef="#/components/schemas/KeyValueMemoryBankDef"
+    />
+  name: KeyValueMemoryBankDef
+- description: <SchemaDefinition schemaRef="#/components/schemas/KeywordMemoryBankDef"
+    />
+  name: KeywordMemoryBankDef
 - description: 'A single session of an interaction with an Agentic System.
 
 
     <SchemaDefinition schemaRef="#/components/schemas/Session" />'
   name: Session
+- description: <SchemaDefinition schemaRef="#/components/schemas/VectorMemoryBankDef"
+    />
+  name: VectorMemoryBankDef
 - description: <SchemaDefinition schemaRef="#/components/schemas/AgentStepResponse"
     />
   name: AgentStepResponse
@@ -4189,21 +4131,8 @@ tags:
 - description: <SchemaDefinition schemaRef="#/components/schemas/EvaluationJobStatusResponse"
     />
   name: EvaluationJobStatusResponse
-- description: 'The model family and SKU of the model along with other parameters
+- description: <SchemaDefinition schemaRef="#/components/schemas/ModelDef" />
-    corresponding to the model.
+  name: ModelDef
-
-
-    <SchemaDefinition schemaRef="#/components/schemas/Model" />'
-  name: Model
-- description: <SchemaDefinition schemaRef="#/components/schemas/ModelServingSpec"
-    />
-  name: ModelServingSpec
-- description: <SchemaDefinition schemaRef="#/components/schemas/MemoryBankType" />
-  name: MemoryBankType
-- description: <SchemaDefinition schemaRef="#/components/schemas/MemoryBankSpec" />
-  name: MemoryBankSpec
-- description: <SchemaDefinition schemaRef="#/components/schemas/ShieldSpec" />
-  name: ShieldSpec
 - description: <SchemaDefinition schemaRef="#/components/schemas/Trace" />
   name: Trace
 - description: 'Checkpoint created during training runs
@@ -4243,6 +4172,8 @@ tags:
   name: ProviderInfo
 - description: <SchemaDefinition schemaRef="#/components/schemas/RouteInfo" />
   name: RouteInfo
+- description: <SchemaDefinition schemaRef="#/components/schemas/ShieldDef" />
+  name: ShieldDef
 - description: <SchemaDefinition schemaRef="#/components/schemas/LogSeverity" />
   name: LogSeverity
 - description: <SchemaDefinition schemaRef="#/components/schemas/MetricEvent" />
@@ -4282,6 +4213,15 @@ tags:
 - description: <SchemaDefinition schemaRef="#/components/schemas/QueryDocumentsResponse"
     />
   name: QueryDocumentsResponse
+- description: <SchemaDefinition schemaRef="#/components/schemas/RegisterMemoryBankRequest"
+    />
+  name: RegisterMemoryBankRequest
+- description: <SchemaDefinition schemaRef="#/components/schemas/RegisterModelRequest"
+    />
+  name: RegisterModelRequest
+- description: <SchemaDefinition schemaRef="#/components/schemas/RegisterShieldRequest"
+    />
+  name: RegisterShieldRequest
 - description: <SchemaDefinition schemaRef="#/components/schemas/DialogGenerations"
     />
   name: DialogGenerations
@@ -4387,7 +4327,6 @@ x-tagGroups:
   - CreateAgentSessionRequest
   - CreateAgentTurnRequest
   - CreateDatasetRequest
-  - CreateMemoryBankRequest
   - DPOAlignmentConfig
   - DeleteAgentsRequest
   - DeleteAgentsSessionRequest
@@ -4395,7 +4334,6 @@ x-tagGroups:
   - DeleteDocumentsRequest
   - DialogGenerations
   - DoraFinetuningConfig
-  - DropMemoryBankRequest
   - EmbeddingsRequest
   - EmbeddingsResponse
   - EvaluateQuestionAnsweringRequest
@@ -4409,22 +4347,21 @@ x-tagGroups:
   - FunctionCallToolDefinition
   - GetAgentsSessionRequest
   - GetDocumentsRequest
+  - GraphMemoryBankDef
   - HealthInfo
   - ImageMedia
   - InferenceStep
   - InsertDocumentsRequest
+  - KeyValueMemoryBankDef
+  - KeywordMemoryBankDef
   - LogEventRequest
   - LogSeverity
   - LoraFinetuningConfig
-  - MemoryBank
   - MemoryBankDocument
-  - MemoryBankSpec
-  - MemoryBankType
   - MemoryRetrievalStep
   - MemoryToolDefinition
   - MetricEvent
-  - Model
+  - ModelDef
-  - ModelServingSpec
   - OptimizerConfig
   - PhotogenToolDefinition
   - PostTrainingJob
@@ -4438,6 +4375,9 @@ x-tagGroups:
   - QueryDocumentsRequest
   - QueryDocumentsResponse
   - RLHFAlgorithm
+  - RegisterMemoryBankRequest
+  - RegisterModelRequest
+  - RegisterShieldRequest
   - RestAPIExecutionConfig
   - RestAPIMethod
   - RewardScoreRequest
@@ -4453,7 +4393,7 @@ x-tagGroups:
   - SearchToolDefinition
   - Session
   - ShieldCallStep
-  - ShieldSpec
+  - ShieldDef
   - SpanEndPayload
   - SpanStartPayload
   - SpanStatus
@@ -4483,5 +4423,6 @@ x-tagGroups:
   - UnstructuredLogEvent
   - UpdateDocumentsRequest
   - UserMessage
+  - VectorMemoryBankDef
   - ViolationLevel
   - WolframAlphaToolDefinition

llama_stack/apis/agents/agents.py

@@ -261,7 +261,7 @@ class Session(BaseModel):
     turns: List[Turn]
     started_at: datetime
 
-    memory_bank: Optional[MemoryBank] = None
+    memory_bank: Optional[MemoryBankDef] = None
 
 
 class AgentConfigCommon(BaseModel):
@@ -411,8 +411,10 @@ class Agents(Protocol):
         agent_config: AgentConfig,
     ) -> AgentCreateResponse: ...
 
+    # This method is not `async def` because it can result in either an
+    # `AsyncGenerator` or a `AgentTurnCreateResponse` depending on the value of `stream`.
     @webmethod(route="/agents/turn/create")
-    async def create_agent_turn(
+    def create_agent_turn(
         self,
         agent_id: str,
         session_id: str,

llama_stack/apis/agents/client.py

@@ -7,7 +7,7 @@
 import asyncio
 import json
 import os
-from typing import AsyncGenerator
+from typing import AsyncGenerator, Optional
 
 import fire
 import httpx
@@ -67,9 +67,17 @@ class AgentsClient(Agents):
             response.raise_for_status()
             return AgentSessionCreateResponse(**response.json())
 
-    async def create_agent_turn(
+    def create_agent_turn(
         self,
         request: AgentTurnCreateRequest,
+    ) -> AsyncGenerator:
+        if request.stream:
+            return self._stream_agent_turn(request)
+        else:
+            return self._nonstream_agent_turn(request)
+
+    async def _stream_agent_turn(
+        self, request: AgentTurnCreateRequest
     ) -> AsyncGenerator:
         async with httpx.AsyncClient() as client:
             async with client.stream(
@@ -93,6 +101,9 @@ class AgentsClient(Agents):
                             print(data)
                             print(f"Error with parsing or validation: {e}")
 
+    async def _nonstream_agent_turn(self, request: AgentTurnCreateRequest):
+        raise NotImplementedError("Non-streaming not implemented yet")
+
 
 async def _run_agent(
     api, model, tool_definitions, tool_prompt_format, user_prompts, attachments=None
@@ -132,8 +143,7 @@ async def _run_agent(
                 log.print()
 
 
-async def run_llama_3_1(host: str, port: int):
+async def run_llama_3_1(host: str, port: int, model: str = "Llama3.1-8B-Instruct"):
-    model = "Llama3.1-8B-Instruct"
     api = AgentsClient(f"http://{host}:{port}")
 
     tool_definitions = [
@@ -173,8 +183,7 @@ async def run_llama_3_1(host: str, port: int):
     await _run_agent(api, model, tool_definitions, ToolPromptFormat.json, user_prompts)
 
 
-async def run_llama_3_2_rag(host: str, port: int):
+async def run_llama_3_2_rag(host: str, port: int, model: str = "Llama3.2-3B-Instruct"):
-    model = "Llama3.2-3B-Instruct"
     api = AgentsClient(f"http://{host}:{port}")
 
     urls = [
@@ -215,8 +224,7 @@ async def run_llama_3_2_rag(host: str, port: int):
     )
 
 
-async def run_llama_3_2(host: str, port: int):
+async def run_llama_3_2(host: str, port: int, model: str = "Llama3.2-3B-Instruct"):
-    model = "Llama3.2-3B-Instruct"
     api = AgentsClient(f"http://{host}:{port}")
 
     # zero shot tools for llama3.2 text models
@@ -262,7 +270,7 @@ async def run_llama_3_2(host: str, port: int):
     )
 
 
-def main(host: str, port: int, run_type: str):
+def main(host: str, port: int, run_type: str, model: Optional[str] = None):
     assert run_type in [
         "tools_llama_3_1",
         "tools_llama_3_2",
@@ -274,7 +282,10 @@ def main(host: str, port: int, run_type: str):
         "tools_llama_3_2": run_llama_3_2,
         "rag_llama_3_2": run_llama_3_2_rag,
     }
-    asyncio.run(fn[run_type](host, port))
+    args = [host, port]
+    if model is not None:
+        args.append(model)
+    asyncio.run(fn[run_type](*args))
 
 
 if __name__ == "__main__":

llama_stack/apis/inference/client.py

@@ -42,10 +42,10 @@ class InferenceClient(Inference):
     async def shutdown(self) -> None:
         pass
 
-    async def completion(self, request: CompletionRequest) -> AsyncGenerator:
+    def completion(self, request: CompletionRequest) -> AsyncGenerator:
         raise NotImplementedError()
 
-    async def chat_completion(
+    def chat_completion(
         self,
         model: str,
         messages: List[Message],
@@ -66,6 +66,29 @@ class InferenceClient(Inference):
             stream=stream,
             logprobs=logprobs,
         )
+        if stream:
+            return self._stream_chat_completion(request)
+        else:
+            return self._nonstream_chat_completion(request)
+
+    async def _nonstream_chat_completion(
+        self, request: ChatCompletionRequest
+    ) -> ChatCompletionResponse:
+        async with httpx.AsyncClient() as client:
+            response = await client.post(
+                f"{self.base_url}/inference/chat_completion",
+                json=encodable_dict(request),
+                headers={"Content-Type": "application/json"},
+                timeout=20,
+            )
+
+            response.raise_for_status()
+            j = response.json()
+            return ChatCompletionResponse(**j)
+
+    async def _stream_chat_completion(
+        self, request: ChatCompletionRequest
+    ) -> AsyncGenerator:
         async with httpx.AsyncClient() as client:
             async with client.stream(
                 "POST",
@@ -77,7 +100,8 @@ class InferenceClient(Inference):
                 if response.status_code != 200:
                     content = await response.aread()
                     cprint(
-                        f"Error: HTTP {response.status_code} {content.decode()}", "red"
+                        f"Error: HTTP {response.status_code} {content.decode()}",
+                        "red",
                     )
                     return
 
@@ -85,40 +109,59 @@ class InferenceClient(Inference):
                     if line.startswith("data:"):
                         data = line[len("data: ") :]
                         try:
-                            if request.stream:
                             if "error" in data:
                                 cprint(data, "red")
                                 continue
 
-                                yield ChatCompletionResponseStreamChunk(
+                            yield ChatCompletionResponseStreamChunk(**json.loads(data))
-                                    **json.loads(data)
-                                )
-                            else:
-                                yield ChatCompletionResponse(**json.loads(data))
                         except Exception as e:
                             print(data)
                             print(f"Error with parsing or validation: {e}")
 
 
-async def run_main(host: str, port: int, stream: bool):
+async def run_main(
+    host: str, port: int, stream: bool, model: Optional[str], logprobs: bool
+):
     client = InferenceClient(f"http://{host}:{port}")
 
+    if not model:
+        model = "Llama3.1-8B-Instruct"
+
     message = UserMessage(
         content="hello world, write me a 2 sentence poem about the moon"
     )
     cprint(f"User>{message.content}", "green")
+
+    if logprobs:
+        logprobs_config = LogProbConfig(
+            top_k=1,
+        )
+    else:
+        logprobs_config = None
+
     iterator = client.chat_completion(
-        model="Llama3.1-8B-Instruct",
+        model=model,
         messages=[message],
         stream=stream,
+        logprobs=logprobs_config,
     )
+
+    if logprobs:
+        async for chunk in iterator:
+            cprint(f"Response: {chunk}", "red")
+    else:
         async for log in EventLogger().log(iterator):
             log.print()
 
 
-async def run_mm_main(host: str, port: int, stream: bool, path: str):
+async def run_mm_main(
+    host: str, port: int, stream: bool, path: Optional[str], model: Optional[str]
+):
     client = InferenceClient(f"http://{host}:{port}")
 
+    if not model:
+        model = "Llama3.2-11B-Vision-Instruct"
+
     message = UserMessage(
         content=[
             ImageMedia(image=URL(uri=f"file://{path}")),
@@ -127,7 +170,7 @@ async def run_mm_main(host: str, port: int, stream: bool, path: str):
     )
     cprint(f"User>{message.content}", "green")
     iterator = client.chat_completion(
-        model="Llama3.2-11B-Vision-Instruct",
+        model=model,
         messages=[message],
         stream=stream,
     )
@@ -135,11 +178,19 @@ async def run_mm_main(host: str, port: int, stream: bool, path: str):
         log.print()
 
 
-def main(host: str, port: int, stream: bool = True, mm: bool = False, file: str = None):
+def main(
+    host: str,
+    port: int,
+    stream: bool = True,
+    mm: bool = False,
+    logprobs: bool = False,
+    file: Optional[str] = None,
+    model: Optional[str] = None,
+):
     if mm:
-        asyncio.run(run_mm_main(host, port, stream, file))
+        asyncio.run(run_mm_main(host, port, stream, file, model))
     else:
-        asyncio.run(run_main(host, port, stream))
+        asyncio.run(run_main(host, port, stream, model, logprobs))
 
 
 if __name__ == "__main__":

llama_stack/apis/inference/inference.py

@@ -14,6 +14,7 @@ from pydantic import BaseModel, Field
 from typing_extensions import Annotated
 
 from llama_models.llama3.api.datatypes import *  # noqa: F403
+from llama_stack.apis.models import *  # noqa: F403
 
 
 class LogProbConfig(BaseModel):
@@ -172,9 +173,17 @@ class EmbeddingsResponse(BaseModel):
     embeddings: List[List[float]]
 
 
+class ModelStore(Protocol):
+    def get_model(self, identifier: str) -> ModelDef: ...
+
+
 class Inference(Protocol):
+    model_store: ModelStore
+
+    # This method is not `async def` because it can result in either an
+    # `AsyncGenerator` or a `CompletionResponse` depending on the value of `stream`.
     @webmethod(route="/inference/completion")
-    async def completion(
+    def completion(
         self,
         model: str,
         content: InterleavedTextMedia,
@@ -183,8 +192,10 @@ class Inference(Protocol):
         logprobs: Optional[LogProbConfig] = None,
     ) -> Union[CompletionResponse, CompletionResponseStreamChunk]: ...
 
+    # This method is not `async def` because it can result in either an
+    # `AsyncGenerator` or a `ChatCompletionResponse` depending on the value of `stream`.
     @webmethod(route="/inference/chat_completion")
-    async def chat_completion(
+    def chat_completion(
         self,
         model: str,
         messages: List[Message],
@@ -203,3 +214,6 @@ class Inference(Protocol):
         model: str,
         contents: List[InterleavedTextMedia],
     ) -> EmbeddingsResponse: ...
+
+    @webmethod(route="/inference/register_model")
+    async def register_model(self, model: ModelDef) -> None: ...

llama_stack/apis/inspect/inspect.py

@@ -12,15 +12,15 @@ from pydantic import BaseModel
 
 @json_schema_type
 class ProviderInfo(BaseModel):
+    provider_id: str
     provider_type: str
-    description: str
 
 
 @json_schema_type
 class RouteInfo(BaseModel):
     route: str
     method: str
-    providers: List[str]
+    provider_types: List[str]
 
 
 @json_schema_type

llama_stack/apis/memory/client.py

@@ -13,11 +13,11 @@ from typing import Any, Dict, List, Optional
 
 import fire
 import httpx
-from termcolor import cprint
 
 from llama_stack.distribution.datatypes import RemoteProviderConfig
 
 from llama_stack.apis.memory import *  # noqa: F403
+from llama_stack.apis.memory_banks.client import MemoryBanksClient
 from llama_stack.providers.utils.memory.file_utils import data_url_from_file
 
 
@@ -35,44 +35,16 @@ class MemoryClient(Memory):
     async def shutdown(self) -> None:
         pass
 
-    async def get_memory_bank(self, bank_id: str) -> Optional[MemoryBank]:
+    async def register_memory_bank(self, memory_bank: MemoryBankDef) -> None:
         async with httpx.AsyncClient() as client:
-            r = await client.get(
+            response = await client.post(
-                f"{self.base_url}/memory/get",
+                f"{self.base_url}/memory/register_memory_bank",
-                params={
-                    "bank_id": bank_id,
-                },
-                headers={"Content-Type": "application/json"},
-                timeout=20,
-            )
-            r.raise_for_status()
-            d = r.json()
-            if not d:
-                return None
-            return MemoryBank(**d)
-
-    async def create_memory_bank(
-        self,
-        name: str,
-        config: MemoryBankConfig,
-        url: Optional[URL] = None,
-    ) -> MemoryBank:
-        async with httpx.AsyncClient() as client:
-            r = await client.post(
-                f"{self.base_url}/memory/create",
                 json={
-                    "name": name,
+                    "memory_bank": json.loads(memory_bank.json()),
-                    "config": config.dict(),
-                    "url": url,
                 },
                 headers={"Content-Type": "application/json"},
-                timeout=20,
             )
-            r.raise_for_status()
+            response.raise_for_status()
-            d = r.json()
-            if not d:
-                return None
-            return MemoryBank(**d)
 
     async def insert_documents(
         self,
@@ -114,22 +86,20 @@ class MemoryClient(Memory):
 
 async def run_main(host: str, port: int, stream: bool):
     client = MemoryClient(f"http://{host}:{port}")
+    banks_client = MemoryBanksClient(f"http://{host}:{port}")
 
-    # create a memory bank
+    bank = VectorMemoryBankDef(
-    bank = await client.create_memory_bank(
+        identifier="test_bank",
-        name="test_bank",
+        provider_id="",
-        config=VectorMemoryBankConfig(
-            bank_id="test_bank",
         embedding_model="all-MiniLM-L6-v2",
         chunk_size_in_tokens=512,
         overlap_size_in_tokens=64,
-        ),
     )
-    cprint(json.dumps(bank.dict(), indent=4), "green")
+    await client.register_memory_bank(bank)
 
-    retrieved_bank = await client.get_memory_bank(bank.bank_id)
+    retrieved_bank = await banks_client.get_memory_bank(bank.identifier)
     assert retrieved_bank is not None
-    assert retrieved_bank.config.embedding_model == "all-MiniLM-L6-v2"
+    assert retrieved_bank.embedding_model == "all-MiniLM-L6-v2"
 
     urls = [
         "memory_optimizations.rst",
@@ -162,13 +132,13 @@ async def run_main(host: str, port: int, stream: bool):
 
     # insert some documents
     await client.insert_documents(
-        bank_id=bank.bank_id,
+        bank_id=bank.identifier,
         documents=documents,
     )
 
     # query the documents
     response = await client.query_documents(
-        bank_id=bank.bank_id,
+        bank_id=bank.identifier,
         query=[
             "How do I use Lora?",
         ],
@@ -178,7 +148,7 @@ async def run_main(host: str, port: int, stream: bool):
         print(f"Chunk:\n========\n{chunk}\n========\n")
 
     response = await client.query_documents(
-        bank_id=bank.bank_id,
+        bank_id=bank.identifier,
         query=[
             "Tell me more about llama3 and torchtune",
         ],

llama_stack/apis/memory/memory.py

@@ -13,9 +13,9 @@ from typing import List, Optional, Protocol
 from llama_models.schema_utils import json_schema_type, webmethod
 
 from pydantic import BaseModel, Field
-from typing_extensions import Annotated
 
 from llama_models.llama3.api.datatypes import *  # noqa: F403
+from llama_stack.apis.memory_banks import *  # noqa: F403
 
 
 @json_schema_type
@@ -26,44 +26,6 @@ class MemoryBankDocument(BaseModel):
     metadata: Dict[str, Any] = Field(default_factory=dict)
 
 
-@json_schema_type
-class MemoryBankType(Enum):
-    vector = "vector"
-    keyvalue = "keyvalue"
-    keyword = "keyword"
-    graph = "graph"
-
-
-class VectorMemoryBankConfig(BaseModel):
-    type: Literal[MemoryBankType.vector.value] = MemoryBankType.vector.value
-    embedding_model: str
-    chunk_size_in_tokens: int
-    overlap_size_in_tokens: Optional[int] = None
-
-
-class KeyValueMemoryBankConfig(BaseModel):
-    type: Literal[MemoryBankType.keyvalue.value] = MemoryBankType.keyvalue.value
-
-
-class KeywordMemoryBankConfig(BaseModel):
-    type: Literal[MemoryBankType.keyword.value] = MemoryBankType.keyword.value
-
-
-class GraphMemoryBankConfig(BaseModel):
-    type: Literal[MemoryBankType.graph.value] = MemoryBankType.graph.value
-
-
-MemoryBankConfig = Annotated[
-    Union[
-        VectorMemoryBankConfig,
-        KeyValueMemoryBankConfig,
-        KeywordMemoryBankConfig,
-        GraphMemoryBankConfig,
-    ],
-    Field(discriminator="type"),
-]
-
-
 class Chunk(BaseModel):
     content: InterleavedTextMedia
     token_count: int
@@ -76,45 +38,12 @@ class QueryDocumentsResponse(BaseModel):
     scores: List[float]
 
 
-@json_schema_type
+class MemoryBankStore(Protocol):
-class QueryAPI(Protocol):
+    def get_memory_bank(self, bank_id: str) -> Optional[MemoryBankDef]: ...
-    @webmethod(route="/query_documents")
-    def query_documents(
-        self,
-        query: InterleavedTextMedia,
-        params: Optional[Dict[str, Any]] = None,
-    ) -> QueryDocumentsResponse: ...
-
-
-@json_schema_type
-class MemoryBank(BaseModel):
-    bank_id: str
-    name: str
-    config: MemoryBankConfig
-    # if there's a pre-existing (reachable-from-distribution) store which supports QueryAPI
-    url: Optional[URL] = None
 
 
 class Memory(Protocol):
-    @webmethod(route="/memory/create")
+    memory_bank_store: MemoryBankStore
-    async def create_memory_bank(
-        self,
-        name: str,
-        config: MemoryBankConfig,
-        url: Optional[URL] = None,
-    ) -> MemoryBank: ...
-
-    @webmethod(route="/memory/list", method="GET")
-    async def list_memory_banks(self) -> List[MemoryBank]: ...
-
-    @webmethod(route="/memory/get", method="GET")
-    async def get_memory_bank(self, bank_id: str) -> Optional[MemoryBank]: ...
-
-    @webmethod(route="/memory/drop", method="DELETE")
-    async def drop_memory_bank(
-        self,
-        bank_id: str,
-    ) -> str: ...
 
     # this will just block now until documents are inserted, but it should
     # probably return a Job instance which can be polled for completion
@@ -154,3 +83,6 @@ class Memory(Protocol):
         bank_id: str,
         document_ids: List[str],
     ) -> None: ...
+
+    @webmethod(route="/memory/register_memory_bank")
+    async def register_memory_bank(self, memory_bank: MemoryBankDef) -> None: ...

llama_stack/apis/memory_banks/client.py

@@ -6,7 +6,7 @@
 
 import asyncio
 
-from typing import List, Optional
+from typing import Any, Dict, List, Optional
 
 import fire
 import httpx
@@ -15,6 +15,25 @@ from termcolor import cprint
 from .memory_banks import *  # noqa: F403
 
 
+def deserialize_memory_bank_def(j: Optional[Dict[str, Any]]) -> MemoryBankDef:
+    if j is None:
+        return None
+
+    if "type" not in j:
+        raise ValueError("Memory bank type not specified")
+    type = j["type"]
+    if type == MemoryBankType.vector.value:
+        return VectorMemoryBankDef(**j)
+    elif type == MemoryBankType.keyvalue.value:
+        return KeyValueMemoryBankDef(**j)
+    elif type == MemoryBankType.keyword.value:
+        return KeywordMemoryBankDef(**j)
+    elif type == MemoryBankType.graph.value:
+        return GraphMemoryBankDef(**j)
+    else:
+        raise ValueError(f"Unknown memory bank type: {type}")
+
+
 class MemoryBanksClient(MemoryBanks):
     def __init__(self, base_url: str):
         self.base_url = base_url
@@ -25,37 +44,36 @@ class MemoryBanksClient(MemoryBanks):
     async def shutdown(self) -> None:
         pass
 
-    async def list_available_memory_banks(self) -> List[MemoryBankSpec]:
+    async def list_memory_banks(self) -> List[MemoryBankDef]:
         async with httpx.AsyncClient() as client:
             response = await client.get(
                 f"{self.base_url}/memory_banks/list",
                 headers={"Content-Type": "application/json"},
             )
             response.raise_for_status()
-            return [MemoryBankSpec(**x) for x in response.json()]
+            return [deserialize_memory_bank_def(x) for x in response.json()]
 
-    async def get_serving_memory_bank(
+    async def get_memory_bank(
-        self, bank_type: MemoryBankType
+        self,
-    ) -> Optional[MemoryBankSpec]:
+        identifier: str,
+    ) -> Optional[MemoryBankDef]:
         async with httpx.AsyncClient() as client:
             response = await client.get(
                 f"{self.base_url}/memory_banks/get",
                 params={
-                    "bank_type": bank_type.value,
+                    "identifier": identifier,
                 },
                 headers={"Content-Type": "application/json"},
             )
             response.raise_for_status()
             j = response.json()
-            if j is None:
+            return deserialize_memory_bank_def(j)
-                return None
-            return MemoryBankSpec(**j)
 
 
 async def run_main(host: str, port: int, stream: bool):
     client = MemoryBanksClient(f"http://{host}:{port}")
 
-    response = await client.list_available_memory_banks()
+    response = await client.list_memory_banks()
     cprint(f"list_memory_banks response={response}", "green")
 
 

llama_stack/apis/memory_banks/memory_banks.py

@@ -4,29 +4,67 @@
 # This source code is licensed under the terms described in the LICENSE file in
 # the root directory of this source tree.
 
-from typing import List, Optional, Protocol
+from enum import Enum
+from typing import List, Literal, Optional, Protocol, Union
 
 from llama_models.schema_utils import json_schema_type, webmethod
 from pydantic import BaseModel, Field
-
+from typing_extensions import Annotated
-from llama_stack.apis.memory import MemoryBankType
-
-from llama_stack.distribution.datatypes import GenericProviderConfig
 
 
 @json_schema_type
-class MemoryBankSpec(BaseModel):
+class MemoryBankType(Enum):
-    bank_type: MemoryBankType
+    vector = "vector"
-    provider_config: GenericProviderConfig = Field(
+    keyvalue = "keyvalue"
-        description="Provider config for the model, including provider_type, and corresponding config. ",
+    keyword = "keyword"
-    )
+    graph = "graph"
+
+
+class CommonDef(BaseModel):
+    identifier: str
+    provider_id: Optional[str] = None
+
+
+@json_schema_type
+class VectorMemoryBankDef(CommonDef):
+    type: Literal[MemoryBankType.vector.value] = MemoryBankType.vector.value
+    embedding_model: str
+    chunk_size_in_tokens: int
+    overlap_size_in_tokens: Optional[int] = None
+
+
+@json_schema_type
+class KeyValueMemoryBankDef(CommonDef):
+    type: Literal[MemoryBankType.keyvalue.value] = MemoryBankType.keyvalue.value
+
+
+@json_schema_type
+class KeywordMemoryBankDef(CommonDef):
+    type: Literal[MemoryBankType.keyword.value] = MemoryBankType.keyword.value
+
+
+@json_schema_type
+class GraphMemoryBankDef(CommonDef):
+    type: Literal[MemoryBankType.graph.value] = MemoryBankType.graph.value
+
+
+MemoryBankDef = Annotated[
+    Union[
+        VectorMemoryBankDef,
+        KeyValueMemoryBankDef,
+        KeywordMemoryBankDef,
+        GraphMemoryBankDef,
+    ],
+    Field(discriminator="type"),
+]
 
 
 class MemoryBanks(Protocol):
     @webmethod(route="/memory_banks/list", method="GET")
-    async def list_available_memory_banks(self) -> List[MemoryBankSpec]: ...
+    async def list_memory_banks(self) -> List[MemoryBankDef]: ...
 
     @webmethod(route="/memory_banks/get", method="GET")
-    async def get_serving_memory_bank(
+    async def get_memory_bank(self, identifier: str) -> Optional[MemoryBankDef]: ...
-        self, bank_type: MemoryBankType
+
-    ) -> Optional[MemoryBankSpec]: ...
+    @webmethod(route="/memory_banks/register", method="POST")
+    async def register_memory_bank(self, memory_bank: MemoryBankDef) -> None: ...

llama_stack/apis/models/client.py

@@ -56,7 +56,7 @@ async def run_main(host: str, port: int, stream: bool):
     response = await client.list_models()
     cprint(f"list_models response={response}", "green")
 
-    response = await client.get_model("Meta-Llama3.1-8B-Instruct")
+    response = await client.get_model("Llama3.1-8B-Instruct")
     cprint(f"get_model response={response}", "blue")
 
     response = await client.get_model("Llama-Guard-3-1B")

llama_stack/apis/models/models.py

@@ -6,27 +6,32 @@
 
 from typing import List, Optional, Protocol
 
-from llama_models.llama3.api.datatypes import Model
-
 from llama_models.schema_utils import json_schema_type, webmethod
 from pydantic import BaseModel, Field
 
-from llama_stack.distribution.datatypes import GenericProviderConfig
-
 
 @json_schema_type
-class ModelServingSpec(BaseModel):
+class ModelDef(BaseModel):
-    llama_model: Model = Field(
+    identifier: str = Field(
-        description="All metadatas associated with llama model (defined in llama_models.models.sku_list).",
+        description="A unique identifier for the model type",
     )
-    provider_config: GenericProviderConfig = Field(
+    llama_model: str = Field(
-        description="Provider config for the model, including provider_type, and corresponding config. ",
+        description="Pointer to the core Llama family model",
     )
+    provider_id: Optional[str] = Field(
+        default=None, description="The provider instance which serves this model"
+    )
+    # For now, we are only supporting core llama models but as soon as finetuned
+    # and other custom models (for example various quantizations) are allowed, there
+    # will be more metadata fields here
 
 
 class Models(Protocol):
     @webmethod(route="/models/list", method="GET")
-    async def list_models(self) -> List[ModelServingSpec]: ...
+    async def list_models(self) -> List[ModelDef]: ...
 
     @webmethod(route="/models/get", method="GET")
-    async def get_model(self, core_model_id: str) -> Optional[ModelServingSpec]: ...
+    async def get_model(self, identifier: str) -> Optional[ModelDef]: ...
+
+    @webmethod(route="/models/register", method="POST")
+    async def register_model(self, model: ModelDef) -> None: ...

llama_stack/apis/safety/client.py

@@ -96,12 +96,6 @@ async def run_main(host: str, port: int, image_path: str = None):
         )
         print(response)
 
-        response = await client.run_shield(
-            shield_type="injection_shield",
-            messages=[message],
-        )
-        print(response)
-
 
 def main(host: str, port: int, image: str = None):
     asyncio.run(run_main(host, port, image))

llama_stack/apis/safety/safety.py

@@ -11,6 +11,7 @@ from llama_models.schema_utils import json_schema_type, webmethod
 from pydantic import BaseModel
 
 from llama_models.llama3.api.datatypes import *  # noqa: F403
+from llama_stack.apis.shields import *  # noqa: F403
 
 
 @json_schema_type
@@ -37,8 +38,17 @@ class RunShieldResponse(BaseModel):
     violation: Optional[SafetyViolation] = None
 
 
+class ShieldStore(Protocol):
+    def get_shield(self, identifier: str) -> ShieldDef: ...
+
+
 class Safety(Protocol):
+    shield_store: ShieldStore
+
     @webmethod(route="/safety/run_shield")
     async def run_shield(
         self, shield_type: str, messages: List[Message], params: Dict[str, Any] = None
     ) -> RunShieldResponse: ...
+
+    @webmethod(route="/safety/register_shield")
+    async def register_shield(self, shield: ShieldDef) -> None: ...

llama_stack/apis/shields/shields.py

@@ -4,25 +4,43 @@
 # This source code is licensed under the terms described in the LICENSE file in
 # the root directory of this source tree.
 
-from typing import List, Optional, Protocol
+from enum import Enum
+from typing import Any, Dict, List, Optional, Protocol
 
 from llama_models.schema_utils import json_schema_type, webmethod
 from pydantic import BaseModel, Field
 
-from llama_stack.distribution.datatypes import GenericProviderConfig
-
 
 @json_schema_type
-class ShieldSpec(BaseModel):
+class ShieldType(Enum):
-    shield_type: str
+    generic_content_shield = "generic_content_shield"
-    provider_config: GenericProviderConfig = Field(
+    llama_guard = "llama_guard"
-        description="Provider config for the model, including provider_type, and corresponding config. ",
+    code_scanner = "code_scanner"
+    prompt_guard = "prompt_guard"
+
+
+class ShieldDef(BaseModel):
+    identifier: str = Field(
+        description="A unique identifier for the shield type",
+    )
+    type: str = Field(
+        description="The type of shield this is; the value is one of the ShieldType enum"
+    )
+    provider_id: Optional[str] = Field(
+        default=None, description="The provider instance which serves this shield"
+    )
+    params: Dict[str, Any] = Field(
+        default_factory=dict,
+        description="Any additional parameters needed for this shield",
     )
 
 
 class Shields(Protocol):
     @webmethod(route="/shields/list", method="GET")
-    async def list_shields(self) -> List[ShieldSpec]: ...
+    async def list_shields(self) -> List[ShieldDef]: ...
 
     @webmethod(route="/shields/get", method="GET")
-    async def get_shield(self, shield_type: str) -> Optional[ShieldSpec]: ...
+    async def get_shield(self, shield_type: str) -> Optional[ShieldDef]: ...
+
+    @webmethod(route="/shields/register", method="POST")
+    async def register_shield(self, shield: ShieldDef) -> None: ...

llama_stack/cli/download.py

@@ -158,11 +158,10 @@ def run_download_cmd(args: argparse.Namespace, parser: argparse.ArgumentParser):
         info = prompt_guard_download_info()
     else:
         model = resolve_model(args.model_id)
-        info = llama_meta_net_info(model)
-
         if model is None:
             parser.error(f"Model {args.model_id} not found")
             return
+        info = llama_meta_net_info(model)
 
     if args.source == "huggingface":
         _hf_download(model, args.hf_token, args.ignore_patterns, parser)
@@ -170,7 +169,7 @@ def run_download_cmd(args: argparse.Namespace, parser: argparse.ArgumentParser):
         meta_url = args.meta_url
         if not meta_url:
             meta_url = input(
-                "Please provide the signed URL you received via email (e.g., https://llama3-1.llamameta.net/*?Policy...): "
+                "Please provide the signed URL you received via email after visiting https://www.llama.com/llama-downloads/ (e.g., https://llama3-1.llamameta.net/*?Policy...): "
             )
             assert meta_url is not None and "llamameta.net" in meta_url
         _meta_download(model, meta_url, info)

llama_stack/cli/stack/build.py

@@ -22,7 +22,7 @@ def available_templates_specs() -> List[BuildConfig]:
     import yaml
 
     template_specs = []
-    for p in TEMPLATES_PATH.rglob("*.yaml"):
+    for p in TEMPLATES_PATH.rglob("*build.yaml"):
         with open(p, "r") as f:
             build_config = BuildConfig(**yaml.safe_load(f))
             template_specs.append(build_config)
@@ -105,8 +105,7 @@ class StackBuild(Subcommand):
 
         import yaml
 
-        from llama_stack.distribution.build import ApiInput, build_image, ImageType
+        from llama_stack.distribution.build import build_image, ImageType
-
         from llama_stack.distribution.utils.config_dirs import DISTRIBS_BASE_DIR
         from llama_stack.distribution.utils.serialize import EnumEncoder
         from termcolor import cprint
@@ -137,16 +136,19 @@ class StackBuild(Subcommand):
             if build_config.image_type == "conda"
             else (f"llamastack-{build_config.name}")
         )
+        if build_config.image_type == "conda":
             cprint(
                 f"You can now run `llama stack configure {configure_name}`",
                 color="green",
             )
+        else:
+            cprint(
+                f"You can now run `llama stack run {build_config.name}`",
+                color="green",
+            )
 
     def _run_template_list_cmd(self, args: argparse.Namespace) -> None:
         import json
-
-        import yaml
-
         from llama_stack.cli.table import print_table
 
         # eventually, this should query a registry at llama.meta.com/llamastack/distributions
@@ -172,9 +174,11 @@ class StackBuild(Subcommand):
         )
 
     def _run_stack_build_command(self, args: argparse.Namespace) -> None:
+        import textwrap
         import yaml
         from llama_stack.distribution.distribution import get_provider_registry
         from prompt_toolkit import prompt
+        from prompt_toolkit.completion import WordCompleter
         from prompt_toolkit.validation import Validator
         from termcolor import cprint
 
@@ -238,26 +242,29 @@ class StackBuild(Subcommand):
             )
 
             cprint(
-                "\n Llama Stack is composed of several APIs working together. Let's configure the providers (implementations) you want to use for these APIs.",
+                textwrap.dedent(
+                    """
+                Llama Stack is composed of several APIs working together. Let's select
+                the provider types (implementations) you want to use for these APIs.
+                """,
+                ),
                 color="green",
             )
 
+            print("Tip: use <TAB> to see options for the providers.\n")
+
             providers = dict()
             for api, providers_for_api in get_provider_registry().items():
+                available_providers = [
+                    x for x in providers_for_api.keys() if x != "remote"
+                ]
                 api_provider = prompt(
-                    "> Enter provider for the {} API: (default=meta-reference): ".format(
+                    "> Enter provider for API {}: ".format(api.value),
-                        api.value
+                    completer=WordCompleter(available_providers),
-                    ),
+                    complete_while_typing=True,
                     validator=Validator.from_callable(
-                        lambda x: x in providers_for_api,
+                        lambda x: x in available_providers,
-                        error_message="Invalid provider, please enter one of the following: {}".format(
+                        error_message="Invalid provider, use <TAB> to see options",
-                            list(providers_for_api.keys())
-                        ),
-                    ),
-                    default=(
-                        "meta-reference"
-                        if "meta-reference" in providers_for_api
-                        else list(providers_for_api.keys())[0]
                     ),
                 )
 

llama_stack/cli/stack/configure.py

@@ -71,10 +71,8 @@ class StackConfigure(Subcommand):
         conda_dir = (
             Path(os.path.expanduser("~/.conda/envs")) / f"llamastack-{args.config}"
         )
-        output = subprocess.check_output(
+        output = subprocess.check_output(["bash", "-c", "conda info --json"])
-            ["bash", "-c", "conda info --json -a | jq '.envs'"]
+        conda_envs = json.loads(output.decode("utf-8"))["envs"]
-        )
-        conda_envs = json.loads(output.decode("utf-8"))
 
         for x in conda_envs:
             if x.endswith(f"/llamastack-{args.config}"):
@@ -129,7 +127,10 @@ class StackConfigure(Subcommand):
         import yaml
         from termcolor import cprint
 
-        from llama_stack.distribution.configure import configure_api_providers
+        from llama_stack.distribution.configure import (
+            configure_api_providers,
+            parse_and_maybe_upgrade_config,
+        )
         from llama_stack.distribution.utils.serialize import EnumEncoder
 
         builds_dir = BUILDS_BASE_DIR / build_config.image_type
@@ -145,13 +146,17 @@ class StackConfigure(Subcommand):
                 "yellow",
                 attrs=["bold"],
             )
-            config = StackRunConfig(**yaml.safe_load(run_config_file.read_text()))
+            config_dict = yaml.safe_load(run_config_file.read_text())
+            config = parse_and_maybe_upgrade_config(config_dict)
         else:
             config = StackRunConfig(
                 built_at=datetime.now(),
                 image_name=image_name,
-                apis_to_serve=[],
+                apis=list(build_config.distribution_spec.providers.keys()),
-                api_providers={},
+                providers={},
+                models=[],
+                shields=[],
+                memory_banks=[],
             )
 
         config = configure_api_providers(config, build_config.distribution_spec)

llama_stack/cli/stack/run.py

@@ -7,7 +7,6 @@
 import argparse
 
 from llama_stack.cli.subcommand import Subcommand
-from llama_stack.distribution.datatypes import *  # noqa: F403
 
 
 class StackRun(Subcommand):
@@ -46,10 +45,11 @@ class StackRun(Subcommand):
 
         import pkg_resources
         import yaml
+        from termcolor import cprint
 
         from llama_stack.distribution.build import ImageType
+        from llama_stack.distribution.configure import parse_and_maybe_upgrade_config
         from llama_stack.distribution.utils.config_dirs import BUILDS_BASE_DIR
-
         from llama_stack.distribution.utils.exec import run_with_pty
 
         if not args.config:
@@ -75,8 +75,10 @@ class StackRun(Subcommand):
             )
             return
 
+        cprint(f"Using config `{config_file}`", "green")
         with open(config_file, "r") as f:
-            config = StackRunConfig(**yaml.safe_load(f))
+            config_dict = yaml.safe_load(config_file.read_text())
+            config = parse_and_maybe_upgrade_config(config_dict)
 
         if config.docker_image:
             script = pkg_resources.resource_filename(

llama_stack/cli/tests/test_stack_build.py

@@ -1,105 +0,0 @@
-from argparse import Namespace
-from unittest.mock import MagicMock, patch
-
-import pytest
-from llama_stack.distribution.datatypes import BuildConfig
-from llama_stack.cli.stack.build import StackBuild
-
-
-# temporary while we make the tests work
-pytest.skip(allow_module_level=True)
-
-
-@pytest.fixture
-def stack_build():
-    parser = MagicMock()
-    subparsers = MagicMock()
-    return StackBuild(subparsers)
-
-
-def test_stack_build_initialization(stack_build):
-    assert stack_build.parser is not None
-    assert stack_build.parser.set_defaults.called_once_with(
-        func=stack_build._run_stack_build_command
-    )
-
-
-@patch("llama_stack.distribution.build.build_image")
-def test_run_stack_build_command_with_config(
-    mock_build_image, mock_build_config, stack_build
-):
-    args = Namespace(
-        config="test_config.yaml",
-        template=None,
-        list_templates=False,
-        name=None,
-        image_type="conda",
-    )
-
-    with patch("builtins.open", MagicMock()):
-        with patch("yaml.safe_load") as mock_yaml_load:
-            mock_yaml_load.return_value = {"name": "test_build", "image_type": "conda"}
-            mock_build_config.return_value = MagicMock()
-
-            stack_build._run_stack_build_command(args)
-
-            mock_build_config.assert_called_once()
-            mock_build_image.assert_called_once()
-
-
-@patch("llama_stack.cli.table.print_table")
-def test_run_stack_build_command_list_templates(mock_print_table, stack_build):
-    args = Namespace(list_templates=True)
-
-    stack_build._run_stack_build_command(args)
-
-    mock_print_table.assert_called_once()
-
-
-@patch("prompt_toolkit.prompt")
-@patch("llama_stack.distribution.datatypes.BuildConfig")
-@patch("llama_stack.distribution.build.build_image")
-def test_run_stack_build_command_interactive(
-    mock_build_image, mock_build_config, mock_prompt, stack_build
-):
-    args = Namespace(
-        config=None, template=None, list_templates=False, name=None, image_type=None
-    )
-
-    mock_prompt.side_effect = [
-        "test_name",
-        "conda",
-        "meta-reference",
-        "test description",
-    ]
-    mock_build_config.return_value = MagicMock()
-
-    stack_build._run_stack_build_command(args)
-
-    assert mock_prompt.call_count == 4
-    mock_build_config.assert_called_once()
-    mock_build_image.assert_called_once()
-
-
-@patch("llama_stack.distribution.datatypes.BuildConfig")
-@patch("llama_stack.distribution.build.build_image")
-def test_run_stack_build_command_with_template(
-    mock_build_image, mock_build_config, stack_build
-):
-    args = Namespace(
-        config=None,
-        template="test_template",
-        list_templates=False,
-        name="test_name",
-        image_type="docker",
-    )
-
-    with patch("builtins.open", MagicMock()):
-        with patch("yaml.safe_load") as mock_yaml_load:
-            mock_yaml_load.return_value = {"name": "test_build", "image_type": "conda"}
-            mock_build_config.return_value = MagicMock()
-
-            stack_build._run_stack_build_command(args)
-
-            mock_build_config.assert_called_once()
-            mock_build_image.assert_called_once()

llama_stack/cli/tests/test_stack_config.py

@@ -0,0 +1,153 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.
+
+from datetime import datetime
+
+import pytest
+import yaml
+from llama_stack.distribution.configure import (
+    LLAMA_STACK_RUN_CONFIG_VERSION,
+    parse_and_maybe_upgrade_config,
+)
+
+
+@pytest.fixture
+def up_to_date_config():
+    return yaml.safe_load(
+        """
+        version: {version}
+        image_name: foo
+        apis_to_serve: []
+        built_at: {built_at}
+        models:
+          - identifier: model1
+            provider_id: provider1
+            llama_model: Llama3.1-8B-Instruct
+        shields:
+          - identifier: shield1
+            type: llama_guard
+            provider_id: provider1
+        memory_banks:
+          - identifier: memory1
+            type: vector
+            provider_id: provider1
+            embedding_model: all-MiniLM-L6-v2
+            chunk_size_in_tokens: 512
+        providers:
+          inference:
+            - provider_id: provider1
+              provider_type: meta-reference
+              config: {{}}
+          safety:
+            - provider_id: provider1
+              provider_type: meta-reference
+              config:
+                llama_guard_shield:
+                  model: Llama-Guard-3-1B
+                  excluded_categories: []
+                  disable_input_check: false
+                  disable_output_check: false
+                enable_prompt_guard: false
+          memory:
+            - provider_id: provider1
+              provider_type: meta-reference
+              config: {{}}
+    """.format(
+            version=LLAMA_STACK_RUN_CONFIG_VERSION, built_at=datetime.now().isoformat()
+        )
+    )
+
+
+@pytest.fixture
+def old_config():
+    return yaml.safe_load(
+        """
+        image_name: foo
+        built_at: {built_at}
+        apis_to_serve: []
+        routing_table:
+          inference:
+            - provider_type: remote::ollama
+              config:
+                host: localhost
+                port: 11434
+              routing_key: Llama3.2-1B-Instruct
+            - provider_type: meta-reference
+              config:
+                model: Llama3.1-8B-Instruct
+              routing_key: Llama3.1-8B-Instruct
+          safety:
+            - routing_key: ["shield1", "shield2"]
+              provider_type: meta-reference
+              config:
+                llama_guard_shield:
+                  model: Llama-Guard-3-1B
+                  excluded_categories: []
+                  disable_input_check: false
+                  disable_output_check: false
+                enable_prompt_guard: false
+          memory:
+            - routing_key: vector
+              provider_type: meta-reference
+              config: {{}}
+        api_providers:
+          telemetry:
+            provider_type: noop
+            config: {{}}
+    """.format(
+            built_at=datetime.now().isoformat()
+        )
+    )
+
+
+@pytest.fixture
+def invalid_config():
+    return yaml.safe_load(
+        """
+        routing_table: {}
+        api_providers: {}
+    """
+    )
+
+
+def test_parse_and_maybe_upgrade_config_up_to_date(up_to_date_config):
+    result = parse_and_maybe_upgrade_config(up_to_date_config)
+    assert result.version == LLAMA_STACK_RUN_CONFIG_VERSION
+    assert len(result.models) == 1
+    assert len(result.shields) == 1
+    assert len(result.memory_banks) == 1
+    assert "inference" in result.providers
+
+
+def test_parse_and_maybe_upgrade_config_old_format(old_config):
+    result = parse_and_maybe_upgrade_config(old_config)
+    assert result.version == LLAMA_STACK_RUN_CONFIG_VERSION
+    assert len(result.models) == 2
+    assert len(result.shields) == 2
+    assert len(result.memory_banks) == 1
+    assert all(
+        api in result.providers
+        for api in ["inference", "safety", "memory", "telemetry"]
+    )
+    safety_provider = result.providers["safety"][0]
+    assert safety_provider.provider_type == "meta-reference"
+    assert "llama_guard_shield" in safety_provider.config
+
+    inference_providers = result.providers["inference"]
+    assert len(inference_providers) == 2
+    assert set(x.provider_id for x in inference_providers) == {
+        "remote::ollama-00",
+        "meta-reference-01",
+    }
+
+    ollama = inference_providers[0]
+    assert ollama.provider_type == "remote::ollama"
+    assert ollama.config["port"] == 11434
+
+
+def test_parse_and_maybe_upgrade_config_invalid(invalid_config):
+    with pytest.raises(ValueError):
+        parse_and_maybe_upgrade_config(invalid_config)

llama_stack/distribution/build.py

@@ -8,15 +8,16 @@ from enum import Enum
 from typing import List, Optional
 
 import pkg_resources
+
+from llama_stack.distribution.utils.exec import run_with_pty
 from pydantic import BaseModel
 
 from termcolor import cprint
 
-from llama_stack.distribution.utils.exec import run_with_pty
-
 from llama_stack.distribution.datatypes import *  # noqa: F403
 from pathlib import Path
 
+from llama_stack.distribution.utils.config_dirs import BUILDS_BASE_DIR
 from llama_stack.distribution.distribution import get_provider_registry
 
 
@@ -95,6 +96,7 @@ def build_image(build_config: BuildConfig, build_file_path: Path):
             build_config.name,
             package_deps.docker_image,
             str(build_file_path),
+            str(BUILDS_BASE_DIR / ImageType.docker.value),
             " ".join(deps),
         ]
     else:

llama_stack/distribution/build_conda_env.sh

@@ -23,7 +23,7 @@ if [ "$#" -lt 3 ]; then
   exit 1
 fi
 
-special_pip_deps="$3"
+special_pip_deps="$4"
 
 set -euo pipefail
 

llama_stack/distribution/build_container.sh

@@ -10,7 +10,7 @@ if [ "$#" -lt 4 ]; then
   exit 1
 fi
 
-special_pip_deps="$5"
+special_pip_deps="$6"
 
 set -euo pipefail
 
@@ -18,7 +18,8 @@ build_name="$1"
 image_name="llamastack-$build_name"
 docker_base=$2
 build_file_path=$3
-pip_dependencies=$4
+host_build_dir=$4
+pip_dependencies=$5
 
 # Define color codes
 RED='\033[0;31m'
@@ -33,7 +34,8 @@ REPO_CONFIGS_DIR="$REPO_DIR/tmp/configs"
 
 TEMP_DIR=$(mktemp -d)
 
-llama stack configure $build_file_path --output-dir $REPO_CONFIGS_DIR
+llama stack configure $build_file_path
+cp $host_build_dir/$build_name-run.yaml $REPO_CONFIGS_DIR
 
 add_to_docker() {
   local input
@@ -132,6 +134,9 @@ fi
 
 set -x
 $DOCKER_BINARY build $DOCKER_OPTS -t $image_name -f "$TEMP_DIR/Dockerfile" "$REPO_DIR" $mounts
+
+# clean up tmp/configs
+rm -rf $REPO_CONFIGS_DIR
 set +x
 
 echo "Success! You can run it with: $DOCKER_BINARY $DOCKER_OPTS run -p 5000:5000 $image_name"

llama_stack/distribution/configure.py

@@ -3,171 +3,369 @@
 #
 # This source code is licensed under the terms described in the LICENSE file in
 # the root directory of this source tree.
+import textwrap
 
 from typing import Any
 
-from pydantic import BaseModel
+from llama_models.sku_list import (
+    llama3_1_family,
+    llama3_2_family,
+    llama3_family,
+    resolve_model,
+    safety_models,
+)
 
 from llama_stack.distribution.datatypes import *  # noqa: F403
 from prompt_toolkit import prompt
 from prompt_toolkit.validation import Validator
 from termcolor import cprint
 
-from llama_stack.apis.memory.memory import MemoryBankType
 from llama_stack.distribution.distribution import (
     builtin_automatically_routed_apis,
     get_provider_registry,
-    stack_apis,
 )
 from llama_stack.distribution.utils.dynamic import instantiate_class_type
-
 from llama_stack.distribution.utils.prompt_for_config import prompt_for_config
-from llama_stack.providers.impls.meta_reference.safety.config import (
+
-    MetaReferenceShieldType,
+
+from llama_stack.apis.models import *  # noqa: F403
+from llama_stack.apis.shields import *  # noqa: F403
+from llama_stack.apis.memory_banks import *  # noqa: F403
+
+
+ALLOWED_MODELS = (
+    llama3_family() + llama3_1_family() + llama3_2_family() + safety_models()
 )
 
 
-def make_routing_entry_type(config_class: Any):
+def configure_single_provider(
-    class BaseModelWithConfig(BaseModel):
+    registry: Dict[str, ProviderSpec], provider: Provider
-        routing_key: str
+) -> Provider:
-        config: config_class
+    provider_spec = registry[provider.provider_type]
-
-    return BaseModelWithConfig
-
-
-def get_builtin_apis(provider_backed_apis: List[str]) -> List[str]:
-    """Get corresponding builtin APIs given provider backed APIs"""
-    res = []
-    for inf in builtin_automatically_routed_apis():
-        if inf.router_api.value in provider_backed_apis:
-            res.append(inf.routing_table_api.value)
-
-    return res
-
-
-# TODO: make sure we can deal with existing configuration values correctly
-# instead of just overwriting them
-def configure_api_providers(
-    config: StackRunConfig, spec: DistributionSpec
-) -> StackRunConfig:
-    apis = config.apis_to_serve or list(spec.providers.keys())
-    # append the bulitin routing APIs
-    apis += get_builtin_apis(apis)
-
-    router_api2builtin_api = {
-        inf.router_api.value: inf.routing_table_api.value
-        for inf in builtin_automatically_routed_apis()
-    }
-
-    config.apis_to_serve = list(set([a for a in apis if a != "telemetry"]))
-
-    apis = [v.value for v in stack_apis()]
-    all_providers = get_provider_registry()
-
-    # configure simple case for with non-routing providers to api_providers
-    for api_str in spec.providers.keys():
-        if api_str not in apis:
-            raise ValueError(f"Unknown API `{api_str}`")
-
-        cprint(f"Configuring API `{api_str}`...", "green", attrs=["bold"])
-        api = Api(api_str)
-
-        p = spec.providers[api_str]
-        cprint(f"=== Configuring provider `{p}` for API {api_str}...", "green")
-
-        if isinstance(p, list):
-            cprint(
-                f"[WARN] Interactive configuration of multiple providers {p} is not supported, configuring {p[0]} only, please manually configure {p[1:]} in routing_table of run.yaml",
-                "yellow",
-            )
-            p = p[0]
-
-        provider_spec = all_providers[api][p]
     config_type = instantiate_class_type(provider_spec.config_class)
     try:
-            provider_config = config.api_providers.get(api_str)
+        if provider.config:
-            if provider_config:
+            existing = config_type(**provider.config)
-                existing = config_type(**provider_config.config)
         else:
             existing = None
     except Exception:
         existing = None
+
     cfg = prompt_for_config(config_type, existing)
-
+    return Provider(
-        if api_str in router_api2builtin_api:
+        provider_id=provider.provider_id,
-            # a routing api, we need to infer and assign it a routing_key and put it in the routing_table
+        provider_type=provider.provider_type,
-            routing_key = "<PLEASE_FILL_ROUTING_KEY>"
-            routing_entries = []
-            if api_str == "inference":
-                if hasattr(cfg, "model"):
-                    routing_key = cfg.model
-                else:
-                    routing_key = prompt(
-                        "> Please enter the supported model your provider has for inference: ",
-                        default="Meta-Llama3.1-8B-Instruct",
-                    )
-                routing_entries.append(
-                    RoutableProviderConfig(
-                        routing_key=routing_key,
-                        provider_type=p,
         config=cfg.dict(),
     )
+
+
+def configure_api_providers(
+    config: StackRunConfig, build_spec: DistributionSpec
+) -> StackRunConfig:
+    is_nux = len(config.providers) == 0
+
+    if is_nux:
+        print(
+            textwrap.dedent(
+                """
+        Llama Stack is composed of several APIs working together. For each API served by the Stack,
+        we need to configure the providers (implementations) you want to use for these APIs.
+"""
+            )
         )
 
-            if api_str == "safety":
+    provider_registry = get_provider_registry()
-                # TODO: add support for other safety providers, and simplify safety provider config
+    builtin_apis = [a.routing_table_api for a in builtin_automatically_routed_apis()]
-                if p == "meta-reference":
+
-                    routing_entries.append(
+    if config.apis:
-                        RoutableProviderConfig(
+        apis_to_serve = config.apis
-                            routing_key=[s.value for s in MetaReferenceShieldType],
-                            provider_type=p,
-                            config=cfg.dict(),
-                        )
-                    )
     else:
+        apis_to_serve = [a.value for a in Api if a not in (Api.telemetry, Api.inspect)]
+
+    for api_str in apis_to_serve:
+        api = Api(api_str)
+        if api in builtin_apis:
+            continue
+        if api not in provider_registry:
+            raise ValueError(f"Unknown API `{api_str}`")
+
+        existing_providers = config.providers.get(api_str, [])
+        if existing_providers:
             cprint(
-                        f"[WARN] Interactive configuration of safety provider {p} is not supported. Please look for `{routing_key}` in run.yaml and replace it appropriately.",
+                f"Re-configuring existing providers for API `{api_str}`...",
-                        "yellow",
+                "green",
                 attrs=["bold"],
             )
-                    routing_entries.append(
+            updated_providers = []
-                        RoutableProviderConfig(
+            for p in existing_providers:
-                            routing_key=routing_key,
+                print(f"> Configuring provider `({p.provider_type})`")
-                            provider_type=p,
+                updated_providers.append(
-                            config=cfg.dict(),
+                    configure_single_provider(provider_registry[api], p)
-                        )
-                    )
-
-            if api_str == "memory":
-                bank_types = list([x.value for x in MemoryBankType])
-                routing_key = prompt(
-                    "> Please enter the supported memory bank type your provider has for memory: ",
-                    default="vector",
-                    validator=Validator.from_callable(
-                        lambda x: x in bank_types,
-                        error_message="Invalid provider, please enter one of the following: {}".format(
-                            bank_types
-                        ),
-                    ),
-                )
-                routing_entries.append(
-                    RoutableProviderConfig(
-                        routing_key=routing_key,
-                        provider_type=p,
-                        config=cfg.dict(),
-                    )
-                )
-
-            config.routing_table[api_str] = routing_entries
-            config.api_providers[api_str] = PlaceholderProviderConfig(
-                providers=p if isinstance(p, list) else [p]
                 )
+                print("")
         else:
-            config.api_providers[api_str] = GenericProviderConfig(
+            # we are newly configuring this API
-                provider_type=p,
+            plist = build_spec.providers.get(api_str, [])
-                config=cfg.dict(),
+            plist = plist if isinstance(plist, list) else [plist]
+
+            if not plist:
+                raise ValueError(f"No provider configured for API {api_str}?")
+
+            cprint(f"Configuring API `{api_str}`...", "green", attrs=["bold"])
+            updated_providers = []
+            for i, provider_type in enumerate(plist):
+                print(f"> Configuring provider `({provider_type})`")
+                updated_providers.append(
+                    configure_single_provider(
+                        provider_registry[api],
+                        Provider(
+                            provider_id=(
+                                f"{provider_type}-{i:02d}"
+                                if len(plist) > 1
+                                else provider_type
+                            ),
+                            provider_type=provider_type,
+                            config={},
+                        ),
+                    )
+                )
+                print("")
+
+        config.providers[api_str] = updated_providers
+
+    if is_nux:
+        print(
+            textwrap.dedent(
+                """
+        =========================================================================================
+        Now let's configure the `objects` you will be serving via the stack. These are:
+
+        - Models: the Llama model SKUs you expect to inference (e.g., Llama3.2-1B-Instruct)
+        - Shields: the safety models you expect to use for safety (e.g., Llama-Guard-3-1B)
+        - Memory Banks: the memory banks you expect to use for memory (e.g., Vector stores)
+
+        This wizard will guide you through setting up one of each of these objects. You can
+        always add more later by editing the run.yaml file.
+        """
+            )
         )
 
+    object_types = {
+        "models": (ModelDef, configure_models, "inference"),
+        "shields": (ShieldDef, configure_shields, "safety"),
+        "memory_banks": (MemoryBankDef, configure_memory_banks, "memory"),
+    }
+    safety_providers = config.providers.get("safety", [])
+
+    for otype, (odef, config_method, api_str) in object_types.items():
+        existing_objects = getattr(config, otype)
+
+        if existing_objects:
+            cprint(
+                f"{len(existing_objects)} {otype} exist. Skipping...",
+                "blue",
+                attrs=["bold"],
+            )
+            updated_objects = existing_objects
+        else:
+            providers = config.providers.get(api_str, [])
+            if not providers:
+                updated_objects = []
+            else:
+                # we are newly configuring this API
+                cprint(f"Configuring `{otype}`...", "blue", attrs=["bold"])
+                updated_objects = config_method(
+                    config.providers[api_str], safety_providers
+                )
+
+        setattr(config, otype, updated_objects)
         print("")
 
     return config
+
+
+def get_llama_guard_model(safety_providers: List[Provider]) -> Optional[str]:
+    if not safety_providers:
+        return None
+
+    provider = safety_providers[0]
+    assert provider.provider_type == "meta-reference"
+
+    cfg = provider.config["llama_guard_shield"]
+    if not cfg:
+        return None
+    return cfg["model"]
+
+
+def configure_models(
+    providers: List[Provider], safety_providers: List[Provider]
+) -> List[ModelDef]:
+    model = prompt(
+        "> Please enter the model you want to serve: ",
+        default="Llama3.2-1B-Instruct",
+        validator=Validator.from_callable(
+            lambda x: resolve_model(x) is not None,
+            error_message="Model must be: {}".format(
+                [x.descriptor() for x in ALLOWED_MODELS]
+            ),
+        ),
+    )
+    model = ModelDef(
+        identifier=model,
+        llama_model=model,
+        provider_id=providers[0].provider_id,
+    )
+
+    ret = [model]
+    if llama_guard := get_llama_guard_model(safety_providers):
+        ret.append(
+            ModelDef(
+                identifier=llama_guard,
+                llama_model=llama_guard,
+                provider_id=providers[0].provider_id,
+            )
+        )
+
+    return ret
+
+
+def configure_shields(
+    providers: List[Provider], safety_providers: List[Provider]
+) -> List[ShieldDef]:
+    if get_llama_guard_model(safety_providers):
+        return [
+            ShieldDef(
+                identifier="llama_guard",
+                type="llama_guard",
+                provider_id=providers[0].provider_id,
+                params={},
+            )
+        ]
+
+    return []
+
+
+def configure_memory_banks(
+    providers: List[Provider], safety_providers: List[Provider]
+) -> List[MemoryBankDef]:
+    bank_name = prompt(
+        "> Please enter a name for your memory bank: ",
+        default="my-memory-bank",
+    )
+
+    return [
+        VectorMemoryBankDef(
+            identifier=bank_name,
+            provider_id=providers[0].provider_id,
+            embedding_model="all-MiniLM-L6-v2",
+            chunk_size_in_tokens=512,
+        )
+    ]
+
+
+def upgrade_from_routing_table_to_registry(
+    config_dict: Dict[str, Any],
+) -> Dict[str, Any]:
+    def get_providers(entries):
+        return [
+            Provider(
+                provider_id=(
+                    f"{entry['provider_type']}-{i:02d}"
+                    if len(entries) > 1
+                    else entry["provider_type"]
+                ),
+                provider_type=entry["provider_type"],
+                config=entry["config"],
+            )
+            for i, entry in enumerate(entries)
+        ]
+
+    providers_by_api = {}
+    models = []
+    shields = []
+    memory_banks = []
+
+    routing_table = config_dict.get("routing_table", {})
+    for api_str, entries in routing_table.items():
+        providers = get_providers(entries)
+        providers_by_api[api_str] = providers
+
+        if api_str == "inference":
+            for entry, provider in zip(entries, providers):
+                key = entry["routing_key"]
+                keys = key if isinstance(key, list) else [key]
+                for key in keys:
+                    models.append(
+                        ModelDef(
+                            identifier=key,
+                            provider_id=provider.provider_id,
+                            llama_model=key,
+                        )
+                    )
+        elif api_str == "safety":
+            for entry, provider in zip(entries, providers):
+                key = entry["routing_key"]
+                keys = key if isinstance(key, list) else [key]
+                for key in keys:
+                    shields.append(
+                        ShieldDef(
+                            identifier=key,
+                            type=ShieldType.llama_guard.value,
+                            provider_id=provider.provider_id,
+                        )
+                    )
+        elif api_str == "memory":
+            for entry, provider in zip(entries, providers):
+                key = entry["routing_key"]
+                keys = key if isinstance(key, list) else [key]
+                for key in keys:
+                    # we currently only support Vector memory banks so this is OK
+                    memory_banks.append(
+                        VectorMemoryBankDef(
+                            identifier=key,
+                            provider_id=provider.provider_id,
+                            embedding_model="all-MiniLM-L6-v2",
+                            chunk_size_in_tokens=512,
+                        )
+                    )
+    config_dict["models"] = models
+    config_dict["shields"] = shields
+    config_dict["memory_banks"] = memory_banks
+
+    provider_map = config_dict.get("api_providers", config_dict.get("provider_map", {}))
+    if provider_map:
+        for api_str, provider in provider_map.items():
+            if isinstance(provider, dict) and "provider_type" in provider:
+                providers_by_api[api_str] = [
+                    Provider(
+                        provider_id=f"{provider['provider_type']}",
+                        provider_type=provider["provider_type"],
+                        config=provider["config"],
+                    )
+                ]
+
+    config_dict["providers"] = providers_by_api
+
+    config_dict.pop("routing_table", None)
+    config_dict.pop("api_providers", None)
+    config_dict.pop("provider_map", None)
+
+    config_dict["apis"] = config_dict["apis_to_serve"]
+    config_dict.pop("apis_to_serve", None)
+
+    return config_dict
+
+
+def parse_and_maybe_upgrade_config(config_dict: Dict[str, Any]) -> StackRunConfig:
+    version = config_dict.get("version", None)
+    if version == LLAMA_STACK_RUN_CONFIG_VERSION:
+        return StackRunConfig(**config_dict)
+
+    if "models" not in config_dict:
+        print("Upgrading config...")
+        config_dict = upgrade_from_routing_table_to_registry(config_dict)
+
+    config_dict["version"] = LLAMA_STACK_RUN_CONFIG_VERSION
+    config_dict["built_at"] = datetime.now().isoformat()
+
+    return StackRunConfig(**config_dict)

llama_stack/distribution/datatypes.py

@@ -11,28 +11,32 @@ from typing import Dict, List, Optional, Union
 from pydantic import BaseModel, Field
 
 from llama_stack.providers.datatypes import *  # noqa: F403
+from llama_stack.apis.models import *  # noqa: F403
+from llama_stack.apis.shields import *  # noqa: F403
+from llama_stack.apis.memory_banks import *  # noqa: F403
+from llama_stack.apis.inference import Inference
+from llama_stack.apis.memory import Memory
+from llama_stack.apis.safety import Safety
 
 
-LLAMA_STACK_BUILD_CONFIG_VERSION = "v1"
+LLAMA_STACK_BUILD_CONFIG_VERSION = "2"
-LLAMA_STACK_RUN_CONFIG_VERSION = "v1"
+LLAMA_STACK_RUN_CONFIG_VERSION = "2"
 
 
 RoutingKey = Union[str, List[str]]
 
 
-class GenericProviderConfig(BaseModel):
+RoutableObject = Union[
-    provider_type: str
+    ModelDef,
-    config: Dict[str, Any]
+    ShieldDef,
+    MemoryBankDef,
+]
 
-
+RoutedProtocol = Union[
-class RoutableProviderConfig(GenericProviderConfig):
+    Inference,
-    routing_key: RoutingKey
+    Safety,
-
+    Memory,
-
+]
-class PlaceholderProviderConfig(BaseModel):
-    """Placeholder provider config for API whose provider are defined in routing_table"""
-
-    providers: List[str]
 
 
 # Example: /inference, /safety
@@ -53,18 +57,17 @@ class AutoRoutedProviderSpec(ProviderSpec):
 
 
 # Example: /models, /shields
-@json_schema_type
 class RoutingTableProviderSpec(ProviderSpec):
     provider_type: str = "routing_table"
     config_class: str = ""
     docker_image: Optional[str] = None
 
-    inner_specs: List[ProviderSpec]
+    router_api: Api
+    registry: List[RoutableObject]
     module: str
     pip_packages: List[str] = Field(default_factory=list)
 
 
-@json_schema_type
 class DistributionSpec(BaseModel):
     description: Optional[str] = Field(
         default="",
@@ -80,7 +83,12 @@ in the runtime configuration to help route to the correct provider.""",
     )
 
 
-@json_schema_type
+class Provider(BaseModel):
+    provider_id: str
+    provider_type: str
+    config: Dict[str, Any]
+
+
 class StackRunConfig(BaseModel):
     version: str = LLAMA_STACK_RUN_CONFIG_VERSION
     built_at: datetime
@@ -100,36 +108,39 @@ this could be just a hash
         default=None,
         description="Reference to the conda environment if this package refers to a conda environment",
     )
-    apis_to_serve: List[str] = Field(
+    apis: List[str] = Field(
+        default_factory=list,
         description="""
 The list of APIs to serve. If not specified, all APIs specified in the provider_map will be served""",
     )
 
-    api_providers: Dict[
+    providers: Dict[str, List[Provider]] = Field(
-        str, Union[GenericProviderConfig, PlaceholderProviderConfig]
-    ] = Field(
         description="""
-Provider configurations for each of the APIs provided by this package.
+One or more providers to use for each API. The same provider_type (e.g., meta-reference)
+can be instantiated multiple times (with different configs) if necessary.
 """,
     )
-    routing_table: Dict[str, List[RoutableProviderConfig]] = Field(
-        default_factory=dict,
-        description="""
 
-        E.g. The following is a ProviderRoutingEntry for models:
+    models: List[ModelDef] = Field(
-        - routing_key: Meta-Llama3.1-8B-Instruct
+        description="""
-          provider_type: meta-reference
+List of model definitions to serve. This list may get extended by
-          config:
+/models/register API calls at runtime.
-              model: Meta-Llama3.1-8B-Instruct
+""",
-              quantization: null
+    )
-              torch_seed: null
+    shields: List[ShieldDef] = Field(
-              max_seq_len: 4096
+        description="""
-              max_batch_size: 1
+List of shield definitions to serve. This list may get extended by
+/shields/register API calls at runtime.
+""",
+    )
+    memory_banks: List[MemoryBankDef] = Field(
+        description="""
+List of memory bank definitions to serve. This list may get extended by
+/memory_banks/register API calls at runtime.
 """,
     )
 
 
-@json_schema_type
 class BuildConfig(BaseModel):
     version: str = LLAMA_STACK_BUILD_CONFIG_VERSION
     name: str

llama_stack/distribution/inspect.py

@@ -6,45 +6,58 @@
 
 from typing import Dict, List
 from llama_stack.apis.inspect import *  # noqa: F403
+from pydantic import BaseModel
 
-
-from llama_stack.distribution.distribution import get_provider_registry
 from llama_stack.distribution.server.endpoints import get_all_api_endpoints
 from llama_stack.providers.datatypes import *  # noqa: F403
+from llama_stack.distribution.datatypes import *  # noqa: F403
 
 
-def is_passthrough(spec: ProviderSpec) -> bool:
+class DistributionInspectConfig(BaseModel):
-    return isinstance(spec, RemoteProviderSpec) and spec.adapter is None
+    run_config: StackRunConfig
+
+
+async def get_provider_impl(config, deps):
+    impl = DistributionInspectImpl(config, deps)
+    await impl.initialize()
+    return impl
 
 
 class DistributionInspectImpl(Inspect):
-    def __init__(self):
+    def __init__(self, config, deps):
+        self.config = config
+        self.deps = deps
+
+    async def initialize(self) -> None:
         pass
 
     async def list_providers(self) -> Dict[str, List[ProviderInfo]]:
+        run_config = self.config.run_config
+
         ret = {}
-        all_providers = get_provider_registry()
+        for api, providers in run_config.providers.items():
-        for api, providers in all_providers.items():
+            ret[api] = [
-            ret[api.value] = [
                 ProviderInfo(
+                    provider_id=p.provider_id,
                     provider_type=p.provider_type,
-                    description="Passthrough" if is_passthrough(p) else "",
                 )
-                for p in providers.values()
+                for p in providers
             ]
 
         return ret
 
     async def list_routes(self) -> Dict[str, List[RouteInfo]]:
+        run_config = self.config.run_config
+
         ret = {}
         all_endpoints = get_all_api_endpoints()
-
         for api, endpoints in all_endpoints.items():
+            providers = run_config.providers.get(api.value, [])
             ret[api.value] = [
                 RouteInfo(
                     route=e.route,
                     method=e.method,
-                    providers=[],
+                    provider_types=[p.provider_type for p in providers],
                 )
                 for e in endpoints
             ]

llama_stack/distribution/resolver.py

@@ -13,138 +13,207 @@ from llama_stack.distribution.distribution import (
     builtin_automatically_routed_apis,
     get_provider_registry,
 )
-from llama_stack.distribution.inspect import DistributionInspectImpl
 from llama_stack.distribution.utils.dynamic import instantiate_class_type
 
 
+# TODO: make all this naming far less atrocious. Provider. ProviderSpec. ProviderWithSpec. WTF!
+class ProviderWithSpec(Provider):
+    spec: ProviderSpec
+
+
+# TODO: this code is not very straightforward to follow and needs one more round of refactoring
 async def resolve_impls_with_routing(run_config: StackRunConfig) -> Dict[Api, Any]:
     """
     Does two things:
     - flatmaps, sorts and resolves the providers in dependency order
     - for each API, produces either a (local, passthrough or router) implementation
     """
-    all_providers = get_provider_registry()
+    all_api_providers = get_provider_registry()
-    specs = {}
-    configs = {}
 
-    for api_str, config in run_config.api_providers.items():
+    routing_table_apis = set(
+        x.routing_table_api for x in builtin_automatically_routed_apis()
+    )
+    router_apis = set(x.router_api for x in builtin_automatically_routed_apis())
+
+    providers_with_specs = {}
+
+    for api_str, providers in run_config.providers.items():
         api = Api(api_str)
-
+        if api in routing_table_apis:
-        # TODO: check that these APIs are not in the routing table part of the config
-        providers = all_providers[api]
-
-        # skip checks for API whose provider config is specified in routing_table
-        if isinstance(config, PlaceholderProviderConfig):
-            continue
-
-        if config.provider_type not in providers:
             raise ValueError(
-                f"Provider `{config.provider_type}` is not available for API `{api}`"
+                f"Provider for `{api_str}` is automatically provided and cannot be overridden"
             )
-        specs[api] = providers[config.provider_type]
-        configs[api] = config
 
-    apis_to_serve = run_config.apis_to_serve or set(
+        specs = {}
-        list(specs.keys()) + list(run_config.routing_table.keys())
+        for provider in providers:
+            if provider.provider_type not in all_api_providers[api]:
+                raise ValueError(
+                    f"Provider `{provider.provider_type}` is not available for API `{api}`"
                 )
+
+            p = all_api_providers[api][provider.provider_type]
+            p.deps__ = [a.value for a in p.api_dependencies]
+            spec = ProviderWithSpec(
+                spec=p,
+                **(provider.dict()),
+            )
+            specs[provider.provider_id] = spec
+
+        key = api_str if api not in router_apis else f"inner-{api_str}"
+        providers_with_specs[key] = specs
+
+    apis_to_serve = run_config.apis or set(
+        list(providers_with_specs.keys())
+        + [x.value for x in routing_table_apis]
+        + [x.value for x in router_apis]
+    )
+
     for info in builtin_automatically_routed_apis():
-        source_api = info.routing_table_api
-
-        assert (
-            source_api not in specs
-        ), f"Routing table API {source_api} specified in wrong place?"
-        assert (
-            info.router_api not in specs
-        ), f"Auto-routed API {info.router_api} specified in wrong place?"
-
         if info.router_api.value not in apis_to_serve:
             continue
 
-        if info.router_api.value not in run_config.routing_table:
+        available_providers = providers_with_specs[f"inner-{info.router_api.value}"]
-            raise ValueError(f"Routing table for `{source_api.value}` is not provided?")
 
-        routing_table = run_config.routing_table[info.router_api.value]
-
-        providers = all_providers[info.router_api]
-
-        inner_specs = []
         inner_deps = []
-        for rt_entry in routing_table:
+        registry = getattr(run_config, info.routing_table_api.value)
-            if rt_entry.provider_type not in providers:
+        for entry in registry:
+            if entry.provider_id not in available_providers:
                 raise ValueError(
-                    f"Provider `{rt_entry.provider_type}` is not available for API `{api}`"
+                    f"Provider `{entry.provider_id}` not found. Available providers: {list(available_providers.keys())}"
                 )
-            inner_specs.append(providers[rt_entry.provider_type])
-            inner_deps.extend(providers[rt_entry.provider_type].api_dependencies)
 
-        specs[source_api] = RoutingTableProviderSpec(
+            provider = available_providers[entry.provider_id]
-            api=source_api,
+            inner_deps.extend(provider.spec.api_dependencies)
+
+        providers_with_specs[info.routing_table_api.value] = {
+            "__builtin__": ProviderWithSpec(
+                provider_id="__builtin__",
+                provider_type="__routing_table__",
+                config={},
+                spec=RoutingTableProviderSpec(
+                    api=info.routing_table_api,
+                    router_api=info.router_api,
+                    registry=registry,
                     module="llama_stack.distribution.routers",
                     api_dependencies=inner_deps,
-            inner_specs=inner_specs,
+                    deps__=(
+                        [x.value for x in inner_deps]
+                        + [f"inner-{info.router_api.value}"]
+                    ),
+                ),
             )
-        configs[source_api] = routing_table
+        }
 
-        specs[info.router_api] = AutoRoutedProviderSpec(
+        providers_with_specs[info.router_api.value] = {
+            "__builtin__": ProviderWithSpec(
+                provider_id="__builtin__",
+                provider_type="__autorouted__",
+                config={},
+                spec=AutoRoutedProviderSpec(
                     api=info.router_api,
                     module="llama_stack.distribution.routers",
-            routing_table_api=source_api,
+                    routing_table_api=info.routing_table_api,
-            api_dependencies=[source_api],
+                    api_dependencies=[info.routing_table_api],
+                    deps__=([info.routing_table_api.value]),
+                ),
             )
-        configs[info.router_api] = {}
+        }
 
-    sorted_specs = topological_sort(specs.values())
+    sorted_providers = topological_sort(
-    print(f"Resolved {len(sorted_specs)} providers in topological order")
+        {k: v.values() for k, v in providers_with_specs.items()}
-    for spec in sorted_specs:
+    )
-        print(f"  {spec.api}: {spec.provider_type}")
+    apis = [x[1].spec.api for x in sorted_providers]
+    sorted_providers.append(
+        (
+            "inspect",
+            ProviderWithSpec(
+                provider_id="__builtin__",
+                provider_type="__builtin__",
+                config={
+                    "run_config": run_config.dict(),
+                },
+                spec=InlineProviderSpec(
+                    api=Api.inspect,
+                    provider_type="__builtin__",
+                    config_class="llama_stack.distribution.inspect.DistributionInspectConfig",
+                    module="llama_stack.distribution.inspect",
+                    api_dependencies=apis,
+                    deps__=([x.value for x in apis]),
+                ),
+            ),
+        )
+    )
+
+    print(f"Resolved {len(sorted_providers)} providers in topological order")
+    for api_str, provider in sorted_providers:
+        print(f"  {api_str}: ({provider.provider_id}) {provider.spec.provider_type}")
     print("")
-    impls = {}
-    for spec in sorted_specs:
-        api = spec.api
-        deps = {api: impls[api] for api in spec.api_dependencies}
-        impl = await instantiate_provider(spec, deps, configs[api])
 
+    impls = {}
+    inner_impls_by_provider_id = {f"inner-{x.value}": {} for x in router_apis}
+    for api_str, provider in sorted_providers:
+        deps = {a: impls[a] for a in provider.spec.api_dependencies}
+
+        inner_impls = {}
+        if isinstance(provider.spec, RoutingTableProviderSpec):
+            inner_impls = inner_impls_by_provider_id[
+                f"inner-{provider.spec.router_api.value}"
+            ]
+
+        impl = await instantiate_provider(
+            provider,
+            deps,
+            inner_impls,
+        )
+        # TODO: ugh slightly redesign this shady looking code
+        if "inner-" in api_str:
+            inner_impls_by_provider_id[api_str][provider.provider_id] = impl
+        else:
+            api = Api(api_str)
             impls[api] = impl
 
-    impls[Api.inspect] = DistributionInspectImpl()
+    return impls
-    specs[Api.inspect] = InlineProviderSpec(
-        api=Api.inspect,
-        provider_type="__distribution_builtin__",
-        config_class="",
-        module="",
-    )
-
-    return impls, specs
 
 
-def topological_sort(providers: List[ProviderSpec]) -> List[ProviderSpec]:
+def topological_sort(
-    by_id = {x.api: x for x in providers}
+    providers_with_specs: Dict[str, List[ProviderWithSpec]],
+) -> List[ProviderWithSpec]:
+    def dfs(kv, visited: Set[str], stack: List[str]):
+        api_str, providers = kv
+        visited.add(api_str)
 
-    def dfs(a: ProviderSpec, visited: Set[Api], stack: List[Api]):
+        deps = []
-        visited.add(a.api)
+        for provider in providers:
+            for dep in provider.spec.deps__:
+                deps.append(dep)
 
-        for api in a.api_dependencies:
+        for dep in deps:
-            if api not in visited:
+            if dep not in visited:
-                dfs(by_id[api], visited, stack)
+                dfs((dep, providers_with_specs[dep]), visited, stack)
 
-        stack.append(a.api)
+        stack.append(api_str)
 
     visited = set()
     stack = []
 
-    for a in providers:
+    for api_str, providers in providers_with_specs.items():
-        if a.api not in visited:
+        if api_str not in visited:
-            dfs(a, visited, stack)
+            dfs((api_str, providers), visited, stack)
 
-    return [by_id[x] for x in stack]
+    flattened = []
+    for api_str in stack:
+        for provider in providers_with_specs[api_str]:
+            flattened.append((api_str, provider))
+    return flattened
 
 
 # returns a class implementing the protocol corresponding to the Api
 async def instantiate_provider(
-    provider_spec: ProviderSpec,
+    provider: ProviderWithSpec,
     deps: Dict[str, Any],
-    provider_config: Union[GenericProviderConfig, RoutingTable],
+    inner_impls: Dict[str, Any],
 ):
+    provider_spec = provider.spec
     module = importlib.import_module(provider_spec.module)
 
     args = []
@@ -154,9 +223,8 @@ async def instantiate_provider(
         else:
             method = "get_client_impl"
 
-        assert isinstance(provider_config, GenericProviderConfig)
         config_type = instantiate_class_type(provider_spec.config_class)
-        config = config_type(**provider_config.config)
+        config = config_type(**provider.config)
         args = [config, deps]
     elif isinstance(provider_spec, AutoRoutedProviderSpec):
         method = "get_auto_router_impl"
@@ -166,31 +234,18 @@ async def instantiate_provider(
     elif isinstance(provider_spec, RoutingTableProviderSpec):
         method = "get_routing_table_impl"
 
-        assert isinstance(provider_config, List)
-        routing_table = provider_config
-
-        inner_specs = {x.provider_type: x for x in provider_spec.inner_specs}
-        inner_impls = []
-        for routing_entry in routing_table:
-            impl = await instantiate_provider(
-                inner_specs[routing_entry.provider_type],
-                deps,
-                routing_entry,
-            )
-            inner_impls.append((routing_entry.routing_key, impl))
-
         config = None
-        args = [provider_spec.api, inner_impls, routing_table, deps]
+        args = [provider_spec.api, provider_spec.registry, inner_impls, deps]
     else:
         method = "get_provider_impl"
 
-        assert isinstance(provider_config, GenericProviderConfig)
         config_type = instantiate_class_type(provider_spec.config_class)
-        config = config_type(**provider_config.config)
+        config = config_type(**provider.config)
         args = [config, deps]
 
     fn = getattr(module, method)
     impl = await fn(*args)
+    impl.__provider_id__ = provider.provider_id
     impl.__provider_spec__ = provider_spec
     impl.__provider_config__ = config
     return impl

llama_stack/distribution/routers/__init__.py

@@ -4,23 +4,22 @@
 # This source code is licensed under the terms described in the LICENSE file in
 # the root directory of this source tree.
 
-from typing import Any, List, Tuple
+from typing import Any, List
 
 from llama_stack.distribution.datatypes import *  # noqa: F403
-
-
-async def get_routing_table_impl(
-    api: Api,
-    inner_impls: List[Tuple[str, Any]],
-    routing_table_config: Dict[str, List[RoutableProviderConfig]],
-    _deps,
-) -> Any:
 from .routing_tables import (
     MemoryBanksRoutingTable,
     ModelsRoutingTable,
     ShieldsRoutingTable,
 )
 
+
+async def get_routing_table_impl(
+    api: Api,
+    registry: List[RoutableObject],
+    impls_by_provider_id: Dict[str, RoutedProtocol],
+    _deps,
+) -> Any:
     api_to_tables = {
         "memory_banks": MemoryBanksRoutingTable,
         "models": ModelsRoutingTable,
@@ -29,7 +28,7 @@ async def get_routing_table_impl(
     if api.value not in api_to_tables:
         raise ValueError(f"API {api.value} not found in router map")
 
-    impl = api_to_tables[api.value](inner_impls, routing_table_config)
+    impl = api_to_tables[api.value](registry, impls_by_provider_id)
     await impl.initialize()
     return impl
 

llama_stack/distribution/routers/routers.py

@@ -14,14 +14,13 @@ from llama_stack.apis.safety import *  # noqa: F403
 
 
 class MemoryRouter(Memory):
-    """Routes to an provider based on the memory bank type"""
+    """Routes to an provider based on the memory bank identifier"""
 
     def __init__(
         self,
         routing_table: RoutingTable,
     ) -> None:
         self.routing_table = routing_table
-        self.bank_id_to_type = {}
 
     async def initialize(self) -> None:
         pass
@@ -29,32 +28,8 @@ class MemoryRouter(Memory):
     async def shutdown(self) -> None:
         pass
 
-    def get_provider_from_bank_id(self, bank_id: str) -> Any:
+    async def register_memory_bank(self, memory_bank: MemoryBankDef) -> None:
-        bank_type = self.bank_id_to_type.get(bank_id)
+        await self.routing_table.register_memory_bank(memory_bank)
-        if not bank_type:
-            raise ValueError(f"Could not find bank type for {bank_id}")
-
-        provider = self.routing_table.get_provider_impl(bank_type)
-        if not provider:
-            raise ValueError(f"Could not find provider for {bank_type}")
-        return provider
-
-    async def create_memory_bank(
-        self,
-        name: str,
-        config: MemoryBankConfig,
-        url: Optional[URL] = None,
-    ) -> MemoryBank:
-        bank_type = config.type
-        bank = await self.routing_table.get_provider_impl(bank_type).create_memory_bank(
-            name, config, url
-        )
-        self.bank_id_to_type[bank.bank_id] = bank_type
-        return bank
-
-    async def get_memory_bank(self, bank_id: str) -> Optional[MemoryBank]:
-        provider = self.get_provider_from_bank_id(bank_id)
-        return await provider.get_memory_bank(bank_id)
 
     async def insert_documents(
         self,
@@ -62,7 +37,7 @@ class MemoryRouter(Memory):
         documents: List[MemoryBankDocument],
         ttl_seconds: Optional[int] = None,
     ) -> None:
-        return await self.get_provider_from_bank_id(bank_id).insert_documents(
+        return await self.routing_table.get_provider_impl(bank_id).insert_documents(
             bank_id, documents, ttl_seconds
         )
 
@@ -72,7 +47,7 @@ class MemoryRouter(Memory):
         query: InterleavedTextMedia,
         params: Optional[Dict[str, Any]] = None,
     ) -> QueryDocumentsResponse:
-        return await self.get_provider_from_bank_id(bank_id).query_documents(
+        return await self.routing_table.get_provider_impl(bank_id).query_documents(
             bank_id, query, params
         )
 
@@ -92,7 +67,10 @@ class InferenceRouter(Inference):
     async def shutdown(self) -> None:
         pass
 
-    async def chat_completion(
+    async def register_model(self, model: ModelDef) -> None:
+        await self.routing_table.register_model(model)
+
+    def chat_completion(
         self,
         model: str,
         messages: List[Message],
@@ -113,27 +91,32 @@ class InferenceRouter(Inference):
             stream=stream,
             logprobs=logprobs,
         )
-        # TODO: we need to fix streaming response to align provider implementations with Protocol.
+        provider = self.routing_table.get_provider_impl(model)
-        async for chunk in self.routing_table.get_provider_impl(model).chat_completion(
+        if stream:
-            **params
+            return (chunk async for chunk in provider.chat_completion(**params))
-        ):
+        else:
-            yield chunk
+            return provider.chat_completion(**params)
 
-    async def completion(
+    def completion(
         self,
         model: str,
         content: InterleavedTextMedia,
         sampling_params: Optional[SamplingParams] = SamplingParams(),
         stream: Optional[bool] = False,
         logprobs: Optional[LogProbConfig] = None,
-    ) -> Union[CompletionResponse, CompletionResponseStreamChunk]:
+    ) -> AsyncGenerator:
-        return await self.routing_table.get_provider_impl(model).completion(
+        provider = self.routing_table.get_provider_impl(model)
+        params = dict(
             model=model,
             content=content,
             sampling_params=sampling_params,
             stream=stream,
             logprobs=logprobs,
         )
+        if stream:
+            return (chunk async for chunk in provider.completion(**params))
+        else:
+            return provider.completion(**params)
 
     async def embeddings(
         self,
@@ -159,6 +142,9 @@ class SafetyRouter(Safety):
     async def shutdown(self) -> None:
         pass
 
+    async def register_shield(self, shield: ShieldDef) -> None:
+        await self.routing_table.register_shield(shield)
+
     async def run_shield(
         self,
         shield_type: str,

llama_stack/distribution/routers/routing_tables.py

@@ -4,9 +4,8 @@
 # This source code is licensed under the terms described in the LICENSE file in
 # the root directory of this source tree.
 
-from typing import Any, List, Optional, Tuple
+from typing import Any, List, Optional
 
-from llama_models.sku_list import resolve_model
 from llama_models.llama3.api.datatypes import *  # noqa: F403
 
 from llama_stack.apis.models import *  # noqa: F403
@@ -16,129 +15,129 @@ from llama_stack.apis.memory_banks import *  # noqa: F403
 from llama_stack.distribution.datatypes import *  # noqa: F403
 
 
+def get_impl_api(p: Any) -> Api:
+    return p.__provider_spec__.api
+
+
+async def register_object_with_provider(obj: RoutableObject, p: Any) -> None:
+    api = get_impl_api(p)
+    if api == Api.inference:
+        await p.register_model(obj)
+    elif api == Api.safety:
+        await p.register_shield(obj)
+    elif api == Api.memory:
+        await p.register_memory_bank(obj)
+
+
+# TODO: this routing table maintains state in memory purely. We need to
+# add persistence to it when we add dynamic registration of objects.
 class CommonRoutingTableImpl(RoutingTable):
     def __init__(
         self,
-        inner_impls: List[Tuple[RoutingKey, Any]],
+        registry: List[RoutableObject],
-        routing_table_config: Dict[str, List[RoutableProviderConfig]],
+        impls_by_provider_id: Dict[str, RoutedProtocol],
     ) -> None:
-        self.unique_providers = []
+        for obj in registry:
-        self.providers = {}
+            if obj.provider_id not in impls_by_provider_id:
-        self.routing_keys = []
+                print(f"{impls_by_provider_id=}")
+                raise ValueError(
+                    f"Provider `{obj.provider_id}` pointed by `{obj.identifier}` not found"
+                )
 
-        for key, impl in inner_impls:
+        self.impls_by_provider_id = impls_by_provider_id
-            keys = key if isinstance(key, list) else [key]
+        self.registry = registry
-            self.unique_providers.append((keys, impl))
 
-            for k in keys:
+        for p in self.impls_by_provider_id.values():
-                if k in self.providers:
+            api = get_impl_api(p)
-                    raise ValueError(f"Duplicate routing key {k}")
+            if api == Api.inference:
-                self.providers[k] = impl
+                p.model_store = self
-                self.routing_keys.append(k)
+            elif api == Api.safety:
+                p.shield_store = self
+            elif api == Api.memory:
+                p.memory_bank_store = self
 
-        self.routing_table_config = routing_table_config
+        self.routing_key_to_object = {}
+        for obj in self.registry:
+            self.routing_key_to_object[obj.identifier] = obj
 
     async def initialize(self) -> None:
-        for keys, p in self.unique_providers:
+        for obj in self.registry:
-            spec = p.__provider_spec__
+            p = self.impls_by_provider_id[obj.provider_id]
-            if isinstance(spec, RemoteProviderSpec) and spec.adapter is None:
+            await register_object_with_provider(obj, p)
-                continue
-
-            await p.validate_routing_keys(keys)
 
     async def shutdown(self) -> None:
-        for _, p in self.unique_providers:
+        for p in self.impls_by_provider_id.values():
             await p.shutdown()
 
     def get_provider_impl(self, routing_key: str) -> Any:
-        if routing_key not in self.providers:
+        if routing_key not in self.routing_key_to_object:
-            raise ValueError(f"Could not find provider for {routing_key}")
+            raise ValueError(f"`{routing_key}` not registered")
-        return self.providers[routing_key]
 
-    def get_routing_keys(self) -> List[str]:
+        obj = self.routing_key_to_object[routing_key]
-        return self.routing_keys
+        if obj.provider_id not in self.impls_by_provider_id:
+            raise ValueError(f"Provider `{obj.provider_id}` not found")
 
-    def get_provider_config(self, routing_key: str) -> Optional[GenericProviderConfig]:
+        return self.impls_by_provider_id[obj.provider_id]
-        for entry in self.routing_table_config:
+
-            if entry.routing_key == routing_key:
+    def get_object_by_identifier(self, identifier: str) -> Optional[RoutableObject]:
-                return entry
+        for obj in self.registry:
+            if obj.identifier == identifier:
+                return obj
         return None
 
+    async def register_object(self, obj: RoutableObject):
+        if obj.identifier in self.routing_key_to_object:
+            print(f"`{obj.identifier}` is already registered")
+            return
+
+        if not obj.provider_id:
+            provider_ids = list(self.impls_by_provider_id.keys())
+            if not provider_ids:
+                raise ValueError("No providers found")
+
+            print(f"Picking provider `{provider_ids[0]}` for {obj.identifier}")
+            obj.provider_id = provider_ids[0]
+        else:
+            if obj.provider_id not in self.impls_by_provider_id:
+                raise ValueError(f"Provider `{obj.provider_id}` not found")
+
+        p = self.impls_by_provider_id[obj.provider_id]
+        await register_object_with_provider(obj, p)
+
+        self.routing_key_to_object[obj.identifier] = obj
+        self.registry.append(obj)
+
+        # TODO: persist this to a store
+
 
 class ModelsRoutingTable(CommonRoutingTableImpl, Models):
+    async def list_models(self) -> List[ModelDef]:
+        return self.registry
 
-    async def list_models(self) -> List[ModelServingSpec]:
+    async def get_model(self, identifier: str) -> Optional[ModelDef]:
-        specs = []
+        return self.get_object_by_identifier(identifier)
-        for entry in self.routing_table_config:
-            model_id = entry.routing_key
-            specs.append(
-                ModelServingSpec(
-                    llama_model=resolve_model(model_id),
-                    provider_config=entry,
-                )
-            )
-        return specs
 
-    async def get_model(self, core_model_id: str) -> Optional[ModelServingSpec]:
+    async def register_model(self, model: ModelDef) -> None:
-        for entry in self.routing_table_config:
+        await self.register_object(model)
-            if entry.routing_key == core_model_id:
-                return ModelServingSpec(
-                    llama_model=resolve_model(core_model_id),
-                    provider_config=entry,
-                )
-        return None
 
 
 class ShieldsRoutingTable(CommonRoutingTableImpl, Shields):
+    async def list_shields(self) -> List[ShieldDef]:
+        return self.registry
 
-    async def list_shields(self) -> List[ShieldSpec]:
+    async def get_shield(self, shield_type: str) -> Optional[ShieldDef]:
-        specs = []
+        return self.get_object_by_identifier(shield_type)
-        for entry in self.routing_table_config:
-            if isinstance(entry.routing_key, list):
-                for k in entry.routing_key:
-                    specs.append(
-                        ShieldSpec(
-                            shield_type=k,
-                            provider_config=entry,
-                        )
-                    )
-            else:
-                specs.append(
-                    ShieldSpec(
-                        shield_type=entry.routing_key,
-                        provider_config=entry,
-                    )
-                )
-        return specs
 
-    async def get_shield(self, shield_type: str) -> Optional[ShieldSpec]:
+    async def register_shield(self, shield: ShieldDef) -> None:
-        for entry in self.routing_table_config:
+        await self.register_object(shield)
-            if entry.routing_key == shield_type:
-                return ShieldSpec(
-                    shield_type=entry.routing_key,
-                    provider_config=entry,
-                )
-        return None
 
 
 class MemoryBanksRoutingTable(CommonRoutingTableImpl, MemoryBanks):
+    async def list_memory_banks(self) -> List[MemoryBankDef]:
+        return self.registry
 
-    async def list_available_memory_banks(self) -> List[MemoryBankSpec]:
+    async def get_memory_bank(self, identifier: str) -> Optional[MemoryBankDef]:
-        specs = []
+        return self.get_object_by_identifier(identifier)
-        for entry in self.routing_table_config:
-            specs.append(
-                MemoryBankSpec(
-                    bank_type=entry.routing_key,
-                    provider_config=entry,
-                )
-            )
-        return specs
 
-    async def get_serving_memory_bank(self, bank_type: str) -> Optional[MemoryBankSpec]:
+    async def register_memory_bank(self, bank: MemoryBankDef) -> None:
-        for entry in self.routing_table_config:
+        await self.register_object(bank)
-            if entry.routing_key == bank_type:
-                return MemoryBankSpec(
-                    bank_type=entry.routing_key,
-                    provider_config=entry,
-                )
-        return None

llama_stack/distribution/server/server.py

@@ -5,18 +5,15 @@
 # the root directory of this source tree.
 
 import asyncio
+import functools
 import inspect
 import json
 import signal
 import traceback
 
-from collections.abc import (
-    AsyncGenerator as AsyncGeneratorABC,
-    AsyncIterator as AsyncIteratorABC,
-)
 from contextlib import asynccontextmanager
 from ssl import SSLError
-from typing import Any, AsyncGenerator, AsyncIterator, Dict, get_type_hints, Optional
+from typing import Any, Dict, Optional
 
 import fire
 import httpx
@@ -43,20 +40,6 @@ from llama_stack.distribution.resolver import resolve_impls_with_routing
 from .endpoints import get_all_api_endpoints
 
 
-def is_async_iterator_type(typ):
-    if hasattr(typ, "__origin__"):
-        origin = typ.__origin__
-        if isinstance(origin, type):
-            return issubclass(
-                origin,
-                (AsyncIterator, AsyncGenerator, AsyncIteratorABC, AsyncGeneratorABC),
-            )
-        return False
-    return isinstance(
-        typ, (AsyncIterator, AsyncGenerator, AsyncIteratorABC, AsyncGeneratorABC)
-    )
-
-
 def create_sse_event(data: Any) -> str:
     if isinstance(data, BaseModel):
         data = data.json()
@@ -169,11 +152,20 @@ async def passthrough(
         await end_trace(SpanStatus.OK if not erred else SpanStatus.ERROR)
 
 
-def handle_sigint(*args, **kwargs):
+def handle_sigint(app, *args, **kwargs):
     print("SIGINT or CTRL-C detected. Exiting gracefully...")
+
+    async def run_shutdown():
+        for impl in app.__llama_stack_impls__.values():
+            print(f"Shutting down {impl}")
+            await impl.shutdown()
+
+    asyncio.run(run_shutdown())
+
     loop = asyncio.get_event_loop()
     for task in asyncio.all_tasks(loop):
         task.cancel()
+
     loop.stop()
 
 
@@ -181,7 +173,10 @@ def handle_sigint(*args, **kwargs):
 async def lifespan(app: FastAPI):
     print("Starting up")
     yield
+
     print("Shutting down")
+    for impl in app.__llama_stack_impls__.values():
+        await impl.shutdown()
 
 
 def create_dynamic_passthrough(
@@ -193,22 +188,16 @@ def create_dynamic_passthrough(
     return endpoint
 
 
-def create_dynamic_typed_route(func: Any, method: str):
+def is_streaming_request(func_name: str, request: Request, **kwargs):
-    hints = get_type_hints(func)
+    # TODO: pass the api method and punt it to the Protocol definition directly
-    response_model = hints.get("return")
+    return kwargs.get("stream", False)
 
-    # NOTE: I think it is better to just add a method within each Api
-    # "Protocol" / adapter-impl to tell what sort of a response this request
-    # is going to produce. /chat_completion can produce a streaming or
-    # non-streaming response depending on if request.stream is True / False.
-    is_streaming = is_async_iterator_type(response_model)
 
-    if is_streaming:
+async def maybe_await(value):
+    if inspect.iscoroutine(value):
+        return await value
+    return value
 
-        async def endpoint(request: Request, **kwargs):
-            await start_trace(func.__name__)
-
-            set_request_provider_data(request.headers)
 
 async def sse_generator(event_gen):
     try:
@@ -230,23 +219,23 @@ def create_dynamic_typed_route(func: Any, method: str):
     finally:
         await end_trace()
 
-            return StreamingResponse(
-                sse_generator(func(**kwargs)), media_type="text/event-stream"
-            )
 
-    else:
+def create_dynamic_typed_route(func: Any, method: str):
 
     async def endpoint(request: Request, **kwargs):
         await start_trace(func.__name__)
 
         set_request_provider_data(request.headers)
 
+        is_streaming = is_streaming_request(func.__name__, request, **kwargs)
         try:
-                return (
+            if is_streaming:
-                    await func(**kwargs)
+                return StreamingResponse(
-                    if asyncio.iscoroutinefunction(func)
+                    sse_generator(func(**kwargs)), media_type="text/event-stream"
-                    else func(**kwargs)
                 )
+            else:
+                value = func(**kwargs)
+                return await maybe_await(value)
         except Exception as e:
             traceback.print_exception(e)
             raise translate_exception(e) from e
@@ -285,29 +274,25 @@ def main(
 
     app = FastAPI()
 
-    impls, specs = asyncio.run(resolve_impls_with_routing(config))
+    impls = asyncio.run(resolve_impls_with_routing(config))
     if Api.telemetry in impls:
         setup_logger(impls[Api.telemetry])
 
     all_endpoints = get_all_api_endpoints()
 
-    if config.apis_to_serve:
+    if config.apis:
-        apis_to_serve = set(config.apis_to_serve)
+        apis_to_serve = set(config.apis)
     else:
         apis_to_serve = set(impls.keys())
 
-    apis_to_serve.add(Api.inspect)
+    apis_to_serve.add("inspect")
     for api_str in apis_to_serve:
         api = Api(api_str)
 
         endpoints = all_endpoints[api]
         impl = impls[api]
 
-        provider_spec = specs[api]
+        if is_passthrough(impl.__provider_spec__):
-        if (
-            isinstance(provider_spec, RemoteProviderSpec)
-            and provider_spec.adapter is None
-        ):
             for endpoint in endpoints:
                 url = impl.__provider_config__.url.rstrip("/") + endpoint.route
                 getattr(app, endpoint.method)(endpoint.route)(
@@ -337,7 +322,9 @@ def main(
     print("")
     app.exception_handler(RequestValidationError)(global_exception_handler)
     app.exception_handler(Exception)(global_exception_handler)
-    signal.signal(signal.SIGINT, handle_sigint)
+    signal.signal(signal.SIGINT, functools.partial(handle_sigint, app))
+
+    app.__llama_stack_impls__ = impls
 
     import uvicorn
 

llama_stack/distribution/templates/docker/llamastack-local-cpu/run.yaml

@@ -1,8 +1,9 @@
-built_at: '2024-09-30T09:04:30.533391'
+version: '2'
+built_at: '2024-10-08T17:42:07.505267'
 image_name: local-cpu
 docker_image: local-cpu
 conda_env: null
-apis_to_serve:
+apis:
 - agents
 - inference
 - models
@@ -10,40 +11,48 @@ apis_to_serve:
 - safety
 - shields
 - memory_banks
-api_providers:
+providers:
   inference:
-    providers:
+  - provider_id: remote::ollama
-    - remote::ollama
+    provider_type: remote::ollama
+    config:
+      host: localhost
+      port: 6000
   safety:
-    providers:
+  - provider_id: meta-reference
-    - meta-reference
+    provider_type: meta-reference
+    config:
+      llama_guard_shield: null
+      prompt_guard_shield: null
+  memory:
+  - provider_id: meta-reference
+    provider_type: meta-reference
+    config: {}
   agents:
+  - provider_id: meta-reference
     provider_type: meta-reference
     config:
       persistence_store:
         namespace: null
         type: sqlite
-        db_path: /home/xiyan/.llama/runtime/kvstore.db
+        db_path: ~/.llama/runtime/kvstore.db
-  memory:
-    providers:
-    - meta-reference
   telemetry:
+  - provider_id: meta-reference
     provider_type: meta-reference
     config: {}
-routing_table:
+models:
-  inference:
+- identifier: Llama3.1-8B-Instruct
-  - provider_type: remote::ollama
+  llama_model: Llama3.1-8B-Instruct
-    config:
+  provider_id: remote::ollama
-      host: localhost
+shields:
-      port: 6000
+- identifier: llama_guard
-    routing_key: Meta-Llama3.1-8B-Instruct
+  type: llama_guard
-  safety:
+  provider_id: meta-reference
-  - provider_type: meta-reference
+  params: {}
-    config:
+memory_banks:
-      llama_guard_shield: null
+- identifier: vector
-      prompt_guard_shield: null
+  provider_id: meta-reference
-    routing_key: ["llama_guard", "code_scanner_guard", "injection_shield", "jailbreak_shield"]
+  type: vector
-  memory:
+  embedding_model: all-MiniLM-L6-v2
-  - provider_type: meta-reference
+  chunk_size_in_tokens: 512
-    config: {}
+  overlap_size_in_tokens: null
-    routing_key: vector

llama_stack/distribution/templates/docker/llamastack-local-gpu/run.yaml

@@ -1,8 +1,9 @@
-built_at: '2024-09-30T09:00:56.693751'
+version: '2'
+built_at: '2024-10-08T17:42:33.690666'
 image_name: local-gpu
 docker_image: local-gpu
 conda_env: null
-apis_to_serve:
+apis:
 - memory
 - inference
 - agents
@@ -10,43 +11,51 @@ apis_to_serve:
 - safety
 - models
 - memory_banks
-api_providers:
+providers:
   inference:
-    providers:
+  - provider_id: meta-reference
-    - meta-reference
-  safety:
-    providers:
-    - meta-reference
-  agents:
     provider_type: meta-reference
-    config:
-      persistence_store:
-        namespace: null
-        type: sqlite
-        db_path: /home/xiyan/.llama/runtime/kvstore.db
-  memory:
-    providers:
-    - meta-reference
-  telemetry:
-    provider_type: meta-reference
-    config: {}
-routing_table:
-  inference:
-  - provider_type: meta-reference
     config:
       model: Llama3.1-8B-Instruct
       quantization: null
       torch_seed: null
       max_seq_len: 4096
       max_batch_size: 1
-    routing_key: Llama3.1-8B-Instruct
   safety:
-  - provider_type: meta-reference
+  - provider_id: meta-reference
+    provider_type: meta-reference
     config:
       llama_guard_shield: null
       prompt_guard_shield: null
-    routing_key: ["llama_guard", "code_scanner_guard", "injection_shield", "jailbreak_shield"]
   memory:
-  - provider_type: meta-reference
+  - provider_id: meta-reference
+    provider_type: meta-reference
     config: {}
-    routing_key: vector
+  agents:
+  - provider_id: meta-reference
+    provider_type: meta-reference
+    config:
+      persistence_store:
+        namespace: null
+        type: sqlite
+        db_path: ~/.llama/runtime/kvstore.db
+  telemetry:
+  - provider_id: meta-reference
+    provider_type: meta-reference
+    config: {}
+models:
+- identifier: Llama3.1-8B-Instruct
+  llama_model: Llama3.1-8B-Instruct
+  provider_id: meta-reference
+shields:
+- identifier: llama_guard
+  type: llama_guard
+  provider_id: meta-reference
+  params: {}
+memory_banks:
+- identifier: vector
+  provider_id: meta-reference
+  type: vector
+  embedding_model: all-MiniLM-L6-v2
+  chunk_size_in_tokens: 512
+  overlap_size_in_tokens: null

llama_stack/distribution/templates/local-databricks-build.yaml

@@ -0,0 +1,10 @@
+name: local-databricks
+distribution_spec:
+  description: Use Databricks for running LLM inference
+  providers:
+    inference: remote::databricks
+    memory: meta-reference
+    safety: meta-reference
+    agents: meta-reference
+    telemetry: meta-reference
+image_type: conda

llama_stack/distribution/templates/local-vllm-build.yaml

@@ -0,0 +1,10 @@
+name: local-vllm
+distribution_spec:
+  description: Like local, but use vLLM for running LLM inference
+  providers:
+    inference: vllm
+    memory: meta-reference
+    safety: meta-reference
+    agents: meta-reference
+    telemetry: meta-reference
+image_type: conda

llama_stack/providers/adapters/inference/bedrock/bedrock.py

@@ -13,7 +13,7 @@ from botocore.config import Config
 from llama_models.llama3.api.chat_format import ChatFormat
 from llama_models.llama3.api.tokenizer import Tokenizer
 
-from llama_stack.providers.utils.inference.routable import RoutableProviderForModels
+from llama_stack.providers.utils.inference.model_registry import ModelRegistryHelper
 
 from llama_stack.apis.inference import *  # noqa: F403
 from llama_stack.providers.adapters.inference.bedrock.config import BedrockConfig
@@ -26,7 +26,7 @@ BEDROCK_SUPPORTED_MODELS = {
 }
 
 
-class BedrockInferenceAdapter(Inference, RoutableProviderForModels):
+class BedrockInferenceAdapter(ModelRegistryHelper, Inference):
 
     @staticmethod
     def _create_bedrock_client(config: BedrockConfig) -> BaseClient:
@@ -69,7 +69,7 @@ class BedrockInferenceAdapter(Inference, RoutableProviderForModels):
         return boto3_session.client("bedrock-runtime", config=boto3_config)
 
     def __init__(self, config: BedrockConfig) -> None:
-        RoutableProviderForModels.__init__(
+        ModelRegistryHelper.__init__(
             self, stack_to_provider_models_map=BEDROCK_SUPPORTED_MODELS
         )
         self._config = config

llama_stack/providers/adapters/inference/databricks/__init__.py

@@ -0,0 +1,16 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.
+
+from .config import DatabricksImplConfig
+from .databricks import DatabricksInferenceAdapter
+
+async def get_adapter_impl(config: DatabricksImplConfig, _deps):
+    assert isinstance(
+        config, DatabricksImplConfig
+    ), f"Unexpected config type: {type(config)}"
+    impl = DatabricksInferenceAdapter(config)
+    await impl.initialize()
+    return impl

llama_stack/providers/adapters/inference/databricks/config.py

@@ -0,0 +1,22 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.
+
+from typing import Optional
+
+from llama_models.schema_utils import json_schema_type
+from pydantic import BaseModel, Field
+
+
+@json_schema_type
+class DatabricksImplConfig(BaseModel):
+    url: str = Field(
+        default=None,
+        description="The URL for the Databricks model serving endpoint",
+    )
+    api_token: str = Field(
+        default=None,
+        description="The Databricks API token",
+    )

llama_stack/providers/adapters/inference/databricks/databricks.py

@@ -0,0 +1,111 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.
+
+from typing import AsyncGenerator
+
+from llama_models.llama3.api.chat_format import ChatFormat
+
+from llama_models.llama3.api.datatypes import Message
+from llama_models.llama3.api.tokenizer import Tokenizer
+
+from openai import OpenAI
+
+from llama_stack.apis.inference import *  # noqa: F403
+
+from llama_stack.providers.utils.inference.model_registry import ModelRegistryHelper
+from llama_stack.providers.utils.inference.openai_compat import (
+    get_sampling_options,
+    process_chat_completion_response,
+    process_chat_completion_stream_response,
+)
+from llama_stack.providers.utils.inference.prompt_adapter import (
+    chat_completion_request_to_prompt,
+)
+
+from .config import DatabricksImplConfig
+
+
+DATABRICKS_SUPPORTED_MODELS = {
+    "Llama3.1-70B-Instruct": "databricks-meta-llama-3-1-70b-instruct",
+    "Llama3.1-405B-Instruct": "databricks-meta-llama-3-1-405b-instruct",
+}
+
+
+class DatabricksInferenceAdapter(ModelRegistryHelper, Inference):
+    def __init__(self, config: DatabricksImplConfig) -> None:
+        ModelRegistryHelper.__init__(
+            self, stack_to_provider_models_map=DATABRICKS_SUPPORTED_MODELS
+        )
+        self.config = config
+        self.formatter = ChatFormat(Tokenizer.get_instance())
+
+    async def initialize(self) -> None:
+        return
+
+    async def shutdown(self) -> None:
+        pass
+
+    def completion(self, request: CompletionRequest) -> AsyncGenerator:
+        raise NotImplementedError()
+
+    def chat_completion(
+        self,
+        model: str,
+        messages: List[Message],
+        sampling_params: Optional[SamplingParams] = SamplingParams(),
+        tools: Optional[List[ToolDefinition]] = None,
+        tool_choice: Optional[ToolChoice] = ToolChoice.auto,
+        tool_prompt_format: Optional[ToolPromptFormat] = ToolPromptFormat.json,
+        stream: Optional[bool] = False,
+        logprobs: Optional[LogProbConfig] = None,
+    ) -> AsyncGenerator:
+        request = ChatCompletionRequest(
+            model=model,
+            messages=messages,
+            sampling_params=sampling_params,
+            tools=tools or [],
+            tool_choice=tool_choice,
+            tool_prompt_format=tool_prompt_format,
+            stream=stream,
+            logprobs=logprobs,
+        )
+
+        client = OpenAI(base_url=self.config.url, api_key=self.config.api_token)
+        if stream:
+            return self._stream_chat_completion(request, client)
+        else:
+            return self._nonstream_chat_completion(request, client)
+
+    async def _nonstream_chat_completion(
+        self, request: ChatCompletionRequest, client: OpenAI
+    ) -> ChatCompletionResponse:
+        params = self._get_params(request)
+        r = client.completions.create(**params)
+        return process_chat_completion_response(request, r, self.formatter)
+
+    async def _stream_chat_completion(
+        self, request: ChatCompletionRequest, client: OpenAI
+    ) -> AsyncGenerator:
+        params = self._get_params(request)
+
+        async def _to_async_generator():
+            s = client.completions.create(**params)
+            for chunk in s:
+                yield chunk
+
+        stream = _to_async_generator()
+        async for chunk in process_chat_completion_stream_response(
+            request, stream, self.formatter
+        ):
+            yield chunk
+
+    def _get_params(self, request: ChatCompletionRequest) -> dict:
+        return {
+            "model": self.map_to_provider_model(request.model),
+            "prompt": chat_completion_request_to_prompt(request, self.formatter),
+            "stream": request.stream,
+            **get_sampling_options(request),
+        }

llama_stack/providers/adapters/inference/fireworks/fireworks.py

@@ -10,14 +10,19 @@ from fireworks.client import Fireworks
 
 from llama_models.llama3.api.chat_format import ChatFormat
 
-from llama_models.llama3.api.datatypes import Message, StopReason
+from llama_models.llama3.api.datatypes import Message
 from llama_models.llama3.api.tokenizer import Tokenizer
 
-from llama_stack.providers.utils.inference.routable import RoutableProviderForModels
-
 from llama_stack.apis.inference import *  # noqa: F403
-from llama_stack.providers.utils.inference.augment_messages import (
+
-    augment_messages_for_tools,
+from llama_stack.providers.utils.inference.model_registry import ModelRegistryHelper
+from llama_stack.providers.utils.inference.openai_compat import (
+    get_sampling_options,
+    process_chat_completion_response,
+    process_chat_completion_stream_response,
+)
+from llama_stack.providers.utils.inference.prompt_adapter import (
+    chat_completion_request_to_prompt,
 )
 
 from .config import FireworksImplConfig
@@ -27,21 +32,18 @@ FIREWORKS_SUPPORTED_MODELS = {
     "Llama3.1-8B-Instruct": "fireworks/llama-v3p1-8b-instruct",
     "Llama3.1-70B-Instruct": "fireworks/llama-v3p1-70b-instruct",
     "Llama3.1-405B-Instruct": "fireworks/llama-v3p1-405b-instruct",
+    "Llama3.2-1B-Instruct": "fireworks/llama-v3p2-1b-instruct",
+    "Llama3.2-3B-Instruct": "fireworks/llama-v3p2-3b-instruct",
 }
 
 
-class FireworksInferenceAdapter(Inference, RoutableProviderForModels):
+class FireworksInferenceAdapter(ModelRegistryHelper, Inference):
     def __init__(self, config: FireworksImplConfig) -> None:
-        RoutableProviderForModels.__init__(
+        ModelRegistryHelper.__init__(
             self, stack_to_provider_models_map=FIREWORKS_SUPPORTED_MODELS
         )
         self.config = config
-        tokenizer = Tokenizer.get_instance()
+        self.formatter = ChatFormat(Tokenizer.get_instance())
-        self.formatter = ChatFormat(tokenizer)
-
-    @property
-    def client(self) -> Fireworks:
-        return Fireworks(api_key=self.config.api_key)
 
     async def initialize(self) -> None:
         return
@@ -49,7 +51,7 @@ class FireworksInferenceAdapter(Inference, RoutableProviderForModels):
     async def shutdown(self) -> None:
         pass
 
-    async def completion(
+    def completion(
         self,
         model: str,
         content: InterleavedTextMedia,
@@ -59,27 +61,7 @@ class FireworksInferenceAdapter(Inference, RoutableProviderForModels):
     ) -> AsyncGenerator:
         raise NotImplementedError()
 
-    def _messages_to_fireworks_messages(self, messages: list[Message]) -> list:
+    def chat_completion(
-        fireworks_messages = []
-        for message in messages:
-            if message.role == "ipython":
-                role = "tool"
-            else:
-                role = message.role
-            fireworks_messages.append({"role": role, "content": message.content})
-
-        return fireworks_messages
-
-    def get_fireworks_chat_options(self, request: ChatCompletionRequest) -> dict:
-        options = {}
-        if request.sampling_params is not None:
-            for attr in {"temperature", "top_p", "top_k", "max_tokens"}:
-                if getattr(request.sampling_params, attr):
-                    options[attr] = getattr(request.sampling_params, attr)
-
-        return options
-
-    async def chat_completion(
         self,
         model: str,
         messages: List[Message],
@@ -101,147 +83,41 @@ class FireworksInferenceAdapter(Inference, RoutableProviderForModels):
             logprobs=logprobs,
         )
 
-        messages = augment_messages_for_tools(request)
+        client = Fireworks(api_key=self.config.api_key)
-
+        if stream:
-        # accumulate sampling params and other options to pass to fireworks
+            return self._stream_chat_completion(request, client)
-        options = self.get_fireworks_chat_options(request)
-        fireworks_model = self.map_to_provider_model(request.model)
-
-        if not request.stream:
-            r = await self.client.chat.completions.acreate(
-                model=fireworks_model,
-                messages=self._messages_to_fireworks_messages(messages),
-                stream=False,
-                **options,
-            )
-            stop_reason = None
-            if r.choices[0].finish_reason:
-                if r.choices[0].finish_reason == "stop":
-                    stop_reason = StopReason.end_of_turn
-                elif r.choices[0].finish_reason == "length":
-                    stop_reason = StopReason.out_of_tokens
-
-            completion_message = self.formatter.decode_assistant_message_from_content(
-                r.choices[0].message.content, stop_reason
-            )
-
-            yield ChatCompletionResponse(
-                completion_message=completion_message,
-                logprobs=None,
-            )
         else:
-            yield ChatCompletionResponseStreamChunk(
+            return self._nonstream_chat_completion(request, client)
-                event=ChatCompletionResponseEvent(
-                    event_type=ChatCompletionResponseEventType.start,
-                    delta="",
-                )
-            )
 
-            buffer = ""
+    async def _nonstream_chat_completion(
-            ipython = False
+        self, request: ChatCompletionRequest, client: Fireworks
-            stop_reason = None
+    ) -> ChatCompletionResponse:
+        params = self._get_params(request)
+        r = await client.completion.acreate(**params)
+        return process_chat_completion_response(request, r, self.formatter)
 
-            async for chunk in self.client.chat.completions.acreate(
+    async def _stream_chat_completion(
-                model=fireworks_model,
+        self, request: ChatCompletionRequest, client: Fireworks
-                messages=self._messages_to_fireworks_messages(messages),
+    ) -> AsyncGenerator:
-                stream=True,
+        params = self._get_params(request)
+
+        stream = client.completion.acreate(**params)
+        async for chunk in process_chat_completion_stream_response(
+            request, stream, self.formatter
+        ):
+            yield chunk
+
+    def _get_params(self, request: ChatCompletionRequest) -> dict:
+        prompt = chat_completion_request_to_prompt(request, self.formatter)
+        # Fireworks always prepends with BOS
+        if prompt.startswith("<|begin_of_text|>"):
+            prompt = prompt[len("<|begin_of_text|>") :]
+
+        options = get_sampling_options(request)
+        options.setdefault("max_tokens", 512)
+        return {
+            "model": self.map_to_provider_model(request.model),
+            "prompt": prompt,
+            "stream": request.stream,
             **options,
-            ):
+        }
-                if chunk.choices[0].finish_reason:
-                    if stop_reason is None and chunk.choices[0].finish_reason == "stop":
-                        stop_reason = StopReason.end_of_turn
-                    elif (
-                        stop_reason is None
-                        and chunk.choices[0].finish_reason == "length"
-                    ):
-                        stop_reason = StopReason.out_of_tokens
-                    break
-
-                text = chunk.choices[0].delta.content
-                if text is None:
-                    continue
-
-                # check if its a tool call ( aka starts with <|python_tag|> )
-                if not ipython and text.startswith("<|python_tag|>"):
-                    ipython = True
-                    yield ChatCompletionResponseStreamChunk(
-                        event=ChatCompletionResponseEvent(
-                            event_type=ChatCompletionResponseEventType.progress,
-                            delta=ToolCallDelta(
-                                content="",
-                                parse_status=ToolCallParseStatus.started,
-                            ),
-                        )
-                    )
-                    buffer += text
-                    continue
-
-                if ipython:
-                    if text == "<|eot_id|>":
-                        stop_reason = StopReason.end_of_turn
-                        text = ""
-                        continue
-                    elif text == "<|eom_id|>":
-                        stop_reason = StopReason.end_of_message
-                        text = ""
-                        continue
-
-                    buffer += text
-                    delta = ToolCallDelta(
-                        content=text,
-                        parse_status=ToolCallParseStatus.in_progress,
-                    )
-
-                    yield ChatCompletionResponseStreamChunk(
-                        event=ChatCompletionResponseEvent(
-                            event_type=ChatCompletionResponseEventType.progress,
-                            delta=delta,
-                            stop_reason=stop_reason,
-                        )
-                    )
-                else:
-                    buffer += text
-                    yield ChatCompletionResponseStreamChunk(
-                        event=ChatCompletionResponseEvent(
-                            event_type=ChatCompletionResponseEventType.progress,
-                            delta=text,
-                            stop_reason=stop_reason,
-                        )
-                    )
-
-            # parse tool calls and report errors
-            message = self.formatter.decode_assistant_message_from_content(
-                buffer, stop_reason
-            )
-            parsed_tool_calls = len(message.tool_calls) > 0
-            if ipython and not parsed_tool_calls:
-                yield ChatCompletionResponseStreamChunk(
-                    event=ChatCompletionResponseEvent(
-                        event_type=ChatCompletionResponseEventType.progress,
-                        delta=ToolCallDelta(
-                            content="",
-                            parse_status=ToolCallParseStatus.failure,
-                        ),
-                        stop_reason=stop_reason,
-                    )
-                )
-
-            for tool_call in message.tool_calls:
-                yield ChatCompletionResponseStreamChunk(
-                    event=ChatCompletionResponseEvent(
-                        event_type=ChatCompletionResponseEventType.progress,
-                        delta=ToolCallDelta(
-                            content=tool_call,
-                            parse_status=ToolCallParseStatus.success,
-                        ),
-                        stop_reason=stop_reason,
-                    )
-                )
-
-            yield ChatCompletionResponseStreamChunk(
-                event=ChatCompletionResponseEvent(
-                    event_type=ChatCompletionResponseEventType.complete,
-                    delta="",
-                    stop_reason=stop_reason,
-                )
-            )

llama_stack/providers/adapters/inference/ollama/__init__.py

@@ -7,6 +7,10 @@
 from llama_stack.distribution.datatypes import RemoteProviderConfig
 
 
+class OllamaImplConfig(RemoteProviderConfig):
+    port: int = 11434
+
+
 async def get_adapter_impl(config: RemoteProviderConfig, _deps):
     from .ollama import OllamaInferenceAdapter
 

llama_stack/providers/adapters/inference/ollama/ollama.py

@@ -9,34 +9,36 @@ from typing import AsyncGenerator
 import httpx
 
 from llama_models.llama3.api.chat_format import ChatFormat
-from llama_models.llama3.api.datatypes import Message, StopReason
+from llama_models.llama3.api.datatypes import Message
 from llama_models.llama3.api.tokenizer import Tokenizer
 
 from ollama import AsyncClient
 
 from llama_stack.apis.inference import *  # noqa: F403
-from llama_stack.providers.utils.inference.augment_messages import (
+from llama_stack.providers.utils.inference.openai_compat import (
-    augment_messages_for_tools,
+    get_sampling_options,
+    OpenAICompatCompletionChoice,
+    OpenAICompatCompletionResponse,
+    process_chat_completion_response,
+    process_chat_completion_stream_response,
+)
+from llama_stack.providers.utils.inference.prompt_adapter import (
+    chat_completion_request_to_prompt,
 )
-from llama_stack.providers.utils.inference.routable import RoutableProviderForModels
 
-# TODO: Eventually this will move to the llama cli model list command
+OLLAMA_SUPPORTED_MODELS = {
-# mapping of Model SKUs to ollama models
-OLLAMA_SUPPORTED_SKUS = {
-    # "Llama3.1-8B-Instruct": "llama3.1",
     "Llama3.1-8B-Instruct": "llama3.1:8b-instruct-fp16",
     "Llama3.1-70B-Instruct": "llama3.1:70b-instruct-fp16",
+    "Llama3.2-1B-Instruct": "llama3.2:1b-instruct-fp16",
+    "Llama3.2-3B-Instruct": "llama3.2:3b-instruct-fp16",
+    "Llama-Guard-3-8B": "xe/llamaguard3:latest",
 }
 
 
-class OllamaInferenceAdapter(Inference, RoutableProviderForModels):
+class OllamaInferenceAdapter(Inference):
     def __init__(self, url: str) -> None:
-        RoutableProviderForModels.__init__(
-            self, stack_to_provider_models_map=OLLAMA_SUPPORTED_SKUS
-        )
         self.url = url
-        tokenizer = Tokenizer.get_instance()
+        self.formatter = ChatFormat(Tokenizer.get_instance())
-        self.formatter = ChatFormat(tokenizer)
 
     @property
     def client(self) -> AsyncClient:
@@ -54,7 +56,29 @@ class OllamaInferenceAdapter(Inference, RoutableProviderForModels):
     async def shutdown(self) -> None:
         pass
 
-    async def completion(
+    async def register_model(self, model: ModelDef) -> None:
+        if model.identifier not in OLLAMA_SUPPORTED_MODELS:
+            raise ValueError(
+                f"Unsupported model {model.identifier}. Supported models: {OLLAMA_SUPPORTED_MODELS.keys()}"
+            )
+
+        ollama_model = OLLAMA_SUPPORTED_MODELS[model.identifier]
+        res = await self.client.ps()
+        need_model_pull = True
+        for r in res["models"]:
+            if ollama_model == r["model"]:
+                need_model_pull = False
+                break
+
+        print(f"Ollama model `{ollama_model}` needs pull -> {need_model_pull}")
+        if need_model_pull:
+            print(f"Pulling model: {ollama_model}")
+            status = await self.client.pull(ollama_model)
+            assert (
+                status["status"] == "success"
+            ), f"Failed to pull model {self.model} in ollama"
+
+    def completion(
         self,
         model: str,
         content: InterleavedTextMedia,
@@ -64,32 +88,7 @@ class OllamaInferenceAdapter(Inference, RoutableProviderForModels):
     ) -> AsyncGenerator:
         raise NotImplementedError()
 
-    def _messages_to_ollama_messages(self, messages: list[Message]) -> list:
+    def chat_completion(
-        ollama_messages = []
-        for message in messages:
-            if message.role == "ipython":
-                role = "tool"
-            else:
-                role = message.role
-            ollama_messages.append({"role": role, "content": message.content})
-
-        return ollama_messages
-
-    def get_ollama_chat_options(self, request: ChatCompletionRequest) -> dict:
-        options = {}
-        if request.sampling_params is not None:
-            for attr in {"temperature", "top_p", "top_k", "max_tokens"}:
-                if getattr(request.sampling_params, attr):
-                    options[attr] = getattr(request.sampling_params, attr)
-            if (
-                request.sampling_params.repetition_penalty is not None
-                and request.sampling_params.repetition_penalty != 1.0
-            ):
-                options["repeat_penalty"] = request.sampling_params.repetition_penalty
-
-        return options
-
-    async def chat_completion(
         self,
         model: str,
         messages: List[Message],
@@ -110,156 +109,54 @@ class OllamaInferenceAdapter(Inference, RoutableProviderForModels):
             stream=stream,
             logprobs=logprobs,
         )
-
+        if stream:
-        messages = augment_messages_for_tools(request)
+            return self._stream_chat_completion(request)
-        # accumulate sampling params and other options to pass to ollama
-        options = self.get_ollama_chat_options(request)
-        ollama_model = self.map_to_provider_model(request.model)
-
-        res = await self.client.ps()
-        need_model_pull = True
-        for r in res["models"]:
-            if ollama_model == r["model"]:
-                need_model_pull = False
-                break
-
-        if need_model_pull:
-            print(f"Pulling model: {ollama_model}")
-            status = await self.client.pull(ollama_model)
-            assert (
-                status["status"] == "success"
-            ), f"Failed to pull model {self.model} in ollama"
-
-        if not request.stream:
-            r = await self.client.chat(
-                model=ollama_model,
-                messages=self._messages_to_ollama_messages(messages),
-                stream=False,
-                options=options,
-            )
-            stop_reason = None
-            if r["done"]:
-                if r["done_reason"] == "stop":
-                    stop_reason = StopReason.end_of_turn
-                elif r["done_reason"] == "length":
-                    stop_reason = StopReason.out_of_tokens
-
-            completion_message = self.formatter.decode_assistant_message_from_content(
-                r["message"]["content"], stop_reason
-            )
-            yield ChatCompletionResponse(
-                completion_message=completion_message,
-                logprobs=None,
-            )
         else:
-            yield ChatCompletionResponseStreamChunk(
+            return self._nonstream_chat_completion(request)
-                event=ChatCompletionResponseEvent(
+
-                    event_type=ChatCompletionResponseEventType.start,
+    def _get_params(self, request: ChatCompletionRequest) -> dict:
-                    delta="",
+        return {
+            "model": OLLAMA_SUPPORTED_MODELS[request.model],
+            "prompt": chat_completion_request_to_prompt(request, self.formatter),
+            "options": get_sampling_options(request),
+            "raw": True,
+            "stream": request.stream,
+        }
+
+    async def _nonstream_chat_completion(
+        self, request: ChatCompletionRequest
+    ) -> ChatCompletionResponse:
+        params = self._get_params(request)
+        r = await self.client.generate(**params)
+        assert isinstance(r, dict)
+
+        choice = OpenAICompatCompletionChoice(
+            finish_reason=r["done_reason"] if r["done"] else None,
+            text=r["response"],
         )
+        response = OpenAICompatCompletionResponse(
+            choices=[choice],
         )
-            stream = await self.client.chat(
+        return process_chat_completion_response(request, response, self.formatter)
-                model=ollama_model,
+
-                messages=self._messages_to_ollama_messages(messages),
+    async def _stream_chat_completion(
-                stream=True,
+        self, request: ChatCompletionRequest
-                options=options,
+    ) -> AsyncGenerator:
+        params = self._get_params(request)
+
+        async def _generate_and_convert_to_openai_compat():
+            s = await self.client.generate(**params)
+            async for chunk in s:
+                choice = OpenAICompatCompletionChoice(
+                    finish_reason=chunk["done_reason"] if chunk["done"] else None,
+                    text=chunk["response"],
+                )
+                yield OpenAICompatCompletionResponse(
+                    choices=[choice],
                 )
 
-            buffer = ""
+        stream = _generate_and_convert_to_openai_compat()
-            ipython = False
+        async for chunk in process_chat_completion_stream_response(
-            stop_reason = None
+            request, stream, self.formatter
-
+        ):
-            async for chunk in stream:
+            yield chunk
-                if chunk["done"]:
-                    if stop_reason is None and chunk["done_reason"] == "stop":
-                        stop_reason = StopReason.end_of_turn
-                    elif stop_reason is None and chunk["done_reason"] == "length":
-                        stop_reason = StopReason.out_of_tokens
-                    break
-
-                text = chunk["message"]["content"]
-
-                # check if its a tool call ( aka starts with <|python_tag|> )
-                if not ipython and text.startswith("<|python_tag|>"):
-                    ipython = True
-                    yield ChatCompletionResponseStreamChunk(
-                        event=ChatCompletionResponseEvent(
-                            event_type=ChatCompletionResponseEventType.progress,
-                            delta=ToolCallDelta(
-                                content="",
-                                parse_status=ToolCallParseStatus.started,
-                            ),
-                        )
-                    )
-                    buffer += text
-                    continue
-
-                if ipython:
-                    if text == "<|eot_id|>":
-                        stop_reason = StopReason.end_of_turn
-                        text = ""
-                        continue
-                    elif text == "<|eom_id|>":
-                        stop_reason = StopReason.end_of_message
-                        text = ""
-                        continue
-
-                    buffer += text
-                    delta = ToolCallDelta(
-                        content=text,
-                        parse_status=ToolCallParseStatus.in_progress,
-                    )
-
-                    yield ChatCompletionResponseStreamChunk(
-                        event=ChatCompletionResponseEvent(
-                            event_type=ChatCompletionResponseEventType.progress,
-                            delta=delta,
-                            stop_reason=stop_reason,
-                        )
-                    )
-                else:
-                    buffer += text
-                    yield ChatCompletionResponseStreamChunk(
-                        event=ChatCompletionResponseEvent(
-                            event_type=ChatCompletionResponseEventType.progress,
-                            delta=text,
-                            stop_reason=stop_reason,
-                        )
-                    )
-
-            # parse tool calls and report errors
-            message = self.formatter.decode_assistant_message_from_content(
-                buffer, stop_reason
-            )
-            parsed_tool_calls = len(message.tool_calls) > 0
-            if ipython and not parsed_tool_calls:
-                yield ChatCompletionResponseStreamChunk(
-                    event=ChatCompletionResponseEvent(
-                        event_type=ChatCompletionResponseEventType.progress,
-                        delta=ToolCallDelta(
-                            content="",
-                            parse_status=ToolCallParseStatus.failure,
-                        ),
-                        stop_reason=stop_reason,
-                    )
-                )
-
-            for tool_call in message.tool_calls:
-                yield ChatCompletionResponseStreamChunk(
-                    event=ChatCompletionResponseEvent(
-                        event_type=ChatCompletionResponseEventType.progress,
-                        delta=ToolCallDelta(
-                            content=tool_call,
-                            parse_status=ToolCallParseStatus.success,
-                        ),
-                        stop_reason=stop_reason,
-                    )
-                )
-
-            yield ChatCompletionResponseStreamChunk(
-                event=ChatCompletionResponseEvent(
-                    event_type=ChatCompletionResponseEventType.complete,
-                    delta="",
-                    stop_reason=stop_reason,
-                )
-            )

llama_stack/providers/adapters/inference/sample/sample.py

@@ -9,14 +9,12 @@ from .config import SampleConfig
 
 from llama_stack.apis.inference import *  # noqa: F403
 
-from llama_stack.distribution.datatypes import RoutableProvider
 
-
+class SampleInferenceImpl(Inference):
-class SampleInferenceImpl(Inference, RoutableProvider):
     def __init__(self, config: SampleConfig):
         self.config = config
 
-    async def validate_routing_keys(self, routing_keys: list[str]) -> None:
+    async def register_model(self, model: ModelDef) -> None:
         # these are the model names the Llama Stack will use to route requests to this provider
         # perform validation here if necessary
         pass

llama_stack/providers/adapters/inference/tgi/config.py

@@ -34,7 +34,7 @@ class InferenceEndpointImplConfig(BaseModel):
 
 @json_schema_type
 class InferenceAPIImplConfig(BaseModel):
-    model_id: str = Field(
+    huggingface_repo: str = Field(
         description="The model ID of the model on the Hugging Face Hub (e.g. 'meta-llama/Meta-Llama-3.1-70B-Instruct')",
     )
     api_token: Optional[str] = Field(

llama_stack/providers/adapters/inference/tgi/tgi.py

@@ -10,14 +10,19 @@ from typing import AsyncGenerator
 
 from huggingface_hub import AsyncInferenceClient, HfApi
 from llama_models.llama3.api.chat_format import ChatFormat
-from llama_models.llama3.api.datatypes import StopReason
 from llama_models.llama3.api.tokenizer import Tokenizer
-
+from llama_models.sku_list import resolve_model
-from llama_stack.distribution.datatypes import RoutableProvider
 
 from llama_stack.apis.inference import *  # noqa: F403
-from llama_stack.providers.utils.inference.augment_messages import (
+from llama_stack.providers.utils.inference.openai_compat import (
-    augment_messages_for_tools,
+    get_sampling_options,
+    OpenAICompatCompletionChoice,
+    OpenAICompatCompletionResponse,
+    process_chat_completion_response,
+    process_chat_completion_stream_response,
+)
+from llama_stack.providers.utils.inference.prompt_adapter import (
+    chat_completion_request_to_model_input_info,
 )
 
 from .config import InferenceAPIImplConfig, InferenceEndpointImplConfig, TGIImplConfig
@@ -25,24 +30,31 @@ from .config import InferenceAPIImplConfig, InferenceEndpointImplConfig, TGIImpl
 logger = logging.getLogger(__name__)
 
 
-class _HfAdapter(Inference, RoutableProvider):
+class _HfAdapter(Inference):
     client: AsyncInferenceClient
     max_tokens: int
     model_id: str
 
     def __init__(self) -> None:
-        self.tokenizer = Tokenizer.get_instance()
+        self.formatter = ChatFormat(Tokenizer.get_instance())
-        self.formatter = ChatFormat(self.tokenizer)
 
-    async def validate_routing_keys(self, routing_keys: list[str]) -> None:
+    async def register_model(self, model: ModelDef) -> None:
-        # these are the model names the Llama Stack will use to route requests to this provider
+        resolved_model = resolve_model(model.identifier)
-        # perform validation here if necessary
+        if resolved_model is None:
-        pass
+            raise ValueError(f"Unknown model: {model.identifier}")
+
+        if not resolved_model.huggingface_repo:
+            raise ValueError(
+                f"Model {model.identifier} does not have a HuggingFace repo"
+            )
+
+        if self.model_id != resolved_model.huggingface_repo:
+            raise ValueError(f"Model mismatch: {model.identifier} != {self.model_id}")
 
     async def shutdown(self) -> None:
         pass
 
-    async def completion(
+    def completion(
         self,
         model: str,
         content: InterleavedTextMedia,
@@ -52,16 +64,7 @@ class _HfAdapter(Inference, RoutableProvider):
     ) -> AsyncGenerator:
         raise NotImplementedError()
 
-    def get_chat_options(self, request: ChatCompletionRequest) -> dict:
+    def chat_completion(
-        options = {}
-        if request.sampling_params is not None:
-            for attr in {"temperature", "top_p", "top_k", "max_tokens"}:
-                if getattr(request.sampling_params, attr):
-                    options[attr] = getattr(request.sampling_params, attr)
-
-        return options
-
-    async def chat_completion(
         self,
         model: str,
         messages: List[Message],
@@ -83,146 +86,64 @@ class _HfAdapter(Inference, RoutableProvider):
             logprobs=logprobs,
         )
 
-        messages = augment_messages_for_tools(request)
+        if stream:
-        model_input = self.formatter.encode_dialog_prompt(messages)
+            return self._stream_chat_completion(request)
-        prompt = self.tokenizer.decode(model_input.tokens)
+        else:
+            return self._nonstream_chat_completion(request)
 
-        input_tokens = len(model_input.tokens)
+    async def _nonstream_chat_completion(
+        self, request: ChatCompletionRequest
+    ) -> ChatCompletionResponse:
+        params = self._get_params(request)
+        r = await self.client.text_generation(**params)
+
+        choice = OpenAICompatCompletionChoice(
+            finish_reason=r.details.finish_reason,
+            text="".join(t.text for t in r.details.tokens),
+        )
+        response = OpenAICompatCompletionResponse(
+            choices=[choice],
+        )
+        return process_chat_completion_response(request, response, self.formatter)
+
+    async def _stream_chat_completion(
+        self, request: ChatCompletionRequest
+    ) -> AsyncGenerator:
+        params = self._get_params(request)
+
+        async def _generate_and_convert_to_openai_compat():
+            s = await self.client.text_generation(**params)
+            async for chunk in s:
+                token_result = chunk.token
+
+                choice = OpenAICompatCompletionChoice(text=token_result.text)
+                yield OpenAICompatCompletionResponse(
+                    choices=[choice],
+                )
+
+        stream = _generate_and_convert_to_openai_compat()
+        async for chunk in process_chat_completion_stream_response(
+            request, stream, self.formatter
+        ):
+            yield chunk
+
+    def _get_params(self, request: ChatCompletionRequest) -> dict:
+        prompt, input_tokens = chat_completion_request_to_model_input_info(
+            request, self.formatter
+        )
         max_new_tokens = min(
             request.sampling_params.max_tokens or (self.max_tokens - input_tokens),
             self.max_tokens - input_tokens - 1,
         )
-
+        options = get_sampling_options(request)
-        print(f"Calculated max_new_tokens: {max_new_tokens}")
+        return dict(
-
-        options = self.get_chat_options(request)
-        if not request.stream:
-            response = await self.client.text_generation(
             prompt=prompt,
-                stream=False,
+            stream=request.stream,
             details=True,
             max_new_tokens=max_new_tokens,
             stop_sequences=["<|eom_id|>", "<|eot_id|>"],
             **options,
         )
-            stop_reason = None
-            if response.details.finish_reason:
-                if response.details.finish_reason in ["stop", "eos_token"]:
-                    stop_reason = StopReason.end_of_turn
-                elif response.details.finish_reason == "length":
-                    stop_reason = StopReason.out_of_tokens
-
-            completion_message = self.formatter.decode_assistant_message_from_content(
-                response.generated_text,
-                stop_reason,
-            )
-            yield ChatCompletionResponse(
-                completion_message=completion_message,
-                logprobs=None,
-            )
-
-        else:
-            yield ChatCompletionResponseStreamChunk(
-                event=ChatCompletionResponseEvent(
-                    event_type=ChatCompletionResponseEventType.start,
-                    delta="",
-                )
-            )
-            buffer = ""
-            ipython = False
-            stop_reason = None
-            tokens = []
-
-            async for response in await self.client.text_generation(
-                prompt=prompt,
-                stream=True,
-                details=True,
-                max_new_tokens=max_new_tokens,
-                stop_sequences=["<|eom_id|>", "<|eot_id|>"],
-                **options,
-            ):
-                token_result = response.token
-
-                buffer += token_result.text
-                tokens.append(token_result.id)
-
-                if not ipython and buffer.startswith("<|python_tag|>"):
-                    ipython = True
-                    yield ChatCompletionResponseStreamChunk(
-                        event=ChatCompletionResponseEvent(
-                            event_type=ChatCompletionResponseEventType.progress,
-                            delta=ToolCallDelta(
-                                content="",
-                                parse_status=ToolCallParseStatus.started,
-                            ),
-                        )
-                    )
-                    buffer = buffer[len("<|python_tag|>") :]
-                    continue
-
-                if token_result.text == "<|eot_id|>":
-                    stop_reason = StopReason.end_of_turn
-                    text = ""
-                elif token_result.text == "<|eom_id|>":
-                    stop_reason = StopReason.end_of_message
-                    text = ""
-                else:
-                    text = token_result.text
-
-                if ipython:
-                    delta = ToolCallDelta(
-                        content=text,
-                        parse_status=ToolCallParseStatus.in_progress,
-                    )
-                else:
-                    delta = text
-
-                if stop_reason is None:
-                    yield ChatCompletionResponseStreamChunk(
-                        event=ChatCompletionResponseEvent(
-                            event_type=ChatCompletionResponseEventType.progress,
-                            delta=delta,
-                            stop_reason=stop_reason,
-                        )
-                    )
-
-            if stop_reason is None:
-                stop_reason = StopReason.out_of_tokens
-
-            # parse tool calls and report errors
-            message = self.formatter.decode_assistant_message(tokens, stop_reason)
-            parsed_tool_calls = len(message.tool_calls) > 0
-            if ipython and not parsed_tool_calls:
-                yield ChatCompletionResponseStreamChunk(
-                    event=ChatCompletionResponseEvent(
-                        event_type=ChatCompletionResponseEventType.progress,
-                        delta=ToolCallDelta(
-                            content="",
-                            parse_status=ToolCallParseStatus.failure,
-                        ),
-                        stop_reason=stop_reason,
-                    )
-                )
-
-            for tool_call in message.tool_calls:
-                yield ChatCompletionResponseStreamChunk(
-                    event=ChatCompletionResponseEvent(
-                        event_type=ChatCompletionResponseEventType.progress,
-                        delta=ToolCallDelta(
-                            content=tool_call,
-                            parse_status=ToolCallParseStatus.success,
-                        ),
-                        stop_reason=stop_reason,
-                    )
-                )
-
-            yield ChatCompletionResponseStreamChunk(
-                event=ChatCompletionResponseEvent(
-                    event_type=ChatCompletionResponseEventType.complete,
-                    delta="",
-                    stop_reason=stop_reason,
-                )
-            )
 
 
 class TGIAdapter(_HfAdapter):
@@ -236,7 +157,7 @@ class TGIAdapter(_HfAdapter):
 class InferenceAPIAdapter(_HfAdapter):
     async def initialize(self, config: InferenceAPIImplConfig) -> None:
         self.client = AsyncInferenceClient(
-            model=config.model_id, token=config.api_token
+            model=config.huggingface_repo, token=config.api_token
         )
         endpoint_info = await self.client.get_endpoint_info()
         self.max_tokens = endpoint_info["max_total_tokens"]

llama_stack/providers/adapters/inference/together/together.py

@@ -8,17 +8,22 @@ from typing import AsyncGenerator
 
 from llama_models.llama3.api.chat_format import ChatFormat
 
-from llama_models.llama3.api.datatypes import Message, StopReason
+from llama_models.llama3.api.datatypes import Message
 from llama_models.llama3.api.tokenizer import Tokenizer
 
 from together import Together
 
 from llama_stack.apis.inference import *  # noqa: F403
 from llama_stack.distribution.request_headers import NeedsRequestProviderData
-from llama_stack.providers.utils.inference.augment_messages import (
+from llama_stack.providers.utils.inference.model_registry import ModelRegistryHelper
-    augment_messages_for_tools,
+from llama_stack.providers.utils.inference.openai_compat import (
+    get_sampling_options,
+    process_chat_completion_response,
+    process_chat_completion_stream_response,
+)
+from llama_stack.providers.utils.inference.prompt_adapter import (
+    chat_completion_request_to_prompt,
 )
-from llama_stack.providers.utils.inference.routable import RoutableProviderForModels
 
 from .config import TogetherImplConfig
 
@@ -34,19 +39,14 @@ TOGETHER_SUPPORTED_MODELS = {
 
 
 class TogetherInferenceAdapter(
-    Inference, NeedsRequestProviderData, RoutableProviderForModels
+    ModelRegistryHelper, Inference, NeedsRequestProviderData
 ):
     def __init__(self, config: TogetherImplConfig) -> None:
-        RoutableProviderForModels.__init__(
+        ModelRegistryHelper.__init__(
             self, stack_to_provider_models_map=TOGETHER_SUPPORTED_MODELS
         )
         self.config = config
-        tokenizer = Tokenizer.get_instance()
+        self.formatter = ChatFormat(Tokenizer.get_instance())
-        self.formatter = ChatFormat(tokenizer)
-
-    @property
-    def client(self) -> Together:
-        return Together(api_key=self.config.api_key)
 
     async def initialize(self) -> None:
         return
@@ -64,27 +64,7 @@ class TogetherInferenceAdapter(
     ) -> AsyncGenerator:
         raise NotImplementedError()
 
-    def _messages_to_together_messages(self, messages: list[Message]) -> list:
+    def chat_completion(
-        together_messages = []
-        for message in messages:
-            if message.role == "ipython":
-                role = "tool"
-            else:
-                role = message.role
-            together_messages.append({"role": role, "content": message.content})
-
-        return together_messages
-
-    def get_together_chat_options(self, request: ChatCompletionRequest) -> dict:
-        options = {}
-        if request.sampling_params is not None:
-            for attr in {"temperature", "top_p", "top_k", "max_tokens"}:
-                if getattr(request.sampling_params, attr):
-                    options[attr] = getattr(request.sampling_params, attr)
-
-        return options
-
-    async def chat_completion(
         self,
         model: str,
         messages: List[Message],
@@ -95,7 +75,6 @@ class TogetherInferenceAdapter(
         stream: Optional[bool] = False,
         logprobs: Optional[LogProbConfig] = None,
     ) -> AsyncGenerator:
-
         together_api_key = None
         if self.config.api_key is not None:
             together_api_key = self.config.api_key
@@ -108,7 +87,6 @@ class TogetherInferenceAdapter(
             together_api_key = provider_data.together_api_key
 
         client = Together(api_key=together_api_key)
-        # wrapper request to make it easier to pass around (internal only, not exposed to API)
         request = ChatCompletionRequest(
             model=model,
             messages=messages,
@@ -120,146 +98,39 @@ class TogetherInferenceAdapter(
             logprobs=logprobs,
         )
 
-        # accumulate sampling params and other options to pass to together
+        if stream:
-        options = self.get_together_chat_options(request)
+            return self._stream_chat_completion(request, client)
-        together_model = self.map_to_provider_model(request.model)
-        messages = augment_messages_for_tools(request)
-
-        if not request.stream:
-            # TODO: might need to add back an async here
-            r = client.chat.completions.create(
-                model=together_model,
-                messages=self._messages_to_together_messages(messages),
-                stream=False,
-                **options,
-            )
-            stop_reason = None
-            if r.choices[0].finish_reason:
-                if (
-                    r.choices[0].finish_reason == "stop"
-                    or r.choices[0].finish_reason == "eos"
-                ):
-                    stop_reason = StopReason.end_of_turn
-                elif r.choices[0].finish_reason == "length":
-                    stop_reason = StopReason.out_of_tokens
-
-            completion_message = self.formatter.decode_assistant_message_from_content(
-                r.choices[0].message.content, stop_reason
-            )
-            yield ChatCompletionResponse(
-                completion_message=completion_message,
-                logprobs=None,
-            )
         else:
-            yield ChatCompletionResponseStreamChunk(
+            return self._nonstream_chat_completion(request, client)
-                event=ChatCompletionResponseEvent(
-                    event_type=ChatCompletionResponseEventType.start,
-                    delta="",
-                )
-            )
 
-            buffer = ""
+    async def _nonstream_chat_completion(
-            ipython = False
+        self, request: ChatCompletionRequest, client: Together
-            stop_reason = None
+    ) -> ChatCompletionResponse:
+        params = self._get_params(request)
+        r = client.completions.create(**params)
+        return process_chat_completion_response(request, r, self.formatter)
 
-            for chunk in client.chat.completions.create(
+    async def _stream_chat_completion(
-                model=together_model,
+        self, request: ChatCompletionRequest, client: Together
-                messages=self._messages_to_together_messages(messages),
+    ) -> AsyncGenerator:
-                stream=True,
+        params = self._get_params(request)
-                **options,
+
+        # if we shift to TogetherAsyncClient, we won't need this wrapper
+        async def _to_async_generator():
+            s = client.completions.create(**params)
+            for chunk in s:
+                yield chunk
+
+        stream = _to_async_generator()
+        async for chunk in process_chat_completion_stream_response(
+            request, stream, self.formatter
         ):
-                if finish_reason := chunk.choices[0].finish_reason:
+            yield chunk
-                    if stop_reason is None and finish_reason in ["stop", "eos"]:
-                        stop_reason = StopReason.end_of_turn
-                    elif stop_reason is None and finish_reason == "length":
-                        stop_reason = StopReason.out_of_tokens
-                    break
 
-                text = chunk.choices[0].delta.content
+    def _get_params(self, request: ChatCompletionRequest) -> dict:
-                if text is None:
+        return {
-                    continue
+            "model": self.map_to_provider_model(request.model),
-
+            "prompt": chat_completion_request_to_prompt(request, self.formatter),
-                # check if its a tool call ( aka starts with <|python_tag|> )
+            "stream": request.stream,
-                if not ipython and text.startswith("<|python_tag|>"):
+            **get_sampling_options(request),
-                    ipython = True
+        }
-                    yield ChatCompletionResponseStreamChunk(
-                        event=ChatCompletionResponseEvent(
-                            event_type=ChatCompletionResponseEventType.progress,
-                            delta=ToolCallDelta(
-                                content="",
-                                parse_status=ToolCallParseStatus.started,
-                            ),
-                        )
-                    )
-                    buffer += text
-                    continue
-
-                if ipython:
-                    if text == "<|eot_id|>":
-                        stop_reason = StopReason.end_of_turn
-                        text = ""
-                        continue
-                    elif text == "<|eom_id|>":
-                        stop_reason = StopReason.end_of_message
-                        text = ""
-                        continue
-
-                    buffer += text
-                    delta = ToolCallDelta(
-                        content=text,
-                        parse_status=ToolCallParseStatus.in_progress,
-                    )
-
-                    yield ChatCompletionResponseStreamChunk(
-                        event=ChatCompletionResponseEvent(
-                            event_type=ChatCompletionResponseEventType.progress,
-                            delta=delta,
-                            stop_reason=stop_reason,
-                        )
-                    )
-                else:
-                    buffer += text
-                    yield ChatCompletionResponseStreamChunk(
-                        event=ChatCompletionResponseEvent(
-                            event_type=ChatCompletionResponseEventType.progress,
-                            delta=text,
-                            stop_reason=stop_reason,
-                        )
-                    )
-
-            # parse tool calls and report errors
-            message = self.formatter.decode_assistant_message_from_content(
-                buffer, stop_reason
-            )
-            parsed_tool_calls = len(message.tool_calls) > 0
-            if ipython and not parsed_tool_calls:
-                yield ChatCompletionResponseStreamChunk(
-                    event=ChatCompletionResponseEvent(
-                        event_type=ChatCompletionResponseEventType.progress,
-                        delta=ToolCallDelta(
-                            content="",
-                            parse_status=ToolCallParseStatus.failure,
-                        ),
-                        stop_reason=stop_reason,
-                    )
-                )
-
-            for tool_call in message.tool_calls:
-                yield ChatCompletionResponseStreamChunk(
-                    event=ChatCompletionResponseEvent(
-                        event_type=ChatCompletionResponseEventType.progress,
-                        delta=ToolCallDelta(
-                            content=tool_call,
-                            parse_status=ToolCallParseStatus.success,
-                        ),
-                        stop_reason=stop_reason,
-                    )
-                )
-
-            yield ChatCompletionResponseStreamChunk(
-                event=ChatCompletionResponseEvent(
-                    event_type=ChatCompletionResponseEventType.complete,
-                    delta="",
-                    stop_reason=stop_reason,
-                )
-            )

llama_stack/providers/adapters/memory/chroma/chroma.py

@@ -5,7 +5,6 @@
 # the root directory of this source tree.
 
 import json
-import uuid
 from typing import List
 from urllib.parse import urlparse
 
@@ -13,7 +12,6 @@ import chromadb
 from numpy.typing import NDArray
 
 from llama_stack.apis.memory import *  # noqa: F403
-from llama_stack.distribution.datatypes import RoutableProvider
 
 from llama_stack.providers.utils.memory.vector_store import (
     BankWithIndex,
@@ -65,7 +63,7 @@ class ChromaIndex(EmbeddingIndex):
         return QueryDocumentsResponse(chunks=chunks, scores=scores)
 
 
-class ChromaMemoryAdapter(Memory, RoutableProvider):
+class ChromaMemoryAdapter(Memory):
     def __init__(self, url: str) -> None:
         print(f"Initializing ChromaMemoryAdapter with url: {url}")
         url = url.rstrip("/")
@@ -93,48 +91,33 @@ class ChromaMemoryAdapter(Memory, RoutableProvider):
     async def shutdown(self) -> None:
         pass
 
-    async def validate_routing_keys(self, routing_keys: List[str]) -> None:
+    async def register_memory_bank(
-        print(f"[chroma] Registering memory bank routing keys: {routing_keys}")
-        pass
-
-    async def create_memory_bank(
         self,
-        name: str,
+        memory_bank: MemoryBankDef,
-        config: MemoryBankConfig,
+    ) -> None:
-        url: Optional[URL] = None,
+        assert (
-    ) -> MemoryBank:
+            memory_bank.type == MemoryBankType.vector.value
-        bank_id = str(uuid.uuid4())
+        ), f"Only vector banks are supported {memory_bank.type}"
-        bank = MemoryBank(
+
-            bank_id=bank_id,
+        collection = await self.client.get_or_create_collection(
-            name=name,
+            name=memory_bank.identifier,
-            config=config,
-            url=url,
-        )
-        collection = await self.client.create_collection(
-            name=bank_id,
-            metadata={"bank": bank.json()},
         )
         bank_index = BankWithIndex(
-            bank=bank, index=ChromaIndex(self.client, collection)
+            bank=memory_bank, index=ChromaIndex(self.client, collection)
         )
-        self.cache[bank_id] = bank_index
+        self.cache[memory_bank.identifier] = bank_index
-        return bank
-
-    async def get_memory_bank(self, bank_id: str) -> Optional[MemoryBank]:
-        bank_index = await self._get_and_cache_bank_index(bank_id)
-        if bank_index is None:
-            return None
-        return bank_index.bank
 
     async def _get_and_cache_bank_index(self, bank_id: str) -> Optional[BankWithIndex]:
         if bank_id in self.cache:
             return self.cache[bank_id]
 
+        bank = await self.memory_bank_store.get_memory_bank(bank_id)
+        if bank is None:
+            raise ValueError(f"Bank {bank_id} not found")
+
         collections = await self.client.list_collections()
         for collection in collections:
             if collection.name == bank_id:
-                print(collection.metadata)
-                bank = MemoryBank(**json.loads(collection.metadata["bank"]))
                 index = BankWithIndex(
                     bank=bank,
                     index=ChromaIndex(self.client, collection),

llama_stack/providers/adapters/memory/pgvector/pgvector.py

@@ -4,18 +4,14 @@
 # This source code is licensed under the terms described in the LICENSE file in
 # the root directory of this source tree.
 
-import uuid
+from typing import List
-from typing import List, Tuple
 
 import psycopg2
 from numpy.typing import NDArray
 from psycopg2 import sql
 from psycopg2.extras import execute_values, Json
 
-from pydantic import BaseModel
-
 from llama_stack.apis.memory import *  # noqa: F403
-from llama_stack.distribution.datatypes import RoutableProvider
 
 from llama_stack.providers.utils.memory.vector_store import (
     ALL_MINILM_L6_V2_DIMENSION,
@@ -32,33 +28,6 @@ def check_extension_version(cur):
     return result[0] if result else None
 
 
-def upsert_models(cur, keys_models: List[Tuple[str, BaseModel]]):
-    query = sql.SQL(
-        """
-        INSERT INTO metadata_store (key, data)
-        VALUES %s
-        ON CONFLICT (key) DO UPDATE
-        SET data = EXCLUDED.data
-    """
-    )
-
-    values = [(key, Json(model.dict())) for key, model in keys_models]
-    execute_values(cur, query, values, template="(%s, %s)")
-
-
-def load_models(cur, keys: List[str], cls):
-    query = "SELECT key, data FROM metadata_store"
-    if keys:
-        placeholders = ",".join(["%s"] * len(keys))
-        query += f" WHERE key IN ({placeholders})"
-        cur.execute(query, keys)
-    else:
-        cur.execute(query)
-
-    rows = cur.fetchall()
-    return [cls(**row["data"]) for row in rows]
-
-
 class PGVectorIndex(EmbeddingIndex):
     def __init__(self, bank: MemoryBank, dimension: int, cursor):
         self.cursor = cursor
@@ -119,7 +88,7 @@ class PGVectorIndex(EmbeddingIndex):
         return QueryDocumentsResponse(chunks=chunks, scores=scores)
 
 
-class PGVectorMemoryAdapter(Memory, RoutableProvider):
+class PGVectorMemoryAdapter(Memory):
     def __init__(self, config: PGVectorConfig) -> None:
         print(f"Initializing PGVectorMemoryAdapter -> {config.host}:{config.port}")
         self.config = config
@@ -144,14 +113,6 @@ class PGVectorMemoryAdapter(Memory, RoutableProvider):
             else:
                 raise RuntimeError("Vector extension is not installed.")
 
-            self.cursor.execute(
-                """
-                CREATE TABLE IF NOT EXISTS metadata_store (
-                    key TEXT PRIMARY KEY,
-                    data JSONB
-                )
-            """
-            )
         except Exception as e:
             import traceback
 
@@ -161,51 +122,28 @@ class PGVectorMemoryAdapter(Memory, RoutableProvider):
     async def shutdown(self) -> None:
         pass
 
-    async def validate_routing_keys(self, routing_keys: List[str]) -> None:
+    async def register_memory_bank(
-        print(f"[pgvector] Registering memory bank routing keys: {routing_keys}")
-        pass
-
-    async def create_memory_bank(
         self,
-        name: str,
+        memory_bank: MemoryBankDef,
-        config: MemoryBankConfig,
+    ) -> None:
-        url: Optional[URL] = None,
+        assert (
-    ) -> MemoryBank:
+            memory_bank.type == MemoryBankType.vector.value
-        bank_id = str(uuid.uuid4())
+        ), f"Only vector banks are supported {memory_bank.type}"
-        bank = MemoryBank(
+
-            bank_id=bank_id,
-            name=name,
-            config=config,
-            url=url,
-        )
-        upsert_models(
-            self.cursor,
-            [
-                (bank.bank_id, bank),
-            ],
-        )
         index = BankWithIndex(
-            bank=bank,
+            bank=memory_bank,
-            index=PGVectorIndex(bank, ALL_MINILM_L6_V2_DIMENSION, self.cursor),
+            index=PGVectorIndex(memory_bank, ALL_MINILM_L6_V2_DIMENSION, self.cursor),
         )
         self.cache[bank_id] = index
-        return bank
-
-    async def get_memory_bank(self, bank_id: str) -> Optional[MemoryBank]:
-        bank_index = await self._get_and_cache_bank_index(bank_id)
-        if bank_index is None:
-            return None
-        return bank_index.bank
 
     async def _get_and_cache_bank_index(self, bank_id: str) -> Optional[BankWithIndex]:
         if bank_id in self.cache:
             return self.cache[bank_id]
 
-        banks = load_models(self.cursor, [bank_id], MemoryBank)
+        bank = await self.memory_bank_store.get_memory_bank(bank_id)
-        if not banks:
+        if not bank:
-            return None
+            raise ValueError(f"Bank {bank_id} not found")
 
-        bank = banks[0]
         index = BankWithIndex(
             bank=bank,
             index=PGVectorIndex(bank, ALL_MINILM_L6_V2_DIMENSION, self.cursor),

llama_stack/providers/adapters/memory/sample/sample.py

@@ -9,14 +9,12 @@ from .config import SampleConfig
 
 from llama_stack.apis.memory import *  # noqa: F403
 
-from llama_stack.distribution.datatypes import RoutableProvider
 
-
+class SampleMemoryImpl(Memory):
-class SampleMemoryImpl(Memory, RoutableProvider):
     def __init__(self, config: SampleConfig):
         self.config = config
 
-    async def validate_routing_keys(self, routing_keys: list[str]) -> None:
+    async def register_memory_bank(self, memory_bank: MemoryBankDef) -> None:
         # these are the memory banks the Llama Stack will use to route requests to this provider
         # perform validation here if necessary
         pass

llama_stack/providers/adapters/memory/weaviate/__init__.py

@@ -0,0 +1,15 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.
+
+from .config import WeaviateConfig, WeaviateRequestProviderData  # noqa: F401
+
+
+async def get_adapter_impl(config: WeaviateConfig, _deps):
+    from .weaviate import WeaviateMemoryAdapter
+
+    impl = WeaviateMemoryAdapter(config)
+    await impl.initialize()
+    return impl

llama_stack/providers/adapters/memory/weaviate/config.py

@@ -0,0 +1,16 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.
+
+from pydantic import BaseModel
+
+
+class WeaviateRequestProviderData(BaseModel):
+    weaviate_api_key: str
+    weaviate_cluster_url: str
+
+
+class WeaviateConfig(BaseModel):
+    pass

llama_stack/providers/adapters/memory/weaviate/weaviate.py

@@ -0,0 +1,180 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.
+import json
+
+from typing import Any, Dict, List, Optional
+
+import weaviate
+import weaviate.classes as wvc
+from numpy.typing import NDArray
+from weaviate.classes.init import Auth
+
+from llama_stack.apis.memory import *  # noqa: F403
+from llama_stack.distribution.request_headers import NeedsRequestProviderData
+from llama_stack.providers.utils.memory.vector_store import (
+    BankWithIndex,
+    EmbeddingIndex,
+)
+
+from .config import WeaviateConfig, WeaviateRequestProviderData
+
+
+class WeaviateIndex(EmbeddingIndex):
+    def __init__(self, client: weaviate.Client, collection_name: str):
+        self.client = client
+        self.collection_name = collection_name
+
+    async def add_chunks(self, chunks: List[Chunk], embeddings: NDArray):
+        assert len(chunks) == len(
+            embeddings
+        ), f"Chunk length {len(chunks)} does not match embedding length {len(embeddings)}"
+
+        data_objects = []
+        for i, chunk in enumerate(chunks):
+            data_objects.append(
+                wvc.data.DataObject(
+                    properties={
+                        "chunk_content": chunk.json(),
+                    },
+                    vector=embeddings[i].tolist(),
+                )
+            )
+
+        # Inserting chunks into a prespecified Weaviate collection
+        collection = self.client.collections.get(self.collection_name)
+
+        # TODO: make this async friendly
+        collection.data.insert_many(data_objects)
+
+    async def query(self, embedding: NDArray, k: int) -> QueryDocumentsResponse:
+        collection = self.client.collections.get(self.collection_name)
+
+        results = collection.query.near_vector(
+            near_vector=embedding.tolist(),
+            limit=k,
+            return_metadata=wvc.query.MetadataQuery(distance=True),
+        )
+
+        chunks = []
+        scores = []
+        for doc in results.objects:
+            chunk_json = doc.properties["chunk_content"]
+            try:
+                chunk_dict = json.loads(chunk_json)
+                chunk = Chunk(**chunk_dict)
+            except Exception:
+                import traceback
+
+                traceback.print_exc()
+                print(f"Failed to parse document: {chunk_json}")
+                continue
+
+            chunks.append(chunk)
+            scores.append(1.0 / doc.metadata.distance)
+
+        return QueryDocumentsResponse(chunks=chunks, scores=scores)
+
+
+class WeaviateMemoryAdapter(Memory, NeedsRequestProviderData):
+    def __init__(self, config: WeaviateConfig) -> None:
+        self.config = config
+        self.client_cache = {}
+        self.cache = {}
+
+    def _get_client(self) -> weaviate.Client:
+        provider_data = self.get_request_provider_data()
+        assert provider_data is not None, "Request provider data must be set"
+        assert isinstance(provider_data, WeaviateRequestProviderData)
+
+        key = f"{provider_data.weaviate_cluster_url}::{provider_data.weaviate_api_key}"
+        if key in self.client_cache:
+            return self.client_cache[key]
+
+        client = weaviate.connect_to_weaviate_cloud(
+            cluster_url=provider_data.weaviate_cluster_url,
+            auth_credentials=Auth.api_key(provider_data.weaviate_api_key),
+        )
+        self.client_cache[key] = client
+        return client
+
+    async def initialize(self) -> None:
+        pass
+
+    async def shutdown(self) -> None:
+        for client in self.client_cache.values():
+            client.close()
+
+    async def register_memory_bank(
+        self,
+        memory_bank: MemoryBankDef,
+    ) -> None:
+        assert (
+            memory_bank.type == MemoryBankType.vector.value
+        ), f"Only vector banks are supported {memory_bank.type}"
+
+        client = self._get_client()
+
+        # Create collection if it doesn't exist
+        if not client.collections.exists(memory_bank.identifier):
+            client.collections.create(
+                name=memory_bank.identifier,
+                vectorizer_config=wvc.config.Configure.Vectorizer.none(),
+                properties=[
+                    wvc.config.Property(
+                        name="chunk_content",
+                        data_type=wvc.config.DataType.TEXT,
+                    ),
+                ],
+            )
+
+        index = BankWithIndex(
+            bank=memory_bank,
+            index=WeaviateIndex(client=client, collection_name=memory_bank.identifier),
+        )
+        self.cache[memory_bank.identifier] = index
+
+    async def _get_and_cache_bank_index(self, bank_id: str) -> Optional[BankWithIndex]:
+        if bank_id in self.cache:
+            return self.cache[bank_id]
+
+        bank = await self.memory_bank_store.get_memory_bank(bank_id)
+        if not bank:
+            raise ValueError(f"Bank {bank_id} not found")
+
+        client = self._get_client()
+        if not client.collections.exists(bank_id):
+            raise ValueError(f"Collection with name `{bank_id}` not found")
+
+        index = BankWithIndex(
+            bank=bank,
+            index=WeaviateIndex(client=client, collection_name=bank_id),
+        )
+        self.cache[bank_id] = index
+        return index
+
+    async def insert_documents(
+        self,
+        bank_id: str,
+        documents: List[MemoryBankDocument],
+        ttl_seconds: Optional[int] = None,
+    ) -> None:
+        index = await self._get_and_cache_bank_index(bank_id)
+        if not index:
+            raise ValueError(f"Bank {bank_id} not found")
+
+        await index.insert_documents(documents)
+
+    async def query_documents(
+        self,
+        bank_id: str,
+        query: InterleavedTextMedia,
+        params: Optional[Dict[str, Any]] = None,
+    ) -> QueryDocumentsResponse:
+        index = await self._get_and_cache_bank_index(bank_id)
+        if not index:
+            raise ValueError(f"Bank {bank_id} not found")
+
+        return await index.query_documents(query, params)

llama_stack/providers/adapters/safety/bedrock/bedrock.py

@@ -7,14 +7,12 @@
 import json
 import logging
 
-import traceback
 from typing import Any, Dict, List
 
 import boto3
 
 from llama_stack.apis.safety import *  # noqa
 from llama_models.llama3.api.datatypes import *  # noqa: F403
-from llama_stack.distribution.datatypes import RoutableProvider
 
 from .config import BedrockSafetyConfig
 
@@ -22,16 +20,17 @@ from .config import BedrockSafetyConfig
 logger = logging.getLogger(__name__)
 
 
-SUPPORTED_SHIELD_TYPES = [
+BEDROCK_SUPPORTED_SHIELDS = [
-    "bedrock_guardrail",
+    ShieldType.generic_content_shield.value,
 ]
 
 
-class BedrockSafetyAdapter(Safety, RoutableProvider):
+class BedrockSafetyAdapter(Safety):
     def __init__(self, config: BedrockSafetyConfig) -> None:
         if not config.aws_profile:
             raise ValueError(f"Missing boto_client aws_profile in model info::{config}")
         self.config = config
+        self.registered_shields = []
 
     async def initialize(self) -> None:
         try:
@@ -45,16 +44,27 @@ class BedrockSafetyAdapter(Safety, RoutableProvider):
     async def shutdown(self) -> None:
         pass
 
-    async def validate_routing_keys(self, routing_keys: List[str]) -> None:
+    async def register_shield(self, shield: ShieldDef) -> None:
-        for key in routing_keys:
+        if shield.type not in BEDROCK_SUPPORTED_SHIELDS:
-            if key not in SUPPORTED_SHIELD_TYPES:
+            raise ValueError(f"Unsupported safety shield type: {shield.type}")
-                raise ValueError(f"Unknown safety shield type: {key}")
+
+        shield_params = shield.params
+        if "guardrailIdentifier" not in shield_params:
+            raise ValueError(
+                "Error running request for BedrockGaurdrails:Missing GuardrailID in request"
+            )
+
+        if "guardrailVersion" not in shield_params:
+            raise ValueError(
+                "Error running request for BedrockGaurdrails:Missing guardrailVersion in request"
+            )
 
     async def run_shield(
         self, shield_type: str, messages: List[Message], params: Dict[str, Any] = None
     ) -> RunShieldResponse:
-        if shield_type not in SUPPORTED_SHIELD_TYPES:
+        shield_def = await self.shield_store.get_shield(shield_type)
-            raise ValueError(f"Unknown safety shield type: {shield_type}")
+        if not shield_def:
+            raise ValueError(f"Unknown shield {shield_type}")
 
         """This is the implementation for the bedrock guardrails. The input to the guardrails is to be of this format
         ```content = [
@@ -69,17 +79,9 @@ class BedrockSafetyAdapter(Safety, RoutableProvider):
 
         They contain content, role . For now we will extract the content and default the "qualifiers": ["query"]
         """
-        try:
-            logger.debug(f"run_shield::{params}::messages={messages}")
-            if "guardrailIdentifier" not in params:
-                raise RuntimeError(
-                    "Error running request for BedrockGaurdrails:Missing GuardrailID in request"
-                )
 
-            if "guardrailVersion" not in params:
+        shield_params = shield_def.params
-                raise RuntimeError(
+        logger.debug(f"run_shield::{shield_params}::messages={messages}")
-                    "Error running request for BedrockGaurdrails:Missing guardrailVersion in request"
-                )
 
         # - convert the messages into format Bedrock expects
         content_messages = []
@@ -90,12 +92,11 @@ class BedrockSafetyAdapter(Safety, RoutableProvider):
         )
 
         response = self.boto_client.apply_guardrail(
-                guardrailIdentifier=params.get("guardrailIdentifier"),
+            guardrailIdentifier=shield_params["guardrailIdentifier"],
-                guardrailVersion=params.get("guardrailVersion"),
+            guardrailVersion=shield_params["guardrailVersion"],
             source="OUTPUT",  # or 'INPUT' depending on your use case
             content=content_messages,
         )
-            logger.debug(f"run_shield:: response: {response}::")
         if response["action"] == "GUARDRAIL_INTERVENED":
             user_message = ""
             metadata = {}
@@ -105,16 +106,11 @@ class BedrockSafetyAdapter(Safety, RoutableProvider):
             for assessment in response["assessments"]:
                 # guardrails returns a list - however for this implementation we will leverage the last values
                 metadata = dict(assessment)
+
             return SafetyViolation(
                 user_message=user_message,
                 violation_level=ViolationLevel.ERROR,
                 metadata=metadata,
             )
 
-        except Exception:
-            error_str = traceback.format_exc()
-            logger.error(
-                f"Error in apply_guardrails:{error_str}:: RETURNING None !!!!!"
-            )
-
         return None

llama_stack/providers/adapters/safety/sample/sample.py

@@ -9,14 +9,12 @@ from .config import SampleConfig
 
 from llama_stack.apis.safety import *  # noqa: F403
 
-from llama_stack.distribution.datatypes import RoutableProvider
 
-
+class SampleSafetyImpl(Safety):
-class SampleSafetyImpl(Safety, RoutableProvider):
     def __init__(self, config: SampleConfig):
         self.config = config
 
-    async def validate_routing_keys(self, routing_keys: list[str]) -> None:
+    async def register_shield(self, shield: ShieldDef) -> None:
         # these are the safety shields the Llama Stack will use to route requests to this provider
         # perform validation here if necessary
         pass

llama_stack/providers/adapters/safety/together/together.py

@@ -6,26 +6,20 @@
 from together import Together
 
 from llama_models.llama3.api.datatypes import *  # noqa: F403
-from llama_stack.apis.safety import (
+from llama_stack.apis.safety import *  # noqa: F403
-    RunShieldResponse,
-    Safety,
-    SafetyViolation,
-    ViolationLevel,
-)
-from llama_stack.distribution.datatypes import RoutableProvider
 from llama_stack.distribution.request_headers import NeedsRequestProviderData
 
 from .config import TogetherSafetyConfig
 
 
-SAFETY_SHIELD_TYPES = {
+TOGETHER_SHIELD_MODEL_MAP = {
     "llama_guard": "meta-llama/Meta-Llama-Guard-3-8B",
     "Llama-Guard-3-8B": "meta-llama/Meta-Llama-Guard-3-8B",
     "Llama-Guard-3-11B-Vision": "meta-llama/Llama-Guard-3-11B-Vision-Turbo",
 }
 
 
-class TogetherSafetyImpl(Safety, NeedsRequestProviderData, RoutableProvider):
+class TogetherSafetyImpl(Safety, NeedsRequestProviderData):
     def __init__(self, config: TogetherSafetyConfig) -> None:
         self.config = config
 
@@ -35,16 +29,20 @@ class TogetherSafetyImpl(Safety, NeedsRequestProviderData, RoutableProvider):
     async def shutdown(self) -> None:
         pass
 
-    async def validate_routing_keys(self, routing_keys: List[str]) -> None:
+    async def register_shield(self, shield: ShieldDef) -> None:
-        for key in routing_keys:
+        if shield.type != ShieldType.llama_guard.value:
-            if key not in SAFETY_SHIELD_TYPES:
+            raise ValueError(f"Unsupported safety shield type: {shield.type}")
-                raise ValueError(f"Unknown safety shield type: {key}")
 
     async def run_shield(
         self, shield_type: str, messages: List[Message], params: Dict[str, Any] = None
     ) -> RunShieldResponse:
-        if shield_type not in SAFETY_SHIELD_TYPES:
+        shield_def = await self.shield_store.get_shield(shield_type)
-            raise ValueError(f"Unknown safety shield type: {shield_type}")
+        if not shield_def:
+            raise ValueError(f"Unknown shield {shield_type}")
+
+        model = shield_def.params.get("model", "llama_guard")
+        if model not in TOGETHER_SHIELD_MODEL_MAP:
+            raise ValueError(f"Unsupported safety model: {model}")
 
         together_api_key = None
         if self.config.api_key is not None:
@@ -57,8 +55,6 @@ class TogetherSafetyImpl(Safety, NeedsRequestProviderData, RoutableProvider):
                 )
             together_api_key = provider_data.together_api_key
 
-        model_name = SAFETY_SHIELD_TYPES[shield_type]
-
         # messages can have role assistant or user
         api_messages = []
         for message in messages:
@@ -66,7 +62,7 @@ class TogetherSafetyImpl(Safety, NeedsRequestProviderData, RoutableProvider):
                 api_messages.append({"role": message.role, "content": message.content})
 
         violation = await get_safety_response(
-            together_api_key, model_name, api_messages
+            together_api_key, TOGETHER_SHIELD_MODEL_MAP[model], api_messages
         )
         return RunShieldResponse(violation=violation)
 

llama_stack/providers/datatypes.py

@@ -43,23 +43,14 @@ class ProviderSpec(BaseModel):
         description="Higher-level API surfaces may depend on other providers to provide their functionality",
     )
 
+    # used internally by the resolver; this is a hack for now
+    deps__: List[str] = Field(default_factory=list)
+
 
 class RoutingTable(Protocol):
-    def get_routing_keys(self) -> List[str]: ...
-
     def get_provider_impl(self, routing_key: str) -> Any: ...
 
 
-class RoutableProvider(Protocol):
-    """
-    A provider which sits behind the RoutingTable and can get routed to.
-
-    All Inference / Safety / Memory providers fall into this bucket.
-    """
-
-    async def validate_routing_keys(self, keys: List[str]) -> None: ...
-
-
 @json_schema_type
 class AdapterSpec(BaseModel):
     adapter_type: str = Field(
@@ -156,6 +147,10 @@ as being "Llama Stack compatible"
         return None
 
 
+def is_passthrough(spec: ProviderSpec) -> bool:
+    return isinstance(spec, RemoteProviderSpec) and spec.adapter is None
+
+
 # Can avoid this by using Pydantic computed_field
 def remote_provider_spec(
     api: Api, adapter: Optional[AdapterSpec] = None

llama_stack/providers/impls/meta_reference/agents/agent_instance.py

@@ -144,6 +144,8 @@ class ChatAgent(ShieldRunnerMixin):
     async def create_and_execute_turn(
         self, request: AgentTurnCreateRequest
     ) -> AsyncGenerator:
+        assert request.stream is True, "Non-streaming not supported"
+
         session_info = await self.storage.get_session_info(request.session_id)
         if session_info is None:
             raise ValueError(f"Session {request.session_id} not found")
@@ -635,14 +637,13 @@ class ChatAgent(ShieldRunnerMixin):
             raise ValueError(f"Session {session_id} not found")
 
         if session_info.memory_bank_id is None:
-            memory_bank = await self.memory_api.create_memory_bank(
+            bank_id = f"memory_bank_{session_id}"
-                name=f"memory_bank_{session_id}",
+            memory_bank = VectorMemoryBankDef(
-                config=VectorMemoryBankConfig(
+                identifier=bank_id,
                 embedding_model="all-MiniLM-L6-v2",
                 chunk_size_in_tokens=512,
-                ),
             )
-            bank_id = memory_bank.bank_id
+            await self.memory_api.register_memory_bank(memory_bank)
             await self.storage.add_memory_bank_to_session(session_id, bank_id)
         else:
             bank_id = session_info.memory_bank_id
@@ -673,7 +674,7 @@ class ChatAgent(ShieldRunnerMixin):
 
     async def _retrieve_context(
         self, session_id: str, messages: List[Message], attachments: List[Attachment]
-    ) -> Tuple[List[str], List[int]]:  # (rag_context, bank_ids)
+    ) -> Tuple[Optional[List[str]], Optional[List[int]]]:  # (rag_context, bank_ids)
         bank_ids = []
 
         memory = self._memory_tool_definition()
@@ -722,12 +723,13 @@ class ChatAgent(ShieldRunnerMixin):
         chunks = [c for r in results for c in r.chunks]
         scores = [s for r in results for s in r.scores]
 
+        if not chunks:
+            return None, bank_ids
+
         # sort by score
         chunks, scores = zip(
             *sorted(zip(chunks, scores), key=lambda x: x[1], reverse=True)
         )
-        if not chunks:
-            return None, bank_ids
 
         tokens = 0
         picked = []

llama_stack/providers/impls/meta_reference/agents/agents.py

@@ -100,7 +100,7 @@ class MetaReferenceAgentsImpl(Agents):
             session_id=session_id,
         )
 
-    async def create_agent_turn(
+    def create_agent_turn(
         self,
         agent_id: str,
         session_id: str,
@@ -113,16 +113,22 @@ class MetaReferenceAgentsImpl(Agents):
         attachments: Optional[List[Attachment]] = None,
         stream: Optional[bool] = False,
     ) -> AsyncGenerator:
-        agent = await self.get_agent(agent_id)
-
-        # wrapper request to make it easier to pass around (internal only, not exposed to API)
         request = AgentTurnCreateRequest(
             agent_id=agent_id,
             session_id=session_id,
             messages=messages,
             attachments=attachments,
-            stream=stream,
+            stream=True,
         )
+        if stream:
+            return self._create_agent_turn_streaming(request)
+        else:
+            raise NotImplementedError("Non-streaming agent turns not yet implemented")
 
+    async def _create_agent_turn_streaming(
+        self,
+        request: AgentTurnCreateRequest,
+    ) -> AsyncGenerator:
+        agent = await self.get_agent(request.agent_id)
         async for event in agent.create_and_execute_turn(request):
             yield event

llama_stack/providers/impls/meta_reference/codeshield/__init__.py

@@ -0,0 +1,15 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.
+
+from .config import CodeShieldConfig
+
+
+async def get_provider_impl(config: CodeShieldConfig, deps):
+    from .code_scanner import MetaReferenceCodeScannerSafetyImpl
+
+    impl = MetaReferenceCodeScannerSafetyImpl(config, deps)
+    await impl.initialize()
+    return impl

llama_stack/providers/impls/meta_reference/codeshield/code_scanner.py

@@ -0,0 +1,58 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.
+
+from typing import Any, Dict, List
+
+from llama_models.llama3.api.datatypes import interleaved_text_media_as_str, Message
+from termcolor import cprint
+
+from .config import CodeScannerConfig
+
+from llama_stack.apis.safety import *  # noqa: F403
+
+
+class MetaReferenceCodeScannerSafetyImpl(Safety):
+    def __init__(self, config: CodeScannerConfig, deps) -> None:
+        self.config = config
+
+    async def initialize(self) -> None:
+        pass
+
+    async def shutdown(self) -> None:
+        pass
+
+    async def register_shield(self, shield: ShieldDef) -> None:
+        if shield.type != ShieldType.code_scanner.value:
+            raise ValueError(f"Unsupported safety shield type: {shield.type}")
+
+    async def run_shield(
+        self,
+        shield_type: str,
+        messages: List[Message],
+        params: Dict[str, Any] = None,
+    ) -> RunShieldResponse:
+        shield_def = await self.shield_store.get_shield(shield_type)
+        if not shield_def:
+            raise ValueError(f"Unknown shield {shield_type}")
+
+        from codeshield.cs import CodeShield
+
+        text = "\n".join([interleaved_text_media_as_str(m.content) for m in messages])
+        cprint(f"Running CodeScannerShield on {text[50:]}", color="magenta")
+        result = await CodeShield.scan_code(text)
+
+        violation = None
+        if result.is_insecure:
+            violation = SafetyViolation(
+                violation_level=(ViolationLevel.ERROR),
+                user_message="Sorry, I found security concerns in the code.",
+                metadata={
+                    "violation_type": ",".join(
+                        [issue.pattern_id for issue in result.issues_found]
+                    )
+                },
+            )
+        return RunShieldResponse(violation=violation)

llama_stack/providers/impls/meta_reference/codeshield/config.py

@@ -0,0 +1,11 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.
+
+from pydantic import BaseModel
+
+
+class CodeShieldConfig(BaseModel):
+    pass

llama_stack/providers/impls/meta_reference/evals/evals.py

@@ -43,13 +43,12 @@ class MetaReferenceEvalsImpl(Evals):
         print("generation start")
         for msg in x1[:5]:
             print("generation for msg: ", msg)
-            response = self.inference_api.chat_completion(
+            response = await self.inference_api.chat_completion(
                 model=model,
                 messages=[msg],
                 stream=False,
             )
-            async for x in response:
+            generation_outputs.append(response.completion_message.content)
-                generation_outputs.append(x.completion_message.content)
 
         x2 = task_impl.postprocess(generation_outputs)
         eval_results = task_impl.score(x2)

llama_stack/providers/impls/meta_reference/inference/generation.py

@@ -297,7 +297,7 @@ class Llama:
                 token=next_token[0].item(),
                 text=self.tokenizer.decode(next_token.tolist()),
                 logprobs=(
-                    token_logprobs[:, prev_pos + 1 : cur_pos + 1][0].tolist()
+                    token_logprobs[:, cur_pos : cur_pos + 1][0].tolist()
                     if logprobs
                     else None
                 ),

llama_stack/providers/impls/meta_reference/inference/inference.py

@@ -6,15 +6,14 @@
 
 import asyncio
 
-from typing import AsyncIterator, List, Union
+from typing import AsyncGenerator, List
 
 from llama_models.sku_list import resolve_model
 
 from llama_models.llama3.api.datatypes import *  # noqa: F403
 from llama_stack.apis.inference import *  # noqa: F403
-from llama_stack.distribution.datatypes import RoutableProvider
+from llama_stack.providers.utils.inference.prompt_adapter import (
-from llama_stack.providers.utils.inference.augment_messages import (
+    chat_completion_request_to_messages,
-    augment_messages_for_tools,
 )
 
 from .config import MetaReferenceImplConfig
@@ -25,7 +24,7 @@ from .model_parallel import LlamaModelParallelGenerator
 SEMAPHORE = asyncio.Semaphore(1)
 
 
-class MetaReferenceInferenceImpl(Inference, RoutableProvider):
+class MetaReferenceInferenceImpl(Inference):
     def __init__(self, config: MetaReferenceImplConfig) -> None:
         self.config = config
         model = resolve_model(config.model)
@@ -35,21 +34,20 @@ class MetaReferenceInferenceImpl(Inference, RoutableProvider):
         # verify that the checkpoint actually is for this model lol
 
     async def initialize(self) -> None:
+        print(f"Loading model `{self.model.descriptor()}`")
         self.generator = LlamaModelParallelGenerator(self.config)
         self.generator.start()
 
-    async def validate_routing_keys(self, routing_keys: List[str]) -> None:
+    async def register_model(self, model: ModelDef) -> None:
-        assert (
+        if model.identifier != self.model.descriptor():
-            len(routing_keys) == 1
+            raise RuntimeError(
-        ), f"Only one routing key is supported {routing_keys}"
+                f"Model mismatch: {model.identifier} != {self.model.descriptor()}"
-        assert routing_keys[0] == self.config.model
+            )
 
     async def shutdown(self) -> None:
         self.generator.stop()
 
-    # hm, when stream=False, we should not be doing SSE :/ which is what the
+    def chat_completion(
-    # top-level server is going to do. make the typing more specific here
-    async def chat_completion(
         self,
         model: str,
         messages: List[Message],
@@ -59,9 +57,10 @@ class MetaReferenceInferenceImpl(Inference, RoutableProvider):
         tool_prompt_format: Optional[ToolPromptFormat] = ToolPromptFormat.json,
         stream: Optional[bool] = False,
         logprobs: Optional[LogProbConfig] = None,
-    ) -> AsyncIterator[
+    ) -> AsyncGenerator:
-        Union[ChatCompletionResponseStreamChunk, ChatCompletionResponse]
+        if logprobs:
-    ]:
+            assert logprobs.top_k == 1, f"Unexpected top_k={logprobs.top_k}"
+
         # wrapper request to make it easier to pass around (internal only, not exposed to API)
         request = ChatCompletionRequest(
             model=model,
@@ -74,7 +73,6 @@ class MetaReferenceInferenceImpl(Inference, RoutableProvider):
             logprobs=logprobs,
         )
 
-        messages = augment_messages_for_tools(request)
         model = resolve_model(request.model)
         if model is None:
             raise RuntimeError(
@@ -88,8 +86,64 @@ class MetaReferenceInferenceImpl(Inference, RoutableProvider):
         if SEMAPHORE.locked():
             raise RuntimeError("Only one concurrent request is supported")
 
-        async with SEMAPHORE:
         if request.stream:
+            return self._stream_chat_completion(request)
+        else:
+            return self._nonstream_chat_completion(request)
+
+    async def _nonstream_chat_completion(
+        self, request: ChatCompletionRequest
+    ) -> ChatCompletionResponse:
+        async with SEMAPHORE:
+            messages = chat_completion_request_to_messages(request)
+
+            tokens = []
+            logprobs = []
+            stop_reason = None
+
+            for token_result in self.generator.chat_completion(
+                messages=messages,
+                temperature=request.sampling_params.temperature,
+                top_p=request.sampling_params.top_p,
+                max_gen_len=request.sampling_params.max_tokens,
+                logprobs=request.logprobs,
+                tool_prompt_format=request.tool_prompt_format,
+            ):
+                tokens.append(token_result.token)
+
+                if token_result.text == "<|eot_id|>":
+                    stop_reason = StopReason.end_of_turn
+                elif token_result.text == "<|eom_id|>":
+                    stop_reason = StopReason.end_of_message
+
+                if request.logprobs:
+                    assert len(token_result.logprobs) == 1
+
+                    logprobs.append(
+                        TokenLogProbs(
+                            logprobs_by_token={
+                                token_result.text: token_result.logprobs[0]
+                            }
+                        )
+                    )
+
+            if stop_reason is None:
+                stop_reason = StopReason.out_of_tokens
+
+            message = self.generator.formatter.decode_assistant_message(
+                tokens, stop_reason
+            )
+            return ChatCompletionResponse(
+                completion_message=message,
+                logprobs=logprobs if request.logprobs else None,
+            )
+
+    async def _stream_chat_completion(
+        self, request: ChatCompletionRequest
+    ) -> AsyncGenerator:
+        async with SEMAPHORE:
+            messages = chat_completion_request_to_messages(request)
+
             yield ChatCompletionResponseStreamChunk(
                 event=ChatCompletionResponseEvent(
                     event_type=ChatCompletionResponseEventType.start,
@@ -99,10 +153,7 @@ class MetaReferenceInferenceImpl(Inference, RoutableProvider):
 
             tokens = []
             logprobs = []
-
             stop_reason = None
-
-            buffer = ""
             ipython = False
 
             for token_result in self.generator.chat_completion(
@@ -113,10 +164,9 @@ class MetaReferenceInferenceImpl(Inference, RoutableProvider):
                 logprobs=request.logprobs,
                 tool_prompt_format=request.tool_prompt_format,
             ):
-                buffer += token_result.text
                 tokens.append(token_result.token)
 
-                if not ipython and buffer.startswith("<|python_tag|>"):
+                if not ipython and token_result.text.startswith("<|python_tag|>"):
                     ipython = True
                     yield ChatCompletionResponseStreamChunk(
                         event=ChatCompletionResponseEvent(
@@ -127,13 +177,6 @@ class MetaReferenceInferenceImpl(Inference, RoutableProvider):
                             ),
                         )
                     )
-                    buffer = buffer[len("<|python_tag|>") :]
-                    continue
-
-                if not request.stream:
-                    if request.logprobs:
-                        logprobs.append(token_result.logprob)
-
                     continue
 
                 if token_result.text == "<|eot_id|>":
@@ -154,23 +197,32 @@ class MetaReferenceInferenceImpl(Inference, RoutableProvider):
                     delta = text
 
                 if stop_reason is None:
+                    if request.logprobs:
+                        assert len(token_result.logprobs) == 1
+
+                        logprobs.append(
+                            TokenLogProbs(
+                                logprobs_by_token={
+                                    token_result.text: token_result.logprobs[0]
+                                }
+                            )
+                        )
                     yield ChatCompletionResponseStreamChunk(
                         event=ChatCompletionResponseEvent(
                             event_type=ChatCompletionResponseEventType.progress,
                             delta=delta,
                             stop_reason=stop_reason,
+                            logprobs=logprobs if request.logprobs else None,
                         )
                     )
 
             if stop_reason is None:
                 stop_reason = StopReason.out_of_tokens
 
-            # TODO(ashwin): parse tool calls separately here and report errors?
-            # if someone breaks the iteration before coming here we are toast
             message = self.generator.formatter.decode_assistant_message(
                 tokens, stop_reason
             )
-            if request.stream:
+
             parsed_tool_calls = len(message.tool_calls) > 0
             if ipython and not parsed_tool_calls:
                 yield ChatCompletionResponseStreamChunk(
@@ -203,10 +255,3 @@ class MetaReferenceInferenceImpl(Inference, RoutableProvider):
                     stop_reason=stop_reason,
                 )
             )
-
-                # TODO(ashwin): what else do we need to send out here when everything finishes?
-            else:
-                yield ChatCompletionResponse(
-                    completion_message=message,
-                    logprobs=logprobs if request.logprobs else None,
-                )

llama_stack/providers/impls/meta_reference/inference/quantization/loader.py

@@ -13,15 +13,15 @@ from typing import Optional
 import torch
 
 from fairscale.nn.model_parallel.mappings import reduce_from_model_parallel_region
-from llama_models.llama3.api.model import Transformer, TransformerBlock
 
+from llama_models.datatypes import CheckpointQuantizationFormat
+from llama_models.llama3.reference_impl.model import Transformer, TransformerBlock
 from termcolor import cprint
 from torch import Tensor
 
 from llama_stack.apis.inference import QuantizationType
 
-from llama_stack.apis.inference.config import (
+from llama_stack.providers.impls.meta_reference.inference.config import (
-    CheckpointQuantizationFormat,
     MetaReferenceImplConfig,
 )
 

llama_stack/providers/impls/meta_reference/memory/faiss.py

@@ -5,7 +5,6 @@
 # the root directory of this source tree.
 
 import logging
-import uuid
 
 from typing import Any, Dict, List, Optional
 
@@ -14,7 +13,6 @@ import numpy as np
 from numpy.typing import NDArray
 
 from llama_models.llama3.api.datatypes import *  # noqa: F403
-from llama_stack.distribution.datatypes import RoutableProvider
 
 from llama_stack.apis.memory import *  # noqa: F403
 from llama_stack.providers.utils.memory.vector_store import (
@@ -63,7 +61,7 @@ class FaissIndex(EmbeddingIndex):
         return QueryDocumentsResponse(chunks=chunks, scores=scores)
 
 
-class FaissMemoryImpl(Memory, RoutableProvider):
+class FaissMemoryImpl(Memory):
     def __init__(self, config: FaissImplConfig) -> None:
         self.config = config
         self.cache = {}
@@ -72,37 +70,18 @@ class FaissMemoryImpl(Memory, RoutableProvider):
 
     async def shutdown(self) -> None: ...
 
-    async def validate_routing_keys(self, routing_keys: List[str]) -> None:
+    async def register_memory_bank(
-        print(f"[faiss] Registering memory bank routing keys: {routing_keys}")
-        pass
-
-    async def create_memory_bank(
         self,
-        name: str,
+        memory_bank: MemoryBankDef,
-        config: MemoryBankConfig,
+    ) -> None:
-        url: Optional[URL] = None,
-    ) -> MemoryBank:
-        assert url is None, "URL is not supported for this implementation"
         assert (
-            config.type == MemoryBankType.vector.value
+            memory_bank.type == MemoryBankType.vector.value
-        ), f"Only vector banks are supported {config.type}"
+        ), f"Only vector banks are supported {memory_bank.type}"
 
-        bank_id = str(uuid.uuid4())
+        index = BankWithIndex(
-        bank = MemoryBank(
+            bank=memory_bank, index=FaissIndex(ALL_MINILM_L6_V2_DIMENSION)
-            bank_id=bank_id,
-            name=name,
-            config=config,
-            url=url,
         )
-        index = BankWithIndex(bank=bank, index=FaissIndex(ALL_MINILM_L6_V2_DIMENSION))
+        self.cache[memory_bank.identifier] = index
-        self.cache[bank_id] = index
-        return bank
-
-    async def get_memory_bank(self, bank_id: str) -> Optional[MemoryBank]:
-        index = self.cache.get(bank_id)
-        if index is None:
-            return None
-        return index.bank
 
     async def insert_documents(
         self,

llama_stack/providers/impls/meta_reference/safety/base.py

@@ -44,7 +44,6 @@ def message_content_as_str(message: Message) -> str:
     return interleaved_text_media_as_str(message.content)
 
 
-# For shields that operate on simple strings
 class TextShield(ShieldBase):
     def convert_messages_to_text(self, messages: List[Message]) -> str:
         return "\n".join([message_content_as_str(m) for m in messages])
@@ -56,9 +55,3 @@ class TextShield(ShieldBase):
     @abstractmethod
     async def run_impl(self, text: str) -> ShieldResponse:
         raise NotImplementedError()
-
-
-class DummyShield(TextShield):
-    async def run_impl(self, text: str) -> ShieldResponse:
-        # Dummy return LOW to test e2e
-        return ShieldResponse(is_violation=False)

llama_stack/providers/impls/meta_reference/safety/config.py

@@ -9,23 +9,19 @@ from typing import List, Optional
 
 from llama_models.sku_list import CoreModelId, safety_models
 
-from pydantic import BaseModel, validator
+from pydantic import BaseModel, field_validator
 
 
-class MetaReferenceShieldType(Enum):
+class PromptGuardType(Enum):
-    llama_guard = "llama_guard"
+    injection = "injection"
-    code_scanner_guard = "code_scanner_guard"
+    jailbreak = "jailbreak"
-    injection_shield = "injection_shield"
-    jailbreak_shield = "jailbreak_shield"
 
 
 class LlamaGuardShieldConfig(BaseModel):
     model: str = "Llama-Guard-3-1B"
     excluded_categories: List[str] = []
-    disable_input_check: bool = False
-    disable_output_check: bool = False
 
-    @validator("model")
+    @field_validator("model")
     @classmethod
     def validate_model(cls, model: str) -> str:
         permitted_models = [
@@ -47,10 +43,6 @@ class LlamaGuardShieldConfig(BaseModel):
         return model
 
 
-class PromptGuardShieldConfig(BaseModel):
-    model: str = "Prompt-Guard-86M"
-
-
 class SafetyConfig(BaseModel):
     llama_guard_shield: Optional[LlamaGuardShieldConfig] = None
-    prompt_guard_shield: Optional[PromptGuardShieldConfig] = None
+    enable_prompt_guard: Optional[bool] = False

llama_stack/providers/impls/meta_reference/safety/llama_guard.py

@@ -113,8 +113,6 @@ class LlamaGuardShield(ShieldBase):
         model: str,
         inference_api: Inference,
         excluded_categories: List[str] = None,
-        disable_input_check: bool = False,
-        disable_output_check: bool = False,
         on_violation_action: OnViolationAction = OnViolationAction.RAISE,
     ):
         super().__init__(on_violation_action)
@@ -132,8 +130,6 @@ class LlamaGuardShield(ShieldBase):
         self.model = model
         self.inference_api = inference_api
         self.excluded_categories = excluded_categories
-        self.disable_input_check = disable_input_check
-        self.disable_output_check = disable_output_check
 
     def check_unsafe_response(self, response: str) -> Optional[str]:
         match = re.match(r"^unsafe\n(.*)$", response)
@@ -180,12 +176,6 @@ class LlamaGuardShield(ShieldBase):
 
     async def run(self, messages: List[Message]) -> ShieldResponse:
         messages = self.validate_messages(messages)
-        if self.disable_input_check and messages[-1].role == Role.user.value:
-            return ShieldResponse(is_violation=False)
-        elif self.disable_output_check and messages[-1].role == Role.assistant.value:
-            return ShieldResponse(
-                is_violation=False,
-            )
 
         if self.model == CoreModelId.llama_guard_3_11b_vision.value:
             shield_input_message = self.build_vision_shield_input(messages)

llama_stack/providers/impls/meta_reference/safety/safety.py

@@ -6,56 +6,43 @@
 
 from typing import Any, Dict, List
 
-from llama_models.sku_list import resolve_model
-
 from llama_stack.distribution.utils.model_utils import model_local_dir
 from llama_stack.apis.inference import *  # noqa: F403
 from llama_stack.apis.safety import *  # noqa: F403
 from llama_models.llama3.api.datatypes import *  # noqa: F403
-from llama_stack.distribution.datatypes import Api, RoutableProvider
+from llama_stack.distribution.datatypes import Api
 
-from llama_stack.providers.impls.meta_reference.safety.shields.base import (
+from .base import OnViolationAction, ShieldBase
-    OnViolationAction,
+from .config import SafetyConfig
-)
+from .llama_guard import LlamaGuardShield
-
+from .prompt_guard import InjectionShield, JailbreakShield, PromptGuardShield
-from .config import MetaReferenceShieldType, SafetyConfig
-
-from .shields import (
-    CodeScannerShield,
-    InjectionShield,
-    JailbreakShield,
-    LlamaGuardShield,
-    PromptGuardShield,
-    ShieldBase,
-)
 
 
-def resolve_and_get_path(model_name: str) -> str:
+PROMPT_GUARD_MODEL = "Prompt-Guard-86M"
-    model = resolve_model(model_name)
-    assert model is not None, f"Could not resolve model {model_name}"
-    model_dir = model_local_dir(model.descriptor())
-    return model_dir
 
 
-class MetaReferenceSafetyImpl(Safety, RoutableProvider):
+class MetaReferenceSafetyImpl(Safety):
     def __init__(self, config: SafetyConfig, deps) -> None:
         self.config = config
         self.inference_api = deps[Api.inference]
 
+        self.available_shields = []
+        if config.llama_guard_shield:
+            self.available_shields.append(ShieldType.llama_guard.value)
+        if config.enable_prompt_guard:
+            self.available_shields.append(ShieldType.prompt_guard.value)
+
     async def initialize(self) -> None:
-        shield_cfg = self.config.prompt_guard_shield
+        if self.config.enable_prompt_guard:
-        if shield_cfg is not None:
+            model_dir = model_local_dir(PROMPT_GUARD_MODEL)
-            model_dir = resolve_and_get_path(shield_cfg.model)
             _ = PromptGuardShield.instance(model_dir)
 
     async def shutdown(self) -> None:
         pass
 
-    async def validate_routing_keys(self, routing_keys: List[str]) -> None:
+    async def register_shield(self, shield: ShieldDef) -> None:
-        available_shields = [v.value for v in MetaReferenceShieldType]
+        if shield.type not in self.available_shields:
-        for key in routing_keys:
+            raise ValueError(f"Unsupported safety shield type: {shield.type}")
-            if key not in available_shields:
-                raise ValueError(f"Unknown safety shield type: {key}")
 
     async def run_shield(
         self,
@@ -63,10 +50,11 @@ class MetaReferenceSafetyImpl(Safety, RoutableProvider):
         messages: List[Message],
         params: Dict[str, Any] = None,
     ) -> RunShieldResponse:
-        available_shields = [v.value for v in MetaReferenceShieldType]
+        shield_def = await self.shield_store.get_shield(shield_type)
-        assert shield_type in available_shields, f"Unknown shield {shield_type}"
+        if not shield_def:
+            raise ValueError(f"Unknown shield {shield_type}")
 
-        shield = self.get_shield_impl(MetaReferenceShieldType(shield_type))
+        shield = self.get_shield_impl(shield_def)
 
         messages = messages.copy()
         # some shields like llama-guard require the first message to be a user message
@@ -92,34 +80,22 @@ class MetaReferenceSafetyImpl(Safety, RoutableProvider):
 
         return RunShieldResponse(violation=violation)
 
-    def get_shield_impl(self, typ: MetaReferenceShieldType) -> ShieldBase:
+    def get_shield_impl(self, shield: ShieldDef) -> ShieldBase:
-        cfg = self.config
+        if shield.type == ShieldType.llama_guard.value:
-        if typ == MetaReferenceShieldType.llama_guard:
+            cfg = self.config.llama_guard_shield
-            cfg = cfg.llama_guard_shield
-            assert (
-                cfg is not None
-            ), "Cannot use LlamaGuardShield since not present in config"
-
             return LlamaGuardShield(
                 model=cfg.model,
                 inference_api=self.inference_api,
                 excluded_categories=cfg.excluded_categories,
-                disable_input_check=cfg.disable_input_check,
-                disable_output_check=cfg.disable_output_check,
             )
-        elif typ == MetaReferenceShieldType.jailbreak_shield:
+        elif shield.type == ShieldType.prompt_guard.value:
-            assert (
+            model_dir = model_local_dir(PROMPT_GUARD_MODEL)
-                cfg.prompt_guard_shield is not None
+            subtype = shield.params.get("prompt_guard_type", "injection")
-            ), "Cannot use Jailbreak Shield since Prompt Guard not present in config"
+            if subtype == "injection":
-            model_dir = resolve_and_get_path(cfg.prompt_guard_shield.model)
-            return JailbreakShield.instance(model_dir)
-        elif typ == MetaReferenceShieldType.injection_shield:
-            assert (
-                cfg.prompt_guard_shield is not None
-            ), "Cannot use PromptGuardShield since not present in config"
-            model_dir = resolve_and_get_path(cfg.prompt_guard_shield.model)
                 return InjectionShield.instance(model_dir)
-        elif typ == MetaReferenceShieldType.code_scanner_guard:
+            elif subtype == "jailbreak":
-            return CodeScannerShield.instance()
+                return JailbreakShield.instance(model_dir)
             else:
-            raise ValueError(f"Unknown shield type: {typ}")
+                raise ValueError(f"Unknown prompt guard type: {subtype}")
+        else:
+            raise ValueError(f"Unknown shield type: {shield.type}")

llama_stack/providers/impls/meta_reference/safety/shields/__init__.py

@@ -1,33 +0,0 @@
-# Copyright (c) Meta Platforms, Inc. and affiliates.
-# All rights reserved.
-#
-# This source code is licensed under the terms described in the LICENSE file in
-# the root directory of this source tree.
-
-# supress warnings and spew of logs from hugging face
-import transformers
-
-from .base import (  # noqa: F401
-    DummyShield,
-    OnViolationAction,
-    ShieldBase,
-    ShieldResponse,
-    TextShield,
-)
-from .code_scanner import CodeScannerShield  # noqa: F401
-from .llama_guard import LlamaGuardShield  # noqa: F401
-from .prompt_guard import (  # noqa: F401
-    InjectionShield,
-    JailbreakShield,
-    PromptGuardShield,
-)
-
-transformers.logging.set_verbosity_error()
-
-import os
-
-os.environ["TOKENIZERS_PARALLELISM"] = "false"
-
-import warnings
-
-warnings.filterwarnings("ignore")

llama_stack/providers/impls/meta_reference/safety/shields/code_scanner.py

@@ -1,27 +0,0 @@
-# Copyright (c) Meta Platforms, Inc. and affiliates.
-# All rights reserved.
-#
-# This source code is licensed under the terms described in the LICENSE file in
-# the root directory of this source tree.
-
-from termcolor import cprint
-
-from .base import ShieldResponse, TextShield
-
-
-class CodeScannerShield(TextShield):
-    async def run_impl(self, text: str) -> ShieldResponse:
-        from codeshield.cs import CodeShield
-
-        cprint(f"Running CodeScannerShield on {text[50:]}", color="magenta")
-        result = await CodeShield.scan_code(text)
-        if result.is_insecure:
-            return ShieldResponse(
-                is_violation=True,
-                violation_type=",".join(
-                    [issue.pattern_id for issue in result.issues_found]
-                ),
-                violation_return_message="Sorry, I found security concerns in the code.",
-            )
-        else:
-            return ShieldResponse(is_violation=False)

llama_stack/providers/impls/vllm/__init__.py

@@ -0,0 +1,11 @@
+from typing import Any
+
+from .config import VLLMConfig
+
+
+async def get_provider_impl(config: VLLMConfig, _deps) -> Any:
+    from .vllm import VLLMInferenceImpl
+
+    impl = VLLMInferenceImpl(config)
+    await impl.initialize()
+    return impl

llama_stack/providers/impls/vllm/config.py

@@ -0,0 +1,35 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.
+
+from llama_models.schema_utils import json_schema_type
+from pydantic import BaseModel, Field, field_validator
+
+from llama_stack.providers.utils.inference import supported_inference_models
+
+
+@json_schema_type
+class VLLMConfig(BaseModel):
+    """Configuration for the vLLM inference provider."""
+
+    model: str = Field(
+        default="Llama3.1-8B-Instruct",
+        description="Model descriptor from `llama model list`",
+    )
+    tensor_parallel_size: int = Field(
+        default=1,
+        description="Number of tensor parallel replicas (number of GPUs to use).",
+    )
+
+    @field_validator("model")
+    @classmethod
+    def validate_model(cls, model: str) -> str:
+        permitted_models = supported_inference_models()
+        if model not in permitted_models:
+            model_list = "\n\t".join(permitted_models)
+            raise ValueError(
+                f"Unknown model: `{model}`. Choose from [\n\t{model_list}\n]"
+            )
+        return model

llama_stack/providers/impls/vllm/vllm.py

@@ -0,0 +1,241 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.
+
+import logging
+import os
+import uuid
+from typing import Any
+
+from llama_models.llama3.api.chat_format import ChatFormat
+from llama_models.llama3.api.datatypes import *  # noqa: F403
+from llama_models.llama3.api.tokenizer import Tokenizer
+
+from vllm.engine.arg_utils import AsyncEngineArgs
+from vllm.engine.async_llm_engine import AsyncLLMEngine
+from vllm.sampling_params import SamplingParams
+
+from llama_stack.apis.inference import *  # noqa: F403
+
+from llama_stack.providers.utils.inference.model_registry import ModelRegistryHelper
+from llama_stack.providers.utils.inference.openai_compat import (
+    OpenAICompatCompletionChoice,
+    OpenAICompatCompletionResponse,
+    process_chat_completion_response,
+    process_chat_completion_stream_response,
+)
+from llama_stack.providers.utils.inference.prompt_adapter import (
+    chat_completion_request_to_prompt,
+)
+
+from .config import VLLMConfig
+
+
+log = logging.getLogger(__name__)
+
+
+def _random_uuid() -> str:
+    return str(uuid.uuid4().hex)
+
+
+def _vllm_sampling_params(sampling_params: Any) -> SamplingParams:
+    """Convert sampling params to vLLM sampling params."""
+    if sampling_params is None:
+        return SamplingParams()
+
+    # TODO convert what I saw in my first test ... but surely there's more to do here
+    kwargs = {
+        "temperature": sampling_params.temperature,
+    }
+    if sampling_params.top_k >= 1:
+        kwargs["top_k"] = sampling_params.top_k
+    if sampling_params.top_p:
+        kwargs["top_p"] = sampling_params.top_p
+    if sampling_params.max_tokens >= 1:
+        kwargs["max_tokens"] = sampling_params.max_tokens
+    if sampling_params.repetition_penalty > 0:
+        kwargs["repetition_penalty"] = sampling_params.repetition_penalty
+
+    return SamplingParams(**kwargs)
+
+
+class VLLMInferenceImpl(ModelRegistryHelper, Inference):
+    """Inference implementation for vLLM."""
+
+    HF_MODEL_MAPPINGS = {
+        # TODO: seems like we should be able to build this table dynamically ...
+        "Llama3.1-8B": "meta-llama/Llama-3.1-8B",
+        "Llama3.1-70B": "meta-llama/Llama-3.1-70B",
+        "Llama3.1-405B:bf16-mp8": "meta-llama/Llama-3.1-405B",
+        "Llama3.1-405B": "meta-llama/Llama-3.1-405B-FP8",
+        "Llama3.1-405B:bf16-mp16": "meta-llama/Llama-3.1-405B",
+        "Llama3.1-8B-Instruct": "meta-llama/Llama-3.1-8B-Instruct",
+        "Llama3.1-70B-Instruct": "meta-llama/Llama-3.1-70B-Instruct",
+        "Llama3.1-405B-Instruct:bf16-mp8": "meta-llama/Llama-3.1-405B-Instruct",
+        "Llama3.1-405B-Instruct": "meta-llama/Llama-3.1-405B-Instruct-FP8",
+        "Llama3.1-405B-Instruct:bf16-mp16": "meta-llama/Llama-3.1-405B-Instruct",
+        "Llama3.2-1B": "meta-llama/Llama-3.2-1B",
+        "Llama3.2-3B": "meta-llama/Llama-3.2-3B",
+        "Llama3.2-11B-Vision": "meta-llama/Llama-3.2-11B-Vision",
+        "Llama3.2-90B-Vision": "meta-llama/Llama-3.2-90B-Vision",
+        "Llama3.2-1B-Instruct": "meta-llama/Llama-3.2-1B-Instruct",
+        "Llama3.2-3B-Instruct": "meta-llama/Llama-3.2-3B-Instruct",
+        "Llama3.2-11B-Vision-Instruct": "meta-llama/Llama-3.2-11B-Vision-Instruct",
+        "Llama3.2-90B-Vision-Instruct": "meta-llama/Llama-3.2-90B-Vision-Instruct",
+        "Llama-Guard-3-11B-Vision": "meta-llama/Llama-Guard-3-11B-Vision",
+        "Llama-Guard-3-1B:int4-mp1": "meta-llama/Llama-Guard-3-1B-INT4",
+        "Llama-Guard-3-1B": "meta-llama/Llama-Guard-3-1B",
+        "Llama-Guard-3-8B": "meta-llama/Llama-Guard-3-8B",
+        "Llama-Guard-3-8B:int8-mp1": "meta-llama/Llama-Guard-3-8B-INT8",
+        "Prompt-Guard-86M": "meta-llama/Prompt-Guard-86M",
+        "Llama-Guard-2-8B": "meta-llama/Llama-Guard-2-8B",
+    }
+
+    def __init__(self, config: VLLMConfig):
+        Inference.__init__(self)
+        ModelRegistryHelper.__init__(
+            self,
+            stack_to_provider_models_map=self.HF_MODEL_MAPPINGS,
+        )
+        self.config = config
+        self.engine = None
+
+        tokenizer = Tokenizer.get_instance()
+        self.formatter = ChatFormat(tokenizer)
+
+    async def initialize(self):
+        """Initialize the vLLM inference adapter."""
+
+        log.info("Initializing vLLM inference adapter")
+
+        # Disable usage stats reporting. This would be a surprising thing for most
+        # people to find out was on by default.
+        # https://docs.vllm.ai/en/latest/serving/usage_stats.html
+        if "VLLM_NO_USAGE_STATS" not in os.environ:
+            os.environ["VLLM_NO_USAGE_STATS"] = "1"
+
+        hf_model = self.HF_MODEL_MAPPINGS.get(self.config.model)
+
+        # TODO -- there are a ton of options supported here ...
+        engine_args = AsyncEngineArgs()
+        engine_args.model = hf_model
+        # We will need a new config item for this in the future if model support is more broad
+        # than it is today (llama only)
+        engine_args.tokenizer = hf_model
+        engine_args.tensor_parallel_size = self.config.tensor_parallel_size
+
+        self.engine = AsyncLLMEngine.from_engine_args(engine_args)
+
+    async def shutdown(self):
+        """Shutdown the vLLM inference adapter."""
+        log.info("Shutting down vLLM inference adapter")
+        if self.engine:
+            self.engine.shutdown_background_loop()
+
+    def completion(
+        self,
+        model: str,
+        content: InterleavedTextMedia,
+        sampling_params: Any | None = ...,
+        stream: bool | None = False,
+        logprobs: LogProbConfig | None = None,
+    ) -> CompletionResponse | CompletionResponseStreamChunk:
+        log.info("vLLM completion")
+        messages = [UserMessage(content=content)]
+        return self.chat_completion(
+            model=model,
+            messages=messages,
+            sampling_params=sampling_params,
+            stream=stream,
+            logprobs=logprobs,
+        )
+
+    def chat_completion(
+        self,
+        model: str,
+        messages: list[Message],
+        sampling_params: Any | None = ...,
+        tools: list[ToolDefinition] | None = ...,
+        tool_choice: ToolChoice | None = ...,
+        tool_prompt_format: ToolPromptFormat | None = ...,
+        stream: bool | None = False,
+        logprobs: LogProbConfig | None = None,
+    ) -> ChatCompletionResponse | ChatCompletionResponseStreamChunk:
+        log.info("vLLM chat completion")
+
+        assert self.engine is not None
+
+        request = ChatCompletionRequest(
+            model=model,
+            messages=messages,
+            sampling_params=sampling_params,
+            tools=tools or [],
+            tool_choice=tool_choice,
+            tool_prompt_format=tool_prompt_format,
+            stream=stream,
+            logprobs=logprobs,
+        )
+
+        log.info("Sampling params: %s", sampling_params)
+        request_id = _random_uuid()
+
+        prompt = chat_completion_request_to_prompt(request, self.formatter)
+        vllm_sampling_params = _vllm_sampling_params(request.sampling_params)
+        results_generator = self.engine.generate(
+            prompt, vllm_sampling_params, request_id
+        )
+        if stream:
+            return self._stream_chat_completion(request, results_generator)
+        else:
+            return self._nonstream_chat_completion(request, results_generator)
+
+    async def _nonstream_chat_completion(
+        self, request: ChatCompletionRequest, results_generator: AsyncGenerator
+    ) -> ChatCompletionResponse:
+        outputs = [o async for o in results_generator]
+        final_output = outputs[-1]
+
+        assert final_output is not None
+        outputs = final_output.outputs
+        finish_reason = outputs[-1].stop_reason
+        choice = OpenAICompatCompletionChoice(
+            finish_reason=finish_reason,
+            text="".join([output.text for output in outputs]),
+        )
+        response = OpenAICompatCompletionResponse(
+            choices=[choice],
+        )
+        return process_chat_completion_response(request, response, self.formatter)
+
+    async def _stream_chat_completion(
+        self, request: ChatCompletionRequest, results_generator: AsyncGenerator
+    ) -> AsyncGenerator:
+        async def _generate_and_convert_to_openai_compat():
+            async for chunk in results_generator:
+                if not chunk.outputs:
+                    log.warning("Empty chunk received")
+                    continue
+
+                text = "".join([output.text for output in chunk.outputs])
+                choice = OpenAICompatCompletionChoice(
+                    finish_reason=chunk.outputs[-1].stop_reason,
+                    text=text,
+                )
+                yield OpenAICompatCompletionResponse(
+                    choices=[choice],
+                )
+
+        stream = _generate_and_convert_to_openai_compat()
+        async for chunk in process_chat_completion_stream_response(
+            request, stream, self.formatter
+        ):
+            yield chunk
+
+    async def embeddings(
+        self, model: str, contents: list[InterleavedTextMedia]
+    ) -> EmbeddingsResponse:
+        log.info("vLLM embeddings")
+        # TODO
+        raise NotImplementedError()

llama_stack/providers/registry/inference.py

@@ -41,6 +41,7 @@ def available_providers() -> List[ProviderSpec]:
             adapter=AdapterSpec(
                 adapter_type="ollama",
                 pip_packages=["ollama"],
+                config_class="llama_stack.providers.adapters.inference.ollama.OllamaImplConfig",
                 module="llama_stack.providers.adapters.inference.ollama",
             ),
         ),
@@ -103,4 +104,24 @@ def available_providers() -> List[ProviderSpec]:
                 config_class="llama_stack.providers.adapters.inference.bedrock.BedrockConfig",
             ),
         ),
+        remote_provider_spec(
+            api=Api.inference,
+            adapter=AdapterSpec(
+                adapter_type="databricks",
+                pip_packages=[
+                    "openai",
+                ],
+                module="llama_stack.providers.adapters.inference.databricks",
+                config_class="llama_stack.providers.adapters.inference.databricks.DatabricksImplConfig",
+            ),
+        ),
+        InlineProviderSpec(
+            api=Api.inference,
+            provider_type="vllm",
+            pip_packages=[
+                "vllm",
+            ],
+            module="llama_stack.providers.impls.vllm",
+            config_class="llama_stack.providers.impls.vllm.VLLMConfig",
+        ),
     ]

llama_stack/providers/registry/memory.py

@@ -56,6 +56,16 @@ def available_providers() -> List[ProviderSpec]:
                 config_class="llama_stack.providers.adapters.memory.pgvector.PGVectorConfig",
             ),
         ),
+        remote_provider_spec(
+            Api.memory,
+            AdapterSpec(
+                adapter_type="weaviate",
+                pip_packages=EMBEDDING_DEPS + ["weaviate-client"],
+                module="llama_stack.providers.adapters.memory.weaviate",
+                config_class="llama_stack.providers.adapters.memory.weaviate.WeaviateConfig",
+                provider_data_validator="llama_stack.providers.adapters.memory.weaviate.WeaviateRequestProviderData",
+            ),
+        ),
         remote_provider_spec(
             api=Api.memory,
             adapter=AdapterSpec(

llama_stack/providers/registry/safety.py

@@ -21,7 +21,6 @@ def available_providers() -> List[ProviderSpec]:
             api=Api.safety,
             provider_type="meta-reference",
             pip_packages=[
-                "codeshield",
                 "transformers",
                 "torch --index-url https://download.pytorch.org/whl/cpu",
             ],
@@ -61,4 +60,14 @@ def available_providers() -> List[ProviderSpec]:
                 provider_data_validator="llama_stack.providers.adapters.safety.together.TogetherProviderDataValidator",
             ),
         ),
+        InlineProviderSpec(
+            api=Api.safety,
+            provider_type="meta-reference/codeshield",
+            pip_packages=[
+                "codeshield",
+            ],
+            module="llama_stack.providers.impls.meta_reference.codeshield",
+            config_class="llama_stack.providers.impls.meta_reference.codeshield.CodeShieldConfig",
+            api_dependencies=[],
+        ),
     ]

llama_stack/providers/tests/__init__.py

@@ -0,0 +1,5 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.

llama_stack/providers/tests/agents/__init__.py

@@ -0,0 +1,5 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.

llama_stack/providers/tests/inference/__init__.py

@@ -0,0 +1,5 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.

llama_stack/providers/tests/inference/provider_config_example.yaml

@@ -0,0 +1,25 @@
+providers:
+  - provider_id: test-ollama
+    provider_type: remote::ollama
+    config:
+      host: localhost
+      port: 11434
+  - provider_id: test-tgi
+    provider_type: remote::tgi
+    config:
+      url: http://localhost:7001
+  - provider_id: test-remote
+    provider_type: remote
+    config:
+      host: localhost
+      port: 7002
+  - provider_id: test-together
+    provider_type: remote::together
+    config: {}
+# if a provider needs private keys from the client, they use the
+# "get_request_provider_data" function (see distribution/request_headers.py)
+# this is a place to provide such data.
+provider_data:
+  "test-together":
+    together_api_key:
+      0xdeadbeefputrealapikeyhere

llama_stack/providers/tests/inference/test_inference.py

@@ -0,0 +1,243 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.
+
+import itertools
+
+import pytest
+import pytest_asyncio
+
+from llama_models.llama3.api.datatypes import *  # noqa: F403
+from llama_stack.apis.inference import *  # noqa: F403
+
+from llama_stack.distribution.datatypes import *  # noqa: F403
+from llama_stack.providers.tests.resolver import resolve_impls_for_test
+
+# How to run this test:
+#
+# 1. Ensure you have a conda with the right dependencies installed. This is a bit tricky
+#    since it depends on the provider you are testing. On top of that you need
+#    `pytest` and `pytest-asyncio` installed.
+#
+# 2. Copy and modify the provider_config_example.yaml depending on the provider you are testing.
+#
+# 3. Run:
+#
+# ```bash
+# PROVIDER_ID=<your_provider> \
+#   PROVIDER_CONFIG=provider_config.yaml \
+#   pytest -s llama_stack/providers/tests/memory/test_inference.py \
+#   --tb=short --disable-warnings
+# ```
+
+
+def group_chunks(response):
+    return {
+        event_type: list(group)
+        for event_type, group in itertools.groupby(
+            response, key=lambda chunk: chunk.event.event_type
+        )
+    }
+
+
+Llama_8B = "Llama3.1-8B-Instruct"
+Llama_3B = "Llama3.2-3B-Instruct"
+
+
+def get_expected_stop_reason(model: str):
+    return StopReason.end_of_message if "Llama3.1" in model else StopReason.end_of_turn
+
+
+# This is going to create multiple Stack impls without tearing down the previous one
+# Fix that!
+@pytest_asyncio.fixture(
+    scope="session",
+    params=[
+        {"model": Llama_8B},
+        {"model": Llama_3B},
+    ],
+    ids=lambda d: d["model"],
+)
+async def inference_settings(request):
+    model = request.param["model"]
+    impls = await resolve_impls_for_test(
+        Api.inference,
+        models=[
+            ModelDef(
+                identifier=model,
+                llama_model=model,
+            )
+        ],
+    )
+
+    return {
+        "impl": impls[Api.inference],
+        "common_params": {
+            "model": model,
+            "tool_choice": ToolChoice.auto,
+            "tool_prompt_format": (
+                ToolPromptFormat.json
+                if "Llama3.1" in model
+                else ToolPromptFormat.python_list
+            ),
+        },
+    }
+
+
+@pytest.fixture
+def sample_messages():
+    return [
+        SystemMessage(content="You are a helpful assistant."),
+        UserMessage(content="What's the weather like today?"),
+    ]
+
+
+@pytest.fixture
+def sample_tool_definition():
+    return ToolDefinition(
+        tool_name="get_weather",
+        description="Get the current weather",
+        parameters={
+            "location": ToolParamDefinition(
+                param_type="string",
+                description="The city and state, e.g. San Francisco, CA",
+            ),
+        },
+    )
+
+
+@pytest.mark.asyncio
+async def test_chat_completion_non_streaming(inference_settings, sample_messages):
+    inference_impl = inference_settings["impl"]
+    response = await inference_impl.chat_completion(
+        messages=sample_messages,
+        stream=False,
+        **inference_settings["common_params"],
+    )
+
+    assert isinstance(response, ChatCompletionResponse)
+    assert response.completion_message.role == "assistant"
+    assert isinstance(response.completion_message.content, str)
+    assert len(response.completion_message.content) > 0
+
+
+@pytest.mark.asyncio
+async def test_chat_completion_streaming(inference_settings, sample_messages):
+    inference_impl = inference_settings["impl"]
+    response = [
+        r
+        async for r in inference_impl.chat_completion(
+            messages=sample_messages,
+            stream=True,
+            **inference_settings["common_params"],
+        )
+    ]
+
+    assert len(response) > 0
+    assert all(
+        isinstance(chunk, ChatCompletionResponseStreamChunk) for chunk in response
+    )
+    grouped = group_chunks(response)
+    assert len(grouped[ChatCompletionResponseEventType.start]) == 1
+    assert len(grouped[ChatCompletionResponseEventType.progress]) > 0
+    assert len(grouped[ChatCompletionResponseEventType.complete]) == 1
+
+    end = grouped[ChatCompletionResponseEventType.complete][0]
+    assert end.event.stop_reason == StopReason.end_of_turn
+
+
+@pytest.mark.asyncio
+async def test_chat_completion_with_tool_calling(
+    inference_settings,
+    sample_messages,
+    sample_tool_definition,
+):
+    inference_impl = inference_settings["impl"]
+    messages = sample_messages + [
+        UserMessage(
+            content="What's the weather like in San Francisco?",
+        )
+    ]
+
+    response = await inference_impl.chat_completion(
+        messages=messages,
+        tools=[sample_tool_definition],
+        stream=False,
+        **inference_settings["common_params"],
+    )
+
+    assert isinstance(response, ChatCompletionResponse)
+
+    message = response.completion_message
+
+    # This is not supported in most providers :/ they don't return eom_id / eot_id
+    # stop_reason = get_expected_stop_reason(inference_settings["common_params"]["model"])
+    # assert message.stop_reason == stop_reason
+    assert message.tool_calls is not None
+    assert len(message.tool_calls) > 0
+
+    call = message.tool_calls[0]
+    assert call.tool_name == "get_weather"
+    assert "location" in call.arguments
+    assert "San Francisco" in call.arguments["location"]
+
+
+@pytest.mark.asyncio
+async def test_chat_completion_with_tool_calling_streaming(
+    inference_settings,
+    sample_messages,
+    sample_tool_definition,
+):
+    inference_impl = inference_settings["impl"]
+    messages = sample_messages + [
+        UserMessage(
+            content="What's the weather like in San Francisco?",
+        )
+    ]
+
+    response = [
+        r
+        async for r in inference_impl.chat_completion(
+            messages=messages,
+            tools=[sample_tool_definition],
+            stream=True,
+            **inference_settings["common_params"],
+        )
+    ]
+
+    assert len(response) > 0
+    assert all(
+        isinstance(chunk, ChatCompletionResponseStreamChunk) for chunk in response
+    )
+    grouped = group_chunks(response)
+    assert len(grouped[ChatCompletionResponseEventType.start]) == 1
+    assert len(grouped[ChatCompletionResponseEventType.progress]) > 0
+    assert len(grouped[ChatCompletionResponseEventType.complete]) == 1
+
+    # This is not supported in most providers :/ they don't return eom_id / eot_id
+    # expected_stop_reason = get_expected_stop_reason(
+    #     inference_settings["common_params"]["model"]
+    # )
+    # end = grouped[ChatCompletionResponseEventType.complete][0]
+    # assert end.event.stop_reason == expected_stop_reason
+
+    model = inference_settings["common_params"]["model"]
+    if "Llama3.1" in model:
+        assert all(
+            isinstance(chunk.event.delta, ToolCallDelta)
+            for chunk in grouped[ChatCompletionResponseEventType.progress]
+        )
+        first = grouped[ChatCompletionResponseEventType.progress][0]
+        assert first.event.delta.parse_status == ToolCallParseStatus.started
+
+    last = grouped[ChatCompletionResponseEventType.progress][-1]
+    # assert last.event.stop_reason == expected_stop_reason
+    assert last.event.delta.parse_status == ToolCallParseStatus.success
+    assert isinstance(last.event.delta.content, ToolCall)
+
+    call = last.event.delta.content
+    assert call.tool_name == "get_weather"
+    assert "location" in call.arguments
+    assert "San Francisco" in call.arguments["location"]

llama_stack/providers/tests/inference/test_prompt_adapter.py

@@ -8,7 +8,7 @@ import unittest
 
 from llama_models.llama3.api import *  # noqa: F403
 from llama_stack.inference.api import *  # noqa: F403
-from llama_stack.inference.augment_messages import augment_messages_for_tools
+from llama_stack.inference.prompt_adapter import chat_completion_request_to_messages
 
 MODEL = "Llama3.1-8B-Instruct"
 
@@ -22,7 +22,7 @@ class PrepareMessagesTests(unittest.IsolatedAsyncioTestCase):
                 UserMessage(content=content),
             ],
         )
-        messages = augment_messages_for_tools(request)
+        messages = chat_completion_request_to_messages(request)
         self.assertEqual(len(messages), 2)
         self.assertEqual(messages[-1].content, content)
         self.assertTrue("Cutting Knowledge Date: December 2023" in messages[0].content)
@@ -39,7 +39,7 @@ class PrepareMessagesTests(unittest.IsolatedAsyncioTestCase):
                 ToolDefinition(tool_name=BuiltinTool.brave_search),
             ],
         )
-        messages = augment_messages_for_tools(request)
+        messages = chat_completion_request_to_messages(request)
         self.assertEqual(len(messages), 2)
         self.assertEqual(messages[-1].content, content)
         self.assertTrue("Cutting Knowledge Date: December 2023" in messages[0].content)
@@ -67,7 +67,7 @@ class PrepareMessagesTests(unittest.IsolatedAsyncioTestCase):
             ],
             tool_prompt_format=ToolPromptFormat.json,
         )
-        messages = augment_messages_for_tools(request)
+        messages = chat_completion_request_to_messages(request)
         self.assertEqual(len(messages), 3)
         self.assertTrue("Environment: ipython" in messages[0].content)
 
@@ -97,7 +97,7 @@ class PrepareMessagesTests(unittest.IsolatedAsyncioTestCase):
                 ),
             ],
         )
-        messages = augment_messages_for_tools(request)
+        messages = chat_completion_request_to_messages(request)
         self.assertEqual(len(messages), 3)
 
         self.assertTrue("Environment: ipython" in messages[0].content)
@@ -119,7 +119,7 @@ class PrepareMessagesTests(unittest.IsolatedAsyncioTestCase):
                 ToolDefinition(tool_name=BuiltinTool.code_interpreter),
             ],
         )
-        messages = augment_messages_for_tools(request)
+        messages = chat_completion_request_to_messages(request)
         self.assertEqual(len(messages), 2, messages)
         self.assertTrue(messages[0].content.endswith(system_prompt))
 

llama_stack/providers/tests/memory/__init__.py

@@ -0,0 +1,5 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.

llama_stack/providers/tests/memory/provider_config_example.yaml

@@ -0,0 +1,24 @@
+providers:
+  - provider_id: test-faiss
+    provider_type: meta-reference
+    config: {}
+  - provider_id: test-chroma
+    provider_type: remote::chroma
+    config:
+      host: localhost
+      port: 6001
+  - provider_id: test-remote
+    provider_type: remote
+    config:
+      host: localhost
+      port: 7002
+  - provider_id: test-weaviate
+    provider_type: remote::weaviate
+    config: {}
+# if a provider needs private keys from the client, they use the
+# "get_request_provider_data" function (see distribution/request_headers.py)
+# this is a place to provide such data.
+provider_data:
+  "test-weaviate":
+    weaviate_api_key: 0xdeadbeefputrealapikeyhere
+    weaviate_cluster_url: http://foobarbaz

llama_stack/providers/tests/memory/test_memory.py

@@ -0,0 +1,119 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.
+
+import pytest
+import pytest_asyncio
+
+from llama_stack.apis.memory import *  # noqa: F403
+from llama_stack.distribution.datatypes import *  # noqa: F403
+from llama_stack.providers.tests.resolver import resolve_impls_for_test
+
+# How to run this test:
+#
+# 1. Ensure you have a conda with the right dependencies installed. This is a bit tricky
+#    since it depends on the provider you are testing. On top of that you need
+#    `pytest` and `pytest-asyncio` installed.
+#
+# 2. Copy and modify the provider_config_example.yaml depending on the provider you are testing.
+#
+# 3. Run:
+#
+# ```bash
+# PROVIDER_ID=<your_provider> \
+#   PROVIDER_CONFIG=provider_config.yaml \
+#   pytest -s llama_stack/providers/tests/memory/test_memory.py \
+#   --tb=short --disable-warnings
+# ```
+
+
+@pytest_asyncio.fixture(scope="session")
+async def memory_impl():
+    impls = await resolve_impls_for_test(
+        Api.memory,
+        memory_banks=[],
+    )
+    return impls[Api.memory]
+
+
+@pytest.fixture
+def sample_documents():
+    return [
+        MemoryBankDocument(
+            document_id="doc1",
+            content="Python is a high-level programming language.",
+            metadata={"category": "programming", "difficulty": "beginner"},
+        ),
+        MemoryBankDocument(
+            document_id="doc2",
+            content="Machine learning is a subset of artificial intelligence.",
+            metadata={"category": "AI", "difficulty": "advanced"},
+        ),
+        MemoryBankDocument(
+            document_id="doc3",
+            content="Data structures are fundamental to computer science.",
+            metadata={"category": "computer science", "difficulty": "intermediate"},
+        ),
+        MemoryBankDocument(
+            document_id="doc4",
+            content="Neural networks are inspired by biological neural networks.",
+            metadata={"category": "AI", "difficulty": "advanced"},
+        ),
+    ]
+
+
+async def register_memory_bank(memory_impl: Memory):
+    bank = VectorMemoryBankDef(
+        identifier="test_bank",
+        embedding_model="all-MiniLM-L6-v2",
+        chunk_size_in_tokens=512,
+        overlap_size_in_tokens=64,
+    )
+
+    await memory_impl.register_memory_bank(bank)
+
+
+@pytest.mark.asyncio
+async def test_query_documents(memory_impl, sample_documents):
+    with pytest.raises(ValueError):
+        await memory_impl.insert_documents("test_bank", sample_documents)
+
+    await register_memory_bank(memory_impl)
+    await memory_impl.insert_documents("test_bank", sample_documents)
+
+    query1 = "programming language"
+    response1 = await memory_impl.query_documents("test_bank", query1)
+    assert_valid_response(response1)
+    assert any("Python" in chunk.content for chunk in response1.chunks)
+
+    # Test case 3: Query with semantic similarity
+    query3 = "AI and brain-inspired computing"
+    response3 = await memory_impl.query_documents("test_bank", query3)
+    assert_valid_response(response3)
+    assert any("neural networks" in chunk.content.lower() for chunk in response3.chunks)
+
+    # Test case 4: Query with limit on number of results
+    query4 = "computer"
+    params4 = {"max_chunks": 2}
+    response4 = await memory_impl.query_documents("test_bank", query4, params4)
+    assert_valid_response(response4)
+    assert len(response4.chunks) <= 2
+
+    # Test case 5: Query with threshold on similarity score
+    query5 = "quantum computing"  # Not directly related to any document
+    params5 = {"score_threshold": 0.5}
+    response5 = await memory_impl.query_documents("test_bank", query5, params5)
+    assert_valid_response(response5)
+    assert all(score >= 0.5 for score in response5.scores)
+
+
+def assert_valid_response(response: QueryDocumentsResponse):
+    assert isinstance(response, QueryDocumentsResponse)
+    assert len(response.chunks) > 0
+    assert len(response.scores) > 0
+    assert len(response.chunks) == len(response.scores)
+    for chunk in response.chunks:
+        assert isinstance(chunk.content, str)
+        assert chunk.document_id is not None

llama_stack/providers/tests/resolver.py

@@ -0,0 +1,100 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.
+
+import json
+import os
+from datetime import datetime
+
+import yaml
+
+from llama_stack.distribution.datatypes import *  # noqa: F403
+from llama_stack.distribution.configure import parse_and_maybe_upgrade_config
+from llama_stack.distribution.request_headers import set_request_provider_data
+from llama_stack.distribution.resolver import resolve_impls_with_routing
+
+
+async def resolve_impls_for_test(
+    api: Api,
+    models: List[ModelDef] = None,
+    memory_banks: List[MemoryBankDef] = None,
+    shields: List[ShieldDef] = None,
+):
+    if "PROVIDER_CONFIG" not in os.environ:
+        raise ValueError(
+            "You must set PROVIDER_CONFIG to a YAML file containing provider config"
+        )
+
+    with open(os.environ["PROVIDER_CONFIG"], "r") as f:
+        config_dict = yaml.safe_load(f)
+
+    if "providers" not in config_dict:
+        raise ValueError("Config file should contain a `providers` key")
+
+    providers_by_id = {x["provider_id"]: x for x in config_dict["providers"]}
+    if len(providers_by_id) == 0:
+        raise ValueError("No providers found in config file")
+
+    if "PROVIDER_ID" in os.environ:
+        provider_id = os.environ["PROVIDER_ID"]
+        if provider_id not in providers_by_id:
+            raise ValueError(f"Provider ID {provider_id} not found in config file")
+        provider = providers_by_id[provider_id]
+    else:
+        provider = list(providers_by_id.values())[0]
+        provider_id = provider["provider_id"]
+        print(f"No provider ID specified, picking first `{provider_id}`")
+
+    models = models or []
+    shields = shields or []
+    memory_banks = memory_banks or []
+
+    models = [
+        ModelDef(
+            **{
+                **m.dict(),
+                "provider_id": provider_id,
+            }
+        )
+        for m in models
+    ]
+    shields = [
+        ShieldDef(
+            **{
+                **s.dict(),
+                "provider_id": provider_id,
+            }
+        )
+        for s in shields
+    ]
+    memory_banks = [
+        MemoryBankDef(
+            **{
+                **m.dict(),
+                "provider_id": provider_id,
+            }
+        )
+        for m in memory_banks
+    ]
+    run_config = dict(
+        built_at=datetime.now(),
+        image_name="test-fixture",
+        apis=[api],
+        providers={api.value: [Provider(**provider)]},
+        models=models,
+        memory_banks=memory_banks,
+        shields=shields,
+    )
+    run_config = parse_and_maybe_upgrade_config(run_config)
+    impls = await resolve_impls_with_routing(run_config)
+
+    if "provider_data" in config_dict:
+        provider_data = config_dict["provider_data"].get(provider_id, {})
+        if provider_data:
+            set_request_provider_data(
+                {"X-LlamaStack-ProviderData": json.dumps(provider_data)}
+            )
+
+    return impls

llama_stack/providers/utils/inference/model_registry.py

@@ -0,0 +1,35 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.
+
+from typing import Dict
+
+from llama_models.sku_list import resolve_model
+
+from llama_stack.apis.models import *  # noqa: F403
+
+
+class ModelRegistryHelper:
+
+    def __init__(self, stack_to_provider_models_map: Dict[str, str]):
+        self.stack_to_provider_models_map = stack_to_provider_models_map
+
+    def map_to_provider_model(self, identifier: str) -> str:
+        model = resolve_model(identifier)
+        if not model:
+            raise ValueError(f"Unknown model: `{identifier}`")
+
+        if identifier not in self.stack_to_provider_models_map:
+            raise ValueError(
+                f"Model {identifier} not found in map {self.stack_to_provider_models_map}"
+            )
+
+        return self.stack_to_provider_models_map[identifier]
+
+    async def register_model(self, model: ModelDef) -> None:
+        if model.identifier not in self.stack_to_provider_models_map:
+            raise ValueError(
+                f"Unsupported model {model.identifier}. Supported models: {self.stack_to_provider_models_map.keys()}"
+            )

llama_stack/providers/utils/inference/openai_compat.py

@@ -0,0 +1,189 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.
+
+from typing import AsyncGenerator, Optional
+
+from llama_models.llama3.api.chat_format import ChatFormat
+
+from llama_models.llama3.api.datatypes import StopReason
+
+from llama_stack.apis.inference import *  # noqa: F403
+
+from pydantic import BaseModel
+
+
+class OpenAICompatCompletionChoiceDelta(BaseModel):
+    content: str
+
+
+class OpenAICompatCompletionChoice(BaseModel):
+    finish_reason: Optional[str] = None
+    text: Optional[str] = None
+    delta: Optional[OpenAICompatCompletionChoiceDelta] = None
+
+
+class OpenAICompatCompletionResponse(BaseModel):
+    choices: List[OpenAICompatCompletionChoice]
+
+
+def get_sampling_options(request: ChatCompletionRequest) -> dict:
+    options = {}
+    if params := request.sampling_params:
+        for attr in {"temperature", "top_p", "top_k", "max_tokens"}:
+            if getattr(params, attr):
+                options[attr] = getattr(params, attr)
+
+        if params.repetition_penalty is not None and params.repetition_penalty != 1.0:
+            options["repeat_penalty"] = params.repetition_penalty
+
+    return options
+
+
+def text_from_choice(choice) -> str:
+    if hasattr(choice, "delta") and choice.delta:
+        return choice.delta.content
+
+    return choice.text
+
+
+def process_chat_completion_response(
+    request: ChatCompletionRequest,
+    response: OpenAICompatCompletionResponse,
+    formatter: ChatFormat,
+) -> ChatCompletionResponse:
+    choice = response.choices[0]
+
+    stop_reason = None
+    if reason := choice.finish_reason:
+        if reason in ["stop", "eos"]:
+            stop_reason = StopReason.end_of_turn
+        elif reason == "eom":
+            stop_reason = StopReason.end_of_message
+        elif reason == "length":
+            stop_reason = StopReason.out_of_tokens
+
+    if stop_reason is None:
+        stop_reason = StopReason.out_of_tokens
+
+    completion_message = formatter.decode_assistant_message_from_content(
+        text_from_choice(choice), stop_reason
+    )
+    return ChatCompletionResponse(
+        completion_message=completion_message,
+        logprobs=None,
+    )
+
+
+async def process_chat_completion_stream_response(
+    request: ChatCompletionRequest,
+    stream: AsyncGenerator[OpenAICompatCompletionResponse, None],
+    formatter: ChatFormat,
+) -> AsyncGenerator:
+    yield ChatCompletionResponseStreamChunk(
+        event=ChatCompletionResponseEvent(
+            event_type=ChatCompletionResponseEventType.start,
+            delta="",
+        )
+    )
+
+    buffer = ""
+    ipython = False
+    stop_reason = None
+
+    async for chunk in stream:
+        choice = chunk.choices[0]
+        finish_reason = choice.finish_reason
+
+        if finish_reason:
+            if stop_reason is None and finish_reason in ["stop", "eos", "eos_token"]:
+                stop_reason = StopReason.end_of_turn
+            elif stop_reason is None and finish_reason == "length":
+                stop_reason = StopReason.out_of_tokens
+            break
+
+        text = text_from_choice(choice)
+        # check if its a tool call ( aka starts with <|python_tag|> )
+        if not ipython and text.startswith("<|python_tag|>"):
+            ipython = True
+            yield ChatCompletionResponseStreamChunk(
+                event=ChatCompletionResponseEvent(
+                    event_type=ChatCompletionResponseEventType.progress,
+                    delta=ToolCallDelta(
+                        content="",
+                        parse_status=ToolCallParseStatus.started,
+                    ),
+                )
+            )
+            buffer += text
+            continue
+
+        if text == "<|eot_id|>":
+            stop_reason = StopReason.end_of_turn
+            text = ""
+            continue
+        elif text == "<|eom_id|>":
+            stop_reason = StopReason.end_of_message
+            text = ""
+            continue
+
+        if ipython:
+            buffer += text
+            delta = ToolCallDelta(
+                content=text,
+                parse_status=ToolCallParseStatus.in_progress,
+            )
+
+            yield ChatCompletionResponseStreamChunk(
+                event=ChatCompletionResponseEvent(
+                    event_type=ChatCompletionResponseEventType.progress,
+                    delta=delta,
+                    stop_reason=stop_reason,
+                )
+            )
+        else:
+            buffer += text
+            yield ChatCompletionResponseStreamChunk(
+                event=ChatCompletionResponseEvent(
+                    event_type=ChatCompletionResponseEventType.progress,
+                    delta=text,
+                    stop_reason=stop_reason,
+                )
+            )
+
+    # parse tool calls and report errors
+    message = formatter.decode_assistant_message_from_content(buffer, stop_reason)
+    parsed_tool_calls = len(message.tool_calls) > 0
+    if ipython and not parsed_tool_calls:
+        yield ChatCompletionResponseStreamChunk(
+            event=ChatCompletionResponseEvent(
+                event_type=ChatCompletionResponseEventType.progress,
+                delta=ToolCallDelta(
+                    content="",
+                    parse_status=ToolCallParseStatus.failure,
+                ),
+                stop_reason=stop_reason,
+            )
+        )
+
+    for tool_call in message.tool_calls:
+        yield ChatCompletionResponseStreamChunk(
+            event=ChatCompletionResponseEvent(
+                event_type=ChatCompletionResponseEventType.progress,
+                delta=ToolCallDelta(
+                    content=tool_call,
+                    parse_status=ToolCallParseStatus.success,
+                ),
+                stop_reason=stop_reason,
+            )
+        )
+
+    yield ChatCompletionResponseStreamChunk(
+        event=ChatCompletionResponseEvent(
+            event_type=ChatCompletionResponseEventType.complete,
+            delta="",
+            stop_reason=stop_reason,
+        )
+    )