llama-stack-mirror/llama_toolchain/agentic_system/meta_reference/safety.py
Ashwin Bharambe e830814399
Introduce Llama stack distributions (#22)
* Add distribution CLI scaffolding

* More progress towards `llama distribution install`

* getting closer to a distro definition, distro install + configure works

* Distribution server now functioning

* read existing configuration, save enums properly

* Remove inference uvicorn server entrypoint and llama inference CLI command

* updated dependency and client model name

* Improved exception handling

* local imports for faster cli

* undo a typo, add a passthrough distribution

* implement full-passthrough in the server

* add safety adapters, configuration handling, server + clients

* cleanup, moving stuff to common, nuke utils

* Add a Path() wrapper at the earliest place

* fixes

* Bring agentic system api to toolchain

Add adapter dependencies and resolve adapters using a topological sort

* refactor to reduce size of `agentic_system`

* move straggler files and fix some important existing bugs

* ApiSurface -> Api

* refactor a method out

* Adapter -> Provider

* Make each inference provider into its own subdirectory

* installation fixes

* Rename Distribution -> DistributionSpec, simplify RemoteProviders

* dict key instead of attr

* update inference config to take model and not model_dir

* Fix passthrough streaming, send headers properly not part of body :facepalm

* update safety to use model sku ids and not model dirs

* Update cli_reference.md

* minor fixes

* add DistributionConfig, fix a bug in model download

* Make install + start scripts do proper configuration automatically

* Update CLI_reference

* Nuke fp8_requirements, fold fbgemm into common requirements

* Update README, add newline between API surface configurations

* Refactor download functionality out of the Command so can be reused

* Add `llama model download` alias for `llama download`

* Show message about checksum file so users can check themselves

* Simpler intro statements

* get ollama working

* Reduce a bunch of dependencies from toolchain

Some improvements to the distribution install script

* Avoid using `conda run` since it buffers everything

* update dependencies and rely on LLAMA_TOOLCHAIN_DIR for dev purposes

* add validation for configuration input

* resort imports

* make optional subclasses default to yes for configuration

* Remove additional_pip_packages; move deps to providers

* for inline make 8b model the default

* Add scripts to MANIFEST

* allow installing from test.pypi.org

* Fix #2 to help with testing packages

* Must install llama-models at that same version first

* fix PIP_ARGS

---------

Co-authored-by: Hardik Shah <hjshah@fb.com>
Co-authored-by: Hardik Shah <hjshah@meta.com>
2024-08-08 13:38:41 -07:00

65 lines
2.2 KiB
Python

# 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 List
from llama_models.llama3_1.api.datatypes import Message, Role
from llama_toolchain.safety.api.datatypes import (
OnViolationAction,
ShieldDefinition,
ShieldResponse,
)
from llama_toolchain.safety.api.endpoints import RunShieldRequest, Safety
from termcolor import cprint
class SafetyException(Exception): # noqa: N818
def __init__(self, response: ShieldResponse):
self.response = response
super().__init__(response.violation_return_message)
class ShieldRunnerMixin:
def __init__(
self,
safety_api: Safety,
input_shields: List[ShieldDefinition] = None,
output_shields: List[ShieldDefinition] = None,
):
self.safety_api = safety_api
self.input_shields = input_shields
self.output_shields = output_shields
async def run_shields(
self, messages: List[Message], shields: List[ShieldDefinition]
) -> List[ShieldResponse]:
# some shields like llama-guard require the first message to be a user message
# since this might be a tool call, first role might not be user
if len(messages) > 0 and messages[0].role != Role.user.value:
# TODO(ashwin): we need to change the type of the message, this kind of modification
# is no longer appropriate
messages[0].role = Role.user.value
res = await self.safety_api.run_shields(
RunShieldRequest(
messages=messages,
shields=shields,
)
)
results = res.responses
for shield, r in zip(shields, results):
if r.is_violation:
if shield.on_violation_action == OnViolationAction.RAISE:
raise SafetyException(r)
elif shield.on_violation_action == OnViolationAction.WARN:
cprint(
f"[Warn]{shield.__class__.__name__} raised a warning",
color="red",
)
return results