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agents to use tools api (#673)

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# What does this PR do?

PR #639 introduced the notion of Tools API and ability to invoke tools
through API just as any resource. This PR changes the Agents to start
using the Tools API to invoke tools. Major changes include:
1) Ability to specify tool groups with AgentConfig
2) Agent gets the corresponding tool definitions for the specified tools
and pass along to the model
3) Attachements are now named as Documents and their behavior is mostly
unchanged from user perspective
4) You can specify args that can be injected to a tool call through
Agent config. This is especially useful in case of memory tool, where
you want the tool to operate on a specific memory bank.
5) You can also register tool groups with args, which lets the agent
inject these as well into the tool call.
6) All tests have been migrated to use new tools API and fixtures
including client SDK tests
7) Telemetry just works with tools API because of our trace protocol
decorator


## Test Plan
```
pytest -s -v -k fireworks llama_stack/providers/tests/agents/test_agents.py  \
   --safety-shield=meta-llama/Llama-Guard-3-8B \
   --inference-model=meta-llama/Llama-3.1-8B-Instruct

pytest -s -v -k together  llama_stack/providers/tests/tools/test_tools.py \
   --safety-shield=meta-llama/Llama-Guard-3-8B \
   --inference-model=meta-llama/Llama-3.1-8B-Instruct

LLAMA_STACK_CONFIG="/Users/dineshyv/.llama/distributions/llamastack-together/together-run.yaml" pytest -v tests/client-sdk/agents/test_agents.py
```
run.yaml:
https://gist.github.com/dineshyv/0365845ad325e1c2cab755788ccc5994

Notebook:
https://colab.research.google.com/drive/1ck7hXQxRl6UvT-ijNRZ-gMZxH1G3cN2d?usp=sharing
This commit is contained in:
Dinesh Yeduguru 2025-01-08 19:01:00 -08:00 • committed by GitHub
parent 596afc6497
commit a5c57cd381
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116 changed files with 4959 additions and 2778 deletions
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4
llama_stack/distribution/resolver.py
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@ -5,9 +5,7 @@
# the root directory of this source tree.
import importlib
import inspect
import logging
from typing import Any, Dict, List, Set
from llama_stack.apis.agents import Agents
@ -28,7 +26,6 @@ from llama_stack.apis.shields import Shields
from llama_stack.apis.telemetry import Telemetry
from llama_stack.apis.tools import ToolGroups, ToolRuntime
from llama_stack.distribution.client import get_client_impl
from llama_stack.distribution.datatypes import (
AutoRoutedProviderSpec,
Provider,
@ -38,7 +35,6 @@ from llama_stack.distribution.datatypes import (
from llama_stack.distribution.distribution import builtin_automatically_routed_apis
from llama_stack.distribution.store import DistributionRegistry
from llama_stack.distribution.utils.dynamic import instantiate_class_type
from llama_stack.providers.datatypes import (
Api,
DatasetsProtocolPrivate,