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fix(tools): do not index tools, only index toolgroups (#2261)

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When registering a MCP endpoint, we cannot list tools (like we used to)
since the MCP endpoint may be behind an auth wall. Registration can
happen much sooner (via run.yaml).

Instead, we do listing only when the _user_ actually calls listing.
Furthermore, we cache the list in-memory in the server. Currently, the
cache is not invalidated -- we may want to periodically re-list for MCP
servers. Note that they must call `list_tools` before calling
`invoke_tool` -- we use this critically.

This will enable us to list MCP servers in run.yaml

## Test Plan

Existing tests, updated tests accordingly.
This commit is contained in:
Ashwin Bharambe 2025-05-25 13:27:52 -07:00 • committed by GitHub
parent 5a422e236c
commit ce33d02443
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GPG key ID: B5690EEEBB952194
19 changed files with 131 additions and 153 deletions
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10
llama_stack/providers/inline/tool_runtime/rag/memory.py
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@ -25,14 +25,14 @@ from llama_stack.apis.tools import (
RAGQueryConfig,
RAGQueryResult,
RAGToolRuntime,
Tool,
ToolDef,
ToolGroup,
ToolInvocationResult,
ToolParameter,
ToolRuntime,
)
from llama_stack.apis.vector_io import QueryChunksResponse, VectorIO
from llama_stack.providers.datatypes import ToolsProtocolPrivate
from llama_stack.providers.datatypes import ToolGroupsProtocolPrivate
from llama_stack.providers.utils.inference.prompt_adapter import interleaved_content_as_str
from llama_stack.providers.utils.memory.vector_store import (
content_from_doc,
@ -49,7 +49,7 @@ def make_random_string(length: int = 8):
return "".join(secrets.choice(string.ascii_letters + string.digits) for _ in range(length))
class MemoryToolRuntimeImpl(ToolsProtocolPrivate, ToolRuntime, RAGToolRuntime):
class MemoryToolRuntimeImpl(ToolGroupsProtocolPrivate, ToolRuntime, RAGToolRuntime):
def __init__(
self,
config: RagToolRuntimeConfig,
@ -66,10 +66,10 @@ class MemoryToolRuntimeImpl(ToolsProtocolPrivate, ToolRuntime, RAGToolRuntime):
async def shutdown(self):
pass
async def register_tool(self, tool: Tool) -> None:
async def register_toolgroup(self, toolgroup: ToolGroup) -> None:
pass
async def unregister_tool(self, tool_id: str) -> None:
async def unregister_toolgroup(self, toolgroup_id: str) -> None:
return
async def insert(