llama-stack-mirror/llama_stack/providers
Sumanth Kamenani 55a8c5f439
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fix: show descriptive MCP server connection errors instead of generic 500s (#3256)
What does this PR do?

Fixes error handling when MCP server connections fail. Instead of
returning generic 500 errors, now provides
   descriptive error messages with proper HTTP status codes.

  Closes #3107

  Test Plan

  Before fix:
curl -X GET
"http://localhost:8321/v1/tool-runtime/list-tools?tool_group_id=bad-mcp-server"
Returns: {"detail": "Internal server error: An unexpected error
occurred."} (500)

  After fix:
curl -X GET
"http://localhost:8321/v1/tool-runtime/list-tools?tool_group_id=bad-mcp-server"
Returns: {"error": {"detail": "Failed to connect to MCP server at
http://localhost:9999/sse: Connection
  refused"}} (502)

  Tests:
  - Added unit test for ConnectionError → 502 translation
  - Manually tested with unreachable MCP servers (connection refused)
2025-09-04 13:25:02 -07:00
..
inline refactor: use generic WeightedInMemoryAggregator for hybrid search in SQLiteVecIndex (#3303) 2025-09-02 10:38:35 -07:00
registry fix: Move to older version for docker container failure [fireworks-ai] (#3338) 2025-09-04 11:47:46 -07:00
remote feat(tests): auto-merge all model list responses and unify recordings (#3320) 2025-09-03 11:33:03 -07:00
utils fix: show descriptive MCP server connection errors instead of generic 500s (#3256) 2025-09-04 13:25:02 -07:00
__init__.py API Updates (#73) 2024-09-17 19:51:35 -07:00
datatypes.py feat: create unregister shield API endpoint in Llama Stack (#2853) 2025-08-05 07:33:46 -07:00