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Evan Mattson
317ef4491e
* Python: Fix hosted MCP replay producing orphan function_call_output Resolves part of #5546. After a turn ran a hosted MCP / Foundry-toolbox-MCP tool, the next turn's replayed input array carried a function_call_output with an mcp_* call_id and no matching function_call, and the Responses API returned a 400. Two layers covered here: * Chat-client serialize layer (packages/openai): adds mcp_server_tool_call and mcp_server_tool_result cases to _prepare_message_for_openai and _prepare_content_for_openai. Pairs are coalesced via a post-pass into a single mcp_call input item carrying both arguments and output. Orphan results are dropped (debug-logged) rather than serialized as orphan function_call_output, which is what the Responses API rejected. * Host read layer (packages/foundry_hosting): _item_to_message and _output_item_to_message now route custom_tool_call_output whose call_id.startswith("mcp_") to Content.from_mcp_server_tool_result. Non-mcp_ call_ids continue to produce Content.from_function_result. Symmetric with the host write-side choice for hosted-MCP results. Two further fixes (agentserver SDK additions, host write-side single-item emission) remain tracked on the issue and depend on an SDK release. * Python: Fix pyright unknown-type in _stringify_mcp_output cast(Sequence[Any], output) after the isinstance check so pyright stops flagging the loop variable as unknown. Also normalizes a couple of em-dashes in docstrings I introduced in the prior commit. * Python: Harden _stringify_mcp_output for dict-shaped MCP outputs Address Copilot review on PR #5581. Today the helper falls back to str() for any non-string, non-text-attribute entry, which produces Python repr (single-quoted dicts) for the canonical MCP raw-JSON text-content shape `{"type": "text", "text": "..."}` and any other dict-shaped output. Three small changes: * List-entry path: prefer plain string entries, then `.text` attribute (Content objects), then `entry["text"]` for Mapping entries in the canonical MCP shape, then JSON-encode anything else. * Final fallback: `json.dumps(output, default=str)` so Mappings and scalars produce valid JSON rather than Python repr. * Two new unit tests covering the dict-with-text shape and the non-text-dict JSON fallback. * Python: Suppress mypy redundant-cast on _stringify_mcp_output narrowing The cast is needed by pyright (reportUnknownVariableType) but mypy considers it redundant after the preceding isinstance narrowing. Pyright's behavior is correct for the strict-mode reporting we run, so keep the cast and silence mypy on the line.
317ef4491e
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