Add MCP tool call error metrics#28976
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Codex Thread 019edc37-5345-7272-92c9-bf5494cf3819
Summary
CallToolResult.isErrorresponses as failed calls instead of successful transport-level callscodex.mcp.call.errorwith boundederror_typeand trusted plugin-serviceerror_codedimensionsScope
mcp_request; separating connection, timeout, protocol, and JSON-RPC failures requires preserving typed errors through the existing flattened error boundaryTesting
just test -p codex-core 'mcp_tool_call::tests::'(75 passed)just fix -p codex-corejust fmtjust test -p codex-core(2,676 passed; 80 unrelated environment failures from missing test binaries, sandbox signals, and read-only paths)