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alt-glitch
added
type/bug
This was referenced Aug 17, 2026
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Intent
Keep one tool-level validation or business error from disabling every tool on an otherwise healthy MCP server.
Behavior
A completed
tools/callRPC now closes the server transport breaker even when the MCP result hasisError=true. Missing sessions and raised transport exceptions retain the existing breaker behavior.Verification
scripts/run_tests.sh tests/tools/test_mcp_circuit_breaker.py -q(8 passed)scripts/run_tests.sh tests/tools/test_mcp_tool.py tests/tools/test_mcp_tool_session_expired.py -q(103 passed)