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Ran 27 Apr 2026 12:50PM UTC

Files 288

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Committed 27 Apr 2026 12:47PM UTC coverage: 19.499% (+0.005%) from 19.494%

Job # 24995864733.18

Build Type

push

github

Committed by

web-flow

Commit Message

fix(daemon): preserve in-process MCP servers across runtime mutations (Task #140) (#1664)

Implements P0+P1 fixes from docs/research/node-agent-mcp-loss-root-cause.md
so node agents stop losing their handoff tools mid-turn.

- Renames AgentSession.setRuntimeMcpServers to replaceAllRuntimeMcpServers
  and converts the remaining production callers (NeoAgentManager,
  RoomRuntimeService) to mergeRuntimeMcpServers, eliminating the
  replace-all races that silently dropped concurrent SDK servers.
- Adds a structured mcp.attach telemetry log emitted by every runtime
  merge/detach/replace, joinable on sessionId/spaceId/taskId so MCP
  loss regressions can be reconstructed from logs alone.
- Promotes the query-runner mcpServers debug line to a query.mcp.snapshot
  payload that includes sessionType + workflow sub-session metadata.
- Adds tests for config.mcp.* in-process preservation, reinject query
  restart, session-reuse node-agent rebuild, and the mcp.attach payload
  shape. Updates affected mock sessions to expose mergeRuntimeMcpServers.

Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>

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