feat(wave): wave_wait_for_signal MCP tool — sanctioned anxiety outlet#419
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Sanctioned idle-wait tool for wave-pattern Orchestrators (and Primes)
blocking on filesystem-bus completion artifacts. Polls signal_path
every 5s until min_count matches exist or timeout_sec elapses. Accepts
literal paths or Bun.Glob patterns. Returns matched paths + elapsed_sec
on success, or timed_out + partial_matches on timeout.
Replaces ad-hoc Bash(sleep) loops and the agent-anxiety failure mode
where idle loops are exited prematurely (pattern_sanctioned_fidget_tool).
- handlers/wave_wait_for_signal.ts — handler with __runWithDeps test seam
- tests/wave_wait_for_signal.test.ts — schema + matchSignal + loop semantics
- tests/integration/orchestrator-wait-on-flights.test.ts — real-fs scenario
- docs/tools.md — per-tool reference (seeded)
- docs/wave-pattern-orchestration.md — canonical Orchestrator-wait example
Implementation uses Bun.Glob (not node:fs) to remain immune to
mock.module('fs') leakage from sibling tests
(lesson_bun_native_apis.md).
Closes #414
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Implements
wave_wait_for_signalMCP tool per mcp-server-sdlc#414.Sanctioned-fidget tool for idle wave-pattern Orchestrators waiting on filesystem-bus artifacts. Polls signal_path with 5s sleep, returns when min_count matches reached or timeout fires.
Closes #414
Wave 4a / Flight 1 of Plan #607 (Beta).