1 Commits

• fix: observer memory explosion with throttling, re-entrancy guard, and tail sampling (#536)

  Three fixes for the positive feedback loop causing runaway memory usage:
  
  1. SIGUSR1 throttling in observe.sh: Signal observer only every 20
     observations (configurable via ECC_OBSERVER_SIGNAL_EVERY_N) instead
     of on every tool call. Uses a counter file to track invocations.
  
  2. Re-entrancy guard in observer-loop.sh on_usr1(): ANALYZING flag
     prevents parallel Claude analysis processes from spawning when
     signals arrive while analysis is already running.
  
  3. Cooldown + tail-based sampling in observer-loop.sh:
     - 60s cooldown between analyses (ECC_OBSERVER_ANALYSIS_COOLDOWN)
     - Only last 500 lines sent to LLM (ECC_OBSERVER_MAX_ANALYSIS_LINES)
       instead of the entire observations file
  
  Closes #521

  Affaan Mustafa · 2026-03-16 13:47:25 -07:00
  f9e8287346