* feat(continuous-learning-v2): make observer model configurable via ECC_OBSERVER_MODEL
The observer hardcoded `--model haiku`. Parameterize as "${ECC_OBSERVER_MODEL:-haiku}": the haiku default is preserved (no behavior change for existing users), but users can opt into a stronger model — e.g. `ECC_OBSERVER_MODEL=opus` — for higher-quality instinct extraction. Useful on subscription plans where model cost isn't the limiting factor.
* fix(continuous-learning-v2): address review — update wiring test + docs
- Update source-inspection test to assert the ${ECC_OBSERVER_MODEL:-haiku} defaulting behavior (was matching the literal `claude --model haiku`, which this PR changed). All 31 tests pass.
- Add guidance to raise ECC_OBSERVER_TIMEOUT_SECONDS for slower models (e.g. opus) so the 120s watchdog doesn't kill analysis mid-run.
- Fix now-stale 'Haiku session' comment -> 'observer session' (model is configurable).
- Remove prompt_file immediately after shell expansion into -p arg,
avoiding stale temp files during long analysis windows (greptile feedback)
- Update test assertion to check analysis_relpath instead of analysis_file,
matching the cross-platform relative path change from earlier commits
Signed-off-by: Lidang-Jiang <lidangjiang@gmail.com>
The observer's Haiku subprocess cannot access files outside the project
sandbox (/tmp/ for observations, ~/.claude/homunculus/ for instincts).
Adding --allowedTools "Read,Write" grants the necessary file access
while keeping the subprocess constrained by --max-turns and timeout.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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
