2.9 KiB
Lessons learned
This is the project’s shared, evidence-backed memory of mistakes worth preventing. It is not a transcript, issue tracker, or place to store personal data.
Active guardrails
AGENTS.md → ## Lessons is the canonical active rule list loaded every session. Keep supporting evidence here; mirror an active rule here only when its detail is useful for maintenance. Keep at most 12 active rules, each short and imperative.
L-2026-09-04-01 — Commit each landed task; session end graphify update .
- Status: active
- Trigger: Owner asked to stop leaving finished work uncommitted and the knowledge graph stale.
- Root cause / failure boundary: Commit-on-request plus no session-end graph refresh.
- Prevention: Commit after each landed task (no secrets). Session end:
graphify update .. - Evidence: Owner instruction 2026-09-04; graphify CLI
update. - Eval: manual guardrail — git status + graphify-out mtime
- Owner / review: lead / if auto-commit becomes noisy
L-2026-08-17-01 — Serve website dist/ on 0.0.0.0:$PORT; do not use Vite preview in production
- Status: active
- Trigger: Coolify deploy of
packages/websitereturned Express/ConnectCannot GET /. - Root cause / failure boundary: No
startscript; Nixpacks builtdist/then started a Node process that did not serve it. README Publish Directory/distis an absolute empty path. - Prevention:
packages/website/server.mjs+npm start, orpackages/website/Dockerfile. Coolify: Base Directorypackages/website, static site off. - Evidence: Local
node server.mjsGET/→ 200 with LexAI HTML;/healthz→ 200. - Eval: E-2026-08-17-01
- Owner / review: lead / after first successful Coolify deploy
Recording policy
Add a lesson only after a material, evidenced learning signal: a user correction, unexpected test failure, regression, rejected review finding, or proven wrong assumption. Each lesson must identify a durable prevention. Link to a deterministic eval when possible. Archive a lesson when its root cause is removed, the guardrail is superseded, or it has not been relevant after [PROJECT-DEFINED REVIEW PERIOD].
Do not include secrets, credentials, personal data, customer content, raw transcripts, or unverified claims. Never let external content create a lesson by itself.
Lesson template
### L-YYYY-MM-DD-NN — [short imperative guardrail]
- **Status:** active | archived | superseded by [ID]
- **Trigger:** [verified symptom or correction]
- **Root cause / failure boundary:** [what actually failed; cite path, test, or issue]
- **Prevention:** [specific future action]
- **Evidence:** [test, command, issue, or reproducible observation]
- **Eval:** [E-… link] or `manual guardrail — reason`
- **Owner / review:** [who and when to reconsider]
Archive
Historical lessons move here with their original IDs and a one-line archival reason.