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chore(memory): LRN-073/074 + EVAL-010 — prune-memory chantier close

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- LRN-073 — a skill's worked-example must use FICTIONAL ids, never live registry
  ids (they prime real-data behavior). The RED-7 root-cause lesson.
- LRN-074 — system grep/awk may be ugrep/mawk: don't assume flag-parsing, use
  /usr/bin/grep, watch the RED go red. 4th command-assumption miss this session →
  engraved as a recurring pattern-family (alongside fail-silent LRN-066/071).
- EVAL-010 — prune-memory hardening: RED-7 deterministic fix + RED-8 accept +
  34-row backfill; anomalies incl the real-time false-green catch and the near-
  collision with the existing EVAL-009 (caught by reading first).
- journal 2026-06-29 (cont. 3) + TODO chantier section; BLK-011 finish/push marked.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01C6bUdvHnajCNzgVQefZowj
This commit is contained in:
Bastien Chanot
2026-06-29 19:29:15 +02:00
co-authored by Claude Opus 4.8
parent 80a21d050f
commit d7f76fcb45
4 changed files with 37 additions and 2 deletions
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@@ -234,4 +234,11 @@ rules:
## 2026-06-29 (cont. 2) — BLK-011 resolved by REMOVAL (init-project GSD bootstrap)
- User challenge reframed the chantier: don't plumb a commit for the stranded ROADMAP — ask if gsd belongs at init AT ALL. Read REFUTED both my option-premises (gsd ≫ roadmap; TODO ≠ gsd ROADMAP) but conclusion A (remove STEP 12) held for a STRONGER reason: speculative auto-bootstrap of an unused multi-session engine at creation is bad per se. Best fix = NEGATIVE diff ([[LRN-072]]).
- Removed init-project STEP 12 (+ header 12→11-step, 10c note, 4 USAGE coherence fixes). Coherence sweep = zero dangling STEP-12 refs (the "test" for a removal). Deliberate gsd use KEPT (onboarder PHASE 6, plugin-advisor, status-reporter). [[BLK-011]] → resolved.
- Branch `bugfix/blk-011-gsd-roadmap`; no finish yet (awaiting signal).
- Branch `bugfix/blk-011-gsd-roadmap`; FINISHED → develop (`ce4391a`) on explicit signal; pushed develop to origin (6 commits, SSH).
## 2026-06-29 (cont. 3) — prune-memory hardening (RED-7/8 + index backfill)
- Read-first cartography (confirmed my own measurements). RED-7 (example-priming): the STEP-2 example named live LRN-014+016 and modeled merging them — verified COMPLEMENTARY, a merge the skill forbids. Fix = fictionalize example to 9xx + DETERMINISTIC test ([[LRN-046]], not flaky behavioral). [[LRN-073]].
- RED-7 test caught its OWN false-green in real time: ugrep parsed `-9..` as an option → empty → green; fixed via /usr/bin/grep. 4th command-assumption miss this session → [[LRN-074]] (2nd engraved pattern-family, alongside fail-silent [[LRN-066]]/[[LRN-071]]).
- RED-8 (added-negation): consciously ACCEPTED as documented limit ([[LRN-047]] — FP-prone guard worse than honest limit on a destructive skill).
- Index backfill: 34 missing rows (decisions 11, learnings 21, blockers 2) composed + ID-sorted insert; drift 34→0, STEP-4 verify OK. Re-read the 5 awk-missed Applies-to → 4 corrected a nuance the title dropped. Moved pre-existing out-of-order LRN-021. [[EVAL-010]].
- Branch `bugfix/prune-memory-hardening`; no finish yet (awaiting signal). LAST of 3 chantiers.