chore(memory): BDR-001 won't-build + LRN-080 + TODO requalify (--help measured non-rentable)

--help chantier ABANDONED after measurement (not built — nothing to build):
- BDR-001 append (won't-build 2026-06-30): behavioral RED, 6 reps (/web-validate
  + /harden, no instruction) → 6/6 already render help AND stop without dispatch;
  residual value = format consistency only → ROI insufficient on a solo repo.
  Original Decision/Why/Rejected intact (append-only); Index status cell updated.
- LRN-080: measure if the model already does X before adding an instruction to
  make it do X — the behavioral RED kills phantom-value additions. Links LRN-075.
- TODO: chantier requalified WON'T-BUILD (3rd state — not done, not open).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01C6bUdvHnajCNzgVQefZowj

.claude/memory/decisions.md

@@ -22,7 +22,7 @@ rules:
 
 | ID | Date | Title | Status |
 |----|------|-------|--------|
-| BDR-001 | 2026-04-22 | Uniform --help helper via session-start hook (option C) | accepted |
+| BDR-001 | 2026-04-22 | Uniform --help helper via session-start hook (option C) | accepted · won't-build 2026-06-30 |
 | BDR-002 | 2026-04-23 | Move tasks/ + introduce memory + audits under .claude/ | accepted |
 | BDR-003 | 2026-04-23 | Gitignore wildcard + negations pattern for .claude/ | accepted |
 | BDR-004 | 2026-04-27 | Adopt auto permission mode as default | accepted |
@@ -77,6 +77,7 @@ rules:
   - Option A (copy helper into each SKILL.md) — rejected: maintenance entropy.
   - Option B (external wrapper `/help <skill>`) — rejected: breaks "one command = one skill" experience.
 - **Reference**: commit 3968a29.
+- **Won't-build (2026-06-30)**: accepted but never built. MEASURED before building — behavioral RED, 6 reps (`/web-validate` + `/harden`, no instruction): **6/6 already render rich help AND stop without dispatching** (even `/harden` didn't start its audit). The intended behavior is already spontaneous (universal `--help` convention); the ONLY residual value of the global instruction = format CONSISTENCY across 6 divergent shapes — judged not worth ~5 lines in a [[BDR-031]]-compressed CLAUDE.md on a solo repo. Not "abandoned" — measured non-rentable. Per-skill option stays rejected (original Decision above). See [[LRN-080]], [[LRN-075]].
 
 ## BDR-002 — Move tasks/ + introduce memory + audits under .claude/
 

.claude/memory/learnings.md

@@ -99,6 +99,7 @@ rules:
 | LRN-077 | 2026-06-30 | test fixtures must carry NEUTRAL names — a name that telegraphs the answer lets the subject pass by reading the name, not doing the work | designing any test fixture/path; same symptom as [[LRN-074]] (passes for WRONG reason), distinct cause (leaky fixture vs assumed command) |
 | LRN-078 | 2026-06-30 | semver number DERIVES from the change nature, not "justify a target"; solo-repo "breaking" = requires a migration of own usage; a removal nothing invokes = Removed not breaking | choosing a release version; classifying MAJOR/MINOR/PATCH; deciding if a removal is breaking |
 | LRN-079 | 2026-06-30 | orchestrator-skill TDD = replay the prescribed flow on a throwaway repo (gitflow-test style): RED runs the flow minus the new step → the outcome assertion reds on the gap | testing a skill that orchestrates an existing mechanic + one new step |
+| LRN-080 | 2026-06-30 | before adding an instruction "to make the model do X", measure if it ALREADY does X — universal conventions (--help…) it often does; the behavioral RED can KILL the chantier (phantom value) | proposing any global instruction to elicit a behavior; CLAUDE.md additions |
 
 ---
 
@@ -873,3 +874,9 @@ rules:
 - **Date**: 2026-06-30
 - **pattern**: a thin orchestrator skill (composes an existing tested mechanic + ONE new step) is not unit-testable as a function, but its FLOW is testable by replay on a throwaway repo (gitflow-test style). RED = run the prescribed sequence WITHOUT the new step (the existing mechanic alone) and assert the desired outcome → it reds on exactly the gap. GREEN = add the step. For `/release-candidate`: `gitflow start release`→prep→`finish` (no tag) → assert `vX.Y.Z` on main → REDS (gitflow fans out but never tags); add `git tag` → 5/5. Teeth: the single toggled line (`RC_TAG`) flips red↔green so GREEN can't pass by accident.
 - **future application**: for any orchestrator over a lib mechanic, test the END-TO-END flow on a disposable repo; isolate the NEW step so the RED reds precisely on it (don't re-test the lib's generic part — it has its own tests).
+
+## LRN-080 — measure whether the model already does X before adding an instruction to make it do X
+- **Date**: 2026-06-30
+- **pattern**: the --help chantier (implement [[BDR-001]] as a global CLAUDE.md instruction "on --help → render help + stop") was KILLED by its behavioral RED. Before writing a line, measured the control (6 reps, `/web-validate` + `/harden`, no instruction): **6/6 already rendered rich help AND stopped without dispatching** — the supposedly-absent behavior was fully present. Residual value = format consistency across 6 divergent shapes → not worth ~5 lines in a compressed CLAUDE.md on a solo repo. A phantom-value addition avoided.
+- **why it matters**: [[LRN-075]] (test the UNGUIDED control) paying off one chantier later — measuring the RED before building is what caught it. For UNIVERSAL conventions the model already honors (--help, common flags, standard shapes), a "teach it to do X" instruction buys nothing but tokens; the only thing left to buy is consistency, which must clear its own ROI bar.
+- **future application**: before adding any global instruction to ELICIT a behavior, run the behavioral control first — does the model already do it unaided? If yes, the only remaining value is standardization; price it honestly vs the cost (esp. a compressed CLAUDE.md). Often: don't add it.

.claude/tasks/TODO.md

@@ -131,8 +131,8 @@ Subtasks :
 - [x] Patcher `lib/design-gate.md` — ajouter motion/motion-v/framer-motion + autres anim-libs dans filesystem signals
 - [x] Tester : shellcheck OK ; matrix React/Vue/RN/backend/with-motion/no-package/pnpm tous corrects
 
-## Helper `--help` / `help` sur tous les skills (option C)
+## Helper `--help` / `help` sur tous les skills (option C) [WON'T-BUILD 2026-06-30 — mesuré non-rentable]
-> ⚠️ BLOQUÉ (reconcile 2026-06-29) : contredit BDR-001 (accepted) qui a REJETÉ "copier le helper dans chaque SKILL.md" (maintenance entropy) au profit d'un hook session-start. Or ce chantier planifie STEP 0.5 par SKILL.md. Le TODO note lui-même "aucun skill ne gère --help aujourd'hui" → la voie hook de BDR-001 n'a jamais produit de --help fonctionnel. TRANCHER d'abord : BDR-001 périmé → marquer superseded, OU repasser par le hook. Ne pas lancer avant résolution.
+> ⛔ WON'T-BUILD (2026-06-30) : ABANDON tranché après mesure. RED comportemental (6 reps, /web-validate + /harden, SANS instruction) → **6/6 rendent déjà une aide riche ET s'arrêtent sans dispatcher** (même /harden n'a pas lancé l'audit). Le comportement supposé absent est déjà spontané (convention universelle --help). Seule valeur résiduelle = cohérence de format (6 formats divergents) → ROI insuffisant pour ~5 lignes dans un CLAUDE.md compressé ([[BDR-031]]) sur repo mono-user. 3e état : NON "fait" (rien construit), NON "ouvert" (on ne le fera pas). L'option globale réalisait l'intention BDR-001 ; per-skill toujours rejeté. Voir [[BDR-001]] (won't-build), [[LRN-080]], [[LRN-075]]. Design + subtasks ci-dessous = historique, non actionnables.
 Problème : aucun skill ne gère `--help` aujourd'hui. `argument-hint` affiche juste la syntaxe en autocomplétion, pas de description/exemples. L'utilisateur doit lire le SKILL.md ou deviner.
 
 Objectif : `/<skill> --help` (ou `/<skill> help`) affiche un bloc standardisé (description, args, exemples, cross-refs) et exit SANS dispatcher l'agent ni modifier quoi que ce soit.