feat(ctx7): coverage extension — fast-libs single source + reminder hook + executor briefs (BDR-078)

- lib/fast-libs.sh: detect/cache-status verbs, JS+Python manifests,
  7-day cache freshness, LC_ALL=C sort — replaces 3 hardcoded lists
  (ship-feature 0c, init-project 5c, onboard 3.5)
- hooks/ctx7-reminder.sh: once-per-session UserPromptSubmit nudge when
  the project carries fast-libs and .ctx7-cache/ is missing/stale
- find-docs: before-writing-code trigger + cache-first rule; dist is
  machine-owned (gitignored) so the durable patch lives in
  install-plugins.sh STEP ctx7 (idempotent, grep-guarded)
- feater/bugfixer briefs: fast-lib docs rule (fresh cache read, else
  2-topic ctx7 fetch, else NOTES cache miss + proceed)
- tests: lib/tests/fast-libs.test.sh (11 checks); shellcheck + full
  make test green (review-guards 5/0)

.claude/memory/decisions.md

@@ -1061,3 +1061,7 @@ Reverses the BDR-066 rejected alternative "opus pins on audit agents (session-in
 
 ### BDR-077 — Model-tiering v2: 4-tier explicit routing, mode-based splits, no-inherit dispatches [accepted] (2026-07-19)
 Supersedes BDR-076 scope + amends BDR-066. Doctrine: session model (Fable) = main-loop reflection/orchestration/planning/logic ONLY; main-loop retention criteria = interactive | conversation-context access | orchestration decision | dispatch overhead > step cost. NOTHING dispatched inherits: typed agents = frontmatter pin, built-ins = `model=` at every call site (`fable` for skill-runner reflection children, else complexity tier). Spike+smoke proven: `model:"fable"` resolves claude-fable-5 (enum-validated, loud fail, no silent fallback); call-site override BEATS a typed pin (sonnet-pinned verifier ran haiku). Fail-safe pin rule: mixed-mode agents keep the HIGH tier as pin, overrides go DOWN — forgotten override over-tiers (cost), never downgrades judgment. Mode-based splits (commit-changer precedent generalized; file splits rejected): doc-syncer audit(opus)/patch(sonnet) — ALSO fixed a latent defect: /doc dispatched an agent whose STEP 8 interactive gate could never fire; gates hoisted to a DISPATCHER PROTOCOL section; handover-doc-writer synthesize(opus)/render(sonnet) via run-scoped `.audit/handover-draft-<RUNID>.md` + DRAFT COMPLETE sentinel; seo/geo collect(sonnet)/judge(OPUS PIN)/template(sonnet) via `.audit/*-signals-<RUNID>.md` + COLLECTION COMPLETE + fail-closed judge + dispatcher ERROR contract (mute/ERROR judge NEVER carried into templating; retry once, escalate). File split only for a genuinely new role: plugin-probe (sonnet, facts-only) + plugin-advisor repinned opus reasoner (fail-closed on missing PROBE REPORT) + lib/plugin-gate.md (checkpoint + apply gate, doc-commit ×N include pattern). Inline→dispatch conversions: scaffolder, onboarder, doc-commit steps ×5 flows — their sonnet pins were INERT since creation, now live; CHANGE SUMMARY crosses the doc dispatch into doc-commit (LRN-126 wire). Tier moves: validator-analyzer opus→sonnet (deterministic runner); commit-changer propose=opus/apply=pin; ship-feature/init-project code-review dispatches = opus explicit (WAS an inherit leak); client-handover-writer's 7 skill-runners = model:"fable". Every wave shipped an IN-WAVE planted-input smoke as its merge gate — all PASSED disk-verified. Census §12-18 (125 pass; one vacuous line-wrapped lock self-caught = LRN-093 live). 6 waves, branches feature/model-tiering-w1..w6, merged on user standing signal. Plan: challenged 3 blind lenses + 1 confirmation (1 BLOCKER closed by spike, 8 MAJORs + 8 MINORs closed by named changes, 0 deferred). Refs: `.claude/tasks/plans/2026-07-19-model-tiering-v2-{analysis,plan}.md`.
+
+### BDR-078 — ctx7 coverage: central fast-libs list + once-per-session reminder hook; every code path covered [accepted] (2026-07-20)
+Refines BDR-053 (single surface). Audit 2026-07-20: coverage PARTIAL — find-docs fired on user doc-questions only; ship-feature 0c / init-project 5c pre-fetched; /feat //bugfix executors + ad-hoc coding NEVER consulted ctx7; fast-libs list hardcoded 3× (drift risk). 4 closures shipped: (a) find-docs description += BEFORE-writing-code trigger (fast-moving lib, even without doc question, unless fresh cache) + cache-first rule in body (tee fetched docs to .ctx7-cache/); (b) feater+bugfixer briefs += fast-lib docs rule — read fresh `.ctx7-cache/<lib>*.md`, else `npx ctx7@latest` fetch max 2 topics, else `ctx7 cache miss: <lib>` in NOTES + proceed (executors lack Skill tool → Bash path); (c) hooks/ctx7-reminder.sh UserPromptSubmit — ONE fire/session (sentinel on session_id), only when project manifest carries fast-libs; reports cache state; skips <task-notification> turns; always exit 0; (d) lib/fast-libs.sh = SINGLE SOURCE (detect / cache-status verbs, JS package.json anchored full-key match + Python requirements/pyproject, 7-day freshness, LC_ALL=C sort locale-independent) consumed by hook + 3 pipeline skills + 2 briefs. 2nd session surface DELIBERATE, not a BDR-053 reversal: 053 killed a 490-tok ALWAYS-ON rule duplicate; hook costs ~0 quiet, 1 line once when fast-libs present. Alternatives rejected: PreToolUse Edit/Write gate (fires per-edit = noise); description-only fix (probabilistic, executors unreachable). Tests: lib/tests/fast-libs.test.sh 11 checks (anchored/near-miss/py/none, cache fresh/stale/missing, hook fire/sentinel/quiet×2); shellcheck + full make test green. Branch feature/ctx7-coverage, unmerged (human gate).
+Amendment (same session): skills/find-docs = machine-owned dist (gitignored, ctx7 regenerates on fresh clone) → durable copy of closure (a) lives in install-plugins.sh STEP ctx7 (idempotent grep-guarded python patch, fixture-verified); live SKILL.md carries the same edit uncommitted by design.

.claude/memory/journal.md

@@ -413,3 +413,6 @@ rules:
 ## 2026-07-19
 - BDR-076: dispatched judgment agents pinned opus (analyzer, plan-challenger, seo/geo/validator-analyzer + 6 onboard general-purpose dispatches); Fable now = inline orchestration/reflection only. interviewer + client-handover-writer left unpinned (inline-load, pin inert). Local opus-4-8 session pin dropped from settings.local.json. Census §11 added (61 pass), loops-light 35, make test green. feature/opus-pin-audit-agents, UNMERGED.
 - BDR-077 model-tiering v2 SHIPPED: 6 waves (W0 baseline merge → W1 no-inherit+fable skill-runners → W2 plugin split + doc two-mode + inert-pin conversions → W3 tier moves → W4 handover two-mode → W5 seo/geo 3-mode pipelines → W6 doctrine sweep). Plan challenged 4 passes (1 BLOCKER closed by fable spike). Per-wave planted-input smokes disk-verified. Census 125/0, make test green throughout. [[BDR-077]] [[LRN-137]].
+
+## 2026-07-20
+- ctx7 coverage audit (user ask "ctx7 appelé à chaque techno ?") → verdict PARTIAL. 4 gaps: find-docs question-only, /feat //bugfix executors blind, ad-hoc coding uncovered, fast-libs hardcoded 3×. All 4 closed → BDR-078 (fast-libs.sh single source + ctx7-reminder hook + description trigger + executor-brief rule). fast-libs test 11/0, make test + review-guards green. feature/ctx7-coverage, UNMERGED.

.claude/tasks/TODO.md

@@ -1,5 +1,25 @@
 # TODO
 
+## 2026-07-20 — ctx7 coverage extension (feature/ctx7-coverage, BDR-078)
+Close the 4 gaps from the ctx7 coverage audit: /feat //bugfix + ad-hoc coding
+never consult ctx7; fast-libs list hardcoded 3×; zero deterministic backstop.
+- [x] (d) `lib/fast-libs.sh` — single source of truth: `detect` +
+      `cache-status` verbs; JS (package.json exact/scoped keys) + Python;
+      7-day cache freshness. LC_ALL=C sort (locale-independent order).
+- [x] (c) `hooks/ctx7-reminder.sh` — UserPromptSubmit, once-per-session
+      sentinel, fires only when fast-libs detected; settings.json
+      registration (2nd ctx7 surface, deliberate refinement of BDR-053).
+- [x] (a) find-docs description — before-writing-code trigger (fast-moving
+      libs, even without a doc question) + cache-first rule in body.
+- [x] (b) feater.md + bugfixer.md — fast-lib docs rule (read fresh cache,
+      else ctx7 fetch max 2 topics, else NOTES cache miss + proceed).
+- [x] consumers → lib: ship-feature STEP 0c, init-project STEP 5c, onboard
+      STEP 3.5 detection blocks point at fast-libs.sh.
+- [x] `lib/tests/fast-libs.test.sh` (lib verbs + hook fire/sentinel/quiet)
+      — 11/0, auto-discovered by the make test glob.
+- [x] Gate: shellcheck + make test green (review-guards 5/0). BDR-078 +
+      journal + CHANGELOG done. Committed on branch, NO merge (human gate).
+
 ## 2026-07-19 — Opus-pin dispatched judgment agents (branch feature/opus-pin-audit-agents)
 
 Goal: session model (Fable) = orchestration + inline reflection ONLY.