chore(memory): BDR-083 + LRN-141/142 + journal + CHANGELOG + TODO W0-W8

BDR-083 records what was taken from unlazy and, more usefully, what was
refused and why. LRN-141: an external skill's machinery encodes its threat
model, not yours — take the invariants, refuse the machinery. LRN-142:
structure locks are fixed-string, so reflowing a doctrine paragraph reds
them; fix the doc, not the lock.

.claude/memory/learnings.md

@@ -1368,3 +1368,13 @@ rules:
 - **pattern 3 — de-prescription does NOT depress recall**: reworded collect caught  -encoded phone AT COLLECT (baseline collect missed it); reworded judge found new RGPD finding + self-caught false positive + corrected collect coverage claim 21/21→20/21. Integrity/honesty invariants (kept class B) carry the discipline, not the caps.
 - **pattern 4 — lock strings, never shapes**: LLM-convention output layers (banners, fences, table columns, section order) wobble run-to-run in BOTH directions — baseline itself deviated from spec where after conformed (§0 ENTRIES, BUNDLE-before-SCORING). Stable contract = census-locked literal strings; anything unlocked drifts and MUST be tolerated by consumers (tier recognition "by intent" is the right pattern).
 - **link**: [[BDR-082]] [[BDR-081]] [[LRN-139]] [[LRN-113]].
+
+## LRN-141 — adopting an external skill: take the invariants, refuse the machinery (2026-08-24)
+Context: unlazy import ([[BDR-083]]). Pattern: an external skill's MACHINERY encodes ITS threat model and ITS doctrine; only its INVARIANTS transfer. Two clean cases from one repo. (1) Approval store binding PATH/shell/platform exists because unlazy executes ledgers INHERITED from untrusted repos — importing it into a config that authors its own ledgers buys per-command approval prompts and closes zero threat. (2) Stop hook returning `decision:"block"` exists because unlazy has no human gate — importing it into a config whose spine is "STOP + escalate to human" would make the tooling fight the doctrine. Meanwhile the invariants (exit 0 AND marker; evidence persisted so the next reader gets fact not report; impossible ≠ deletable) cost ~250 l of our own bash and fit the EXISTING contract with no new tree.
+Separating test: ask WHAT THREAT / WHAT DOCTRINE does this piece assume. Answer "theirs" → refuse the piece, keep the invariant it was protecting.
+Corollary on claims: unlazy's own research/validation-protocol.md RETRACTS its v1 benchmark numbers as unreproducible while the repo DESCRIPTION still advertises them. Read a project's self-criticism before its README — the retraction is the credibility signal, the headline is not.
+Future application: any skill/plugin adoption — skills-external/, /plugin-check, install-plugins.sh.
+
+## LRN-142 — structure locks are fixed-string: reflowing a doctrine paragraph reds them (2026-08-24)
+Context: contract-gates ([[BDR-083]]). Editing lib/verify-secure-loop.md rewrapped 5 locked phrases across line breaks ("Max 3 conformity iterations", "Max 3 security iterations", "re-verify the REQUEST first", "always re-checked BEFORE security", "one verifier dispatch + one security dispatch") → loops-light.test.sh 30 pass / 5 fail, though ZERO doctrine was dropped. Locks did their job: they cannot distinguish "clause deleted" from "clause rewrapped", and that conservative bias is correct — the alternative (fuzzy matching) would miss real deletions.
+Rule: when editing a doctrine file under structure locks, grep the test's lock strings FIRST, then re-flow AROUND them — each locked phrase stays on one unbroken line. Fix the DOC, not the lock, unless the doctrine genuinely changed. Under locks today: verify-secure-loop.md, contract-interview.md, verifier / security-auditor / plan-challenger agents, seo+geo (71 locks).