docs(learnings): tighten — archive 8 usage-cold lessons - #1156
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… (17 rows) First non-empty known-stranded.tsv (ADR 0027). All rows share one structural cause: the /war refiner rebases each task branch locally in the serial merge queue and never force-pushes, so the remote ref keeps the worker's pre-rebase SHA while the rebased tip is what merged — a permanent tip-reachability failure that is not evidence the work is un-merged. 13 rows (campaign 2026-07-24-standing-record-and-guard-hardening): patch equivalence PROVEN by `git cherry origin/master <remote-sha>` returning 0 '+' lines. All 13 were cleared from origin by a deliberate manual push-delete in the same sweep, so their rows are provenance rather than live gate input — the same shape as this file's 2026-07-09 seed note. 4 rows (2026-07-22-lessons-learned-seed): still live on origin, and deliberately marked OPERATOR-ACKNOWLEDGED rather than probe-proven. `git cherry` returned 1-2 '+' lines each (706da67 #1006, a2ed4b8 #1009), so patch-equivalence is NOT proven and the probe alone would leave them needs-human. The justification is that both commits have same-subject, same-issue counterparts on master (7e62a0a, 0d65b14) with different patch-ids — the signature of a conflict-resolved rebase, which legitimately changes patch-id. Recorded so they stop resurfacing as needs-human every sweep; the deletion gate is untouched either way. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Operator-approved /lessons-learned tighten strike (full default cut): the 8 eligible slugs behind the hard floors, freeing 1,411 projection bytes (23,492 → 22,081 B). Archives are moves — every lesson stays queryable under docs/learnings/archive/. Shortfall vs the 17,000 B advisory target (~5,081 B) is structural: no further candidates clear the usage floors. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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What
The repo half of an operator-gated
/lessons-learned tightenpass: the full default strike set — all 8 slugs the usage floors left eligible — moved todocs/learnings/archive/(moves, never deletions; archived lessons stay queryable).Slugs: refiner-dispatched-gate-never-resolvegate-composed-shell-suite-blind, war-config-fill-defaults-resolver-exits-nonzero-on-absent-config, plan-literal-test-spec-can-be-vacuous-strengthen-under-latitude-rule, plan-rescope-note-supersedes-stale-spec-surgery-list, audit-gate-anti-cheat-spine-pin-equality-benign-advance-verdict-hard, red-team-drift-guard-spine-probes-are-lead-run-prose-not-spine-array-entries, plan-can-name-a-nonexistent-lens-even-in-an-anti-drift-plan, readme-undersell-guard-couples-doc-prose-to-true-slot-count.
Numbers
Projection 23,492 → 22,081 B (117→116 lines counting header; verify PASS both sides; redaction lint clean). Loud shortfall: still ~5,081 B above the 17,000 B advisory target — the floors protect everything else, so this is the structural ceiling of eviction; further shrink needs description-cell trims, not archives.
Local half already swapped atomically (backup + prev retained). Branch cut off master so only the 8 moves ride this PR.
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