[shafty023]

Purpose

vibe 1.0.75 covers every lessons-ledger entry that #331 does not. This branch is stacked on #331 (fix/vibe-lessons-20261021b) because it extends code that only exists there. It is retargeted to main once #331 merges. Each lesson got a check inside the plugin first. Prose only points at the check.

No test in this PR sends a signal to a process it did not start. Every run happened on a second machine in a throwaway copy.

Rung table

Ledger entry	Rung	Check	Prose
Codex session state RUNNING with an idle thread	code fix + test	turn-start on a RUNNING record without a pending operation runs reconcileSession against the live thread first, then decides; a thread with a turn in progress is still refused	none
#8960 merged with 8 audit findings: (1) independent criteria audit	check	criteria-audit.mjs: a fresh-context MET/PARTIAL/MISSED table on the current head, every criterion MET	handoff: one paragraph
(2) coverage matrix	check	same script: every criterion x surface x input x flag cell needs evidence	same paragraph
(3) flag-off parity	check	same script: a flag-off cell needs no behavior change: (a diff against the base) or ruling:	same paragraph
(4) diff checks	diff rules	comparator-tie (a new comparator needs a recorded tie test that exists) and unused-export (a new export nothing else names blocks unless recorded). Agent-authored aria copy is the existing copy-provenance rule	none
(4) removed props still defined but never passed	none fits	prose only, and none added. A typed host object is a repo type-check rule, not something a text diff can see	none
(5) client/server capability parity	none fits	prose only, and none added. Which rows a mutation should offer is domain knowledge, so the criteria audit and matrix carry it	none
Rulings made mid-work never reach the criteria	check	rulings-check.mjs: every Ruling line in the QA record or resume log is on the ticket with amends:; the ticket template carries the line	fleet principle 1: extended
QA findings sent to a remote writer without evidence	script + check	finding-brief.mjs refuses a finding with no story or route, viewport, and selector or screenshot; it copies screenshots to <prompt>.evidence/, which fleet.sh now ships	fleet QA: one sentence
Precedent check skipped the disputed sub-question	check	precedent-check.mjs --behavior (repeatable) puts the items in the brief and checklist.json; check refuses until each is observed: ...; screenshot: ... or needs a write to test	quality-loop: one sentence

Closeout per class

• Stale RUNNING state: the instance is fixed by trusting the thread over the record. The same-shaped run-turn path refuses from RUNNING too, but it starts and waits on a turn and was not in the incident, so it is unchanged. The fix is made in the plugin's copy. The user-level app-server-orchestrator skill outside this repo carries the same code and needs the same change there.
• Audit gaps: the audit, the matrix and the flag-off rule are one script, so handoff runs one command. The two new diff rules block with a fix line, like the existing ones. Existing fixtures in two diff-rules tests and three handoff-inventory tests added exports that nothing used, which the new rule flags. The diff-rules fixtures gained a file that imports the export. In the inventory fixtures the incidental export keyword was dropped. No assertion changed.
• Rulings, evidence, precedent: each has a refusing check plus tests for both the refused and the accepted shape.

Ledger entries

Taken: every entry without "in PR #331", except one. Skipped: "our merges broke main's Desktop E2E; heavy suites never ran on the PR". The operator ruled that skipping pre-merge e2e was a deliberate trade for a deadline and not a standing plugin rule, so this PR adds no check, gate or prose for it. Two sub-items of the #8960 entry have no check, with reasons above.

Commands run

All on the second machine, in a throwaway copy: node --test over every plugins/**/*.test.{mjs,cjs,js}: 645 of 648 passed. The 3 failures were handoff-inventory fixtures the new unused-export rule flagged; after the fixture fix above, that file and its sibling ran 28 of 28. uv run pytest plugins/: 2553 passed. uv run ruff check . and uv run pyright: clean. tools/vibe-workers is unchanged.

[shafty023]

Folded into #334 as part of the combined vibe 1.0.74 lessons release.