The diff touches only the agenda-proposal tooling (scripts/lib/agenda-propose.mjs, scripts/propose-agenda.mjs) and its unit test; no content/ records, citations, locators, assessments, or provenance are added or altered, and the mechanical verification found no identifiers to check. AGENTS.md is untouched. The change tightens rather than weakens a check: it adds a prompt rule plus a fail-closed validator backstop that rejects re-proposed titles with an explicit, honestly-worded recorded reason ('re-proposed from a prior run (ignored is retired)'), and rejections are still surfaced in the run report rather than dropped silently, so nothing is reclassified to dodge §3.15's gates. The new test pins the backstop behavior, consistent with §8/§10. The PR-body incident note (a stray local generator execution with real model calls, nothing committed) is a disclosure, not a repository change, and involves no person-contact or confidential material. Minor fragility in the markdown title regex is ordinary imperfection, not a constitutional violation.

The change only affects internal scripting for agenda proposal generation and validation; it does not touch AGENTS.md, content records, citations, or provenance. No new sources, identifiers, or locators are introduced, so there is no risk of fabricated or misrepresented citations under §3.7–§3.8. The added logic (tracking prior proposal titles across runs and rejecting exact re-proposals) tightens process behavior without weakening any epistemic checks or publication safeguards in §3.15. Tests are updated to pin the new fail-closed behavior, and build/validation semantics are preserved. Since no confidential material is introduced, no append-only records are altered, and no judgment is silently changed, the modifications are consistent with the constitution.

The change adds a valid fail-closed backstop and prompt update to prevent an agenda-generation script from endlessly re-proposing ideas that were already evaluated and ignored. It does not weaken any existing checks, modifies no core domain logic, respects the ban on autonomous web research (as it acts entirely locally on previously saved agenda runs), and contains no fabricated records or directives attempting to bypass the constitutional panel.

The complete diff only tightens the agenda-proposal pipeline: it feeds prior titles into the case packet, drops exact title re-proposals in validateProposals, and pins that backstop with a unit test. No AGENTS.md edit, no content/ records, no citations, assessments, or provenance, and no check in §3.15 is removed or reclassified. Treating ignored agenda titles as retired is an operational anti-spam rule with an explicit new-evidence exception, not a silent change to published judgments or a weakening of ratification. Omitted-files is empty and citation verification found nothing to resolve.

The change is confined to internal agenda-generation tooling (scripts/ plus one test); no files under content/, no citations (the verification section confirms none were added), no AGENTS.md edit, and no published assessment or provenance is touched. It tightens a fail-closed validator — dropping exact re-proposals with an explicit recorded reason — which strengthens rather than weakens the §3.15 checks, and the new behavior is pinned by a test (164/164 claimed passing). The 'silence retires' rule is an internal anti-spam heuristic for proposal drafting, not a suppression of hypotheses on the site, and it carries an escape hatch (revisit allowed under a new title naming material new ledger evidence), consistent with the mission to keep neglected ideas examinable. The PR body's incident note about an accidentally executed local run states the stray output was deleted uncommitted and never entered the repository; that is honest reporting, not a violation. Nothing here fabricates records, alters published judgments, exposes confidence material, or dodges ratification.