`closeClaimSpans` rewrites only a span matching `[words]{claim=ID]` with a well-formed id, changing that final `]` to `}`. The tests show that malformed ids, spans with no opening bracket, bare markers and a stray bracket after a good span are left alone. The corrected article still passes through the same loader, schema and marker checks, and the loader still refuses a misclosed span in CI, so no fail-closed check in §3.15 is loosened or dodged. On §8's 'no silent data repair', the correction is disclosed in three places: a sentence in the edition's rationale naming the claim ids and attributed to the verb, in the existing 'Measured by the verb' pattern; the run's reason note; and `corrections.md`. `assembleEdition` builds a new reply object instead of mutating `given`, so `reply.json` keeps the drafter's text as sent, and the compare test asserts all of this. The edition's model stamp is therefore not a misattribution: the one-character markup change is labelled and can be reconstructed from the run directory. No file under content/, no citation, no protocol text and no part of AGENTS.md is touched. Two minor notes. The 'Supervised-by: founder (direction in session, 2026-09-29)' stamp predates the 2026-09-30 marker check and runs it cites; this is plausibly a session spanning UTC dates, as with the prior entry, so it is not positive evidence of misattribution, but the operator could confirm it. The PR body's per-run costs sum to $6.08 against the stated $6.09, which is consistent with cent rounding.

The change performs a deterministic one-character markup correction only for an otherwise complete, well-formed claim span, after which the normal edition validation still applies; malformed IDs and other marker faults remain errors. It is not silent repair: the original drafter reply is preserved, while the correction is recorded in the edition rationale, run note, and `corrections.md`, including the affected claim IDs. The tests cover both the narrow accepted pattern and nearby malformed patterns that must remain untouched. No content citations, assessments, confidential material, or AGENTS.md provisions are altered, and the decision entry records the stated founder direction with date and channel.

The change fixes an exact syntactic bracket slip in claim span markup (`]` instead of `}`) in `src/domain/article.ts` and records the mechanical correction transparently. It adheres to the rule against silent data repair by explicitly documenting every closed span in the edition's rationale, the run note, and a dedicated `corrections.md` artifact beside the untouched original reply. No content records, citations, or constitutional texts are modified, and all constraints in §3 and §8 are satisfied.

The diff adds a narrowly scoped closeClaimSpans helper that rewrites only the known one-character slip (']' for '}') when opening bracket, words, brace, and a well-formed claim id are already present; every other malformation is left for the drafter. That is not silent repair: assembleEdition records closed ids in the edition rationale via closedSpansSentence, the run note, and corrections.md beside the untouched reply.json, matching the §8 ban on silent data repair and the DECISIONS/MAINTENANCE documentation. No AGENTS.md edit, no content/ or citation changes, no check loosened—the markerErrors path and repair-round path still refuse real faults. Tests cover the fix, non-touch cases, and the no-second-call edition path.

The change is a narrowly scoped, deterministic one-character markup normalization (']' → '}' on an otherwise well-formed claim span), not a weakening of any §3.15 check: malformed ids, bare markers, unopened spans, and stray brackets still fail and still go back to the drafter, and the corrected article is validated by the same loader rules afterward. The code rule against silent data repair is explicitly satisfied — the repair is disclosed in three on-the-record places (the edition rationale labeled as the verb's measurement, the run note, and corrections.md), while the drafter's reply is preserved unmodified so the one-character difference is publicly inspectable, satisfying the provenance and versioning requirements of §3.9/§3.14. The diff touches no content/, no citations, and no AGENTS.md; tests cover both the fix and the refusal to fix anything else. The disclosure sentences are attributed to the verb, not the drafter, so nothing is misattributed. The cost rationale ($6.09 across six runs) is plausible and the decision is logged in docs/DECISIONS.md with the existing supervised-by convention.