Authoring-Planning Readiness

Verdict

AUTHORING_PLANNING_NEEDS_T1_FIX

Finite correction list

1. Pin exactly one executable canonicalizer/reference implementation as SSOT: artifact path, revision/version, digest, invocation, inputs, outputs, and complete test vectors.
2. Make every other canonical/extractor/schema description explicitly non-authority and reference the SSOT identity/hash only.
3. Add a scoped Article-14 duplicate-contract guard covering exact duplicate blocking and semantic/structural duplicate review/fail-closed handling.
4. Tighten document_id: reject dot segments, empty segments, repeated separators, and aliases; require exact MCP canonical-ID equality.
5. Tighten marker literal grammar and enforce marker-kind consistency.
6. Replace the checkpoint-own-revision anchor with a finite non-circular external or follow-on anchor procedure.
7. Re-run sealing and all non-regression checks after corrections.

Until all seven items pass, implementation-authoring planning is not approved.