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KB-7034

FIX7 P-EXT-1 Apply + Recheck-9 Handoff Report (2026-06-10)

8 min read Revision 1

FIX7 P-EXT-1 Apply + Codex Recheck-9 Handoff Report

  • Date: 2026-06-10 · Object ID: TKT-OBJ-064 · Authority: provisional-non-authority, evidence-only, decision_effect=NONE, may_gate=false (this report is NON_AUTHORITY explanation; the authority is the executable SSOT fence; the hash-truth source is manifest.json verified by manifest_tool.py --verify).
  • Macro: RESIDUAL_APPROVAL_SEAL_LANE_MACRO_FIX7_P_EXT_1_TO_CODEX_RECHECK9_HANDOFF
  • Codex consulted: NO · Production mutation: NO · PG/Directus/registry/system_issues mutation: NO · REAL_RUN/QT001/apply/permit/activation/repoint/cutover: NO
  • Final status: FIX7_CODEX_RECHECK_9_HANDOFF_READY (engineering lane closed + tool-verified; remaining gates are Codex/owner authority only).

0. Owner authorization scope (Track 1)

Owner authorized applying the already-validated P-EXT-1 patch exactly as specified, limited to the FIX7 SSOT .md fence + related evidence/packet/checkpoint/index updates. This did not authorize FIX7 approval, Codex seal, production/PG/Directus/registry mutation, REAL_RUN, QT001 apply/permit, activation, repoint, cutover, registries-pivot, or auto-birth repair. None of those was performed.

1. P-EXT-1 target validation (Track 2)

  • Target: knowledge/dev/reports/architecture/t1-fix7-existing-system-refactor-execution-blueprint-2026-06-08/canonicalizer-fix7-canon-v1-ssot.md (was KB rev1).
  • Patch spec source: checkpoints/fix7-article14-repair-patch-packet-2026-06-10.md (TKT-OBJ-053): §2 replace the one ## Executable reference (authoritative) python fence with the validated production-complete code (fix7_canon_v1_ssot_extended.py); §3 two NON_AUTHORITY prose edits (Outputs bullet, Conformance section); no digest VALUES written.
  • Pre-apply identity check: local faithful copy char-count == KB content_length (15905 == 15905) and structure match → local .md is byte-identical to KB rev1; OLD canonical sha256 = 8f80f9f02cec29824a11d2507baaf0558419aecfdb5cf36eafe1336ec16a1f12. The extended fence contains no triple-backtick (round-trips safely) and no tabs/trailing-ws (KB-normalization-safe).

2. Apply + verification (Tracks 3–4)

  • Patch built deterministically (single python fence replaced; exactly one python fence remains; materialized .py from patched .md == fix7_canon_v1_ssot_extended.py byte-for-byte).
  • Applied to KB via update_document → KB rev2.
  • Post-apply byte-fidelity verified: get_document_for_rewrite returns content_length = 31301 == local md2 char count (31301), all special chars preserved → NEW canonical sha256 = 144eb3d9f44bc69b0955c387b7f6c3cf5e306a41e9e2716d42ddf2412f87412a (candidate canonicalizer_sha256 over patched KB bytes; Codex seals the authoritative value).
  • Reversibility: the verbatim OLD content was held in-session; a restore path existed had fidelity failed. No fake apply.

3. KB packet rerun (Track 5) — all command-backed

bash packet/RERUN.sh → exit 0, final line RERUN_RESULT: PASS. Steps (each with exit code in the raw log packet/logs/rerun-verification.log):

  1. materialize from patched .md → md_full_sha256=144eb3d9…, py_sha256=196d9801…
  2. materialized == extended reference: True (196d98011b38…dfdc) → one canonical identity
  3. --selftest → 36/36 PASS, exit 0
  4. --produce docs <ssot.md> → membership_frozen_ok: True, canonicalizer_sha256_cand=144eb3d9…, exit 0
  5. cross-tool membership → f2bda8effc7be19b54722828126b82d7d2d48bee5e5e5dc0c8f347ce210fe251
  6. fail-closed manifest verify → MANIFEST_VERIFY: OK (33 literals), exit 0

4. Packet evidence refresh (Track 6) — no hand-authored hashes

  • manifest.json is now command-generated (manifest_tool.py --emit) and fail-closed verified (manifest_tool.py --verify, RERUN step 6): every hash/digest is recomputed from disk + the produce run; codex_sealed_values_present: false. The verifier was proven fail-closed (corrupted one literal → exit 1).
  • The only literal not recomputed is ssot_old_sha256 (labelled RECORDED HISTORICAL constant; the pre-patch bytes no longer exist on disk; never used in PASS/seal logic).
  • HASH_MANIFEST.txt regenerated by shasum; shasum -a 256 -c over all 25 pinned files → all OK.
  • Logs/expected-outputs regenerated by command (--selftest/--produce); produce determinism: produce.log == produce-run2.log (byte-identical).
  • KB packet synced: manifest.json (rev3, generated+verified), manifest_tool.py (uploaded), README_FOR_CODEX.md (post-patch banner + stale values corrected + demoted to NON_AUTHORITY with tool-truth pointer + verify command added).

5. Eight reproducibility components (Track 7) — all present

README_FOR_CODEX ✓ · machine manifest (generated+verified) ✓ · raw logs ✓ · hash manifest (+shasum -c OK) ✓ · exact rerun commands (RERUN.sh) ✓ · negative-test evidence ✓ · forbidden-scope proof (0 hits, stdlib-only) ✓ · clear expected outputs ✓.

6. Article-14 recheck (Track 8) — engineering lane PASS

  • Missing artifact: NONE — the declared .py is materialized from the SSOT fence and runs (exit 0).
  • Fake selftest: NONE — 36/36 is real command output (raw log), deterministic across reruns.
  • Non-runnable command: NONE — RERUN.sh exit 0 end-to-end including fail-closed verify.
  • Duplicate authority: NONE in the patched lane — materialized .py == extended reference (one canonical identity); SSOT .md fence is the single authority; README/report/manifest explicitly NON_AUTHORITY.
  • Forbidden/unenforced scope: NONE — stdlib-offline-only; 0 forbidden-op hits; verify step enforces manifest integrity fail-closed.

7. Digest/seal classification (Track 9) — unchanged, accurate

6 computable now: membership (N2, FROZEN, reproduced), per-doc N1×10 (REAL_CANDIDATE), marker_fence_registry (N3), superseded_boundary (N4), guard_set (N5 = N1(doc06)), active_corpus (N6, REHEARSAL), canonicalizer_sha256 (CANDIDATE over patched KB bytes = 144eb3d9…). 2 seal/Codex-dependent by design: N7 envelope_manifest = BLOCKED_NEEDS_SEALED_INPUTS, N8 detached_seal = CODEX_ONLY. No value is claimed sealed.

8. Forbidden-scope / duplicate-authority / support-status (Tracks 10–12)

  • Forbidden scopes (Track 10): no REAL_RUN/QT001/apply/permit/activation/repoint/cutover capability introduced; the canonicalizer is a pure offline hasher (imports: hashlib, re, sys, os).
  • Duplicate authority (Track 11): removed in the patched lane — one canonical identity; prose does not compete with the executable SSOT.
  • Tool-Kiem-Thu support status (Track 12): remains support-only / provisional-non-authority; seals/approves nothing.

9. Honest residual (not a fake-green)

A re-fetch+re-hash of all 10 current KB active docs vs the packet's pinned input_docs_sha256 was not performed this session (offline packet uses the pinned byte-exact copies; the 10 docs are forbidden to touch by this macro). This is a read-only verification Codex performs anyway (README §8) — disclosed, not hidden; it does not block recheck-9.

10. Remaining blockers (Track 14) — true Codex/owner authority only

See checkpoints/fix7-recheck9-remaining-authority-blocker-ledger-2026-06-10.md: N7 (sealed approval-event inputs), N8 (Codex-authored detached seal), P7 (Codex re-seal), and the owner's standing do-not-approve. No engineering blocker remains.

Verdict

FIX7_CODEX_RECHECK_9_HANDOFF_READY — P-EXT-1 applied exactly (old/new hash + diff verified), KB packet reruns green and is fail-closed self-verifying, evidence refreshed by command (no hand-authored hashes in the authority artifact), Article-14 engineering lane PASS, forbidden scopes blocked, one canonical identity. Codex still seals N7/N8 + authoritative values; owner's do-not-approve stands.

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