FIX7 Recheck-9 R9-B1..B5 Packet Hardening — Master Report (2026-06-10)
FIX7 Recheck-9 — R9-B1..R9-B5 Packet Hardening Lane — Master Report
- Date: 2026-06-10 · Macro:
FIX7_RECHECK9_PACKET_HARDENING_APPROVAL_LANE_MACRO_R9_B1_TO_R9_B5· Executor: T1/Claude-Code/Mythos - Authority: provisional-non-authority, evidence-only,
decision_effect=NONE,may_gate=false. Codex remains the sole sealing authority; owner's standing do-not-approve is preserved. - Codex consulted: NO · Production PG/Directus/registry/system_issues mutation: NO · REAL_RUN/QT001/apply/permit/activation/repoint/cutover: NO
- Final status:
FIX7_RECHECK9_PACKET_HARDENED_SELF_CODEX_PASS(engineering lane closed; remaining items = Codex/owner authority + one named R9-B5 tooling residual, see §6)
1. Readback table (Codex Recheck-9 → repair → acceptance)
| ID | Codex evidence (V1) | Root cause | Repair | Acceptance test | Before fix | After fix |
|---|---|---|---|---|---|---|
| R9-B1 | tamper forbidden_scope.forbidden_operations_found=999 → --verify exit 0, full RERUN PASS (reproduced first-hand: REPRO_B1_TAMPER_VERIFY_EXIT=0, REPRO_B1_TAMPER_RERUN_EXIT=0) |
flatten_hashes() diffed only 33 hash literals; every other load-bearing literal hand-authored, unchecked |
manifest V2 (FIX7-R9-MANIFEST-V2): authority section — EVERY field recomputed at --verify from disk bytes + live executions (produce, selftest, forbidden scan, negative tests), deep-diffed, schema-closed (extra key → fail); explanatory section declared non-authority, excluded from PASS |
suite T1/T3/T4/T10/T11/T12 | exit 0 | exit 1; full RERUN on tampered copy exit 1 |
| R9-B2 | remove doc 05 → EXTRACT_ERROR=LOCAL_FILE_MISSING + membership_frozen_ok: True + exit 0 (reproduced: REPRO_B2_MISSING05_PRODUCE_EXIT=0) |
membership hashed the frozen ID constants independent of extraction; errors never gated digests; --produce always sys.exit(0) |
SSOT fence patched (P-EXT-2): docs-dir listing validated against frozen membership (missing/extra/duplicate), per-member errors gate, membership computed over PRESENT+VALID members, ANY problem → every candidate digest SUPPRESSED_CORPUS_NOT_OK + corpus_ok=false + membership_frozen_ok=false + exit 4; selftest 36→45 |
suite T2; --verify re-executes 4 produce negative tests; missing/extra/invalid/absent-dir all tested |
exit 0 | exit 4, all digests suppressed |
| R9-B3 | set -u only; selftest/produce exits printed not checked; no shasum -c / forbidden scan / negative tests in RERUN |
RERUN authored as narrative, not enforcement | RERUN.sh v2: set -euo pipefail + ERR trap; 10 gates ALL re-executed live; outputs byte-diffed against pinned expected files; PASS only after every gate |
full RERUN on 3 tampered copies (literal tamper / missing doc / byte tamper) | PASS (exit 0) | FAIL (exit 1) at first violated gate |
| R9-B4 | KB packet root not_found for RERUN.sh/HASH_MANIFEST/logs; KB manifest diverged from local; local mirror was the only runnable surface |
only 4 files ever published; local-only authority | 19 packet files published byte-exact at the KB packet root; 10 corpus docs fetched from their CANONICAL blueprint ids (no duplicate KB copy — one authority); kb_fetch_reconstruct.py rebuilds + verifies fail-closed; old divergent root-level fix7_canon_v1_ssot_extended.py deleted |
fresh KB-only reconstruction → bidirectional HASH_MANIFEST match → full RERUN PASS → tree hash equality | not_found | RECONSTRUCTION: OK (28 files); reconstructed RERUN exit 0; tree 21752e19… identical both sides |
| R9-B5 | content_length match only; no independently computed SHA-256 of current KB bytes; N6 kb_revision binding absent | no byte-level export/hash proof existed | direct governed-MCP fetch (get_document_for_rewrite, full content) → SHA-256 over UTF-8 bytes for the 10 current docs + current SSOT, bound to document_id + kb_revision + char/byte lengths; double-fetch determinism proven; byte-exactness of the KB store proven by probe (tabs/trailing spaces/blank lines/unicode/no-final-newline preserved) |
all 10 docs hash == packet pins; SSOT rev2 == 144eb3d9…412a (Codex's unverifiable value, now independently verified), then rev3 == 49c386a9… post P-EXT-2 |
unproven | proven at MCP-byte level; named residual: no server-side digest endpoint (§6) |
2. R9 blocker closure ledger (commands + exits)
| step | command | exit | evidence |
|---|---|---|---|
| reproduce B1 | tamper copy + python3 manifest_tool.py --verify (V1) |
0 (bad, reproduced) | session log; matches Codex §3.5 |
| reproduce B2 | remove doc 05 + --produce (V1) |
0 (bad, reproduced) | matches Codex §3.6 |
| B2 fix proof | v2 --produce on missing / extra / invalid / absent-dir corpora |
4 / 4 / 4 / 4 | logs/adversarial-suite.log T2a; produce negative tests re-executed inside every --verify |
| B2 selftest | canonicalizer --selftest |
0, 45/45 | logs/materialized-selftest.log, logs/extended-selftest.log (byte-identical) |
| B1 fix proof | tamper forbidden_operations_found=999 → --verify; same tamper → full RERUN.sh |
1; 1 | suite T1; full-RERUN tamper test TAMPER_LITERAL_FULL_RERUN_EXIT=1 |
| B3 fix proof | bash RERUN.sh nominal ×2 (deterministic); on 3 tampered copies |
0,0; 1,1,1 | /tmp/rerun-v2-final2.log; tamper logs |
| B4 fix proof | publish 19 files; kb_fetch_reconstruct.py /tmp/r9v2-reconstruct; bash RERUN.sh on reconstruction; tree-hash compare |
0; 0; identical 21752e19c76f76613ba1680b734686c558a130e05d64dbc9eb5131b822fba480 |
KB-native packet completeness report |
| B5 fix proof | governed-MCP fetch+hash, 11 docs ×2 (determinism) | all MATCH; SSOT rev3 49c386a9… |
current-KB byte-hash-proof report |
| adversarial suite | python3 adversarial_suite.py |
0 — 22/22 (4 controls + 18 tamper expectations across 12 classes) | logs/adversarial-suite.log |
3. P-EXT-2 (SSOT patch applied within this lane)
R9-B2's fix necessarily changes the SSOT fence (the produce path lives there). Applied under this lane macro's authorization:
- KB doc
knowledge/dev/reports/architecture/t1-fix7-existing-system-refactor-execution-blueprint-2026-06-08/canonicalizer-fix7-canon-v1-ssot.md: rev2 → rev3; bytes144eb3d9…412a→49c386a9b9666c09786fc4f89bc79776b6046eaee6f4da6d8537d2c753b734d0(38 756 bytes / 38 735 chars); re-fetch hash equality proven (byte-exact apply). - materialized fence == extended reference, sha256
d9caa9fe9f46854c38c996747d50d2e73bc5074705730e869fd6b1f8cc26f3e5→ ONE canonical identity. - For a VALID corpus, every digest value is unchanged (encoder untouched): N1×10, N3
bb9ca0…, N49b111c…, N51144b7…, N6 rehearsald777e8…, membershipf2bda8…fe251. 49c386a9…is a CANDIDATE; Codex seals the authoritativecanonicalizer_sha256/revision. rev18f80f9f0…and rev2144eb3d9…recorded as labelled historical constants (explanatory, never in PASS logic).
4. Article 13 / Article 14 self-verdicts
- Article 13 (KB/PG-native, no local-mirror authority): PASS. The packet is fully KB-resident (19 root files + canonical blueprint ids for the corpus); fresh KB-only reconstruction reproduces the identical runnable tree (
21752e19…) and passes the full strict RERUN; the local mirror is now merely a working copy, not an authority. - Article 14 (executable, fail-closed, no prose PASS, no fake green): PASS at lane level. Every PASS-bearing claim is enforced by a live execution: RERUN gates re-execute everything; the manifest verifier recomputes its entire authority object; the produce path fail-closes with digest suppression; 12 tamper classes are caught by executable tests (22/22); forbidden scope is a computed count (0), not a literal. No value is claimed sealed (
codex_sealed_values_present:false, enforced).
5. Hardcode / disguised-hardcode self-verdict
PASS. No load-bearing literal survives outside recomputation: hashes, counts, booleans, classes, negative-test results, forbidden-scope counts are all regenerated at --verify and deep-diffed; an unverifiable field structurally cannot live in authority (extra-key → fail, suite T12). The only constants are (a) frozen pins reproduced by execution (membership), (b) labelled historical hashes in explanatory (excluded from PASS), (c) the scanner's own pattern table (sentinel-excluded from its scan, hash-pinned).
6. Remaining blockers (all named, none vague)
| ID | blocker | maps to | who acts | blocks fresh Codex rerun? |
|---|---|---|---|---|
| N7 | envelope_manifest_sha256 needs sealed approval-event inputs |
Codex blocker table | Codex + owner | No (rehearsal present) — blocks final seal |
| N8 | detached seal is Codex-authored | — | Codex | No — blocks final seal |
| P7 | Codex re-seal over SSOT rev3 (candidate 49c386a9…) |
— | Codex | No — Codex's own act |
| OWN-1 | owner standing do-not-approve | — | Owner | No — gates approval only |
| R9-B5-RES | no governed server-side byte-export/digest endpoint; byte proof is MCP-fetch-level (method documented, deterministic, reproducible by Codex). Exact next action: if Codex requires a server-computed digest, build a read-only sha256(document_id, revision) endpoint on the agent-data service |
R9-B5 | owner/KB-tooling, then Codex | No — Codex can reproduce the MCP-fetch hashes today; named residual only |
7. Deliverables of this lane
Packet (19 KB docs at knowledge/dev/laws/tool-kiem-thu/packets/fix7-codex-recheck-9-2026-06-10/), P-EXT-2 (SSOT rev3), 7 reports, 2 checkpoints, 1 current-state doc, updated remaining-blocker ledger, governance/registry/index updates. See the KB-native packet completeness report for the full hash tree.
8. Self-Codex review (mandatory 15-point)
1 reproduced every Codex failure first: YES (§1 before column). 2 fixed R9-B1..B5 as one lane: YES. 3 forbidden_operations_found=999 now fails: YES (suite T1 + full-RERUN exit 1). 4 missing doc 05 now fails nonzero: YES (exit 4 + suppression + verify/complete fail). 5 RERUN enforces every exit: YES (set -euo pipefail + ERR trap + per-gate). 6 RERUN reruns HASH_MANIFEST + forbidden scan + negative tests: YES (gates 1, 7, 8-embedded, 9). 7 RERUN.sh/HASH_MANIFEST/raw logs readable from KB packet root: YES (rev list in packet completeness report). 8 one byte-exact governed packet surface: YES (tree 21752e19… equal local↔KB-reconstructed; divergent old copy deleted). 9 current KB byte hashes proven or honestly blocked: PROVEN at MCP-byte level + named server-side residual. 10 all load-bearing manifest fields verified or excluded: YES (authority = fully recomputed; explanatory = declared non-authority). 11 no hardcode/disguised hardcode: YES (§5). 12 no prose-only PASS: YES. 13 no production mutation: YES (KB doc writes in the tool-kiem-thu lane + the authorized SSOT patch only). 14 new objects governed: YES (registry/index updated). 15 Codex's exact adversarial tests now behave as expected: YES (each re-run verbatim, §2).