# Vaultfire V3 x402 final adversarial audit closure

Date: 2026-08-25  
Audit addressed: `/home/user/workspace/VAULTFIRE_V3_X402_FINAL_ADVERSARIAL_AUDIT_20260825.md`  
Result: all 0C / 0H / 2M / 1L source findings closed locally.

This is source and unauthenticated local test evidence only. V3 payment, settlement, fulfillment, and Bazaar publication remain fail-closed.

## M-01 — expired capability bundle

Closed.

`validBundleShape` now requires `now < expiresAt`; the upper bound is exclusive. Tests cover `expiresAt - 1`, exactly `expiresAt`, and `expiresAt + 1` for both `evaluateV3CapabilityEvidence` and `evaluateV3BazaarPublicationGate`.

Receipt timeout cleanup remains available without weakening current authorization semantics. A terminal expiry transition authenticates the exact historical bundle at `expiresAt - 1`; it cannot make an expired bundle appear currently satisfied and cannot authorize another state transition.

The independent audit harness now reports:

- `expiresAt - 1`: satisfied;
- `expiresAt`: unsatisfied;
- `expiresAt + 1`: unsatisfied;
- one day later: unsatisfied.

## M-02 — stale compatibility SDK source hash

Closed.

The repository compatibility generator refreshed both outputs. The recorded hash for `repos/vaultfire-sdk/src/v3/client.ts` is now:

`0eed7b9e18089dc86948b3d03e009ad4f22d71866af9dab53f7b67ba4673003f`

This equals the current source hash. The compatibility `--check` command and full `npm test` both pass. Protected V2 source, ABI, baseline registry, and bytecode manifest paths were not changed.

## L-01 — generic OpenAPI path parameters

Closed.

A shared JSON constraint source now drives both runtime regular expressions and generated OpenAPI path schemas. All 10 V3 path-parameter occurrences carry their runtime pattern:

- canonical contract name;
- canonical unsigned decimal bond, dispute, task, and proposal IDs;
- lowercase bytes32 evidence, mandate (two routes), and challenge IDs;
- `v3r_` plus 32 lowercase hexadecimal request ID, fixed at 36 characters and labeled with the stronger `isValidV3RequestId` semantic validator.

The generator fails if a route introduces an unknown parameter. An anti-drift test compares every generated path schema to the shared runtime source and asserts exactly 10 occurrences.

## Final validation

- `npm test`: PASS — 20 files, 128 tests.
- direct `vitest run`: PASS — 20 files, 128 tests.
- `npm run typecheck`: PASS.
- deterministic registry generator: PASS — 9 files.
- V2/V3 compatibility generator `--check`: PASS.
- recovered route-disposition generator `--check`: PASS.
- V2 Bazaar metadata validator: PASS — 76 candidates, 29 with Solana options.
- V3 Bazaar publication: 0 candidates; ineligible; no listing or deployment evidence IDs.
- Bazaar live-readiness: expected fail-closed exit 1 because owner evidence is absent.
- protected V2 diff: PASS, empty.
- `git diff --check`: PASS.

Logs:

- `/home/user/workspace/vaultfire_v3_x402_final_closure_npm_test_20260825.log`
- `/home/user/workspace/vaultfire_v3_x402_final_closure_direct_vitest_20260825.log`
- `/home/user/workspace/vaultfire_v3_x402_final_closure_typecheck_20260825.log`
- `/home/user/workspace/vaultfire_v3_x402_final_closure_generators_20260825.log`
- `/home/user/workspace/vaultfire_v3_x402_final_closure_bazaar_20260825.log`
- `/home/user/workspace/vaultfire_v3_x402_final_closure_diff_20260825.log`
- `/home/user/workspace/vaultfire_v3_x402_final_closure_expiry_harness_20260825.log`

## Files changed by this remediation

1. `repos/theloopbreaker-site/app/api/v3/x402/_lib/capabilities.ts`
2. `repos/theloopbreaker-site/app/api/v3/x402/_lib/receipt-store.ts`
3. `repos/theloopbreaker-site/app/api/v3/_lib/path-parameter-schemas.json`
4. `repos/theloopbreaker-site/app/api/v3/_lib/validation.ts`
5. `repos/theloopbreaker-site/app/api/v3/contracts/[name]/route.ts`
6. `pr7/registry/build_full_registry.py`
7. `pr7/generated/openapi.json`
8. `pr7/compat/compatibility-discovery-v2-v3.json`
9. `pr7/compat/V2_V3_COMPATIBILITY_MATRIX.md`
10. `pr7/tests/x402/x402-v3-foundation.spec.ts`
11. `pr7/tests/api/v3-read-only-catalog.spec.ts`
12. `pr7/evidence/v3-x402-foundation-validation-20260825.json`
13. `pr7/docs/V3_X402_FINAL_ADVERSARIAL_AUDIT_CLOSURE_20260825.md`

## External blockers

No source test establishes production deployment/code identity, payment configuration, durable-store operations, chain-finality observation, settlement, fulfillment, external audit anchoring, or Bazaar indexing. Those remain mandatory external evidence gates. No live listing or settlement is claimed.
