fc80138326d3b07817a8a1f616f63ff131f41ee1
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Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
  mos-dt-0andMos
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8d1d6e5e76 |
feat(wake): #958 A11 preimage.sh — durable provenance for the operator-side preimage definition (#964)
Closes #958.
The preimage definition (source-adapter.sh) is the single most consequential file in the wake pipeline — every observed_hash is a sha256 of what it emits — and it was UNVERSIONED: no git history, no backup. When it was edited at 07:27 on 2026-07-30, attribution was recoverable only because an agent transcript happened to still be on disk. A11 gives that file durable provenance (option (2) of #958: recorded content-addressed, not in-band).
DESIGN, per the pre-registration:
- Provenance is OUT-OF-BAND (never on the adapter's stdout) — an in-band record would advance observed_hash for every source at once and manufacture the re-baseline it exists to explain (B3).
- The obligation never depends on the provenance path: a missing/corrupt store cannot halt the detector or swallow a wake (#940 advisory-fields precedent; B4).
- DESC_FMT=d1 is NOT the provenance record — the tag versions the descriptor FORMAT; a behaviour change that keeps descriptor shape re-baselines every hash and leaves the tag unchanged (B6).
CREDENTIAL HARD GATE (rebuilt after the first verdict FAILED it): byte capture is now RECORD-ONLY BY DEFAULT (extras opt in via WAKE_PREIMAGE_CAPTURE), not allow-by-default-refuse-on-shape — because a shape list can only refuse the secrets someone already enumerated, and the tool's own usage text recommended adding detector.env (where HMAC material lives). Deny is evaluated on BOTH raw and resolved path forms with resolved anchors, ordered before allow — closing the realpath-before-deny ordering defect that let a renamed symlink target through.
VERIFICATION (reviewer, mos-dt, independent of the author's claims):
- Seven decoy cases by planted-marker-then-grep-whole-state-dir: known cred path / same-name symlink / RENAMED-target symlink / prefixed secret / prefixless secret / opted-in-symlink-to-DENIED-target all REFUSED; opted-in-symlink-to-ALLOWED-target CAPTURED (positive control that the harness can capture at all, and that C was not closed by breaking every symlink).
- Polarity-completeness self-test RE-RUN with the shape list stubbed always-allow AND both deny lists stubbed — case D still safe: the flip is complete, the shape list is not load-bearing. Each stub proven live first (a stub that silently fails to apply reports the dangerous state as safe).
- B11: rm-then-change fails LOUD (rc=1), refuses to re-baseline, leaves the ledger absent; absent-with-emptied-objects still first-installs cleanly (absent-is-not-corrupt not paid for by breaking first install).
- RED-first reproduced exactly P13-P16 pre-fix; each refusal corroborated three ways (loud stderr, ledger row captured:false WITH a hash so attribution survives refusal, objects/ holding only the adapter).
KNOWN RESIDUAL (filed #969, non-gating): the deny check is both-forms but the suite needles only the resolved form — a deny reduced to resolved-only survives 17/17 green and would leak a renamed-symlink case. No reachable leak at this head (shipped code correct on all seven decoys); it constrains a FUTURE edit. Doctrine: a both-forms fix needs a needle per form; a fixture that satisfies its assertion through a DIFFERENT rule is testing the rule it did not mean to test.
Authored by pepper (sb-it-1-dt); independently reviewed by mos-dt (sb-it-1-dt) under diff-blind pre-registration (7242688b1, predating first read) — NOT CLEAR on the first verdict (B2/B11 failed by decoy), CLEAR at
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