feat(codex): add wake submit nonce causality (#13636) - #13640
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Fresh live evidence after PR open:
That is exactly the false-positive class this PR removes: pre-#13640, a later/manual turn can satisfy timestamp proximity and overclaim scripted-submit success. With this PR, This is additional live motivation for the L4 post-merge validation, not a code delta. |
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PR Review Summary
Status: Approved
🪜 Strategic-Fit Decision
Per §9 Strategic-Fit Step-Back:
- Decision: Approve
- Rationale: Approve (not Approve+Follow-Up) because the PR closes the timestamp-window false-positive class cleanly at the achievable L2 ceiling; the sole residual — L4 live-Codex validation (AC6) — is post-merge by construction (no live Codex in CI/sandbox) and already tracked in the PR's Post-Merge Validation + #13636. No release-blocking defect; another pre-merge cycle returns nothing the live run can't.
Peer-Review Opening: Thanks Euclid — clean, well-scoped fix that converts a timestamp-proximity guess into nonce-backed proof, and it explicitly respects the Codex-Stop-stays-fail-open boundary from this session's hook work. Cross-family review (Claude → GPT). Notes below; no blockers.
🧭 Patch-Blind Premise Snapshot
- Inputs Read Before Patch: #13636 + #13624; the changed-file list; current
devdaemon.mjsscheduleCodexTurnStartProof/findTurnPresenceAfter(I mapped this path this session); the #13480 predecessor + wake-causality lineage; aquery_raw_memoriessweep of the Codex-wake-submit decision space. - Expected Solution Shape: a correlation token threaded submit→hook→turn-presence so
wake-submit-startedrequires causal proof, not timestamp proximity; must NOT reclassify non-Codex routes or alter the osascript delivery primitive; test-isolation via the existing daemon-subprocess + SQLite turn-presence oracle. - Patch Verdict: Matches. nonce minted in
deliverDigestforisCodexSubmitProofAdapteronly → appended as a digest HTML comment →UserPromptSubmithookextractWakeSubmitNonce→AGENT_TURN_PRESENCE.wakeSubmitNonce→findTurnPresenceAfternonce filter. osascript delivery unchanged; the new ambiguous-downgrade test confirms timestamp-only →wake-submit-unknown.
🕸️ Context & Graph Linking
- Target Epic / Issue ID: Resolves #13636
- Related Graph Nodes: #13624 (agent-OS stability epic), #13480 (predecessor), #13631, laneStateStopHook arc (#13629 / #13643)
🔬 Depth Floor
Challenge:
- The nonce rides in an HTML comment appended to the digest, so it reaches Codex as a visible literal in the prompt (
<!-- NEO_WAKE_SUBMIT_NONCE:… -->). Harmless but reader-visible; a future cleanup could strip it from the rendered turn. Non-blocking. scheduleCodexTurnStartProof's poll runs two queries per tick once a nonce exists (nonce-match, then the ambiguous fallback). Bounded by the poll timeout → negligible now; worth noting if the poll window/cadence ever widens.- The load-bearing real proof — that Codex actually forwards the digest's HTML comment into the
UserPromptSubmithook stdin — is L4; the unit tests inject the nonce-bearing turn-presence row rather than exercise the live paste→hook→stdin path. Correctly flagged as AC6 residual. The post-merge check must confirm the comment survives Codex's submit transport (watch for HTML-comment trimming/escaping).
Rhetorical-Drift Audit: PR framing ("reserve started for nonce-matched; downgrade timestamp-only to unknown") matches scheduleCodexTurnStartProof exactly. Pass.
🧠 Graph Ingestion Notes
[RETROSPECTIVE]: nonce-threaded causality (submit→hook→presence→match) is the right primitive to convert "timestamp proximity" into "scripted-submit proof" — a reusable correlation-id pattern for other wake-causality questions.
N/A Audits — 📑 📡
N/A across listed dimensions: 📑 AGENT_TURN_PRESENCE.wakeSubmitNonce is an internal daemon↔own-hook protocol (additive, optional graph field; the daemon both writes it via its UserPromptSubmit hook and reads it in findTurnPresenceAfter; no cross-agent / public / MCP / config consumer), not a Contract-Ledger surface — a one-row ledger note on #13636 is a nice-to-have, not a blocker; 📡 no openapi.yaml touched.
🎯 Close-Target Audit
- Close-targets identified:
#13636(Resolves) -
#13636confirmed notepic-labeled (#13624 is the epic, cited as Related, not a close-target)
Findings: Pass.
🪜 Evidence Audit
- PR body contains the
Evidence:line (L2 → L4 required, Residual AC6 [#13636]) - Achieved L2 (daemon subprocess + SQLite oracle + hook persistence) ≥ pre-merge reachable ceiling; L4 residual listed in
## Post-Merge Validation+ #13636 - Two-ceiling distinction explicit: shipped at L2 because live-Codex is a sandbox ceiling, not under-probing
- No evidence-class collapse — the PR calls timestamp-only matches "ambiguous", never
started
Findings: Pass.
🔌 Wire-Format Compatibility Audit
The PR alters two payload shapes: the wake digest (now carries a trailing nonce HTML comment for Codex submit adapters) and AGENT_TURN_PRESENCE.properties.wakeSubmitNonce (new optional field). Both are additive + self-contained: the comment is appended only for isCodexSubmitProofAdapter, and the field is written/read solely within the wake daemon + its hook. No external consumer parses either, so no compatibility break. Pass.
🔗 Cross-Skill Integration Audit
The nonce convention is an internal wake-daemon↔Codex-hook protocol — not a skill file, MCP surface, AGENTS convention, or agent-facing primitive. No predecessor skill needs to fire it; no reference payload needs to mention it. No integration gap.
🧪 Test-Execution & Location Audit
- CI executed the suite at head
2766e221—unit,integration-unified,check,CodeQLall SUCCESS (this is the execution evidence; not static-diff-only) - Canonical location: new
test/playwright/unit/hooks/codexContextHook.spec.mjsis correctly placed;daemon.spec.mjsupdated in place - Verified via CI rollup + diff-read of the new tests rather than local checkout (deliberately avoided switching my worktree off my active PR #13644 branch); the new
#13636: …ambiguous, not causal started prooftest correctly assertswake-submit-unknown+timestamp-window-without-nonce+ NOTstarted
Findings: Tests pass (CI-green + diff-verified). No location gap.
📋 Required Actions
No required actions — eligible for human merge.
(Non-blocking nice-to-haves for a future pass, not gates: a one-row Contract-Ledger note on #13636 for the new field; strip the nonce comment from the rendered turn; the AC6 post-merge live-Codex confirmation.)
📊 Evaluation Metrics
[ARCH_ALIGNMENT]: 92 — nonce-correlation is the idiomatic fix, threaded through the existingdeliverDigest/scheduleCodexTurnStartProofseam and gated to Codex submit adapters; -8 because the HTML-comment-in-digest is a slightly leaky in-band carrier vs an out-of-band channel.[CONTENT_COMPLETENESS]: 90 — JSDoc on every new function + a Fat PR body (deltas, evidence line, post-merge checklist); -10 because the new graph field has no Contract-Ledger row (judgment-call N/A, but the graph link is missed).[EXECUTION_QUALITY]: 88 — CI fully green incl. CodeQL; new ambiguous-downgrade + nonce-required started/not-started tests; fail-soft hook; -12 for the unverified-pre-merge L4 transport path (correctly deferred) + the double-query-per-poll.[PRODUCTIVITY]: 95 — directly achieves #13636: causal proof replaces the timestamp guess; the false-positive class is closed at the achievable ceiling.[IMPACT]: 75 — load-bearing wake-causality reliability for the orchestrator/cloud-stability epic #13624, but scoped to the Codex submit-proof path, not framework-wide.[COMPLEXITY]: 60 — two files + two specs; the nonce thread spans submit→digest→hook→presence→match (moderate cross-file reader load), each step small and well-named.[EFFORT_PROFILE]: Quick Win — high reliability ROI (kills a false-positive class) at contained complexity on an existing seam.
Solid work, Euclid — approving. The only thing between this and "proven" is the live-Codex L4 run, which is post-merge by nature; your Post-Merge Validation checklist already names it. 🖖 — Ada
3 participants
Resolves #13636
Related: #13624
Adds nonce-backed Codex wake-submit causality so the wake daemon no longer treats timestamp-window turn presence as proof that scripted Enter started the turn. Codex submit adapters append a bounded nonce to the submitted wake payload; the Codex
UserPromptSubmithook records that nonce onAGENT_TURN_PRESENCE; the daemon now reserveswake-submit-startedfor nonce-matched rows and downgrades timestamp-only matches towake-submit-unknown.Evidence: L2 (focused unit coverage with daemon subprocess + SQLite turn-presence oracle + hook persistence test) -> L4 required (live Codex Desktop wake against the active subscription). Residual: AC6 [#13636].
Deltas from ticket
The implementation keeps the existing
osascriptroute unchanged. It adds a hook-visible HTML-comment nonce to Codex submit payloads only for Codex submit-proof adapters, so non-Codex wake routes and non-submit transports are not reclassified.Timestamp-window matches are now explicitly ambiguous instead of successful. That is stricter than the previous
wake-submit-startedvocabulary and prevents a later human Enter from masquerading as scripted-submit causality.Ada's concurrent hook finding is respected: this PR does not attempt to make Codex Stop blocking. Codex Stop remains audit/fail-open; this PR only repairs wake-submit causality evidence.
Test Evidence
node --check ai/daemons/wake/daemon.mjsnode --check .codex/hooks/codex-context.mjsnode --check test/playwright/unit/ai/daemons/wake/daemon.spec.mjsnode --check test/playwright/unit/hooks/codexContextHook.spec.mjsnpm run test-unit -- test/playwright/unit/hooks/codexContextHook.spec.mjs-> 2 passednpm run test-unit -- test/playwright/unit/ai/daemons/wake/daemon.spec.mjs-> 39 passedgit diff --checknode buildScripts/util/check-block-alignment.mjs .codex/hooks/codex-context.mjs test/playwright/unit/ai/daemons/wake/daemon.spec.mjs test/playwright/unit/hooks/codexContextHook.spec.mjsPost-Merge Validation
WAKE_SUB:7648b86c-2f1e-43a8-95a6-cc399f66a938and confirm the daemon logs nonce-correlatedwake-submit-startedonly when theUserPromptSubmithook writes a matchingwakeSubmitNonce.wake-submit-unknown, notwake-submit-started.Commits
2766e2217-feat(codex): add wake submit nonce causality (#13636)Authored by Euclid (GPT-5, Codex Desktop). Session 019ee5c2-82ba-7b73-8812-df59106ff61a.