Session Report — TASK-00070 Cockpit Spike Loop

2026-07-22 21:11 · repos ai-dev-brain (main) + Code/valter workspace · goal: "adb OS implemented, all ACs checked & verified by codex"

Summary

A recurring 10-minute loop drove the TASK-00070 operating-cockpit spike to engineering completion with Codex (GPT-5-class on Bedrock) adversarially verifying every step — 16 review passes total. Two backend contracts landed in ai-dev-brain and are Jenkins-green with -race; all 12 spike acceptance criteria are checked with codex-audited evidence; ~30 codex findings were fixed (and 2 codex claims refuted with evidence); a mid-session red main (Jenkins #44) was forensically root-caused and fixed forward. TASK-00070 is now in review — the only remaining items are three human gates for Valter.

⛩️ The three human gates (what "gates" means)

#	Gate	What to do	Why it's yours
1	Timed <30s triage test	Run `python prototypes/cockpit-now/now.py`, open the printed tokenized URL, time yourself: can you identify the top committed item + why + next safe action in under 30 seconds?	Codex rejected the author's self-timed run as evidence — the spike's success measure must be validated by the operator.
2	GO / NO-GO decision	Read `tickets/_local/TASK-00070-…/go-no-go.md` (full evidence table). One explicit choice inside: wait for optimistic-concurrency proof (TASK-00072/73) or accept it as a post-GO condition on write tickets. On GO: activate TASK-00071…76.	The gate that creates the implementation initiative is a founder decision, not an agent's.
3	Accept ADR 0004	`adb adr set-status 0004 accepted` (currently proposed).	Deliberate sequencing: acceptance is go-no-go condition #8, a human governance action at the gate.

Everything else is done. The 10-minute loop has been cancelled (job 0912de24).

Timeline

Loop scheduled (every 10 min) → closed the spike's 7 unchecked ACs with real artifacts: ADR 0004, threat model (C1–C12), 4 specs, slice plan, go/no-go synthesis.
Codex offline (Bedrock 401) → built a ready-to-run 3-step review queue; unblocked later via the work-with-codex cred wrapper.
Backend contract #2: background agent (adb-locks) built cross-process registry locks + atomic replace with real-OS-process contention proofs → PR #2 (6 commits, 4 codex review rounds).
Codex passes 5–10: spike-closeout audit (NO-GO w/ ranked exits), PR #2 rounds (2 P1 test-soundness holes → fixed), staleness sweeps → all findings fixed; 6 owning tickets created (TASK-00071…76).
PR #2 merged (Valter-approved, 0fb4cf8) → Jenkins #44 RED (Linux-only: POSIX read-only-rename semantics + a CLI-test fd-0 finalizer leak).
Fix PR #3: agent refuted the deadlock hypothesis with the actual goroutine dump; 2 codex reviews + 1 byte-identity P1 (fixed directly) → merged (a13d39f) → Jenkins #45 SUCCESS with -race.
Codex zero-drift passes (15–16): remaining items signed or fixed; main's commit state independently confirmed by codex.
TASK-00070 → review; backlog/status.yaml/context.md all in sync; loop cancelled on request.

Artifacts produced

File	What it is
tickets/_local/TASK-00070-…/go-no-go.md	Gate synthesis: 4 GO conditions w/ evidence, codex 8-condition triage table, decision mechanics
…/threat-model.md	C1–C12 control table, each with test/evidence + owning ticket; residual risks + exit condition
…/spec-action-policy.md	Server-side action policy for the 4 task writes (server-derived actor, preflight, audit) = S2's DoD
…/spec-concurrency.md	Cross-process registry concurrency strategy (chosen + pilot-proven in PR #2/#3)
…/spec-data-sources.md	6-source inventory (authoritative/derived/event-based, as_of semantics, trust rules)
…/slice-plan.md	S1→S6 dependency-ordered implementation slices, bound to tickets TASK-00071…76
…/codex-review-queue.sh	Ready-to-run 3-step codex verification queue (built while codex was 401)
docs/adr/0004-….md	Architecture ADR: loopback-only read-first cockpit, 5 options w/ rejection reasons (status: proposed — gate #3)

Code merged (ai-dev-brain, main)

Commit	What landed	CI
`0fb4cf8` (PR #2)	Cross-process locks + atomic replace for stage/adr/backlog registries; real-OS-process contention proof (96/96, disable-lock negative 13/96), crash-safety (exit-42+marker), single-lock ADR allocation (fixed a real NextNumber/Create race), deterministic Windows rename-retry, honesty-swept comments — 6 commits, 4 codex rounds	Jenkins #45 SUCCESS (-race) after #44 red was fixed forward
`a13d39f` (PR #3)	Jenkins #44 fix: honest POSIX read-only-replace semantics (byte-identity proofs) + CLI stdout-capture fd-0 finalizer leak (io.Discard); Lstat symlink-safe read-only classification; fail-fast on read-only targets	Jenkins #45 SUCCESS (-race) after #44 red was fixed forward

Earlier in the spike (2026-07-20, prior session): d156991 (PR #1) — side-effect-free EvaluateCurrentGate + adb initiative gate --json, Jenkins #43 green.

Prototype hardening (prototypes/cockpit-now)

now.py: HEAD→405 (closed a codex-found contract hole where HEAD executed a full collect); already loopback + per-launch token + Host/Origin/CSP guarded.
test_now.py: 34 → 38 tests (AttentionInvariants: committed-P0 unoutrankable; HandlerMethodContract: every non-GET verb 405 + CSP headers). All green.
Live re-validation: sources healthy, hero = TASK-00056, deterministic lanes; the 17-item committed lane is a standing WIP-overload signal.

Key decisions

Fix forward, not revert, when Jenkins #44 went red after the PR #2 merge — root causes were fully understood and test-layer/semantic, not production-lock defects.
Owning tickets created pre-GO but gate-guarded (TASK-00071…76 "BLOCKED ON: go/no-go = GO") — satisfied codex's owners-not-prose condition without pre-empting the decision.
Two codex claims refuted with evidence (and codex later confirmed both): the flock-deadlock hypothesis (goroutine dump showed a test fd leak) and "dir-perm denial is cross-platform" (Windows dir read-only doesn't deny child creation).
Optimistic concurrency stays a named GO-condition choice: wait for TASK-00072/73 or accept as post-GO condition on write tickets — recorded in go-no-go.md rather than silently deferred.
ADR 0004 acceptance deliberately sequenced last (gate condition #8) as Valter's governance action.

Tasks (adb)

Task	Change this session
`TASK-00070` cockpit spike	backlog → in_progress → review; all 12 ACs checked w/ codex-audited evidence
`TASK-00071`…`TASK-00076`	CREATED — implementation slices S1–S6, gate-guarded backlog
`TASK-00077`	CREATED — 3 pre-existing Windows-only test failures (discovered during PR #2/#3 verification)

Codex verification chain (16 passes)

Every pass adversarial, read-only, via the codex-exec.ps1 cred wrapper; findings triaged as claims — real ones fixed, wrong ones refuted.

Pass(es)	Scope	Outcome
1–4 (2026-07-20/21, prior sessions)	Original design + Now prototype	2× design NO-GO → spike reset; prototype hardened over 3 rounds (fail-loud sources, trusted status-age, loopback threat model)
5	Spike closeout artifacts	NO-GO w/ 8 ranked conditions → HEAD-405 hole fixed, staleness fixed, tickets created
6–9	PR #2 branch (4 rounds)	2 P1 test-soundness holes + Windows overclaims → all fixed; branch declared codex-clean
10	Six unsigned ACs re-check	3 signed, 3 cross-file drift → fixed
11–13	PR #3 (red-main fix, 3 rounds)	fd-leak mechanism confirmed + refined; byte-identity P1 → APPROVE → merge → Jenkins #45 green
14–16	Zero-drift confirmations	Post-merge staleness fixed; main commit state independently verified; substantive claims all confirmed

Sources & caveats

Fact sources used this run: git (ai-dev-brain) mtime scan adb task status Jenkins MCP session context. gstack timeline: unavailable.

Recap reflects available context + git facts; this was a long, compacted session — earlier steps (notably the 2026-07-20/21 prototype rounds) are summarized from ticket notes, not transcript. File lists are derived from git + the mtime scan, not memory. Pass count (16) is from the ticket's session log in notes.md.

The spike artifacts in Code/valter (ticket dir, ADR, prototype changes) are uncommitted — a checkpoint commit is available on request.

Generated by the session-report skill · 2026-07-22 21:11 +0800