Status report — 2026-10-09 05:39 UTC (RUNNING)

Original request: "Work through all open handoffs, delegating to codex/gpt for the heavy lifting, skip any handoffs which are already claimed. Make sure you (fable) do the final review before merging. Use your best judgement to decide how to proceed (handoffs and PRs may be obsolete or low quality or whatever) decide if they should be merged or closed or if anything from them can be salvaged. Drive them to completion. Parallelize with 6 workers who grab work off the queue (not waves). The work on one of the 6 parallel handoffs should be driven to completion before another is started."

🟡 Status: RUNNING. Seven handoffs are now claimed by this session (agent fable-hq-20261004): the six BuildTestEmbedded and kompile-buildscript handoffs each on a codex lane (five relaunched this cycle with fresh rulings), plus a seventh, unclaimed until now, that owns the fix for tonight's buildtest outage. Two Opus lanes are on the handoff-service fix and the outage fix. Nothing on the path to DONE depends on the user. The three deploy recommendations at the end are for your decision only.

Progress since the 05:04 report (the 05:31 cycle ran late because of the disk incident below)

• Root cause of the buildtest outage, established read-only. The forensic lane finished: the resolver library that connects the buildtest coordinator to the droplet service has a 30 s per-call limit, and when one call exceeds it, the library shuts down the whole shared connection, so every other run's in-flight create or status call, and every object already returned over that connection, dies with "closed instance proxy". The droplet service's SSH-key grant legitimately blocks up to 5 minutes, so one slow-booting droplet kills every other run's provisioning. The coordinator log holds 559 such shutdowns since 16:02 yesterday, 84 percent triggered by the SSH grant. A separate, now-cleared trigger (the droplet service's timer requests to the WebCron scheduler exceeding 20 s) stopped all creation between 04:10 and 05:20. A restart would not help: the coordinator already reopens the connection, and the next slow grant brings the failure back. Two existing PRs by the other active orchestrator address exactly this: https://github.com/CodexCoder21Organization/UrlResolver/pull/1226 (make a deadline fail only its own call) and https://github.com/CodexCoder21Organization/DigitalOceanDropletServiceServer/pull/144 (make the SSH grant asynchronous), both with red CI and untouched for 13 hours and 3 days respectively. Their handoff was unclaimed, so I claimed it and dispatched lane PROV2 (Opus) to prove the mechanism with a fail-first test on main versus that PR's head, classify its 7 failing tests, and prepare any needed fixes on my own branch with a comment on the PR, never pushing to the other orchestrator's branches. Challenge records filed and merged: https://github.com/CodexCoder21Organization/PlanRepository/blob/main/challenges/2026-10-09-0521-buildtest-droplet-provisioning-broken-since-about-00-50.md (a duplicate with suffix -2 also landed because my first filing attempt raced the text file; harmless).
• The buildtest web API is stale (it reports itself out of date; its run list ends at 01:55), so the "nothing completed since 00:12" picture was partly the stale view: the coordinator log shows two runs completed after 01:49. Still, provisioning is failing for most new runs and no PR has had a required check run end-to-end since.
• The box's disk hit 100% at 05:20 (2.3 GB free of 309 GB), caught by lane L43's failing selector and confirmed. I deleted the checkouts and build caches of lanes that finished on 2026-10-05 and the dependency clones of finished review lanes: 37 GB free now (89%). All new briefs forbid fresh full clones. Lane L40's one storage failure (archive admission needed 5.37 GB free and saw 4.6 GB) was this incident; it had responded by adding storage margins to 16 test fixtures, which I ruled out as calibrating tests to the machine and instructed it to revert.
• Five lanes hit their 2.5 h boxes and were relaunched with rulings: L28 (mechanism proven: an interrupted projection reader re-waits on the journal lock the publisher holds, so the interruption is lost; run 5 implements the interruptible-acquisition fix), L49 (two fixture rulings: use the public writable error-message field instead of the read-only label, and select outside the protected tail only with an identity assertion), L43 (fixtures proven both ways, 14 selectors left), L44 (24 assertions preserved, unrepaired watchdog fails 3 of 3, candidate 3 first-attempt passes, four inherited gates left), and L40 (compile proven, storage-margin patch reverted, 17 focused selectors to run with native snapshots). L47 continues toward its 06:16 box.
• Handoff-service fix https://github.com/CodexCoder21Organization/HandoffServiceServer/pull/30: the implementing lane HSVC3 checkpointed at its box with the code complete; the re-review had closed every code item; follow-on lane HSVC4 pushed the final two nits as head 332604dd at 05:20 and is running the marshaling, proxy, storm and four neighbour tests on that exact head (it correctly noticed the neighbours must be re-run because production source changed since the last neighbour pass), plus the final storm test against both old heads. CI for this head has not dispatched (no check-run exists yet); its watcher will catch the lost dispatch. Enqueue waits on provisioning either way.
• Merge queues: https://github.com/CodexCoder21Organization/UrlProtocol/pull/647 position 4, https://github.com/CodexCoder21Organization/UrlResolver/pull/1169 position 16; both queue runs will fail on provisioning if they reach the head before the fix lands. https://github.com/CodexCoder21Organization/UrlProtocol/pull/649's second re-requested check failed on the provisioning stall; no further retries.
• Handoff mirror: the 05:04 report reached all six handoffs; this one goes to seven.

PRs from this session (live-verified 05:37 UTC)

✅ Merged

• https://github.com/CodexCoder21Organization/BuildTestEmbedded/pull/1197 (2026-10-05 11:35), https://github.com/CodexCoder21Organization/BuildTestEmbedded/pull/1236 (10-04 20:50), https://github.com/CodexCoder21Organization/BuildTestEmbedded/pull/1239 (10-05 02:18), https://github.com/CodexCoder21Organization/BuildTestEmbedded/pull/1244 (10-05 14:05), https://github.com/CodexCoder21Organization/BuildTestEmbedded/pull/1248 (10-05 06:52), https://github.com/CodexCoder21Organization/BuildTestEmbedded/pull/1258 (10-05 13:40), https://github.com/CodexCoder21Organization/BuildTestWui/pull/362 (10-05 12:16), https://github.com/CodexCoder21Organization/PlanRepository/pull/10909 and https://github.com/CodexCoder21Organization/PlanRepository/pull/10910 (challenge records, 05:3x).

⏳ Pending

• https://github.com/CodexCoder21Organization/HandoffServiceServer/pull/30 — OPEN, head 332604dd; code reviewed clean twice; local re-runs on the final head in progress; required check not yet dispatched; blocked on provisioning.
• https://github.com/CodexCoder21Organization/UrlProtocol/pull/647 — OPEN, final review clean; merge queue position 4.
• https://github.com/CodexCoder21Organization/UrlResolver/pull/1169 — OPEN, final review clean; merge queue position 16.
• https://github.com/CodexCoder21Organization/UrlProtocol/pull/649 — OPEN, final review clean; remote check failed twice on infrastructure; waits for provisioning.
• https://github.com/CodexCoder21Organization/kompile-buildscript/pull/87 — OPEN draft; L47 producing the candidate head.
• https://github.com/CodexCoder21Organization/BuildTestEmbedded/pull/1127 (L43), https://github.com/CodexCoder21Organization/BuildTestEmbedded/pull/1130 (L44), https://github.com/CodexCoder21Organization/BuildTestEmbedded/pull/1207 (L49), https://github.com/CodexCoder21Organization/BuildTestEmbedded/pull/1213 (L40) — OPEN, need rebase, lanes relaunched.
• https://github.com/CodexCoder21Organization/UrlResolver/pull/1185 — OPEN; waits on protocol 0.0.605 from https://github.com/CodexCoder21Organization/UrlProtocol/pull/637 (other orchestrator).
• Not mine, under verification by PROV2: https://github.com/CodexCoder21Organization/UrlResolver/pull/1226 (OPEN, remote check 1885 passed / 7 failed, build failing) and https://github.com/CodexCoder21Organization/DigitalOceanDropletServiceServer/pull/144 (OPEN, all-tests failing).

Delegated work at a glance

⏳ Running - GPT 6.1-sol high - 1 hour 52 minutes total time - 5 minutes since last update - Lane L47 run 6 on https://github.com/CodexCoder21Organization/kompile-buildscript/pull/87. Repaired fixture executing under the original bound; diagnostic and negative variants queued; no behavior repair applied yet. Next checkpoint: the verdicts, or CHECKPOINT at 06:16.

⏳ Running - GPT 6.1-sol high - 15 minutes total time - launching/claiming - Lane L28 run 5: finish three current-main bodies, implement the interruptible-acquisition fix at the one blocking primitive, flip the bodies, open the WHY-first PR. Next checkpoint: the mechanism statement and third-body results.

⏳ Running - GPT 6.1-sol high - 15 minutes total time - launching/claiming - Lane L49 run C on https://github.com/CodexCoder21Organization/BuildTestEmbedded/pull/1207 with both fixture rulings. Next checkpoint: both fixtures proven three ways.

⏳ Running - GPT 6-astra high - 5 minutes total time - launching/claiming - Lane L43 run 13 on https://github.com/CodexCoder21Organization/BuildTestEmbedded/pull/1127: re-run the disk-failed selector post-restoration, then the 14 remaining selectors. Next checkpoint: first selector results.

⏳ Running - GPT 6-astra high - 5 minutes total time - launching/claiming - Lane L44 run 12 on https://github.com/CodexCoder21Organization/BuildTestEmbedded/pull/1130: re-claim, four remaining inherited gates, two saved public experiments. Next checkpoint: the four gate results.

⏳ Running - GPT 6.1-sol high - 2 minutes total time - launching - Lane L40 run 13 on https://github.com/CodexCoder21Organization/BuildTestEmbedded/pull/1213: revert the storage-margin patch, run 17 focused selectors with native snapshots. Next checkpoint: the first held-scenario diagnostic.

⏳ Running - Opus medium - 23 minutes total time - 5 minutes since last update - Agent lane HSVC4 on https://github.com/CodexCoder21Organization/HandoffServiceServer/pull/30: nit head pushed; marshaling, proxy, storm, four neighbours and the two old-head storm runs queued on JVM slots. Next checkpoint: first-attempt verdicts and the filled results table.

⏳ Running - Opus medium - 3 minutes total time - just launched - Agent lane PROV2 on the buildtest outage fix: fail-first test for the connection-shutdown mechanism on main versus https://github.com/CodexCoder21Organization/UrlResolver/pull/1226, classification of its 7 failing tests, fixes on my own branch, one factual comment on the PR. Next checkpoint: the fail-first verdicts.

⚪ Not running (finished) - Opus medium - 10 minutes total time - 11 minutes since last update - Agent lane BTPROV1 read-only forensic: GATE ROOT_CAUSE with the mechanism, evidence, blast radius, existing PRs and the recommendation above. Nothing further expected.

⚪ Not running (finished) - Opus medium - 2 hours 32 minutes total time - 13 minutes since last update - Agent lane HSVC3: implemented and proved the handoff-service fix, closed every review finding, checkpointed; resume steps owned by HSVC4. Nothing further expected.

⚪ Not running (finished) - GPT 6 lanes L28 run 4, L49 run B, L43 run 12, L44 run 11, L40 run 12 - each ended at its 2.5 h box as CHECKPOINT or NEEDS_USER with the evidence summarized above; each replaced by the run listed above. Nothing further expected from these invocations.

Changes since last report: five codex lanes checkpointed and relaunched with rulings; BTPROV1 finished with a root cause; PROV2 launched on a newly claimed seventh handoff; the disk was pruned.

How the fixes work

Handoff service: The service crashed in a loop because each client connection asked for its bytecode and the handler base64-encoded a 2 MB jar plus a 0.7 MB stdlib jar fresh every time, about 10 MB of garbage per request in a 128 MB heap, while a slow consumer left several replies queued unsent. The fix drops the base64 path entirely: the protocol answers the bytecode request itself with a small header plus the jar as one binary attachment that is the same array for every reply, so sixteen queued replies hold one copy and fit both the heap and the outbox ceiling. The deciding test launches the real server entry point in a child JVM with production heap flags, seeds 20 MB of handoff bodies, and has 16 raw wire clients hold their replies unread until the server has answered all of them; it fails on the old code and on encode-once, and passes on streamed.

Buildtest provisioning (PROV2, verifying another orchestrator's PR): One slow call on the coordinator's shared connection to the droplet service makes the resolver library shut the whole connection down, killing every other run's provisioning. The fix makes a per-call deadline fail only its own call and keep the connection and previously returned objects usable, with a second PR making the slow SSH-key grant asynchronous so the deadline is rarely hit at all. The fail-first test holds a returned object in one thread while another thread's call blocks past the limit, then reads the held object: it must return the value, not "closed instance proxy".

Interrupted projection readers (L28): An interrupted snapshot reader re-waits on the journal lock the publisher holds, so the interruption is lost and the reader blocks instead of returning the advertised reset with its cause. The fix makes the reader's lock acquisition interruptible at that one blocking primitive and carries the original cause into the recovery log. Two first-attempt failures on unchanged main are the before-evidence; the same bodies must pass after, and a variant without the interruptible acquisition must fail again.

Blockers

🟡 None requiring the user; one production outage is throttling the pipeline and its fix is now being driven (PROV2). I will not restart production services; the forensic result says a restart would not help anyway. Standing deploy recommendations, your decision only: (1) deploy kotlin-build-ci 0.0.109; (2) deploy the buildtest coordinator after https://github.com/CodexCoder21Organization/BuildTestEmbedded/pull/1213 lands, and after the resolver fix from https://github.com/CodexCoder21Organization/UrlResolver/pull/1226 is pinned; (3) deploy the handoff service once https://github.com/CodexCoder21Organization/HandoffServiceServer/pull/30 lands and 0.0.28 is published.

Plan changes and self-check

Plan changes: a seventh handoff (the outage fix) was pulled onto an Opus lane because it is the artifact every other PR's required check waits on; remote-suite steps are gated on observed provisioning recovery; fresh full clones are forbidden. Progress is real: a root cause with source-level evidence, five lanes advanced to their next proofs, the handoff-service fix at its last gates. Landing parallelization sweep: on https://github.com/CodexCoder21Organization/HandoffServiceServer/pull/30 all gates but CI are done and CI waits on provisioning; the queued PRs have only their runs left; the outage fix's own gates (fail-first proof, classification) started this cycle. No idle runnable gate.

Next steps: prove and land the resolver fix so CI provisions again, then land the handoff-service fix and publish 0.0.28, watch the queued PRs through, drive the six codex lanes to READY_FOR_REVIEW, review and enqueue each green head, complete each handoff, then pull the next unclaimed handoffs onto free slots.

Top-three lessons learned

1. When every PR's CI goes red at once, investigate the shared service before touching any PR. Three "distinct" infrastructure failures on one PR and a dead-looking pool turned out to be one mechanism in a shared library; a read-only forensic lane found it in ten minutes from the coordinator's logs and the library source, and found the fix already written in an unclaimed handoff. Retrying checks would have burned the day.
2. Watch the disk as a shared resource of the lane pool, not per lane. Six lanes each cloning repositories and filling build caches took the box from 91% to 100% in five hours, broke a selector, and tempted a lane into "fixing" fixtures for a full host; check free space every cycle and delete finished lanes' checkouts and caches together.
3. Reproduce the condition in the dump, not the traffic you imagine. A heap dump showing replies queued unsent names a slow consumer as the trigger; fast loopback clients can never create that state, so a storm test built from them passes on broken code. Read the dump for the condition and force it deterministically; that test rejected a fix that had passed every softer test.