WEBVTT

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Install AtSys in a fresh environment
This installs the locally tested wheel, including unpublished recovery/UI improvements—not a new PyPI release.

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Initialize the isolated project
Attach the skill and run the setup pilot. Reuse the healthy watchdog; do not replace the existing service or old benchmark evidence.

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Configure twenty tasks and independent acceptance
Controlled SQLite retrieval fixture. Fault after task 5; 12-second progress timeout; two retries; separate, scoped repair.

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Doctor checks configuration before starting
Verify the write/read pilot and executables without running the workload. Then confirm durable watchdog protection.

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Submit once; observe the actual dashboard
The managed worker owns execution. This recorder only watches; it does not repair or restart the task.

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Worker executes the twenty retrieval checks
Watch the durable counter advance. The worker saves an application checkpoint after every task.

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Controlled fault injected at task 5
The engine is disabled. The process is alive and printing, but progress is frozen. No manual intervention.

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Observer detected the stall → supervisor investigates
The deterministic observer stopped the stalled attempt. Native Codex diagnoses read-only and proposes a repair.

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Policy authorized a separate repair worker
Only engine configuration and its repair receipt may change. Supervisor diagnosis does not itself authorize arbitrary writes.

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Repair completed; waiting for checkpoint restart
AtSys is scheduling the resumed worker. The saved checkpoint remains at 5/20; no new fault was injected.

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Resume from the checkpoint, not from the beginning
The engine has been repaired. AtSys runs the declared resume command; tasks 1–5 are not replayed.

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Completed — independently validated 20/20
Twenty unique local results; controlled fault recovered. This is supervision evidence, not a DolphinBench accuracy score.

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Inspect the receipts and final status
The full recording, task configuration, journal, validator outcome and source digests are saved together. No old benchmark was modified.