Individual skill
execution-hygiene
Runs computations so they finish, reproduce and fit the machine that will re-execute them, detaching long jobs through compute_job instead of blocking or sleeping shells, checkpointing so reruns resume, fixing seeds and capping BLAS and OpenMP threads, streaming large tables with explicit dtypes, writing outputs atomically, logging every command with its exit code and rerunning the final pipeline from scratch under the target limits before finishing. Use for any analysis or pipeline that runs longer than a minute, reads files larger than memory, or will be re-executed on a machine with tighter CPU, memory, wall-clock or network limits than this one; a one-off shell command whose output is read immediately does not need it.
backend/cli/skills/core/execution-hygiene/SKILL.md
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- Last checked
- Nov 2, 2026
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- Nov 6, 2026
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- Apache-2.0
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# Execution hygiene
A number that exists only in a terminal scrollback, or that came from a run on a machine
with more cores and memory than the one that will re-execute the pipeline, is not a
result yet. The habits below cost minutes and remove the two most common ways an analysis
fails after it "worked": it cannot be rerun, or it runs differently.
## Rules
1. **Detach anything that outlives a shell prompt.** A step that may exceed a few minutes
goes through `compute_job start` (name, purpose, command, cwd, declared artifacts and
checkpoint path). A job that settles within the dispatch's grace comes back in that step
with its outcome, output tail and deliveries; a longer one wakes you when it ends, so go
on with other work rather than `wait` on it, and read `compute_job logs` only when the