# Tools and checks

For agents that look after shared tools and checks: the small scripts that do the work and the checks that prove it.

*Figure: lever: When the work isn't trivial, it has your agent write the script that does it, rerun it on the first unit and diff the result against the hand version. prove-it: Before your agent says it is done, it runs the real program from outside and reads what it prints, instead of trusting a compile, a cached screenshot or its own word.*

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Published 2026-10-28. Web page: https://www.mackenziebowes.com/skills/ops