Individual skill

diagnosing-bugs

Diagnosis loop for hard bugs and performance regressions. Use when the user says "diagnose"/"debug this", or reports something broken/throwing/failing/slow.

sdk/cloud/catalog/skills/diagnosing-bugs/SKILL.md

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Last checked
Nov 9, 2026

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Oct 22, 2026
License
MIT

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# Diagnosing Bugs

For cross-component tracing and hypothesis testing, consult
references/systematic-debugging/GUIDE.md. Its supporting files are relative to
that directory. Use tools actually exposed by this Runtime; upstream repository
paths and named subagents are not installed capabilities. Diagnose, reproduce,
fix the cause, and rerun the reproducer before claiming success.

For Electron DOM/CSS or stale-renderer diagnosis, read
references/desktop-dom/GUIDE.md. Match the actual app/build/PID and use an
authorized loopback target; never relaunch the user's app to obtain CDP.

A discipline for hard bugs. Skip phases only when explicitly justified.
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