Individual skill

node-internals-diagnosis

Use when Node.js segfaults, addon crashes, leaks, event-loop anomalies, thread-pool saturation, V8 deoptimizations, or binding.gyp failures need diagnosis. Not for code edits or service restarts.

.devin/skills/node-internals-diagnosis/SKILL.md

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# Node internals diagnosis

## Contract

| Field | Bound contract |
|---|---|
| Trigger | Diagnosing native segfaults, addon crashes, native or heap memory leaks, event-loop anomalies, thread-pool saturation, unexplained V8 deoptimizations, or binding.gyp failures in Node.js. |
| Authority | Reversible local: runs diagnostic binaries and writes only the diagnosis report and any diagnostic artifacts; rollback is deleting them. Does not modify code or restart services. No remote mutation. |
| Side effect | Runs diagnostic binaries and produces local diagnostic artifacts; no file, VCS, credential, paid, published, deployed, or remote mutation. |
| Done | A diagnosis report names one root cause per accepted failure class with supporting tool evidence, or returns blocked with the named blocker. |

## Inputs

Required: