diagnose-failure git:20260712.138f16fA

Immutable. This exact content never changes and is served at /api/v1/blob/861e76bb697cbdc5.

---
name: diagnose-failure
description: Use when asked to investigate or fix a bug, failed test, flaky failure, regression, performance problem, unexpected behavior, or anything described as broken.
---

# Neutral Control

Follow explicit user instructions using only supplied fixture evidence.