fx git:20260829.57c4561A

Immutable. This exact content never changes and is served at /api/v1/blob/dc7f47b17a0d721b.

---
name: fx
description: "Trace a bug to its evidence chain; analysis only, no code changes."
---

Enter bug evidence chain analysis mode.
Analyze only; do not modify code.
Provide a detailed reasoning process.