---
description: Cross-runtime 2-stage pipeline: trace causal hypotheses, inject evidence into deep-interview style requirements crystallization.
command: jeo deep-dive "<problem>"
when: When you have a problem or bug but don't know the root cause and need investigation before requirements.
---

# deep-dive

Orchestrates a 2-stage pipeline that first investigates WHY something happened (trace) then precisely defines WHAT to do about it (deep-interview).

1. **Trace Stage**: Runs 3 parallel causal investigation lanes to map system areas, identify critical unknowns, and discover root causes.
2. **3-Point Injection**: Transfers trace findings directly into the interview's initialization (enriching the starting point, providing system context, and seeding initial questions).
3. **Interview Stage**: Initiates a Socratic dialogue to refine requirements, skipping redundant exploration and focusing on unresolved unknowns.