Dev Deep Dive

Derived from oh-my-claudecode (MIT, Yeachan Heo). Adapted for the EvoNexus Engineering Layer.

A two-stage investigation that combines causal tracing with requirements crystallization. Use when both the cause AND the scope of a problem are ambiguous.

Use When

• Production issue with unclear cause AND unclear scope of fix
• Bug report that needs both root cause analysis and clarification of "what does fixed look like?"
• Strategic problem where you don't know what to build OR why the current state isn't working

Workflow

Stage 1 — Causal trace

Hand off to @trail-tracer:

• Generate competing hypotheses
• Collect evidence FOR and AGAINST each
• Apply lenses (systems / premortem / science)
• Identify the discriminating probe
• Save report to workspace/development/debug/[C]trace-{topic}-{date}.md

Stage 2 — Requirements crystallization

Hand off to @echo-analyst + dev-deep-interview:

• Surface unstated assumptions
• Define scope boundaries
• Identify missing acceptance criteria
• Save spec to workspace/development/specs/[C]spec-{topic}-{date}.md

Stage 3 — Synthesis

• Combine the trace report and the requirements spec
• Output: a unified understanding of "what's broken AND what done looks like"
• Hand off to @compass-planner to plan the actual fix

Pairs With

• @trail-tracer (Stage 1)
• @echo-analyst (Stage 2)
• dev-deep-interview (Stage 2)
• @compass-planner (Stage 3 handoff)