investigatelisted

# /investigate ## Process 1. Reproduce the bug — write the minimal repro steps 2. Identify the data flow involved 3. Form hypothesis: "I think the bug is caused by X because Y" 4. Test the hypothesis — instrument code, check logs, run debugger 5. Either confirm or rule out; if ruled out, form next hypothesis 6. Document the root cause: "Root cause: X. Evidence: Y. Affected paths: Z" ## Output Write `plans/tasks/{LINEAR-ID}.investigation.md` with: - Repro steps - Hypotheses tested - Root cause identified - Proposed fix approach (high-level) This file is required by /fix.