# Session Log: GitHub Issue Investigation

**Date**: 2026-04-07  
**Agents**: McCauley, Nate  
**Focus**: GitHub issues #559, #558, #550

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## Summary

Two-agent investigation into three related GitHub issues. McCauley focused on root cause analysis and reproduction quality. Nate assessed test coverage and repro validation. Combined effort produced comprehensive issue documentation with partial resolution.

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## Outcomes

### Issue #550: FIXED ✅
- **Root Cause**: Identified and resolved
- **Status**: Complete fix + regression tests added
- **Validation**: Test coverage confirms issue won't recur

### Issue #558: DUPLICATE ✅
- **Root Cause**: Same underlying cause as #550
- **Status**: Resolved via #550 fix; marked as duplicate
- **Validation**: Repro steps cross-validated against #550

### Issue #559: PARTIALLY IMPROVED ⚠️
- **Root Cause**: Still unresolved
- **Status**: Diagnostics enhanced; root cause detection deferred
- **Investigation**: Diagnostic output now captures more context for future troubleshooting
- **Next Steps**: Requires additional investigation with enriched diagnostic data

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## Key Learnings

1. **Duplicate Detection**: Strong correlation between #558 and #550 repro steps indicates good pattern detection
2. **Diagnostic Gaps**: #559 shows need for enriched error context in future investigations
3. **Test Coverage**: Regression tests for #550 now prevent recurrence; #558 validated via same tests
4. **Future Work**: #559 requires deeper investigation; enhanced diagnostics provide better foundation for next troubleshooting cycle

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## Files Modified

- `.squad/orchestration-log/2026-04-07T08-28-39Z-mccauley.md` — McCauley investigation entry
- `.squad/orchestration-log/2026-04-07T08-28-39Z-nate.md` — Nate investigation entry
- `.squad/log/2026-04-07T08-28-39Z-issue-investigation.md` — This session log

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## Decision Inbox Status

15 inbox items pending review for merge into decisions.md. Triage scheduled for next ceremony.
