Retrospect Report — Aggregate Analysis

Generate aggregate views across captured sessions: compute trends, identify patterns, create Mermaid visualizations.

Steps

1. Filter sessions by timeframe:

   bash ${CLAUDE_PLUGIN_ROOT}/scripts/retrospect-load-sessions.sh $@
   

   First line: PERIOD: YYYY-MM-DD_to_YYYY-MM-DD (use for output filename). Remaining: session file paths.

2. Read session files — extract: user_prompts, tool_calls, duration_seconds, subagent_spawns, started_at

3. Compute metrics: total sessions, avg prompts/session, avg tool calls, total duration, date range

4. Check collaboration insights: list .retro/insights/collab/ for scores (Context quality, Guidance clarity, Critical thinking, Bias awareness)

5. Identify activity patterns: sessions per day/week, high prompt counts (>15), subagent usage, tool patterns

6. Generate Mermaid visualizations (xychart-beta for collaboration scores if available)

7. Write report to .retro/reports/{PERIOD}.md

8. Report completion: file path, summary stats, suggest reviewing domain/collab insights

See reference.md for report template, Mermaid chart syntax, and metric computation details.