Eval Report

Generate a dashboard of session effectiveness metrics.

Arguments

• --days N — look back N days (default: 7)
• --branch <name> — filter by branch
• --format table|json — output format (default: table)

Process

1. Read Metrics

Read .claude/agent-memory/session-learnings/metrics.jsonl

Guard: If metrics.jsonl does not exist, output "No session metrics recorded yet. Run sessions with evaluate-session.sh enabled to populate." and skip to step 2.

Calculate:

• Total sessions in period
• Average commits per session
• Average tasks completed per session
• Average files changed per session
• Error rate (sessions with errors / total sessions)
• Average session duration (minutes)

2. Read Checkpoint Evals

Read .claude/phases/output/eval-*.json

Calculate:

• Phase transition pass rate
• Most common failure criteria
• Average attempts per transition

3. Read pass@k Data

Read .claude/instincts/eval-tracker.jsonl

Calculate:

• pass@1: (tasks succeeded on first attempt) / (total tasks)
• pass@3: (tasks succeeded within 3 attempts) / (total tasks)
• Average attempts to success

4. Skill Effectiveness Analysis

Read .claude/instincts/eval-tracker.jsonl and analyze skill_context field:

For each pattern ID that appears in any eval-tracker entry:

• Count tasks where this pattern was active
• Calculate pass@1 rate for tasks with this pattern
• Compare to overall pass@1 rate

Display:

| Pattern | Tasks | pass@1 (with) | pass@1 (overall) | Verdict |
|---------|-------|--------------|-----------------|---------|
| inst_abc123 | 5 | 80% | 60% | effective |
| inst_def456 | 3 | 33% | 60% | harmful |

Verdicts:

• "effective": pattern pass@1 > overall + 10%
• "neutral": within 10% of overall
• "harmful": pattern pass@1 < overall - 10%

Flag harmful patterns: "Consider reducing confidence or removing: "

5. Output Report

Display as markdown table:

| Metric              | Value | Trend        |
|---------------------|-------|--------------|
| Sessions (7d)       | N     | -            |
| Commits/session     | N.N   | up/down/flat |
| Tasks/session       | N.N   | up/down/flat |
| Error rate          | N%    | up/down/flat |
| Avg duration (min)  | N     | up/down/flat |
| Phase pass rate     | N%    | up/down/flat |
| pass@1              | N%    | up/down/flat |
| pass@3              | N%    | up/down/flat |

Trend: compare current period to previous equivalent period.

Data File Locations

• Metrics: .claude/agent-memory/session-learnings/metrics.jsonl
• Checkpoint evals: .claude/phases/output/eval-*.json
• pass@k tracker: .claude/instincts/eval-tracker.jsonl