drift-summary

name	drift_summary
status	codified
version	1.0.0
tier	episodic
description	Summarize last 7 days of compass drift events · alert distribution + top 5 negative drifts · pure read-only · NO LLM.
inputs	[{"lookback_days (int, default 7)":"days back to scan"},{"drift_log_path (path, optional)":"override default .cache/drift_history.jsonl"}]
outputs	["total_events",{"alert_counts (by level":"green/yellow/red)"},"top_negative_drifts (list of {score, prompt_excerpt, ts})","first_seen_ts","last_seen_ts"]

drift_summary

Read ~/.claude/plugins/nautilus-compass/.cache/drift_history.jsonl (or override path) and aggregate the last N days of drift events.

When to use

• Weekly review: "where am I drifting recently?"
• Pre-ship audit: "any red alerts in the last 24h?"
• Anchor reset: "what's the top neg-hit signal across recent prompts?"

Why codified (not prototype)

• 7+ runs over multiple weeks (5/04, 5/12, 5/17 etc · 每次 user 问 drift 摘要)
• Pure read-only · no side effects · cannot regress
• Deterministic output schema · easy to assert in smoke tests