- Broad scope triage: inventory + impact clustering + spot-check drift
for 9+ docs, recommends highest-impact area instead of blind ask
- Drift classification: sharp boundary between Update (fix references
in-skill) and Replace (subagent writes successor learning)
- Replacement subagents: sequential subagents write new learnings using
ce:compound's document format with investigation evidence already
gathered, avoiding redundant research
- Stale fallback: when evidence is insufficient for a confident
replacement, mark as stale and recommend ce:compound later
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