A Claude plugin for orchestrating long-running autonomous coding sessions
Agent
Part of cairn-builder
Implements one feature per invocation in a fresh context. Reads appspec.xml / featurelist.json / last-session.md / DECISIONS.md / git log, picks the next failing feature, builds and verifies it through the UI, flips its passes to true, commits. Output ends with FEATUREPASSED: , STUCK: : , NOTHINGTODO, or ERROR: .
Agent
Part of cairn-builder
Runs once at project start. Reads appspec.xml and produces featurelist.json (200+ features), init.sh, README, and the initial git commit. Output ends with INITOK or INITFAIL: .
Agent
Part of cairn-builder
Triggered after 3 consecutive STUCK results on the same feature index. Either finds a working approach for the stuck feature, or marks it blocked:true in featurelist.json so the orchestrator skips it. Output ends with RESOLVED: , BLOCKED: : , or ERROR: .