logic-checklisted
Install: claude install-skill sumitake/agent-collab
## Unified runtime invocation
Resolve the **plugin root** from this loaded file: `SKILL.md` is at `<plugin-root>/skills/<skill-name>/SKILL.md`. Invoke only `python3 "<plugin-root>/coordinator.py"` and send one bounded JSON request on stdin. Before constructing it, read the **Coordinator request schema** in `<plugin-root>/README.md`; never invent fields or route/action pairs. The public coordinator re-observes the active host/model, captures artifact provenance, excludes same-family routes, and verifies the co-packaged native manifest. It runs standalone from the installed plugin. Never discover a provider executable or reconstruct a raw command. Frontmatter `tier` is a routing recommendation, never a coordinator request field. For a review, cross-check, tiebreaker, or fallback over an authored artifact, capture its exact UTF-8 content and observed author model in the optional `artifact` object even when governance is false; never paste it into the prompt as a provenance substitute.
# Logic check — independent re-derivation of a verifiable computation
Some tasks have a definite right answer reachable through mechanical steps where each step locks in state for the next. **A logic check catches the compounding-error class** that a free-form `second-opinion` review of the conclusion does not — because the conclusion looks plausible while a hidden intermediate step is wrong.
The **mechanism is independent re-derivation**, not "review my reasoning." Asking a model to audit anot