Fable 5 methodology as a Claude Code plugin: decompose by verification boundaries, verify against the world, choose next by plan-change. Ships fable-scout + fable-refuter agents.
Agent
Use for fable-5 step 6 — adversarial verification of a conclusion, diff, or analysis before declaring it done. Dispatch with the claim and pointers to the evidence; fresh context is the point, so do not include the reasoning that produced the claim.
Agent
Use for the fable-5 scout pass — read-only comprehension of unfamiliar code or data before decomposing a hard task. Dispatch in parallel (one per subsystem) when the territory is large. Returns a map, not file dumps.