plan
Structured Planning
Verification-driven task decomposition with Sibyl-native tracking. Mined from 200+ real planning sessions: the plans that actually survived contact with code.
Core insight: Plans fail when steps can't be verified. Decomposition that lands in concrete checks survives contact with reality; abstract bullets don't. And a plan is a durable artifact consumed by autonomous runs and other agents, not chat exhaust — tracking in Sibyl and the repo lets it outlive the context window that produced it.
How to read this skill: the first plan is a hypothesis, and replanning is the rule rather than evidence the plan was bad. The Phase 1 scale table is the real dial — it decides whether you plan at all.
The shape: SCOPE → EXPLORE → DECOMPOSE → VERIFY & APPROVE → TRACK, with a loop back to DECOMPOSE when review finds gaps.
Phase 1: SCOPE
Bound the work before decomposing it. The goal is calibrating planning depth to actual scope, not generating a deliverable.