What problem does it solve? Multi-step implementation work loses its requirements, design decisions, and in-progress state when a session ends or context compaction runs, forcing you to re-discuss everything from scratch. ## Core Features & Use Cases - Persistent plan documents: Converts plan mode agreements into structured markdown docs stored under .claude/plans/, indexed via INDEX.md with lazy-read discipline. - WIP.md state snapshots: Captures current task, completed steps, next action, and uncommitted files so interrupted ad-hoc work can resume cleanly. - Session continuity hooks: Uses Claude Code SessionStart and PreCompact hooks to inject WIP state on resume and remind you to flush state before compaction. - Use Case: You agree on a feature design in plan mode, get interrupted mid-implementation, and return days later—the skill's INDEX.md and WIP.md let the agent restate current status and the next step without re-asking settled questions. ## Quick Start Ask the agent to record the agreed plan as a persistent doc in .claude/plans/ and keep WIP.md updated so the work can resume after interruption.