What problem does it solve?
Large or system-level requirements are too big to implement in one pass: the route is unclear, decisions depend on each other, and work spans multiple sessions. This Skill turns a vague big requirement into a reviewed, owner-approved Epic contract, then drives each deliverable sub-item to completion with evidence and milestone commits.
Core Features & Use Cases
- Route discovery and decomposition: Converge route-level uncertainty into a proposed Epic with goals, scope, acceptance criteria, decision nodes (AFK/HITL), and sub-item contracts, using wayfinding and shared-language references.
- Dual-layer state management: Keep a permanent Epic document as the single source of truth and a work cursor (.codestable/work/epic-{slug}.md) for resumable execution state, approved revision hashes, and per-item progress.
- Governed execution: Enforce owner gates, fresh-reviewer design/contract/final-acceptance reviews, semantic-atomic milestone commits, and optional parallel sub-item execution with isolated workers.
- Use Case: You need to add a multi-module billing capability. The Skill drafts a proposed Epic, resolves route decisions with you, gets the plan reviewed and approved, then executes each sub-item through cs-feat/cs-issue/cs-refactor with verification evidence until final acceptance.
Quick Start
Ask the agent to break down and drive your large requirement, for example: use cs-epic to plan and execute the migration of our billing system to usage-based pricing.
