Write a Spec

Create a durable planning document for a significant change. This skill covers both:

• feature specs / PRDs
• refactor RFCs / change plans

1. Pick the mode

Decide which mode fits the request:

• Feature spec when the user is planning new product behavior, a major feature, or a product requirement
• Refactor RFC when the user is restructuring an existing system, improving architecture, or breaking a refactor into safe incremental steps

If the request is ambiguous, ask one short question to resolve the mode.

2. Gather the problem space

Start with a detailed description from the user, then explore the repo to verify assumptions and understand the current state.