This skill takes the current conversation context and codebase understanding and produces a spec (you may know this document as a PRD). Do NOT interview the user - just synthesise what you already know.

Process

Explore the repo to understand the current state of the codebase, if you haven't already. Use the project's domain glossary vocabulary throughout the spec, and respect any ADRs in the area you're touching.
Sketch out the seams at which you're going to test the feature. Existing seams should be preferred to new ones. Use the highest seam possible. If new seams are needed, propose them at the highest point you can. The fewer seams across the codebase, the better - the ideal number is one.

Check with the user that these seams match their expectations.

Write the spec using the template below, then publish it to the project issue tracker. Apply the needs-triage triage label so it enters the normal triage flow.

Problem Statement

The problem that the user is facing, from the user's perspective.

to-spec

Process

Problem Statement

Solution