Write PRD

Write PRDs grounded in what already exists. Greenfield repos get an interview-first flow; existing systems get a codebase audit first.

Workflow

1. Frame the request

Capture: user problem and desired outcome, affected actors and surfaces, constraints and non-goals, and whether this is net-new behavior, an extension, or a replacement. If the description is thin, ask for a detailed problem statement before exploring.

2. Audit the current system

Read enough code to answer:

• where the feature enters the system
• which modules already solve part of it
• existing patterns, contracts, and naming conventions
• tests, plans, or docs describing adjacent behavior

Verify the user's assertions against the code — treat missing evidence as uncertainty, not permission to invent.