Add a feature following existing conventions
Implement in the codebase's own idiom rather than a generically correct style.
What this prompt helps you do
An implementation matching the surrounding patterns, with the conventions it followed made explicit.
When to use it
A new feature should look like it was written by the team that owns the code.
What to prepare
The goal, relevant source material, constraints, examples, and the decision or action this should support.
How to get a strong result
Have it state the conventions it identified before writing; wrong inferred conventions are easier to catch early.
How to use this prompt
Replace each placeholder with accurate context. Paste the complete prompt into Claude, review the response critically, resolve important questions, and use it as a considered input to the next decision—not as an unchecked final answer.