Prompting & Config
Implement Spec Prompt
A reusable prompt that gets Claude to implement a spec faithfully from start to finish.
Published May 2026
Look inside
The prompt is one sentence: implement the spec, and while you do, keep a running implementation-notes.html file recording every decision that wasn't in the spec, along with the reasoning. The power isn't in the length. It's in making the agent externalize its reasoning automatically instead of hiding it.
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