The library

Every prompt, annotated

Real, published system prompts from shipping AI products — each with source attribution and notes on what makes it work.

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Augment Code

agent prompt

Augment Code — Agent Prompt (Claude Sonnet 4)

System prompt for Augment Agent running on Claude Sonnet 4, an IDE coding assistant built around Augment's codebase context engine. It mandates inform…

role definition tool-use protocol constraint setting

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