The library

Every prompt, annotated

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

2 prompts Sort

Antigravity

planning prompt

Google Antigravity — Planning/Task-View Agent Prompt

The agentic 'task view' variant of Antigravity's system prompt, layering a structured PLANNING/EXECUTION/VERIFICATION mode machine on top of the base …

role definition state-machine workflow tool-use protocol

69 2.3k 3.5k words

Devin

agent prompt

Devin AI — Autonomous Software Engineer Prompt

The full system prompt for Devin, an autonomous software engineering agent operating a real OS. It defines a planning vs standard mode model, a <think…

role definition tool-use protocol chain-of-thought

8 5.3k 4.9k words