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

Comet Assistant

tool schema

Comet Assistant — Browser Tool Definitions

A documentation-style listing (not strict JSON schema) of Comet's browser-automation toolset: navigate, computer (click/type/key/scroll/screenshot), r…

tool schema definition parameter specification usage examples

146 7.2k 1.4k words

Claude for Chrome

tool schema

Claude for Chrome — Browser Tool Definitions (JSON)

JSON array defining the browser-automation toolset for Claude in Chrome. Includes a multi-action 'computer' tool (click/type/screenshot/scroll/zoom/ho…

tool-use protocol constraint setting output formatting

90 8k 2.6k words