The library

Every prompt, annotated

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

4 prompts
Bolt
system prompt

Bolt — WebContainer App Builder Prompt

The Bolt system prompt for an in-browser app generator running in WebContainer (a browser-based Node.js/zsh runtime). It enumerates hard environment c…

role definition constraint setting chain-of-thought
139 258 4.2k words
LO
Lovable
agent prompt

Lovable — AI Web App Editor Agent Prompt

Agent prompt for Lovable, an AI editor that builds and edits React/Vite/Tailwind/TypeScript apps with a live iframe preview and Supabase backend integ…

role definition ordered workflow protocol tool-use batching policy
89 1.9k 3.6k words
CO
CodeBuddy
agent prompt

CodeBuddy — Craft Mode Agent Prompt

System prompt for CodeBuddy, an IDE coding agent that operates in two top-level modes (CRAFT for execution via attempt_completion, CHAT for planning v…

role definition mode switching (CRAFT/CHAT, Plan/Design) XML tool-use protocol
61 5.9k 5.2k words
LO
Lovable
tool schema

Lovable — Agent Tool Schema Definitions (JSON)

JSON object defining Lovable's agent toolset for editing React projects, including file operations (lov-write, lov-line-replace, lov-view, lov-rename,…

tool description as embedded protocol few-shot examples in descriptions constraint setting
3 482 3.3k words