Real, published system prompts from shipping AI products — each with source attribution and notes on what makes it work.
The full system prompt for Vercel's v0 assistant, covering its Vercel Sandbox workflow, dedicated file tools vs Bash, Next.js 16/React 19.2 coding gui…
Specifies the email-link formatting protocol: all links use markdown, with a fixed enumerated set of ~29 approved numbered labels (e.g. 02_accept, 11_…
The Cursor agent system prompt for an autonomous pair-programming coding agent embedded in the editor. It defines XML-tagged behavior blocks (communic…
Describes Poke's automatic memory and summarization system: long histories are replaced by a hidden summary tag containing style preferences and topic…
Full agent system prompt for GitHub Copilot in VS Code, combining an identity/instructions block with an embedded JSON array of ~20 tool definitions a…