RuleStack indexes real AGENTS.md, CLAUDE.md, Cursor, Copilot, Windsurf and Cline files from live repositories.

A gallery of real AGENTS.md, CLAUDE.md, Cursor, Copilot, Windsurf, GEMINI.md and Cline files, scraped from live repositories every night, classified by stack and scored. Capabilities are asserted; adoption is measured.

capabilities are asserted by vendors, adoption is counted here nightly, and the two disagree more often than a capability table alone would suggest

Share of indexed repositories carrying each format. One Cursor setup with thirty .mdc files is one adopting repository, not thirty.

RuleStack is published by Compound Labs. Its release history is generated from the product’s own commit log rather than written, and the newest entry is 13 September 2026.