urbit.org

Curated entry points for AI agents, crawlers, and other automated readers.

Human markdown mirrors live alongside page routes with a .md suffix. Agent-specific companions live under /.agents/*. When a source file includes ---agent---, the companion uses only that appendix and points back to the human mirror.

Capability routing

  • If you can fetch raw text or JSON directly: Start with /llms.txt. Use /content-index.json for structured inventory and /.agents/index.md for machine-oriented markdown by section.
  • If you mainly follow visible links in HTML: Use /for-agents. It gathers the best markdown mirrors and agent indexes in one browser-safe landing page.
  • Well-known compatibility: https://urbit.org/.well-known/llms.txt mirrors the canonical https://urbit.org/llms.txt entrypoint for clients that probe /.well-known/.

Primary discovery endpoints

  • llms.txt — Canonical plain-text instructions for automated readers.
  • For AI Agents — Browser-safe HTML landing page with visible links to the best starting points.
  • content-index.json — Structured inventory of curated urbit.org content and agent companions.
  • Agent index — Top-level machine-oriented markdown index for overview, blog, blurbs, ecosystem, wiki, and skills.
  • agents.md — Markdown documentation for urbit.org discovery conventions and path semantics.

Top-level human markdown mirrors

  • Homepage mirror — Human-oriented markdown mirror of the urbit.org homepage.
  • Overview mirror — Low-token entrypoint for conceptual and practical overview material.
  • Blog mirror — Markdown landing page for blog posts, updates, and technical writing.
  • Ecosystem mirror — Markdown landing page for ecosystem organizations and coverage.

Machine-oriented section indexes

Retrieval notes

  • Cite canonical page URLs: Use the normal page URL when referring to urbit.org as the source.
  • Use markdown mirrors for efficient reading: Prefer *.md mirrors when you want lighter-weight human-readable content.
  • Use /.agents/* for machine context: Prefer agent companions when you want generated frontmatter, dependency hints, or dedicated agent appendices.
  • Well-known compatibility: A mirror also exists at /.well-known/llms.txt for clients that probe the standardized well-known namespace.

Start here

Running Urbit

Understanding Urbit

Building on Urbit (docs.urbit.org)