id: userspace-apps
title: Urbit Userspace Apps
description: Optional discovery bundle for agents working with public Urbit userspace apps. Bundles are additive hints; use the linked SKILL.md and references as canonical instructions.
entrypoint: /.agents/skills/using-urbit-apps/SKILL.md
items:
  - id: hawk
    title: Hawk
    skill: /.agents/skills/using-urbit-apps/SKILL.md
    references:
      - /.agents/skills/using-urbit-apps/references/hawk/README.md
      - /.agents/skills/using-urbit-apps/references/hawk/core-model.md
      - /.agents/skills/using-urbit-apps/references/hawk/ui-and-ops.md
    triggers:
      - hawk
      - feather app
      - urbit http app
      - migrev dolseg
      - hawk computer
      - hawk templates
      - programmable pages
      - urbit page builder
    level: advanced
    side_effects: reads-source
  - id: hawk499
    title: Hawk499
    skill: /.agents/skills/using-urbit-apps/SKILL.md
    references:
      - /.agents/skills/using-urbit-apps/references/hawk499/README.md
      - /.agents/skills/using-urbit-apps/references/hawk499/docs/http-cli.md
      - /.agents/skills/using-urbit-apps/references/hawk499/docs/learning-path.md
      - /.agents/skills/using-urbit-apps/references/hawk499/docs/concepts.md
    triggers:
      - hawk499
      - runtime interface
      - urbit app endpoints
      - userspace runtime api
      - quill endpoint
      - endpoint editor
      - datastar feather
      - hawk499 lessons
      - /i/o editor
      - /o learn
      - runtime endpoint
      - sidecar lessons
    level: advanced
    side_effects: network
  - id: obelisk
    title: Obelisk
    skill: /.agents/skills/using-urbit-apps/SKILL.md
    references:
      - /.agents/skills/using-urbit-apps/references/obelisk/README.md
      - /.agents/skills/using-urbit-apps/references/obelisk/urql/README.md
      - /.agents/skills/using-urbit-apps/references/obelisk/testing.md
    triggers:
      - obelisk
      - urbit rdbms
      - urbit database
      - relational database
      - urql
      - app data storage
      - time travel query
      - nomryg nilref
    level: practical
    side_effects: reads-source
  - id: urbit-mcp
    title: Urbit MCP
    skill: /.agents/skills/using-urbit-apps/SKILL.md
    references:
      - /.agents/skills/using-urbit-apps/references/urbit-mcp/README.md
    triggers:
      - urbit mcp
      - mcp
      - model context protocol
      - agent bridge
      - urbit tool server
      - ship tools
      - mcp server desk
      - gwbtc urbit-mcp
    level: advanced
    side_effects: network