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Build a built-in agent tool v1.0.0

Use this resource to build a built-in agent tool, from manifest to UI

New

  • 354 downloads
  • 203 likes
  • 189 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install builtin-agent-tool-authoring

With no option, the skill goes to ~/.agents/skills/; add --agent claude-code (or codex, cursor…) to target an agent.

First time: connect the CLI with

npx --yes palatekit@latest login

The agent structures the tool's faces: manifest and types for the model, runtime, client executor and UI, then checks the result against the authoring checklist. You get a coherent tool that follows the project's conventions.

Mostly picked by

Updated November 2, 2026

Card for the “Build a built-in agent tool” skill

Details

Works in
Install guides
Generates with
Your agent's model
Licence
Apache-2.0

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What you get

  • SKILL.md: design principles, file layout and authoring checklist
  • references/: architecture, tool design and UI rendering

Good fit for

  • You add a capability the agent must be able to call
  • You want a tool result shown in an inspector or intervention view

Not for

    Tags

    • agent tools
    • built-in tool
    • UI
    • runtime

    About

    You say

    “Create a built-in tool that reads project files, with its manifest and UI rendering.”

    Card for the “Build a built-in agent tool” skill

    Skill published by lobehub under the Apache-2.0 license, delivered in its original version.

    Show more

    How to use it

    1. Install the skill in your agent's skills folder
    2. Ask your agent to build a built-in agent tool, from manifest to UI
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE1.1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • references/architecture.md17.7 KB
    • references/tool-design.md20.6 KB
    • references/ui/composition.md1.9 KB
    • references/ui/diagnostics.md2.4 KB
    • references/ui/inspector.md5.5 KB
    • references/ui/intervention.md3.9 KB
    • references/ui/placeholder.md3.1 KB
    • references/ui/portal.md2.5 KB
    • references/ui/principles.md4.6 KB
    • references/ui/README.md3.2 KB
    • references/ui/render.md4.1 KB
    • references/ui/shared-rules.md5.4 KB
    • references/ui/streaming.md2.7 KB
    • SKILL.md9.4 KB

    Origin and licence

    Listed unmodified

    Author
    lobehub
    Source
    github.com/lobehub/lobehub/tree/4fe9e4227b730872669e12f9230d7672476af2f8/.agents/skills/builtin-tool
    Licence
    Apache-2.0

    Notice

    « builtin-tool » (lobehub, Apache-2.0) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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