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Agent skill

API Apps

by nodetool-ai in nodetool-ai/nodetool

Call nodetool.apps from a code action: list, read, create and edit mini apps through the App Builder steps, and debug an app's wiring or run it.

AGPL-3.0Auto-check passedMedia & Creative

Install API Apps

skills CLI
$ npx skills add nodetool-ai/nodetool --skill api-apps -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install nodetool-ai/nodetool api-apps --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/nodetool-ai/nodetool.git skills-src && mkdir -p .claude/skills && cp -r skills-src/packages/system-skills/api-apps .claude/skills/api-apps && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
api-apps
GitHub stars
554
Token cost
~702 tokens
SKILL.md length
324 words
Files
1
Skills in repo
130
Repo updated
First seen
Licence
AGPL-3.0

At a glance

Call nodetool.apps from a code action: list, read, create and edit mini apps through the App Builder steps, and debug an app's wiring or run it.

  • Media & Creative work in your project
  • SKILL.md covers edit and debug
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

API Apps is an agent skill from nodetool-ai/nodetool. Call nodetool.apps from a code action: list, read, create and edit mini apps through the App Builder steps, and debug an app's wiring or run it. Load before the first call into nodetool.apps.

Its SKILL.md is about 700 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Media & Creative. The repository describes itself as: Agent-first Creative Workspace. The licence is AGPL-3.0.

When your agent uses it

  • Media & Creative work in your project

Example prompts

  • “/api-apps”

What it can do on your machine

Read from SKILL.md and the folder at commit f99c652. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are javascript).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

API Apps loads about 702 tokens when it runs. Until then it costs about 50 tokens; SKILL.md has 324 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~50
When it runs · the whole SKILL.md, loaded when a task matches
~702

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from nodetool-ai/nodetool at commit f99c652, republished under its AGPL-3.0 licence (© nodetool-ai). 324 words, ~702 tokens.

Download SKILL.mdSave it as .claude/skills/api-apps/SKILL.md (or your agent's skills folder).
name
api-apps
description
Call nodetool.apps from a code action: list, read, create and edit mini apps through the App Builder steps, and debug an app's wiring or run it. Load before the first call into nodetool.apps.

nodetool.apps

A mini app is a UI of widgets bound to workflow operations and variables, so someone can run a task without the graph. How to design one, and every App Builder tool, is nodetool-app-builder. This is the call reference.

CallDoesAnswers
list({limit})Lists apps, newest first, with their operations.App rows
get(id)Reads the app document: operations, variables and the widget tree.The document
create(name, {description, project_id, from_workflow_id, document})Creates an app. from_workflow_id binds its first operation to a workflow. document starts from a whole app document.{application_id, …}
edit(id, steps, {name, description, workflow_ids, base_updated_at})Applies App Builder steps in order to the saved document, then saves once.The result of each step and the app state
debug(id, {params, interact, run, timeout_ms, poll})Checks every binding and simulates the app.A pass/fail verdict with issues, and the final state of each widget

edit

Each step is {tool, input}. tool is an App Builder tool name, such as ui_app_add_operation or ui_app_add_component. The ui_app_ prefix may be left out.

  • edit(id, []) answers the catalog of every tool with its schema, and the current state of the app. Call it first.
  • workflow_ids loads the bindable surface of workflows the app does not use yet, so a widget can bind to one.
  • base_updated_at refuses the save when the app changed after you read it.

debug

  • {run: false} checks the wiring only. It is free and takes milliseconds. Run it after every wiring change.
  • A full run executes the real workflows and spends real money. Run it to confirm that the app works, not to explore.
  • interact scripts the user actions in order: {set: {key, value}}, {click: <widget>}, {change: {…}}, {run: <operationId>}, {cancel: <operationId>}, {seedResource: {id, items}}. A widget is named by its component id, by a type only one widget has, or by a unique label. Without interact, the natural run trigger of the app is clicked.
  • poll: true returns a session id at once for a long run.
js
const { application_id } = await nodetool.apps.create("Caption maker",
  { from_workflow_id: wfId });
const catalog = await nodetool.apps.edit(application_id, []);
await nodetool.apps.edit(application_id, [
  { tool: "ui_app_add_component", input: { /* from the catalog schema */ } }
]);
const check = await nodetool.apps.debug(application_id, { run: false });

© nodetool-ai, AGPL-3.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in packages/system-skills/api-apps of nodetool-ai/nodetool.

Open the folder on GitHubat commit f99c652

Compare with similar skills

API Apps next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

API Apps compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
API Apps this skillnodetool-ai/nodetool554—~702Automated safety check: PassAGPL-3.0
Gh Stackremotion-dev/remotion62k6 repos~2.4kAutomated safety check: PassCustom licence
HyperFrames Media Useheygen-com/hyperframes58k2 repos~2.1kAutomated safety check: PassApache-2.0
Guizang Social Cardsop7418/guizang-social-card-skill7.4k1 repos~7.8kAutomated safety check: PassAGPL-3.0
Weekly Changelog Videoheygen-com/hyperframes58k—~3.3kAutomated safety check: PassApache-2.0
Anthropic Brand Stylinganthropics/skills180k29 repos~559Automated safety check: PassApache-2.0

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Categories

Questions about API Apps

What does API Apps do?

Call nodetool.apps from a code action: list, read, create and edit mini apps through the App Builder steps, and debug an app's wiring or run it. API Apps is an agent skill from nodetool-ai/nodetool.apps from a code action: list, read, create and edit mini apps through the App Builder steps, and debug an app's wiring or run it.

When should I use API Apps?

API Apps fits situations like: media & Creative work in your project.

How do I install API Apps in Claude Code?

Run `npx skills add nodetool-ai/nodetool --skill api-apps -a claude-code`. Or copy the skill folder (packages/system-skills/api-apps in nodetool-ai/nodetool) into .claude/skills/api-apps in your project. Claude Code loads it when a task matches its description.

How do I install API Apps in Codex?

Run `npx skills add nodetool-ai/nodetool --skill api-apps -a codex`. Or copy the skill folder (packages/system-skills/api-apps in nodetool-ai/nodetool) into .agents/skills/api-apps in your project. Codex loads it when a task matches its description.

Can I use API Apps in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add nodetool-ai/nodetool --skill api-apps -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/api-apps, .gemini/skills/api-apps, .github/skills/api-apps and .opencode/skills/api-apps in your project.

What does API Apps need to run?

SKILL.md names no scripts, command-line tools or credentials: API Apps is instructions for the agent only.

Does API Apps access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is API Apps safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does API Apps use?

API Apps is published under the AGPL-3.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does API Apps use?

About 702 tokens (SKILL.md is roughly 2.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to API Apps?

Skills that share tags, products or a category with API Apps: Gh Stack (remotion-dev/remotion, 62k stars), HyperFrames Media Use (heygen-com/hyperframes, 58k stars), Guizang Social Cards (op7418/guizang-social-card-skill, 7.4k stars) and Weekly Changelog Video (heygen-com/hyperframes, 58k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains API Apps?

nodetool-ai (a GitHub organization) maintains it in nodetool-ai/nodetool, which has 554 GitHub stars. The repository holds 130 skills in this directory. The repository was last updated on October 7, 2026.

Source: nodetool-ai/nodetool on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.