nodetool-app-builder

nodetool-app-builder is a skill for Claude Code, Codex from nodetool-ai/nodetool. It costs 41 tokens per session (3,620 once invoked), scanned A, original, AGPL-3.0.

A builder for NodeTool mini apps: small screens that people can run, with operations, widgets, bindings, variables, and resources.

In plain words
What is it for?
Use it to assemble or repair app screens and connect their controls, data, and resources.
Why use it?
It provides a focused way to make a usable screen rather than a background processing graph.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it to assemble or repair app screens and connect their controls, data, and resources.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/nodetool-ai/nodetool/nodetool-app-builder
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add nodetool-ai/nodetool --skill nodetool-app-builder
Clone the repo
git clone --depth 1 https://github.com/nodetool-ai/nodetool

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for nodetool-app-builder

README.md
[![agentmods](https://agentmods.dev/badge/skills/nodetool-ai/nodetool/nodetool-app-builder/github.svg)](https://agentmods.dev/skills/nodetool-ai/nodetool/nodetool-app-builder)
Your own site
<a href="https://agentmods.dev/skills/nodetool-ai/nodetool/nodetool-app-builder"><img src="https://agentmods.dev/badge/skills/nodetool-ai/nodetool/nodetool-app-builder/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for nodetool-app-builder

Your own site · 80×15
<a href="https://agentmods.dev/skills/nodetool-ai/nodetool/nodetool-app-builder"><img src="https://agentmods.dev/badge/skills/nodetool-ai/nodetool/nodetool-app-builder.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 41 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,620 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00041 $0.03620
Opus 5.5 $0.00016 $0.01448
Sonnet 5.5 $0.00008 $0.00724
Haiku 4.5 $0.00004 $0.00362

Measured 4d ago against content hash dde95d1b2c19, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

nodetool-app-builder scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

packages/system-skills/nodetool-app-builder/SKILL.md · 292 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago Changed · +12 lines dde95d1b2c19
  2. 10d ago Changed · +10 lines 20b2c2aad14d
  3. 12d ago Changed · +3 lines 11b19907e59f
  4. 13d ago Changed 0b5227a07e63
  5. 18d ago Changed · +1 lines ecde4cfcd808
  6. 26d ago First seen · 266 lines · 41 tokens per session scan A 2f005b577dce

Subscribe to this mod's changes

nodetool-app-builder is a skill published in the GitHub repository nodetool-ai/nodetool (571 stars, last pushed today), licensed AGPL-3.0. It adds 41 tokens to every session and 3,620 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-21.

Related

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