What is app-it-static?

A macOS packaging tool that builds a web app once and places the finished output in a Dock-launchable `.app`. The app serves that fixed build rather than running a development server.

Use it to package a static web build, install it in the App It applications folder, and verify the bundle and its local server.

It provides a lightweight desktop launcher for a finished site while making clear that later source changes require a new build.

app-it-static — Skill for Claude Code by Christian-Katzmann

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 Christian-Katzmann/app-it --skill app-it-static

Clone the repo

git clone --depth 1 https://github.com/Christian-Katzmann/app-it

Made for: Claude Code.

Or install app-it-static, the plugin that ships this one along with the rest of its 1 skill.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/christian-katzmann/app-it/app-it-static/github.svg)](https://agentmods.dev/skills/christian-katzmann/app-it/app-it-static)

Your own site

<a href="https://agentmods.dev/skills/christian-katzmann/app-it/app-it-static"><img src="https://agentmods.dev/badge/skills/christian-katzmann/app-it/app-it-static/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/christian-katzmann/app-it/app-it-static"><img src="https://agentmods.dev/badge/skills/christian-katzmann/app-it/app-it-static.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 89 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,251 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. Third-party audits

NVIDIA SkillSpector warn 7 Sept 2026

SkillSpector: 2 findings, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

medium Rogue Agent · line 56
Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.

Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
medium Rogue Agent · line 104
Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.

Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.

How audits are shown

Origin original 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.

Model	Per session	Once invoked
Fable 5.1	$0.00089	$0.01251
Opus 5	$0.00044	$0.00626
Sonnet 5	$0.00018	$0.00250
Haiku 4.5	$0.00009	$0.00125

Measured 9d ago against content hash 07e88b8de655, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

app-it-static 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 9d ago.

The scan reads SKILL.md. This mod also ships 12 executable files (templates/desktop-build.sh, templates/desktop-icons-preview.sh, templates/desktop-icons.sh, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

plugins/app-it-static/skills/app-it-static/SKILL.md · 136 lines

How it starts

The opening of the file, as written. The whole thing — 136 lines — stays where its author put it; the contents beside it link to each section on GitHub.

app-it-static - Make a finished build launchable from the Dock

app-it-static is the no-dev-server companion to app-it: it builds once, serves the finished output, installs beside live apps in ~/Applications/App It/, and keeps the native Swift WebKit window and Dock identity.

Non-Negotiables

Run templates/inspect-static.sh first and read the output before editing.
Confirm before the first project build. It can write files and take time.
Never run npm run dev. If the app needs a live dev server, route to app-it and say why.
Serve a snapshot and say so. Source changes need desktop:rebuild.
Default to serve_mode: "server". Use file only after proving the build is file:// safe.
Copy shipped templates and customize through scripts/app-it.config.json. Do not re-derive launcher patterns.
Verify the built output, app bundle, install path, runtime port, server response, quit cleanup, and human-only GUI limits.

Reference Map

Open only the files needed by the inspection result:

references/project-inspection.md - static-servable tests, build/output detection, package managers, monorepos, names, bundle IDs, and tools.
references/serve-modes.md - server vs file decisions and the file:// safety checklist.
references/generated-files.md - template roster, shared-template rules, allowed target-project files, config JSON, and package scripts.
references/verification.md - smoke tests, app-bundle checks, runtime checks, cleanup, and human/deferred buckets.
references/report-template.md - exact final report format plus decision history.
references/anti-patterns.md - traps that cause broken static launchers.

Templates

Templates live next to this file in templates/. Copy them into the target project; do not rewrite them. See references/generated-files.md for the full roster.

Shared templates are byte-identical to app-it and guarded by repo validation: wrapper.swift, native-run-stub.c, desktop-icons.sh, desktop-icons-preview.sh, desktop-install.sh, info-plist-template.xml, and placeholder-icon-gen.sh. If launcher internals change, edit the app-it copy and re-sync this plugin so marketplace installs stay self-contained.

Read the full file on GitHub · 136 lines

Files

What ships with it

23 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

9d ago First seen · 136 lines · 89 tokens per session scan A 07e88b8de655

Subscribe to this mod's changes

app-it-static is a skill published in the GitHub repository Christian-Katzmann/app-it (217 stars, last pushed 1mo ago), licensed MIT. It adds 89 tokens to every session and 1,251 once invoked, about $0.0004 per session on Opus 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 2026-08-30.

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