What is app-it-windows?

A beta tool that packages a local web project as a Windows desktop launcher, including an executable, Start Menu shortcut, and icon.

Use it to build a WPF and WebView2 launcher, start the project's local server, and clean it up when the app closes.

It gives a local web project a desktop entry point on Windows, while making clear that real Windows hardware testing is still needed.

app-it-windows — 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-windows

Clone the repo

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

Made for: Claude Code.

Or install app-it-windows, 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-windows/github.svg)](https://agentmods.dev/skills/christian-katzmann/app-it/app-it-windows)

Your own site

<a href="https://agentmods.dev/skills/christian-katzmann/app-it/app-it-windows"><img src="https://agentmods.dev/badge/skills/christian-katzmann/app-it/app-it-windows/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-windows"><img src="https://agentmods.dev/badge/skills/christian-katzmann/app-it/app-it-windows.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 1,361 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 pass 7 Sept 2026

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	$0.01361
Opus 5	$0.00044	$0.00681
Sonnet 5	$0.00018	$0.00272
Haiku 4.5	$0.00009	$0.00136

Measured 9d ago against content hash e8047e3a2e94, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

app-it-windows 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 8 executable files (templates/desktop-build.ps1, templates/desktop-icons.ps1, templates/desktop-install.ps1, …), 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-windows/skills/app-it-windows/SKILL.md · 155 lines

How it starts

The opening of the file, as written. The whole thing — 155 lines — stays where its author put it; the contents beside it link to each section on GitHub.

app-it-windows - Make a project launchable on Windows (beta)

Windows beta: scaffolded, untested on real hardware, maintainer wanted.

The macOS app-it lane is proven. This Windows sibling mirrors the contract with Windows primitives, but every runtime behavior that needs a real Windows desktop must be marked deferred: this needs a Windows maintainer - see docs/WINDOWS.md.

Non-Negotiables

Run templates/inspect.ps1 first and read the output before editing.
Trust disk over docs. Verify project type, scripts, ports, and desktop signals from files.
Build everything a Mac or CI can build; never claim Windows runtime behavior works unless it was verified on real Windows hardware.
Prefer the WPF + WebView2 host. Edge --app= is a fallback, not the default.
Keep Windows visibly beta in every report and user-facing summary.
Copy shipped templates and customize through scripts\app-it.config.json. Do not re-derive launcher patterns.
Verify build/lint/config checks, then list hardware-only checks as deferred.

Reference Map

Open only what the inspection or chosen path needs:

references/maintainer-contract.md - what a Mac can produce, what must be deferred, and the exact Windows-maintainer phrase.
references/inspection-and-strategies.md - project inspection, toolchain probes, strategy tree, W-Native, W-Edge, W-Static, W-Multi, B, and D.
references/generated-files.md - template roster, allowed target files, config JSON, package scripts, and Start Menu destination.
references/wrapper-host.md - WebView2 host, lifecycle, Job Object ownership, single-instance behavior, and wrapper argument contract.
references/verification.md - buildable checks, Windows-only checks, and deferred rows.
references/report-template.md - exact beta report format.

Templates

Templates live next to this file in templates/. Copy them into the target project and keep their contracts intact:

templates/
  wrapper-windows/
  desktop-build.ps1
  desktop-install.ps1
  desktop-quit.ps1
  inspect.ps1
  run-template.ps1
  run-template-edge.ps1
  desktop-icons.ps1
  placeholder-icon-gen.ps1
  PSScriptAnalyzerSettings.psd1
  app-it.config.example.json

Read the full file on GitHub · 155 lines

Files

What ships with it

26 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 · 155 lines · 89 tokens per session scan A e8047e3a2e94

Subscribe to this mod's changes

app-it-windows 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 1,361 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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