maui-labs: Skill for Claude Code

.github/skills/maui-devflow-onboard/SKILL.md

maui-devflow-onboard is a skill for Claude Code, Codex from dotnet/maui-labs. It costs 130 tokens per session (1,358 once invoked), scanned A, original, MIT.

Instructions for adding DevFlow to a .NET MAUI app. .NET MAUI is a framework for building apps for platforms such as Android, iOS, Windows, and macOS from shared code.

In plain words
What is it for?
Use it after running the DevFlow initialization command to add package references, register DevFlow, choose the right app variant, and verify the setup.
Why use it?
It identifies the required packages and setup for different app variants, including Blazor WebView and GTK. It keeps onboarding separate from debugging connection or build problems.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

This is dotnet/maui-labs's own configuration. It tells Claude Code and Codex how to work on maui-labs itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything maui-labs configures →

Reuse

Borrowing it

Nothing to install: this file belongs to dotnet/maui-labs. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/dotnet/maui-labs/main/.github/skills/maui-devflow-onboard/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/dotnet/maui-labs

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 maui-devflow-onboard

README.md
[![agentmods](https://agentmods.dev/badge/skills/dotnet/maui-labs/maui-devflow-onboard/github.svg)](https://agentmods.dev/skills/dotnet/maui-labs/maui-devflow-onboard)
Your own site
<a href="https://agentmods.dev/skills/dotnet/maui-labs/maui-devflow-onboard"><img src="https://agentmods.dev/badge/skills/dotnet/maui-labs/maui-devflow-onboard/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 maui-devflow-onboard

Your own site · 80×15
<a href="https://agentmods.dev/skills/dotnet/maui-labs/maui-devflow-onboard"><img src="https://agentmods.dev/badge/skills/dotnet/maui-labs/maui-devflow-onboard.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 130 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,358 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00130 $0.01358
Opus 5 $0.00065 $0.00679
Sonnet 5 $0.00026 $0.00272
Haiku 4.5 $0.00013 $0.00136

Measured 4d ago against content hash 181bf4069dbc, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

maui-devflow-onboard 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.

.github/skills/maui-devflow-onboard/SKILL.md · 141 lines

How it starts

The opening of the file, as written. The whole thing — 141 lines — stays where its author put it; the contents beside it link to each section on GitHub.

DevFlow Onboard

Use this skill to add MAUI DevFlow to a project after maui devflow init has installed the DevFlow skills.

When to Use

  • The project has no Microsoft.Maui.DevFlow.* package references yet.
  • The user asks how to onboard, initialize, install, integrate, or set up DevFlow.
  • The agent needs to choose between standard, Blazor, GTK, or GTK + Blazor DevFlow packages.
  • The repo uses Central Package Management and package edits need to be split correctly.
  • maui devflow init has installed skills and the user asks for the next project edits.

Route Elsewhere

  • If package references and AddMauiDevFlowAgent() are already present but the CLI cannot connect, use maui-devflow-debug.
  • If an agent is reachable and the user wants to inspect, tap, screenshot, or debug UI, use maui-devflow-debug.

Workflow

  1. Optionally run maui devflow skills check and update bundled skills before editing if it reports update-available-from-current-cli.

  2. Find MAUI app projects in the workspace. Prefer app projects with UseMaui, platform TFMs such as net*-android/net*-ios/net*-maccatalyst/net*-windows, or GTK MAUI package references.

  3. Determine whether each target project is standard MAUI, MAUI + Blazor WebView, GTK, or GTK + Blazor.

  4. Add the correct DevFlow package references. Respect Central Package Management if Directory.Packages.props is present.

  5. Register DevFlow in MauiProgram.cs inside #if DEBUG.

  6. Build and run the app.

  7. Verify with:

    maui devflow diagnose
    maui devflow wait
    maui devflow ui tree --depth 1
    

If verification fails after integration, switch to maui-devflow-debug for connectivity recovery.

Stop Signals

  • Stop before editing if multiple MAUI app projects exist and the user has not indicated which one to onboard.
  • Stop and ask before enabling DevFlow outside Debug builds.
  • Stop after package/registration edits and verify with a build before doing runtime debugging.

Critical Anti-patterns

Read the full file on GitHub · 141 lines

Files

What ships with it

2 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.

  1. 4d ago Changed · -2 lines · +54 tokens per session 181bf4069dbc
  2. 9d ago First seen · 143 lines · 76 tokens per session scan A 9b5adcfa268f

Subscribe to this mod's changes

maui-devflow-onboard is a skill published in the GitHub repository dotnet/maui-labs (213 stars, last pushed today), licensed MIT. It adds 130 tokens to every session and 1,358 once invoked, about $0.0006 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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