Maui AI Debugging
Redth/Maui.Gtk
End-to-end workflow for building, deploying, inspecting, and debugging .NET MAUI and MAUI Blazor Hybrid apps as an AI agent.
Guidance for picking photos/videos, capturing from camera, multi-select (.NET 10), MediaPickerOptions, platform permissions, and FileResult handling in .NET MAUI.
$ npx skills add davidortinau/maui-skills --skill maui-media-picker -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install davidortinau/maui-skills maui-media-picker --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/davidortinau/maui-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/maui-skills/skills/maui-media-picker .claude/skills/maui-media-picker && rm -rf skills-srcUse ~/.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/
Install the "maui-media-picker" agent skill from https://github.com/davidortinau/maui-skills/tree/main/plugins/maui-skills/skills/maui-media-picker into .claude/skills/maui-media-picker/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "maui-media-picker", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/davidortinau/maui-skills/tree/main/plugins/maui-skills/skills/maui-media-pickerType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add davidortinau/maui-skills --skill maui-media-picker -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install davidortinau/maui-skills maui-media-picker --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/davidortinau/maui-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/plugins/maui-skills/skills/maui-media-picker .agents/skills/maui-media-picker && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "maui-media-picker" agent skill from https://github.com/davidortinau/maui-skills/tree/main/plugins/maui-skills/skills/maui-media-picker into .agents/skills/maui-media-picker/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "maui-media-picker", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add davidortinau/maui-skills --skill maui-media-picker -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install davidortinau/maui-skills maui-media-picker --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/davidortinau/maui-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/plugins/maui-skills/skills/maui-media-picker .cursor/skills/maui-media-picker && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "maui-media-picker" agent skill from https://github.com/davidortinau/maui-skills/tree/main/plugins/maui-skills/skills/maui-media-picker into .cursor/skills/maui-media-picker/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "maui-media-picker", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/davidortinau/maui-skills.git --path plugins/maui-skills/skills/maui-media-picker--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add davidortinau/maui-skills --skill maui-media-picker -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install davidortinau/maui-skills maui-media-picker --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/davidortinau/maui-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/plugins/maui-skills/skills/maui-media-picker .gemini/skills/maui-media-picker && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "maui-media-picker" agent skill from https://github.com/davidortinau/maui-skills/tree/main/plugins/maui-skills/skills/maui-media-picker into .gemini/skills/maui-media-picker/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "maui-media-picker", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install davidortinau/maui-skills maui-media-pickerInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add davidortinau/maui-skills --skill maui-media-picker -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/davidortinau/maui-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/plugins/maui-skills/skills/maui-media-picker .github/skills/maui-media-picker && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "maui-media-picker" agent skill from https://github.com/davidortinau/maui-skills/tree/main/plugins/maui-skills/skills/maui-media-picker into .github/skills/maui-media-picker/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "maui-media-picker", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add davidortinau/maui-skills --skill maui-media-picker -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install davidortinau/maui-skills maui-media-picker --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/davidortinau/maui-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/plugins/maui-skills/skills/maui-media-picker .opencode/skills/maui-media-picker && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "maui-media-picker" agent skill from https://github.com/davidortinau/maui-skills/tree/main/plugins/maui-skills/skills/maui-media-picker into .opencode/skills/maui-media-picker/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "maui-media-picker", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
maui-media-pickerGuidance for picking photos/videos, capturing from camera, multi-select (.NET 10), MediaPickerOptions, platform permissions, and FileResult handling in .NET MAUI.
Maui Media Picker is an agent skill from davidortinau/maui-skills. Guidance for picking photos/videos, capturing from camera, multi-select (.NET 10), MediaPickerOptions, platform permissions, and FileResult handling in .NET MAUI. USE FOR: "pick photo", "capture photo", "take picture", "pick video", "camera capture", "MediaPicker", "photo gallery", "image picker", "multi-select photos", "MediaPickerOptions". DO NOT USE FOR: general file picking (use maui-file-handling), image display or optimization (use maui-performance), or camera streaming (use maui-platform-invoke).
Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/media-picker-api.md`).
It sits in Mobile, covering Cross-platform mobile apps. It works with .NET and Android. The repository describes itself as: .NET MAUI skills for GitHub Copilot and Claude Code. The licence is MIT.
4 steps, taken from the step headings in SKILL.md.
Read from SKILL.md and the folder at commit 79bb4bf. It shows what the files ask for, not the result of running them.
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.
No scripts in the folder and no shell commands in SKILL.md (its code samples are csharp).
From the folder's file list and the shell code blocks in SKILL.md.
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Maui Media Picker loads about 1.1k tokens when it runs, and up to ~2.1k if it reads all its reference files. Until then it costs about 132 tokens; SKILL.md has 273 words of instructions outside code blocks.
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.
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.
The full file from davidortinau/maui-skills at commit 79bb4bf, republished under its MIT licence (© davidortinau). 273 words, ~1,061 tokens.
.claude/skills/maui-media-picker/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.Single-select returns null, multi-select returns an empty list. Not checking causes NullReferenceException.
// ❌ Crashes when user cancels
var photo = await MediaPicker.Default.PickPhotoAsync();
using var stream = await photo.OpenReadAsync();
// ✅ Always check for null / empty
var photo = await MediaPicker.Default.PickPhotoAsync();
if (photo is null) return;
using var stream = await photo.OpenReadAsync();All MediaPicker methods must run on the UI thread or they throw.
// ❌ Will throw on some platforms
await Task.Run(async () => await MediaPicker.Default.PickPhotoAsync());
// ✅ Call directly from a command or event handler on the UI thread
var photo = await MediaPicker.Default.PickPhotoAsync();Devices without cameras (emulators, some tablets) will throw if you call capture methods.
// ❌ Crashes on devices without a camera
var photo = await MediaPicker.Default.CapturePhotoAsync();
// ✅ Guard with capability check
if (MediaPicker.Default.IsCaptureSupported)
{
var photo = await MediaPicker.Default.CapturePhotoAsync();
}OpenReadAsync() returns a stream that must be disposed.
// ❌ Leaks the stream
var stream = await photo.OpenReadAsync();
var bytes = ReadAllBytes(stream);
// ✅ Dispose with using
using var stream = await photo.OpenReadAsync();MediaPickerOptions.SelectionLimit is advisory. Always validate the count yourself:
var options = new MediaPickerOptions { SelectionLimit = 5 };
var results = await MediaPicker.Default.PickPhotosAsync(options);
if (results.Count() > 5)
{
// Warn user or take only the first 5
results = results.Take(5);
}READ_EXTERNAL_STORAGE / WRITE_EXTERNAL_STORAGEREAD_MEDIA_IMAGES / READ_MEDIA_VIDEO (broad storage permissions are ignored)android:maxSdkVersion="32" on the old permissions to avoid Play Store warningsMissing any one of NSCameraUsageDescription, NSMicrophoneUsageDescription,
NSPhotoLibraryUsageDescription, or NSPhotoLibraryAddUsageDescription causes
a runtime crash when that feature is accessed.
<queries> for camera intentsWithout the IMAGE_CAPTURE query in AndroidManifest.xml, CapturePhotoAsync
may fail silently on Android 11+ due to package visibility restrictions.
| Scenario | Method |
|---|---|
| User picks one photo | PickPhotoAsync() |
| User picks multiple (.NET 10+) | PickPhotosAsync() with SelectionLimit |
| App needs camera capture | Check IsCaptureSupported → CapturePhotoAsync() |
| Save picked file permanently | Copy stream to FileSystem.AppDataDirectory |
| Need photo metadata | Set PreserveMetaData = true in MediaPickerOptions |
IsCaptureSupported guard before capture methodsusingmaxSdkVersion<queries> block for camera intentInfo.plist has all four usage description keysSelectionLimit validated in code, not trusted from platform© davidortinau, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
SKILL.md and 1 other file (references) in plugins/maui-skills/skills/maui-media-picker of davidortinau/maui-skills.
Open the folder on GitHubat commit 79bb4bf
Maui Media Picker 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Maui Media Picker this skilldavidortinau/maui-skills | 175 | — | ~1.1k | Automated safety check: Pass | MIT | |
| Maui AI DebuggingRedth/Maui.Gtk | 101 | — | ~4.1k | Automated safety check: Pass | MIT | |
| .NET MAUI Doctordotnet/skills | 5.6k | 1 repos | ~2.4k | Automated safety check: Pass | MIT | |
| Maui Safe Areadotnet/skills | 5.6k | 1 repos | ~3.2k | Automated safety check: Pass | MIT | |
| MAUI Device Test Runnerdotnet/maui | 23k | — | ~3.3k | Automated safety check: Pass | MIT | |
| MAUI Integration Test Runnerdotnet/maui | 23k | — | ~2.1k | Automated safety check: Pass | MIT |
Redth/Maui.Gtk
End-to-end workflow for building, deploying, inspecting, and debugging .NET MAUI and MAUI Blazor Hybrid apps as an AI agent.
dotnet/skills
Diagnoses and fixes .NET MAUI development environments by checking the .NET SDK, workloads, JDK, Android SDK, Xcode and Windows SDK against requirements read from NuGet.
dotnet/skills
.NET MAUI safe area and edge-to-edge layout guidance for .NET 10+.
dotnet/maui
Builds and runs .NET MAUI device tests locally on iOS simulators, MacCatalyst, Android emulators or Windows, with optional category filtering.
dotnet/maui
Builds and packs .NET MAUI, installs the local workloads and runs integration tests for templates, samples and end-to-end scenarios by category.
flutter/flutter
Generates the "what's new" release summary and diff file for changes in the Flutter engine (//engine/src/flutter) between two releases (e.g., 3.47 vs 3.44).
davidortinau/maui-skills
Diagnose and troubleshoot .NET MAUI Hot Reload issues (C Hot Reload, XAML Hot Reload, Blazor Hybrid).
davidortinau/maui-skills
Guide for making .NET MAUI apps accessible — screen reader support via SemanticProperties, heading levels, AutomationProperties visibility control, programmatic focus and announcements, and…
davidortinau/maui-skills
.NET MAUI view animations, custom animations, easing functions, rotation, scale, translation, and fade effects.
davidortinau/maui-skills
.NET MAUI app icon configuration, splash screen setup, SVG to PNG conversion at build time, composed/adaptive icons, and platform-specific icon and splash screen requirements for Android, iOS, Mac…
davidortinau/maui-skills
.NET MAUI app lifecycle guidance covering the four app states (not running, running, deactivated, stopped), cross-platform Window lifecycle events, backgrounding and resume behaviour…
davidortinau/maui-skills
Guide for .NET MAUI apps consuming .NET Aspire-hosted backend services.
Categories
Guidance for picking photos/videos, capturing from camera, multi-select (.NET 10), MediaPickerOptions, platform permissions, and FileResult handling in .NET MAUI. Maui Media Picker is an agent skill from davidortinau/maui-skills.NET MAUI.
Maui Media Picker fits situations like: multi-select photos; mediaPickerOptions; : general file picking (use maui-file-handling); optimization (use maui-performance).
Run `npx skills add davidortinau/maui-skills --skill maui-media-picker -a claude-code`. Or copy the skill folder (plugins/maui-skills/skills/maui-media-picker in davidortinau/maui-skills) into .claude/skills/maui-media-picker in your project. Claude Code loads it when a task matches its description.
Run `npx skills add davidortinau/maui-skills --skill maui-media-picker -a codex`. Or copy the skill folder (plugins/maui-skills/skills/maui-media-picker in davidortinau/maui-skills) into .agents/skills/maui-media-picker in your project. Codex loads it when a task matches its description.
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add davidortinau/maui-skills --skill maui-media-picker -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/maui-media-picker, .gemini/skills/maui-media-picker, .github/skills/maui-media-picker and .opencode/skills/maui-media-picker in your project.
SKILL.md names no scripts, command-line tools or credentials: Maui Media Picker is instructions for the agent only.
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.
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.
Maui Media Picker is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
About 1.1k tokens (SKILL.md is roughly 4.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 1.1k tokens, read only when the agent opens those files.
Skills that share tags, products or a category with Maui Media Picker: Maui AI Debugging (Redth/Maui.Gtk, 101 stars), .NET MAUI Doctor (dotnet/skills, 5.6k stars), Maui Safe Area (dotnet/skills, 5.6k stars) and MAUI Device Test Runner (dotnet/maui, 23k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
davidortinau (a GitHub user) maintains it in davidortinau/maui-skills, which has 175 GitHub stars. The repository holds 41 skills in this directory. The repository was last updated on July 6, 2026.
Source: davidortinau/maui-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.