Open-source platform for building cross-platform native Mobile, Web, Desktop, and Embedded apps from a single C#/XAML codebase. Work from any IDE/CLI with Hot Reload, Visual Designer, MCPs, and Skills built for modern .NET workflows. 200M+ NuGet downloads.
Uno Platform is an open-source .NET development platform that lets developers build native mobile, web, desktop, and embedded applications from one C# and XAML codebase. It is intended for .NET developers who want to share application code across multiple operating systems and device types. The catalogue entries support development workflows for Uno Platform with skills, agents, commands, and instructions.
Latest release 6.6.166 · 30 Jul 2026
These files are unoplatform/uno's own configuration. They tell Claude Code, GitHub Copilot, Codex and OpenCode how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.
AGENTS.md A 5,119 tok CLAUDE.md A 67 tok .claude/skills/add-sample/SKILL.md A 21 tok .claude/skills/devserver/SKILL.md A 79 tok .claude/skills/docs-build/SKILL.md A 97 tok .claude/skills/runtime-tests/SKILL.md A 25 tok .claude/skills/speckit-analyze/SKILL.md A 32 tok .claude/skills/speckit-checklist/SKILL.md A 19 tok .claude/skills/speckit-clarify/SKILL.md A 34 tok .claude/skills/speckit-constitution/SKILL.md A 27 tok .claude/skills/speckit-git-commit/SKILL.md A 18 tok .claude/skills/speckit-git-feature/SKILL.md A 16 tok .claude/skills/speckit-git-initialize/SKILL.md A 16 tok .claude/skills/speckit-git-remote/SKILL.md A 16 tok .claude/skills/speckit-git-validate/SKILL.md A 16 tok .claude/skills/speckit-implement/SKILL.md A 20 tok .claude/skills/speckit-plan/SKILL.md A 19 tok .claude/skills/speckit-specify/SKILL.md A 19 tok .claude/skills/speckit-tasks/SKILL.md A 24 tok .claude/skills/speckit-taskstoissues/SKILL.md A 28 tok .claude/skills/winui-port/SKILL.md A 24 tok .claude/skills/winui-runtime-tests/SKILL.md A 35 tok .claude/commands/review-panel.md A 46 tok .github/prompts/speckit.git.commit.prompt.md A — .github/prompts/speckit.git.feature.prompt.md A — .github/prompts/speckit.git.initialize.prompt.md A — .github/prompts/speckit.git.remote.prompt.md A — .github/prompts/speckit.git.validate.prompt.md A — .claude/agents/architect.md A 61 tok .claude/agents/contract.md A 85 tok .claude/agents/jerome.md A — .claude/agents/operability.md A 82 tok .claude/agents/performance.md A 59 tok .claude/agents/quality.md A 73 tok .claude/agents/security.md A 85 tok .claude/agents/skeptic.md A 62 tok