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.
Borrowing it
Nothing to install: this file belongs to unoplatform/uno. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/unoplatform/uno/master/AGENTS.mdgit clone --depth 1 https://github.com/unoplatform/unoWrote 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.
[](https://agentmods.dev/instructions/unoplatform/uno/agents-md)<a href="https://agentmods.dev/instructions/unoplatform/uno/agents-md"><img src="https://agentmods.dev/badge/instructions/unoplatform/uno/agents-md/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.
<a href="https://agentmods.dev/instructions/unoplatform/uno/agents-md"><img src="https://agentmods.dev/badge/instructions/unoplatform/uno/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.05505 | $0.05505 |
| Opus 5.5 | $0.02202 | $0.02202 |
| Sonnet 5.5 | $0.01101 | $0.01101 |
| Haiku 4.5 | $0.00551 | $0.00551 |
Grade A, and why
uno AGENTS.md 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 14d 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.
How it starts
The opening of the file, as written. The whole thing — 410 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
This file provides guidance to AI Agents when working with code in this repository.
Project Overview
Uno Platform is an open-source .NET UI cross-platform framework for building .NET applications from a single codebase using the WinUI 3 API. It targets Web (WebAssembly), Desktop (Windows, macOS, Linux via Skia), and Mobile (iOS, tvOS, Android).
Reference these instructions first, then lean on skills (workflows) and the path-scoped rules below.
Claude Code Skills (invoke via /skill-name)
| Skill | Command | Use For |
|---|---|---|
| Add Sample | /add-sample |
Creating SamplesApp sample pages with correct registration |
| Runtime Tests | /runtime-tests |
Building and running Uno runtime tests (Skia Desktop/WASM) |
| WinUI Runtime Tests | /winui-runtime-tests |
Running runtime tests against native WinUI on Windows (via winapp run — no MSIX packaging, signing or elevation) |
| WinUI Porting | /winui-port |
Porting WinUI C++ code to Uno Platform C# (full deep reference) |
| DevServer | /devserver |
DevServer CLI/Host build, test, MCP proxy, add-in discovery |
| Docs Build | /docs-build |
Building, previewing & validating the docs website (DocFX), incl. external-doc commit bumps in import_external_docs.ps1 |
Pre-commit review (invoke via /review-panel)
/review-panel [scope] runs an eight-lens reviewer panel (architect, contract, skeptic, performance, operability, quality, security, jerome) in parallel and synthesizes one report with a ship / fix-first / block-merge verdict. Run it before you commit or open a PR — pass a scope (master..HEAD, a #PR, HEAD~1) or omit it to auto-detect uncommitted changes / branch-vs-master. The panel learns from corrections recorded in specs/lessons.md. Lenses, scopes, and loop recipes: .claude/review-panel-cheatsheet.md.
Path-scoped rules (.claude/rules/)
These load automatically when you touch matching files — you don't invoke them. They hold the non-obvious, subsystem-specific conventions so this always-loaded file stays lean:
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.
- 14d ago Changed · -3 tokens per session 0bf9feb5a148
- 17d ago Changed · +8 tokens per session 69bf1e62143b
- 25d ago Changed · +17 tokens per session 59b5514d6a62
- 26d ago Changed · +62 tokens per session 53daa2c157b5
- 1mo ago Changed · +3 lines · +122 tokens per session ddbaf6851aee
- 1mo ago Changed · -1 lines · +180 tokens per session 0076a3cbfe00
- 1mo ago Changed · -1 lines · +45 tokens per session db7ccd57f54e
- 1mo ago First seen · 409 lines · 5,074 tokens per session scan A fb0490a3778d
uno AGENTS.md is an instructions file published in the GitHub repository unoplatform/uno (10,079 stars, last pushed today), licensed Apache-2.0. It adds 5,505 tokens to every session, about $0.0220 per session on Opus 5.5. 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.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deno copilot-instructions.md
Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.