Free & Open Source

Your AI writes code.
But does it follow your rules?

AI coding tools are fast — but they forget your patterns, ignore your conventions, and reinvent your architecture. Archgate fixes that. Teach your AI once. It follows your rules every time.

curl -fsSL https://cli.archgate.dev/install-unix | sh

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Sound familiar?

"Put that in /services" you said

Your AI dumped everything in a single file anyway. You reorganized it, asked again, and it ignored your project structure next session.

"Handle errors like we always do"

You showed your AI the codebase conventions. Next conversation, it forgot everything and invented its own patterns from scratch.

Same PR feedback, every time

Every AI-generated pull request needs the same corrections. The same review comments, the same fixes, over and over.

It's not the AI's fault. It simply doesn't have your rules.

A rulebook your AI actually follows

Archgate is a free tool that teaches your AI coding assistants how YOUR team builds software. You write simple rules describing your patterns and conventions. Your AI reads them before writing a single line of code.

Write rules in plain text

Describe how your team does things — your patterns, your conventions, your standards. No complex config files needed.

AI reads them automatically

Claude, Cursor, Copilot — they all read your rules before writing code. No copy-pasting, no repeating yourself.

Gets smarter over time

When a mistake slips through, it becomes a new rule. Your system learns from every error and improves automatically.

How it works

Three steps. Five minutes. Better AI-generated code forever.

Write a rule

Describe how your team does things — in a simple text file with optional automated checks. "Use Tailwind for styling." "API routes go in /api." That's it.

AI follows it

Your AI coding tools read your rules before writing any code. Claude, Cursor, Copilot — they all get the same context, every time.

Checks catch the rest

A fast CLI command verifies every change in milliseconds. Run it locally while you code, or in CI on every pull request. Nothing slips through.

Every mistake the system catches becomes a new rule. Over time, your AI gets better — not just faster.

Works with your AI coding tools

Native plugins for every major AI editor. Install with a single command.

Claude Code

Plugin Available

Full governance plugin with the developer agent plus architect, quality-manager, adr-author, and onboard skills. AI agents read your ADRs, validate compliance, and capture learnings — all automatically.

developer agent architect skill quality-manager skill adr-author skill onboard skill

Cursor

Plugin Available

Developer agent and governance skills for Cursor's AI assistant. Your ADRs become Cursor's governance context, guiding code generation toward your architectural standards.

Developer agent Governance skills ADR context archgate check

VS Code

Extension Available

VS Code extension that distributes Archgate's governance skills directly to GitHub Copilot. Install from the marketplace or via the CLI — your ADRs become Copilot's architectural guardrails.

Marketplace extension Copilot integration CLI install archgate check

GitHub Copilot

Via VS Code Extension

GitHub Copilot reads your ADRs as governance context through the VS Code extension. Architecture decisions guide Copilot's suggestions — no extra configuration needed.

ADR context Architecture guardrails Via VS Code extension

The CLI works with any AI coding editor. archgate check runs anywhere your code does.

Built for everyone using AI to write code

Solo developers

Stop repeating yourself every session. Teach your AI your preferences once — your file structure, your styling approach, your patterns — and it remembers forever.

Development teams

Get every developer and every AI on the same page. New team members — human or AI — learn your architecture from day one. No more "that's not how we do it" in code review.

Organizations

Scale AI adoption without sacrificing consistency. Every repository, every team, every AI agent follows the same standards. Compliance becomes automatic, not overhead.

Common questions

Everything you need to know before getting started

What's the difference between writing my own skills file and using Archgate?

A skills file tells the AI what to do in that one conversation. Archgate ADRs are enforced — the CLI checks your code against the rules automatically, catches violations your AI missed, and works across every tool (Claude Code, Cursor, Copilot). Your skills file has no safety net. Archgate does.

Why is Archgate better than Cursor rules?

Cursor rules only work inside Cursor. Archgate works everywhere — Claude Code, Cursor, VS Code, Copilot, any AI tool. Plus, Archgate rules are validated by automated checks that catch violations even when the AI ignores them. Cursor rules are suggestions; Archgate rules are enforced.

How does Archgate help me save tokens?

Archgate compresses your architecture rules into concise briefings — only the relevant rules for the files you're changing, not your entire documentation. Teams report up to 67% fewer tokens per session because the AI reads a focused 20-line briefing instead of hundreds of lines of context.

I'm a vibe coder, not a traditional developer. Why should I care?

Especially you. When you're relying on AI to write most of your code, you need guardrails even more. Archgate makes sure the AI doesn't silently break things you can't spot yourself. Think of it as quality control you don't have to understand deeply — you set the rules once, and it keeps your project consistent.

Can't I just write rules in markdown and ask the AI to follow them?

You can — and the AI will follow them sometimes. But there's no enforcement. The AI can ignore your markdown, hallucinate different patterns, or forget between sessions. Archgate adds the missing layer: automated validation that catches violations in milliseconds, every time, regardless of which AI tool you use.

Try it in 30 seconds

Install the CLI, run one command, and your AI starts following your rules. Free, open source, and works with every major AI coding tool.