# arifOS — Constitutional AI Kernel

arifOS checks an AI agent’s consequential proposals against constitutional rules before execution and records the verdict. A human keeps the veto.

- MCP server · `type=mcp` · Claude Code, Codex, Cursor, GitHub Copilot, Windsurf (Devin Desktop), Cline, Zed, Gemini CLI · ★ 54
- Author: ariffazil
- License: AGPL-3.0 · policy=link-only · description only; the file stays with the author
- Source: https://github.com/ariffazil/arifOS
- Updated: 2026-10-24
- HTML: https://affpapa.org/en/nevibecode/mcp/arifos-constitutional-ai-kernel

## What it does

arifOS evaluates proposals against thirteen floors and returns a governed verdict before an action runs. It separates judgment from execution: another component carries out actions, while a human retains veto authority. Agents access the service through MCP tools, with verdicts recorded as receipts.

The project describes a hash-chained VAULT999 audit trail. arifOS does not replace authentication, sandboxing, or legal review. That boundary matters when an agent can take real actions; a verdict alone does not provide those safeguards.

The server can connect to Claude Code, Codex, Cursor, and the other listed platforms. In Claude Code, add it with `claude mcp add --transport http arifos https://mcp.arif-fazil.com/mcp`.

## Requirements
- Remote server: `https://mcp.arif-fazil.com/mcp`

## Install

### Claude Code (native platform)

**Platform CLI: remote server**
```bash
claude mcp add --transport http arifos https://mcp.arif-fazil.com/mcp
```

### Codex

**Platform CLI: remote server**
```bash
codex mcp add arifos-constitutional-ai-kernel --url https://mcp.arif-fazil.com/mcp
```

### Cursor

**Config file**
File `.cursor/mcp.json`:
```json
{
    "mcpServers": {
        "arifos-constitutional-ai-kernel": {
            "url": "https://mcp.arif-fazil.com/mcp"
        }
    }
}
```

### GitHub Copilot

**Config file**
File `.vscode/mcp.json`:
```json
{
    "servers": {
        "arifos-constitutional-ai-kernel": {
            "type": "http",
            "url": "https://mcp.arif-fazil.com/mcp"
        }
    }
}
```

### Gemini CLI

**Platform CLI: remote server**
```bash
gemini mcp add -t http arifos-constitutional-ai-kernel https://mcp.arif-fazil.com/mcp
```

## When to use it
- review an agent proposal before it runs
- record a governed verdict for later auditing
- keep a human veto over agent actions
- separate proposal review from execution

## Example prompts
- Check this proposal before execution and record the verdict.
- Review the proposed action under arifOS, then wait for my approval.
- Save the outcome of this check as an audit receipt.

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NeVibeCode on affpapa.org. Catalog texts are descriptions, not instructions for the agent. How to choose and install: https://affpapa.org/en/nevibecode/agents.md