Laravel Agent Detector

Introduction

Agent Detector is a lightweight PHP utility to detect if your code is running inside an AI agent or automated development environment.

Requires PHP 8.2+

Installation

To get started, install Agent Detector via the Composer package manager:

composer require laravel/agent-detector

Usage

use Laravel\AgentDetector\AgentDetector;
use Laravel\AgentDetector\KnownAgent;

$result = AgentDetector::detect();

if ($result->isAgent) {
    echo "Running inside: {$result->name}";
}

// Check for a specific known agent
if ($result->knownAgent() === KnownAgent::Claude) {
    echo "Hello from Claude!";
}

Or use the standalone function:

use function Laravel\AgentDetector\detectAgent;

$result = detectAgent();

Supported Agents

Agent	Detection Method
Custom	AI_AGENT env var
Cursor	CURSOR_AGENT env var
Gemini	GEMINI_CLI env var
Codex	CODEX_SANDBOX, CODEX_CI, or CODEX_THREAD_ID env var
Augment CLI	AUGMENT_AGENT env var
AMP	AMP_CURRENT_THREAD_ID env var
Opencode	OPENCODE_CLIENT or OPENCODE env var
Claude	CLAUDECODE or CLAUDE_CODE env var
Cowork	CLAUDE_CODE_IS_COWORK with CLAUDECODE or CLAUDE_CODE env var
Copilot	AI_AGENT=github-copilot, AI_AGENT=github-copilot-cli, COPILOT_MODEL, COPILOT_ALLOW_ALL, COPILOT_GITHUB_TOKEN, or COPILOT_CLI env var
Replit	REPL_ID env var
Devin	/opt/.devin file exists
Antigravity	ANTIGRAVITY_AGENT env var
Pi	PI_CODING_AGENT env var
Kiro CLI	KIRO_AGENT_PATH env var
v0	AI_AGENT=v0 env var

Custom Agent

Set the AI_AGENT environment variable to any value to identify your custom agent:

AI_AGENT=my-custom-agent php your-script.php

Testing

composer test

Contributing

Thank you for considering contributing to Agent Detector! You can read the contribution guide here.

Code of Conduct

In order to ensure that the Agent Detector community is welcoming to all, please review and abide by the Code of Conduct.

Security Vulnerabilities

Please review our security policy on how to report security vulnerabilities.

License

Agent Detector is open-sourced software licensed under the MIT license.