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.

Agent Detector Laravel Package