AI Coding Agents | Complete Setup Guides for Hermes, OpenClaw, Codex, Claude, OpenCode

AI Coding Agents - Complete Guide

AI agents are autonomous or semi-autonomous systems that can perform tasks, write code, and assist with development workflows. This section covers the major AI coding agents available today.

What is an AI Agent?

An AI agent is software that:

• Understands context - Reads your codebase, files, and project structure
• Takes actions - Runs commands, edits files, executes code
• Makes decisions - Chooses which tools to use based on the task
• Learns from feedback - Adapts based on your corrections and preferences

Quick Comparison

Agent	Type	Best For	Price	Multi-Provider
Hermes	CLI	Complex workflows, automation	Free/Paid	✅
OpenClaw	CLI/IDE	Code generation, refactoring	Free	✅
Claude Code	CLI	General coding, analysis	Paid	❌
OpenCode	CLI	Open-source flexibility	Free	✅
Codex	CLI	OpenAI integration	Usage-based	✅
Cursor	IDE	AI-powered editor	$20/mo	Partial
Cody	IDE/CLI	Sourcegraph integration	$9/mo	Partial
Continue	IDE	Universal IDE assistant	Free	✅
Supermaven	IDE	Fast completions	$10/mo	❌

Categories

Terminal/CLI Agents

These agents run in your terminal and work with any editor:

• Hermes - Full-featured with sub-agents and plugins
• OpenClaw - Code-focused with strong refactoring
• Claude Code - Anthropic’s official CLI tool
• OpenCode - Open-source, highly configurable
• Codex - OpenAI’s coding agent

IDE Extensions

These integrate directly into your code editor:

• Cursor - VSCode fork with built-in AI
• Windsurf - AI-native IDE
• Cody - Works in VSCode, IntelliJ, Neovim
• Continue - Universal assistant for any IDE
• GitHub Copilot - GitHub/Microsoft’s assistant

Hybrid Agents

Work both in terminal and IDE:

• OpenClaw - CLI + IDE extensions
• Continue - IDE-first with terminal support
• Cody - IDE + CLI

Choosing an Agent

For Complex Automation Tasks

→ Hermes

• Sub-agent orchestration
• Persistent memory
• 100+ built-in tools

For Code Generation Focus

→ OpenClaw

• Language-agnostic
• Strong refactoring
• Auto-test generation

For Open Source Preference

→ OpenCode

• Fully open source
• JSON-based config
• Active community

For Anthropic Claude Users

→ Claude Code

• Official Anthropic tool
• Deep Claude integration
• Desktop GUI available

For OpenAI Users

→ Codex

• OpenAI’s official agent
• Best GPT-4o integration
• Usage-based pricing

For IDE Integration

→ Cursor or Continue

• Native IDE experience
• Context-aware suggestions
• Real-time assistance

Feature Matrix

Feature	Hermes	OpenClaw	Claude Code	OpenCode	Codex	Cursor
Terminal-based	✅	✅	✅	✅	✅	❌
IDE Extension	❌	✅	❌	❌	❌	✅
Multi-provider	✅	✅	❌	✅	Partial	Partial
Sub-agents	✅	❌	❌	❌	❌	❌
Code refactoring	✅	✅	✅	✅	✅	✅
Test generation	✅	✅	❌	❌	⚠️	⚠️
Autonomous mode	✅	❌	❌	❌	⚠️	❌
Free tier	Partial	✅	❌	✅	Partial	❌

Getting Started

For Beginners

1. Start with OpenCode - Free, open-source, easy to configure
2. Or try Continue - IDE extension, works with any provider
3. Use free tiers - Most providers offer free credits

For Teams

1. Standardize on one agent - Easier to share configurations
2. Consider Cody - Good team features and codebase understanding
3. Set up shared configs - Use version-controlled configuration files

For Advanced Users

1. Try Hermes - Powerful automation and sub-agent features
2. Experiment with OpenClaw - Strong code generation capabilities
3. Build custom tools - Extend agents with your own tools

Common Workflows

New Project Setup

# Hermes
hermes "Create a React + TypeScript project with testing setup"

# OpenClaw
openclaw generate "Initialize Node.js project with Express and TypeScript"

# OpenCode
opencode "Scaffold a Python FastAPI project with SQLAlchemy"

Code Review

# Hermes
hermes "Review src/ directory for security issues"

# OpenClaw
openclaw review src/

# Claude Code
claude "Analyze this codebase for potential bugs"

Refactoring

# OpenClaw
openclaw refactor src/ --target "convert to TypeScript"

# Cursor
# Use /refactor command in IDE

# Cody
# Use refactoring recipes

Configuration Files

Most agents use configuration files. Here are common locations:

Agent	Config File
Hermes	~/.hermes/config.yaml
OpenClaw	~/.openclaw/config.json or .openclaw.json
OpenCode	opencode.json
Continue	~/.continue/config.json
Cody	.cody/settings.json

Environment Variables

All agents support API keys via environment variables:

export OPENAI_API_KEY="sk-..."
export ANTHROPIC_API_KEY="sk-ant-..."
export GEMINI_API_KEY="..."
export GROQ_API_KEY="gsk_..."

Next Steps

• Read detailed guides for specific agents
• Compare providers to choose your LLM backend
• Follow integration guides for your editor
• Check troubleshooting if you run into issues