Customize OpenClaw: Build Your Own AI Assistant Platform from Source to Deployment

OpenClaw is an open-source AI assistant runtime framework supporting multi-model, multi-channel, multi-plugin architectures. But its real power isn't the default configuration — it's the extreme customizability. This article walks you through the entire customization process: config files, personality design, capability extension, and deployment. Whether you're building a dedicated customer service bot, a personality-rich personal assistant, or an enterprise Agent integrated with internal toolchains, OpenClaw has you covered. Before You Start: Understanding the File Structure OpenClaw's configuration has two layers: global config and Workspace files. Understanding both is the foundation for all customization work. The Config File The global config lives at ~/.openclaw/openclaw.json , uses JSON5 format (comments and trailing commas allowed), and undergoes strict schema validation. { // Default model "defaultModel": "anthropic/claude-sonnet-4-20250514", // Gateway port "port": 18789, //