I Created CUSTOM AI Tools with THIS Simple Trick - Opencode Tools

Discover how to build unlimited custom AI functions with OpenCode Custom Tools - a game-changing feature that gives you complete control over your development workflow without the security risks of MCP protocols. After 14 years of building production systems, I was stuck choosing between limited built-in AI tools or risky external dependencies from MCPs. OpenCode Custom Tools changes everything by letting you create secure, custom functions that your AI can call directly during conversations. 💼 WORK WITH ME: Ready to implement AI workflow automation for your team? Book a free 15-minute consultation: https://cal.com/darrenhinde/ai-strate... **What You'll Learn:** ✅ How to create custom tools in minutes (not hours) ✅ Why Custom Tools are more secure than MCP protocols ✅ Live demos of text extraction and image generation tools ✅ Real-world workflow integration examples ✅ How to build a complete landing page with AI-generated images **Key Benefits:** 🔒 **Better Security** - No external processes or network dependencies ⚡ **Unlimited Customization** - Build exactly what your workflow needs 🚀 **Zero Configuration** - File name becomes tool name automatically 💪 **Complete Control** - You own the entire stack ## Timestamps: 0:00 - Hook: Unlimited AI extensibility with better security 0:46 - OpenCode Custom Tools documentation overview 1:02 - Setting up your first custom tool 1:54 - Creating the .opencode/tool directory structure 2:15 - Installing dependencies with bun 2:29 - Creating a simple joke tool example 4:03 - Setting up agents to use custom tools 4:13 - Live demo: Testing the joke tool in OpenCode 5:18 - Advanced Integration: Building powerful custom tools 5:32 - Gemini Nano Banana API integration for image generation 6:39 - Live demo: Creating a complete landing page with images 7:13 - Results: Full website with AI-generated assets 8:08 - Security comparison: Custom Tools vs MCP protocols 8:48 - Why Custom Tools eliminate external attack surfaces 9:13 - Challenge: Build your own custom tool 9:33 - Real-world examples and use cases 10:33 - Subscribe for more advanced tooling patterns ## Resources: 🔗 **OpenCode Documentation: https://opencode.ai/docs/ 🔗 **Starter Template:** Copy the code from the video 🔗 **My OpenCode Agents Repo:** https://github.com/darrenhinde/opencode-agents/blob/main/README.md 🔗 **Gemini Nano Banana API:** https://ai.google.dev/gemini-api/docs