EasyEDA Pro API skill for AI agents. Use when working with EasyEDA Pro EDA software, including PCB design, schematic editing, footprint/symbol management, and project operations. Supports live debugging in EasyEDA and EasyEDA extension development. Provides complete API reference (120+ classes, 62 enums, 70 interfaces), extension-development documentation, and a WebSocket bridge server to execute code in the running EasyEDA Pro client. Trigger on: "嘉立创EDA，启动！", "立创EDA，启动！", "EDA，启动！", "EasyEDA", "PCB", "schematic", "footprint", "EDA", "circuit board", "嘉立创EDA", "原理图", "PCB设计". **IMPORTANT**: 嘉立创EDA's English name is **EasyEDA**. They are the SAME product. Never use other transliterations like "EasyEDA Pro" (unless specifically versioned), "EASYEDA", "easyeda", etc. Always use "EasyEDA" for English references and "嘉立创EDA" for Chinese references.
- Major expansion of API documentation: 54 new files and 87 updated, including new interface reference files for extension and UI/grid development. - Added guide for AI integration: new "how-to-start-for-ai.md" with instructions tailored for AI agent usage. - Extended class coverage: new documentation for classes such as PCB_ImageTool, SYS_ExternalApi, and SYS_Help. - Updated and reorganized skill metadata for versioning consistency. - Removed obsolete files: deprecated type and skill card references eliminated for clarity. - Improved and updated quick reference and main index documentation for easier API lookup and navigation.