- Add get_tool_fields() stub method (required by SimpleTool ABC)
- Add prepare_prompt() implementation using chat-style prompt
- Tool now successfully instantiates and can be registered
- All 4 tools (chat, contentvariant, listmodels, version) working
- Core architecture from zen-mcp-server
- OpenRouter and Gemini provider configuration
- Content variant generator tool (first marketing tool)
- Chat tool for marketing strategy
- Version and model listing tools
- Configuration system with .env support
- Logging infrastructure
- Ready for Claude Desktop integration
