fixes

CLAUDE.md

@@ -3,6 +3,10 @@
 
 This file provides guidance to Claude Code when working with this repository.
 
+## MCP TOOL PARAMETERS - CRITICAL
+- **ALWAYS use snake_case**: `old_string`, `new_string`, `replace_all`
+- **NEVER use camelCase**: `oldString`, `newString`, `replaceAll`
+
 ## Critical Context (Read First)
 - **Tech Stack**: Python 3.11+, Dear PyGui / ImGui, FastAPI, Uvicorn
 - **Main File**: `gui_2.py` (primary GUI), `ai_client.py` (multi-provider LLM abstraction)