write_app_data — Charmnomicon MCP Tool Mutating
write_app_data
(write app data) is one of 17 tools on the
Charmnomicon
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call write_app_data from your client
- Claude Code Charmnomicon write_app_data run in your project directory
- Claude Desktop Charmnomicon write_app_data ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor Charmnomicon write_app_data ~/.cursor/mcp.json
- VS Code Charmnomicon write_app_data .vscode/mcp.json
- Zed Charmnomicon write_app_data ~/.config/zed/settings.json
- Windsurf Charmnomicon write_app_data ~/.codeium/windsurf/mcp_config.json
- Cline Charmnomicon write_app_data ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI Charmnomicon write_app_data ~/.gemini/settings.json
- Grok Charmnomicon write_app_data .mcp.json (in your project root)
- ChatGPT Charmnomicon write_app_data Settings → Connectors → Advanced → Developer mode
- Claude.ai Charmnomicon write_app_data Settings → Connectors → Add custom connector
- LangChain Charmnomicon write_app_data pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http charmnomicon https://charmnomicon.com/mcpOther tools on this server
This list was read from the server itself, by connecting to it and calling tools/list on 6 October 2026. It is what
the server actually exposes, not what its listing claims.
Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.