A few days ago I posted MCPShark (a traffic inspector for the Model Context Protocol). I just shipped a VS Code / Cursor extension that lets you view MCP traffic directly in the editor, so you’re not jumping between terminals, logs, and "I think this is what got sent".

VS Code Marketplace: https://marketplace.visualstudio.com/items?itemName=MCPShark...

Main repo: https://github.com/mcp-shark/mcp-shark

Feature requests / issues: https://github.com/mcp-shark/mcp-shark/issues

Site: https://mcpshark.sh/

If you’re building MCP agents/tools: what would make MCP debugging actually easy—timeline view, session grouping, diffing tool args, exporting traces, something else? I’d be thankful if you could open a feature request here: https://github.com/mcp-shark/mcp-shark/issues