Developer Tools on Rusty Eddyhttps://rustyeddy.com/categories/developer-tools/Recent content in Developer Tools on Rusty EddyHugoen-usWed, 03 Jun 2026 19:39:48 -0700Exposing a Go App as Claude MCP Toolshttps://rustyeddy.com/notes/mcp-claude-tools/Fri, 22 May 2026 00:00:00 +0000https://rustyeddy.com/notes/mcp-claude-tools/<p>The Model Context Protocol (MCP) lets Claude call external tools defined by your application. Instead of pasting data into a chat window or writing one-off scripts to query your system, you define tools with typed schemas, start an MCP server, and Claude can call them directly — in Claude Code, Claude Desktop, or any MCP-compatible client.</p> <p>The <a href="https://github.com/rustyeddy/trader">Trader</a> project uses this to expose its Forex trading engine as Claude tools: query your OANDA account, review open trades, run a backtest against historical data, and — when explicitly enabled — place or close orders.</p>