https://blog.margrop.net/en/tag/tool-calling/ Recent content in Tool Calling on Margrop Blog Hugo -- gohugo.io en-US Sun, 19 Jul 2026 22:00:00 +0800 https://blog.margrop.net/en/post/ai-tool-calling-mcp/ Sun, 19 Jul 2026 22:00:00 +0800 https://blog.margrop.net/en/post/ai-tool-calling-mcp/ <blockquote> <p><strong>The short answer</strong></p> <p>AI did not suddenly grow hands. It learned a very practical loop: <strong>decide which tool is needed, request that tool with structured arguments, wait for a real result, and then explain the result in human language.</strong></p> <p>This is usually called <strong>Tool Calling</strong>. You may also see Function Calling or a Tools API. MCP, the Model Context Protocol, is closer to a universal socket: different AI applications can discover and call files, databases, search engines, ticket systems, browsers, and other capabilities through a common protocol.</p> <p>This article opens the loop and examines every moving part: what the model does, who actually performs the action, why MCP matters, where permissions belong, and why “can call a tool” does not mean “should receive the keys to everything.” Screenshots come from official OpenAI and MCP pages; the terminal-style evidence images are generated from the real invocation flow. No real private network address or hostname is included.</p> </blockquote>