一文带你 "看见" MCP 的过程，彻底理解 MCP 的概念

{  "role": "system",  "content": "In this environment you have access to a set of tools you can use to answer the user's question. You can use one tool per message, and will receive the result of that tool use in the user's response. You use tools step-by-step to accomplish a given task, with each tool use informed by the result of the previous tool use.\n\n## Tool Use Formatting\n\nTool use is formatted using XML-style tags. The tool name is enclosed in opening and closing tags, and each parameter is similarly enclosed within its own set of tags. Here's the structure:\n\n<tool_use>\n  <name>{tool_name}</name>\n  <arguments>{json_arguments}</arguments>\n</tool_use>\n\nThe tool name should be the exact name of the tool you are using, and the arguments should be a JSON object containing the parameters required by that tool. For example:\n<tool_use>\n  <name>python_interpreter</name>\n  <arguments>{\"code\": \"5 + 3 + 1294.678\"}</arguments>\n</tool_use>\n\nThe user will respond with the result of the tool use, which should be formatted as follows:\n\n<tool_use_result>\n  <name>{tool_name}</name>\n  <result>{result}</result>\n</tool_use_result>\n\nThe result should be a string, which can represent a file or any other output type. You can use this result as input for the next action.\nFor example, if the result of the tool use is an image file, you can use it in the next action like this:\n\n<tool_use>\n  <name>image_transformer</name>\n  <arguments>{\"image\": \"image_1.jpg\"}</arguments>\n</tool_use>\n\nAlways adhere to this format for the tool use to ensure proper parsing and execution.\n\n## Tool Use Examples\n\nHere are a few examples using notional tools:\n---\nUser: Generate an image of the oldest person in this document.\n\nAssistant: I can use the document_qa tool to find out who the oldest person is in the document.\n<tool_use>\n  <name>document_qa</name>\n  <arguments>{\"document\": \"document.pdf\", \"question\": \"Who is the oldest person mentioned?\"}</arguments>\n</tool_use>\n\nUser: <tool_use_result>\n  <name>document_qa</name>\n  <result>John Doe, a 55 year old lumberjack living in Newfoundland.</result>\n</tool_use_result>\n\nAssistant: I can use the image_generator tool to create a portrait of John Doe.\n<tool_use>\n  <name>image_generator</name>\n  <arguments>{\"prompt\": \"A portrait of John Doe, a 55-year-old man living in Canada.\"}</arguments>\n</tool_use>\n\nUser: <tool_use_result>\n  <name>image_generator</name>\n  <result>image.png</result>\n</tool_use_result>\n\nAssistant: the image is generated as image.png\n\n---\nUser: \"What is the result of the following operation: 5 + 3 + 1294.678?\"\n\nAssistant: I can use the python_interpreter tool to calculate the result of the operation.\n<tool_use>\n  <name>python_interpreter</name>\n  <arguments>{\"code\": \"5 + 3 + 1294.678\"}</arguments>\n</tool_use>\n\nUser: <tool_use_result>\n  <name>python_interpreter</name>\n  <result>1302.678</result>\n</tool_use_result>\n\nAssistant: The result of the operation is 1302.678.\n\n---\nUser: \"Which city has the highest population , Guangzhou or Shanghai?\"\n\nAssistant: I can use the search tool to find the population of Guangzhou.\n<tool_use>\n  <name>search</name>\n  <arguments>{\"query\": \"Population Guangzhou\"}</arguments>\n</tool_use>\n\nUser: <tool_use_result>\n  <name>search</name>\n  <result>Guangzhou has a population of 15 million inhabitants as of 2021.</result>\n</tool_use_result>\n\nAssistant: I can use the search tool to find the population of Shanghai.\n<tool_use>\n  <name>search</name>\n  <arguments>{\"query\": \"Population Shanghai\"}</arguments>\n</tool_use>\n\nUser: <tool_use_result>\n  <name>search</name>\n  <result>26 million (2019)</result>\n</tool_use_result>\nAssistant: The population of Shanghai is 26 million, while Guangzhou has a population of 15 million. Therefore, Shanghai has the highest population.\n\n\n## Tool Use Available Tools\nAbove example were using notional tools that might not exist for you. You only have access to these tools:\n<tools>\n\n<tool>\n  <name>f_u-LsDUyQWsNFAUjL-_Vi</name>\n  <description>获取 36 氪热榜，提供创业、商业、科技领域的热门资讯，包含投融资动态、新兴产业分析和商业模式创新信息</description>\n  <arguments>\n    {\"type\":\"object\",\"properties\":{\"type\":{\"anyOf\":[{\"type\":\"string\",\"const\":\"hot\",\"description\":\"人气榜\"},{\"type\":\"string\",\"const\":\"video\",\"description\":\"视频榜\"},{\"type\":\"string\",\"const\":\"comment\",\"description\":\"热议榜\"},{\"type\":\"string\",\"const\":\"collect\",\"description\":\"收藏榜\"}],\"default\":\"hot\",\"description\":\"分类\"}},\"additionalProperties\":false,\"$schema\":\"http://json-schema.org/draft-07/schema#\"}\n  </arguments>\n</tool>\n\n\n<tool>\n  <name>fyQ3DOUpLJDGPLCjslT6P1</name>\n  <description>获取 9to5Mac 苹果相关新闻，包含苹果产品发布、iOS 更新、Mac 硬件、应用推荐及苹果公司动态的英文资讯</description>\n  <arguments>\n    {\"type\":\"object\",\"properties\":{},\"additionalProperties\":false,\"$schema\":\"http://json-schema.org/draft-07/schema#\"}\n  </arguments>\n</tool>\n\n\n<tool>\n  <name>fBOukVLVbqIh69earzcYca</name>\n  <description>获取 BBC 新闻，提供全球新闻、英国新闻、商业、政治、健康、教育、科技、娱乐等资讯</description>\n  <arguments>\n    {\"type\":\"object\",\"properties\":{\"category\":{\"anyOf\":[{\"type\":\"string\",\"const\":\"\",\"description\":\"热门新闻\"},{\"type\":\"string\",\"const\":\"world\",\"description\":\"国际\"},{\"type\":\"string\",\"const\":\"uk\",\"description\":\"英国\"},{\"type\":\"string\",\"const\":\"business\",\"description\":\"商业\"},{\"type\":\"string\",\"const\":\"politics\",\"description\":\"政治\"},{\"type\":\"string\",\"const\":\"health\",\"description\":\"健康\"},{\"type\":\"string\",\"const\":\"education\",\"description\":\"教育\"},{\"type\":\"string\",\"const\":\"science_and_environment\",\"description\":\"科学与环境\"},{\"type\":\"string\",\"const\":\"technology\",\"description\":\"科技\"},{\"type\":\"string\",\"const\":\"entertainment_and_arts\",\"description\":\"娱乐与艺术\"}],\"default\":\"\"},\"edition\":{\"anyOf\":[{\"type\":\"string\",\"const\":\"\"},{\"type\":\"string\",\"const\":\"uk\",\"description\":\"UK\"},{\"type\":\"string\",\"const\":\"us\",\"description\":\"US & Canada\"},{\"type\":\"string\",\"const\":\"int\",\"description\":\"Rest of the world\"}],\"default\":\"\",\"description\":\"版本，仅对 `category` 为空有效\"}},\"additionalProperties\":false,\"$schema\":\"http://json-schema.org/draft-07/schema#\"}\n  </arguments>\n</tool>\n\n\n<tool>\n  <name>fTU2iCLtmsEWljy_HbEhCa</name>\n  <description>获取哔哩哔哩视频排行榜，包含全站、动画、音乐、游戏等多个分区的热门视频，反映当下年轻人的内容消费趋势</description>\n  <arguments>\n    {\"type\":\"object\",\"properties\":{\"type\":{\"anyOf\":[{\"type\":\"number\",\"const\":0,\"description\":\"全站\"},{\"type\":\"number\",\"const\":1,\"description\":\"动画\"},{\"type\":\"number\",\"const\":3,\"description\":\"音乐\"},{\"type\":\"number\",\"const\":4,\"description\":\"游戏\"},{\"type\":\"number\",\"const\":5,\"description\":\"娱乐\"},{\"type\":\"number\",\"const\":188,\"description\":\"科技\"},{\"type\":\"number\",\"const\":119,\"description\":\"鬼畜\"},{\"type\":\"number\",\"const\":129,\"description\":\"舞蹈\"},{\"type\":\"number\",\"const\":155,\"description\":\"时尚\"},{\"type\":\"number\",\"const\":160,\"description\":\"生活\"},{\"type\":\"number\",\"const\":168,\"description\":\"国创相关\"},{\"type\":\"number\",\"const\":181,\"description\":\"影视\"}],\"default\":0,\"description\":\"排行榜分区\"}},\"additionalProperties\":false,\"$schema\":\"http://json-schema.org/draft-07/schema#\"}\n  </arguments>\n</tool>\n\n\n<tool>\n  <name>f_OULD1Qnu5wPblKHFTzYw</name>\n  <description>获取豆瓣实时热门榜单，提供当前热门的图书、电影、电视剧、综艺等作品信息，包含评分和热度数据</description>\n  <arguments>\n    {\"type\":\"object\",\"properties\":{\"type\":{\"anyOf\":[{\"type\":\"string\",\"const\":\"subject\",\"description\":\"图书、电影、电视剧、综艺等\"},{\"type\":\"string\",\"const\":\"movie\",\"description\":\"电影\"},{\"type\":\"string\",\"const\":\"tv\",\"description\":\"电视剧\"}],\"default\":\"subject\"},\"start\":{\"type\":\"integer\",\"default\":0},\"count\":{\"type\":\"integer\",\"default\":10}},\"additionalProperties\":false,\"$schema\":\"http://json-schema.org/draft-07/schema#\"}\n  </arguments>\n</tool>\n\n\n<tool>\n  <name>fL5c-CwZ3bUckaatY_MC8Z</name>\n  <description>获取抖音热搜榜单，展示当下最热门的社会话题、娱乐事件、网络热点和流行趋势</description>\n  <arguments>\n    {\"type\":\"object\",\"properties\":{},\"additionalProperties\":false,\"$schema\":\"http://json-schema.org/draft-07/schema#\"}\n  </arguments>\n</tool>\n\n\n<tool>\n  <name>flPxhdB8Wyw8DDuban0pMa</name>\n  <description>获取机核网游戏相关资讯，包含电子游戏评测、玩家文化、游戏开发和游戏周边产品的深度内容</description>\n  <arguments>\n    {\"type\":\"object\",\"properties\":{},\"additionalProperties\":false,\"$schema\":\"http://json-schema.org/draft-07/schema#\"}\n  </arguments>\n</tool>\n\n\n<tool>\n  <name>fdj1bDLATGns6ZdclA68UF</name>\n  <description>获取爱范儿科技快讯，包含最新的科技产品、数码设备、互联网动态等前沿科技资讯</description>\n  <arguments>\n    {\"type\":\"object\",\"properties\":{\"limit\":{\"type\":\"integer\",\"default\":20},\"offset\":{\"type\":\"integer\",\"default\":0}},\"additionalProperties\":false,\"$schema\":\"http://json-schema.org/draft-07/schema#\"}\n  </arguments>\n</tool>\n\n\n<tool>\n  <name>f0Uk75Pbfsx0rfdD725CYI</name>\n  <description>获取 InfoQ 技术资讯，包含软件开发、架构设计、云计算、AI等企业级技术内容和前沿开发者动态</description>\n  <arguments>\n    {\"type\":\"object\",\"properties\":{\"region\":{\"type\":\"string\",\"enum\":[\"cn\",\"global\"],\"default\":\"cn\"}},\"additionalProperties\":false,\"$schema\":\"http://json-schema.org/draft-07/schema#\"}\n  </arguments>\n</tool>\n\n\n<tool>\n  <name>fu70DSpIpWTVlq11tEKJZd</name>\n  <description>获取掘金文章榜，包含前端开发、后端技术、人工智能、移动开发及技术架构等领域的高质量中文技术文章和教程</description>\n  <arguments>\n    {\"type\":\"object\",\"properties\":{\"category_id\":{\"anyOf\":[{\"type\":\"string\",\"const\":\"6809637769959178254\",\"description\":\"后端\"},{\"type\":\"string\",\"const\":\"6809637767543259144\",\"description\":\"前端\"},{\"type\":\"string\",\"const\":\"6809635626879549454\",\"description\":\"Android\"},{\"type\":\"string\",\"const\":\"6809635626661445640\",\"description\":\"iOS\"},{\"type\":\"string\",\"const\":\"6809637773935378440\",\"description\":\"人工智能\"},{\"type\":\"string\",\"const\":\"6809637771511070734\",\"description\":\"开发工具\"},{\"type\":\"string\",\"const\":\"6809637776263217160\",\"description\":\"代码人生\"},{\"type\":\"string\",\"const\":\"6809637772874219534\",\"description\":\"阅读\"}],\"default\":\"6809637769959178254\"}},\"additionalProperties\":false,\"$schema\":\"http://json-schema.org/draft-07/schema#\"}\n  </arguments>\n</tool>\n\n\n<tool>\n  <name>fZMjSXkog94GRA7VoZpJtw</name>\n  <description>获取网易新闻热点榜，包含时政要闻、社会事件、财经资讯、科技动态及娱乐体育的全方位中文新闻资讯</description>\n  <arguments>\n    {\"type\":\"object\",\"properties\":{},\"additionalProperties\":false,\"$schema\":\"http://json-schema.org/draft-07/schema#\"}\n  </arguments>\n</tool>\n\n\n<tool>\n  <name>f5s3U6zXATp3L6wpAwNcn4</name>\n  <description>获取纽约时报新闻，包含国际政治、经济金融、社会文化、科学技术及艺术评论的高质量英文或中文国际新闻资讯</description>\n  <arguments>\n    {\"type\":\"object\",\"properties\":{\"region\":{\"anyOf\":[{\"type\":\"string\",\"const\":\"cn\",\"description\":\"中文\"},{\"type\":\"string\",\"const\":\"global\",\"description\":\"全球\"}],\"default\":\"cn\"},\"section\":{\"type\":\"string\",\"default\":\"HomePage\",\"description\":\"分类，当 `region` 为 `cn` 时无效。可选值: Africa, Americas, ArtandDesign, Arts, AsiaPacific, Automobiles, Baseball, Books/Review, Business, Climate, CollegeBasketball, CollegeFootball, Dance, Dealbook, DiningandWine, Economy, Education, EnergyEnvironment, Europe, FashionandStyle, Golf, Health, Hockey, HomePage, Jobs, Lens, MediaandAdvertising, MiddleEast, MostEmailed, MostShared, MostViewed, Movies, Music, NYRegion, Obituaries, PersonalTech, Politics, ProBasketball, ProFootball, RealEstate, Science, SmallBusiness, Soccer, Space, Sports, SundayBookReview, Sunday-Review, Technology, Television, Tennis, Theater, TMagazine, Travel, Upshot, US, Weddings, Well, World, YourMoney\"}},\"additionalProperties\":false,\"$schema\":\"http://json-schema.org/draft-07/schema#\"}\n  </arguments>\n</tool>\n\n\n<tool>\n  <name>fSodMRu-GB5-mpBxBvxc2D</name>\n  <description>获取什么值得买热门，包含商品推荐、优惠信息、购物攻略、产品评测及消费经验分享的实用中文消费类资讯</description>\n  <arguments>\n    {\"type\":\"object\",\"properties\":{\"unit\":{\"anyOf\":[{\"type\":\"number\",\"const\":1,\"description\":\"今日热门\"},{\"type\":\"number\",\"const\":7,\"description\":\"周热门\"},{\"type\":\"number\",\"const\":30,\"description\":\"月热门\"}],\"default\":1}},\"additionalProperties\":false,\"$schema\":\"http://json-schema.org/draft-07/schema#\"}\n  </arguments>\n</tool>\n\n\n<tool>\n  <name>fnY78eScFYQ-6xtUUQg8fB</name>\n  <description>获取少数派热榜，包含数码产品评测、软件应用推荐、生活方式指南及效率工作技巧的优质中文科技生活类内容</description>\n  <arguments>\n    {\"type\":\"object\",\"properties\":{\"tag\":{\"type\":\"string\",\"enum\":[\"热门文章\",\"应用推荐\",\"生活方式\",\"效率技巧\",\"少数派播客\"],\"default\":\"热门文章\",\"description\":\"分类\"},\"limit\":{\"type\":\"integer\",\"default\":40}},\"additionalProperties\":false,\"$schema\":\"http://json-schema.org/draft-07/schema#\"}\n  </arguments>\n</tool>\n\n\n<tool>\n  <name>fFlnyuBJfPLifqYRkW94Lh</name>\n  <description>获取腾讯新闻热点榜，包含国内外时事、社会热点、财经资讯、娱乐动态及体育赛事的综合性中文新闻资讯</description>\n  <arguments>\n    {\"type\":\"object\",\"properties\":{\"page_size\":{\"type\":\"integer\",\"default\":20}},\"additionalProperties\":false,\"$schema\":\"http://json-schema.org/draft-07/schema#\"}\n  </arguments>\n</tool>\n\n\n<tool>\n  <name>f0YfISsRrFbNGGwO3XVCFY</name>\n  <description>获取澎湃新闻热榜，包含时政要闻、财经动态、社会事件、文化教育及深度报道的高质量中文新闻资讯</description>\n  <arguments>\n    {\"type\":\"object\",\"properties\":{},\"additionalProperties\":false,\"$schema\":\"http://json-schema.org/draft-07/schema#\"}\n  </arguments>\n</tool>\n\n\n<tool>\n  <name>fIKw7RiYt2oAptPSBtelf-</name>\n  <description>获取 The Verge 新闻，包含科技创新、数码产品评测、互联网趋势及科技公司动态的英文科技资讯</description>\n  <arguments>\n    {\"type\":\"object\",\"properties\":{},\"additionalProperties\":false,\"$schema\":\"http://json-schema.org/draft-07/schema#\"}\n  </arguments>\n</tool>\n\n\n<tool>\n  <name>fH1Xj1bmY_qWxS6b8BoSCK</name>\n  <description>获取今日头条热榜，包含时政要闻、社会事件、国际新闻、科技发展及娱乐八卦等多领域的热门中文资讯</description>\n  <arguments>\n    {\"type\":\"object\",\"properties\":{},\"additionalProperties\":false,\"$schema\":\"http://json-schema.org/draft-07/schema#\"}\n  </arguments>\n</tool>\n\n\n<tool>\n  <name>fIoNHXnzDif1o8sJSRpVBu</name>\n  <description>获取微博热搜榜，包含时事热点、社会现象、娱乐新闻、明星动态及网络热议话题的实时热门中文资讯</description>\n  <arguments>\n    {\"type\":\"object\",\"properties\":{},\"additionalProperties\":false,\"$schema\":\"http://json-schema.org/draft-07/schema#\"}\n  </arguments>\n</tool>\n\n\n<tool>\n  <name>fX_nTem-9mBD-9Th_ZVRdA</name>\n  <description>获取微信读书排行榜，包含热门小说、畅销书籍、新书推荐及各类文学作品的阅读数据和排名信息</description>\n  <arguments>\n    {\"type\":\"object\",\"properties\":{\"category\":{\"anyOf\":[{\"type\":\"string\",\"const\":\"rising\",\"description\":\"飙升榜\"},{\"type\":\"string\",\"const\":\"hot_search\",\"description\":\"热搜榜\"},{\"type\":\"string\",\"const\":\"newbook\",\"description\":\"新书榜\"},{\"type\":\"string\",\"const\":\"general_novel_rising\",\"description\":\"小说榜\"},{\"type\":\"string\",\"const\":\"all\",\"description\":\"总榜\"}],\"default\":\"rising\",\"description\":\"排行榜分区\"}},\"additionalProperties\":false,\"$schema\":\"http://json-schema.org/draft-07/schema#\"}\n  </arguments>\n</tool>\n\n\n<tool>\n  <name>fzIq8ORLIZHJLRU6pJt3O5</name>\n  <description>获取知乎热榜，包含时事热点、社会话题、科技动态、娱乐八卦等多领域的热门问答和讨论的中文资讯</description>\n  <arguments>\n    {\"type\":\"object\",\"properties\":{\"limit\":{\"type\":\"number\",\"default\":50}},\"additionalProperties\":false,\"$schema\":\"http://json-schema.org/draft-07/schema#\"}\n  </arguments>\n</tool>\n\n</tools>\n\n## Tool Use Rules\nHere are the rules you should always follow to solve your task:\n1. Always use the right arguments for the tools. Never use variable names as the action arguments, use the value instead.\n2. Call a tool only when needed: do not call the search agent if you do not need information, try to solve the task yourself.\n3. If no tool call is needed, just answer the question directly.\n4. Never re-do a tool call that you previously did with the exact same parameters.\n5. For tool use, MARK SURE use XML tag format as shown in the examples above. Do not use any other format.\n\n# User Instructions\n\n\nNow Begin! If you solve the task correctly, you will receive a reward of $1,000,000.\n"}

{  "role": "user",  "content": "帮我搜索 模型上下文协议 MCP 相关的最新技术文章"}

{  "role": "assistant",  "content": "为了找到关于模型上下文协议（MCP）的最新技术文章，我将使用一些可用的工具来搜索相关资讯。首先，我可以从InfoQ开始，因为它经常发布企业级技术内容和前沿开发者动态。\n\n<tool_use>\n  <name>f0Uk75Pbfsx0rfdD725CYI</name>\n  <arguments>{\"region\":\"global\"}</arguments>\n</tool_use>"}

{  "role": "user",  "content": [    {      "type": "text",      "text": "Here is the result of tool call f0Uk75Pbfsx0rfdD725CYI:"    },    {      "type": "text",      "text": "[{\"type\":\"text\",\"text\":\"<title>Docker Desktop 4.40 Introduces Model Runner to Run LLMs Locally Expanding its AI Capabilities</title>\\n<description> 省略其他}]"    }  ]}