get-user
Retrieve HackerNews user profiles to check karma scores, read bios, verify account creation dates, and confirm user existence before searching their content.
Instructions
Retrieve public profile information for a HackerNews user.
Returns user profile including karma, bio, and account creation date. Use this to:
Check user reputation (karma score)
Read user bio and about information
See when account was created
Verify user existence before searching their content
Features:
Username (case-sensitive)
Karma score (total upvotes received)
About/bio text (may contain HTML)
Account creation date (Unix timestamp)
Examples:
Get famous user: { "username": "pg" }
Check moderator: { "username": "dang" }
Verify author: { "username": "tptacek" }
Username validation:
Alphanumeric characters and underscores only
Case-sensitive
Must exist on HackerNews
Returns error if user doesn't exist or username format is invalid.
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| username | Yes |
Implementation Reference
- src/mcp.ts:90-132 (registration)Dynamically fetches tool list from remote API and registers each tool, including "get-user" if present in the list for mcpID 1777316659382275, using parsed Zod schemas.for (const apiDesc of apiDescList) { let inputSchema = JSON.parse(apiDesc.inputSchema); const zodDict: Record<string, z.ZodTypeAny> = {}; Object.entries(inputSchema.properties).forEach(([name, propConfig]) => { let zodType; let pt = (propConfig as { type: string }).type; switch (pt) { case 'string': zodType = z.string(); break; case 'number': zodType = z.number(); break; case 'boolean': zodType = z.boolean(); break; case 'integer': zodType = z.int32(); break; case 'array': zodType = z.array(z.any()); break; case 'object': zodType = z.object(z.any()); break; default: zodType = z.any(); } if (inputSchema.required?.includes(name)) { zodDict[name] = zodType; } else { zodDict[name] = zodType.optional(); } }); addToolXiaoBenYangApi( apiDesc.name, apiDesc.description ? apiDesc.description : apiDesc.name, zodDict); }
- src/mcp.ts:15-36 (handler)Core handler implementation that executes all tools, including "get-user", by proxying the call with toolName to the remote https://mcp.xiaobenyang.com/api endpoint.const calcXiaoBenYangApi = async function (fullArgs: Record<string, any>) { // 发起 POST 请求 let response = await fetch('https://mcp.xiaobenyang.com/api', { method: 'POST', headers: { 'XBY-APIKEY': apiKey, 'func': fullArgs.toolName, 'mcpid': mcpID }, body: new URLSearchParams(fullArgs) }); const apiResult = await response.text(); return { content: [ { type: "text", text: apiResult // 将字符串结果放入 content 中 } ] } as { [x: string]: unknown; content: [{ type: "text"; text: string }] }; };
- src/mcp.ts:50-65 (helper)Helper function that registers each dynamic tool on the MCP server, providing schema and proxy handler.const addToolXiaoBenYangApi = function ( name: string, desc: string, params: Record<string, ZodType> ) { server.registerTool( name, { title: name, description: desc, inputSchema: params, } , async (args: Record<string, any>) => handleXiaoBenYangApi(args, name) ) };
- src/mcp.ts:94-125 (schema)Parses the remote tool's JSON schema into a Zod inputSchema dictionary used for registration.Object.entries(inputSchema.properties).forEach(([name, propConfig]) => { let zodType; let pt = (propConfig as { type: string }).type; switch (pt) { case 'string': zodType = z.string(); break; case 'number': zodType = z.number(); break; case 'boolean': zodType = z.boolean(); break; case 'integer': zodType = z.int32(); break; case 'array': zodType = z.array(z.any()); break; case 'object': zodType = z.object(z.any()); break; default: zodType = z.any(); } if (inputSchema.required?.includes(name)) { zodDict[name] = zodType; } else { zodDict[name] = zodType.optional(); } });
- src/mcp.ts:39-48 (helper)Intermediate handler that validates and prepares arguments before calling the core proxy function.const handleXiaoBenYangApi = async (args: Record<string, any>, toolName: string) => { // 校验aid是否存在 if (toolName === undefined || toolName === null) { throw new Error("缺少必要参数 'aid'"); } // 合并参数 const fullArgs = {...args, toolName: toolName}; // 调用API return calcXiaoBenYangApi(fullArgs); };