help
Retrieve detailed assistance for specific commands within the SiYuan Note MCP Server, enabling efficient management of notebook operations and document interactions.
Instructions
获取命令的帮助信息
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| type | Yes | 命令类型 |
Implementation Reference
- src/tools/help.ts:13-94 (handler)The core handler logic for the 'help' tool. Takes a command 'type', fetches help from registry, formats detailed text response including params, returns, examples.
async ({ type }) => { try { const result = registry.getCommandHelp(type); if (result.isError) { return { content: [ { type: 'text' as const, text: result.content[0].text } ], isError: true }; } const doc = result._meta; if (!doc) { return { content: [ { type: 'text' as const, text: `命令 ${type} 没有帮助信息` } ], isError: true }; } // 构建帮助文本 const helpText = [ `命令: ${type}`, `描述: ${doc.description}`, '', '参数:', ...Object.entries(doc.params).map(([key, value]) => ` ${key}: ${value.type}${value.required ? ' (必需)' : ' (可选)'}\n ${value.description}` ), '', '返回值:', ` 类型: ${doc.returns.type}`, ` 描述: ${doc.returns.description}`, ' 属性:', ...Object.entries(doc.returns.properties).map(([key, desc]) => ` ${key}: ${String(desc)}` ), '', '示例:', ...doc.examples.map(example => [ ` ${example.description}:`, ' 参数:', ` ${JSON.stringify(example.params, null, 2).replace(/\n/g, '\n ')}`, ' 响应:', ` ${JSON.stringify(example.response, null, 2).replace(/\n/g, '\n ')}` ]).flat(), '', doc.apiLink ? `API文档: ${doc.apiLink}` : '' ].filter(Boolean).join('\n'); return { content: [ { type: 'text' as const, text: helpText } ], _meta: { documentation: doc }, isError: false }; } catch (error) { return { content: [ { type: 'text' as const, text: error instanceof Error ? error.message : '获取帮助失败' } ], isError: true }; } } - src/tools/help.ts:10-12 (schema)Input schema: 'type' as string (command type).
{ type: z.string().describe('命令类型') }, - src/server.ts:54-54 (registration)Registers the 'help' tool by calling registerHelpTool on the MCP server instance.
registerHelpTool(server); - src/tools/help.ts:6-96 (registration)Function that registers the 'help' tool on the server with name, description, schema, and handler.
export function registerHelpTool(server: McpServer) { server.tool( 'help', '获取命令的帮助信息', { type: z.string().describe('命令类型') }, async ({ type }) => { try { const result = registry.getCommandHelp(type); if (result.isError) { return { content: [ { type: 'text' as const, text: result.content[0].text } ], isError: true }; } const doc = result._meta; if (!doc) { return { content: [ { type: 'text' as const, text: `命令 ${type} 没有帮助信息` } ], isError: true }; } // 构建帮助文本 const helpText = [ `命令: ${type}`, `描述: ${doc.description}`, '', '参数:', ...Object.entries(doc.params).map(([key, value]) => ` ${key}: ${value.type}${value.required ? ' (必需)' : ' (可选)'}\n ${value.description}` ), '', '返回值:', ` 类型: ${doc.returns.type}`, ` 描述: ${doc.returns.description}`, ' 属性:', ...Object.entries(doc.returns.properties).map(([key, desc]) => ` ${key}: ${String(desc)}` ), '', '示例:', ...doc.examples.map(example => [ ` ${example.description}:`, ' 参数:', ` ${JSON.stringify(example.params, null, 2).replace(/\n/g, '\n ')}`, ' 响应:', ` ${JSON.stringify(example.response, null, 2).replace(/\n/g, '\n ')}` ]).flat(), '', doc.apiLink ? `API文档: ${doc.apiLink}` : '' ].filter(Boolean).join('\n'); return { content: [ { type: 'text' as const, text: helpText } ], _meta: { documentation: doc }, isError: false }; } catch (error) { return { content: [ { type: 'text' as const, text: error instanceof Error ? error.message : '获取帮助失败' } ], isError: true }; } } ); } - src/utils/registry.ts:193-296 (helper)Registry method that retrieves and formats detailed documentation for a specific command, used by the 'help' tool.
public getCommandHelp(commandName: string): McpResponse<CommandHandler['documentation']> { // 尝试直接查找完整命令名 let command = this.commands.get(commandName); if (!command) { // 如果找不到，尝试解析命名空间 const [namespace, name] = this.parseFullCommandName(commandName); const fullName = this.getFullCommandName(namespace, name); command = this.commands.get(fullName); } if (!command) { return { content: [ { type: 'text', text: `命令 ${commandName} 不存在` } ], isError: true }; } // 获取参数说明 const params: Record<string, { type: string; description: string; required: boolean; }> = {}; try { if (command.params instanceof z.ZodObject) { const shape = command.params._def.shape(); Object.entries(shape).forEach(([key, value]) => { if (value instanceof z.ZodType) { const isOptional = value instanceof z.ZodOptional; params[key] = { type: value._def.typeName || 'unknown', description: value.description || '无说明', required: !isOptional }; } }); } } catch { // 如果无法获取 shape，返回空对象 } const help = command.documentation || { description: command.description, params, returns: { type: 'object', description: '命令执行结果', properties: {} }, examples: [] }; // 格式化帮助信息 const fullName = this.getFullCommandName(command.namespace, command.name); const paramsList = Object.entries(params).map(([name, info]) => ` ${name}: ${info.type}${info.required ? ' (必填)' : ' (可选)'}\n ${info.description}` ).join('\n'); const returnInfo = help.returns; const propertiesList = Object.entries(returnInfo.properties).map(([name, desc]) => ` ${name}: ${desc}` ).join('\n'); const examplesList = help.examples.map(example => `示例：${example.description}\n` + ` 参数：${JSON.stringify(example.params, null, 2)}\n` + ` 响应：${JSON.stringify(example.response, null, 2)}` ).join('\n\n'); const helpText = [ `命令: ${fullName}`, `描述: ${help.description}`, '', '参数:', paramsList || ' 无参数', '', '返回值:', ` 类型: ${returnInfo.type}`, ` 描述: ${returnInfo.description}`, ' 属性:', propertiesList || ' 无属性', '', examplesList ? '示例:\n' + examplesList : '示例: 无示例', '', help.apiLink ? `API文档: ${help.apiLink}` : '' ].filter(Boolean).join('\n'); return { content: [ { type: 'text', text: helpText } ], _meta: help }; }