MCP服务器解析出现错误

[chung1912]

例行检查

• 我已确认目前没有类似 issue
• 我已完整查看过项目 README，以及项目文档
• 我使用了自己的 key，并确认我的 key 是可正常使用的
• 我理解并愿意跟进此 issue，协助测试和提供反馈
• 我理解并认可上述内容，并理解项目维护者精力有限，不遵循规则的 issue 可能会被无视或直接关闭

你的版本

• 公有云版本
• 私有部署版本, 具体版本号: v4.14.7

问题描述, 日志截图，配置文件等

v4.14.6还是正常的，v4.14.7就不正常了，提示下错误：

2026-02-23 08:37:11   DBG app:mcp-tools        MCP client connection closed: {
                                                 requestId: 'xxxxxxxxxxxxxx',
                                                 url: 'http://xxxxxxxxx'
                                               }
2026-02-23 08:37:11   INF http:response        [POST] /api/core/app/mcpTools/getTools - 500 in 190ms
2026-02-23 08:37:11   WRN http:error           Request validation failed: {
                                                 requestId: 'xxxxxxxxxxxxxx',
                                                 method: 'POST',
                                                 url: '/api/core/app/mcpTools/getTools',
                                                 error: ZodError: [
                                                   {
                                                     "code": "invalid_value",
                                                     "values": [
                                                       "string",
                                                       "number",
                                                       "integer",
                                                       "boolean",
                                                       "array",
                                                       "object"
                                                     ],
                                                     "path": [
                                                       7,
                                                       "inputSchema",
                                                       "properties",
                                                       "method",
                                                       "items",
                                                       "type"
                                                     ],
                                                     "message": "Invalid option: expected one of \"string\"|\"number\"|\"integer\"|\"boolean\"|\"array\"|\"object\""
                                                   },
                                                   {
                                                     "code": "invalid_value",
                                                     "values": [
                                                       "string",
                                                       "number",
                                                       "integer",
                                                       "boolean",
                                                       "array",
                                                       "object"
                                                     ],
                                                     "path": [
                                                       8,
                                                       "inputSchema",
                                                       "properties",
                                                       "exportTarget",
                                                       "items",
                                                       "type"
                                                     ],
                                                     "message": "Invalid option: expected one of \"string\"|\"number\"|\"integer\"|\"boolean\"|\"array\"|\"object\""
                                                   }
                                                 ]

2026-02-23 08:37:11   ERR http:error           Zod validation error: {
                                                 requestId: '',
                                                 url: '/api/core/app/mcpTools/getTools',
                                                 data: [
                                                   {
                                                     code: 'invalid_value',
                                                     values: [Array],
                                                     path: [Array],
                                                     message: 'Invalid option: expected one of "string"|"number"|"integer"|"boolean"|"array"|"object"'
                                                   },
                                                   {
                                                     code: 'invalid_value',
                                                     values: [Array],
                                                     path: [Array],
                                                     message: 'Invalid option: expected one of "string"|"number"|"integer"|"boolean"|"array"|"object"'
                                                   }
                                                 ],
                                                 error: ZodError: [
                                                   {
                                                     "code": "invalid_value",
                                                     "values": [
                                                       "string",
                                                       "number",
                                                       "integer",
                                                       "boolean",
                                                       "array",
                                                       "object"
                                                     ],
                                                     "path": [
                                                       7,
                                                       "inputSchema",
                                                       "properties",
                                                       "method",
                                                       "items",
                                                       "type"
                                                     ],
                                                     "message": "Invalid option: expected one of \"string\"|\"number\"|\"integer\"|\"boolean\"|\"array\"|\"object\""
                                                   },
                                                   {
                                                     "code": "invalid_value",
                                                     "values": [
                                                       "string",
                                                       "number",
                                                       "integer",
                                                       "boolean",
                                                       "array",
                                                       "object"
                                                     ],
                                                     "path": [
                                                       8,
                                                       "inputSchema",
                                                       "properties",
                                                       "exportTarget",
                                                       "items",
                                                       "type"
                                                     ],
                                                     "message": "Invalid option: expected one of \"string\"|\"number\"|\"integer\"|\"boolean\"|\"array\"|\"object\""
                                                   }
                                                 ]

在工作流先后调用同一个mcp不同工具的时候，会出现这个错误：
Already connected to a transport. Call close() before connecting to a new transport, or use a separate Protocol instance per connection.
这在v4.14.6版本中不会出现这种问题，而v4.14.7版本则出现了这个问题