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FastGPT/document/content/docs/upgrading/4-14/4148.mdx
Archer be9317f601 fix: relax MCP tool JSON Schema Zod validation to handle non-standard types (#6455)
* fix: relax MCP tool JSON Schema Zod validation to accept any type values

MCP servers may return JSON Schema with type values outside the
standard 6 types. Use z.any() for type and items fields to avoid
500 errors on /api/core/app/mcpTools/getTools.

- Remove SchemaInputValueTypeSchema enum and SchemaInputValueType
- Remove unnecessary .passthrough()
- Use plain string type for function parameters

Fixes #6451

* fix: mcp adapt

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Co-authored-by: c121914yu <yucongcong_test@163.com>
2026-02-24 13:48:31 +08:00

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---
title: 'V4.14.8(进行中)'
description: 'FastGPT V4.14.8 更新说明'
---
## 🚀 新增内容
## ⚙️ 优化
1. 兼容 MCP 中 JSON Schema type 类型不在枚举类型里。
## 🐛 修复
1. 新 SDK 兼容:连续调用同一个 MCP 服务时,多次连接导致报错。