[Bug]: The "schema" field in the input schema needs to be modified or removed

[chung1912]

Version

main

App

• Cursor
• Windsurf
• VSCode
• VSCode Insiders
• Claude Desktop
• Other

Affected Models (if applicable)

• Claude 3.5 Sonnet
• Claude 3.7 Sonnet
• GPT-4a
• o4-mini
• Other

Bug Description

{
  "type": "object",
  "properties": {
    "database": {
      "type": "string",
      "description": "Database name"
    }
  },
  "required": [
    "database"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

The $schema here contains the special symbol $, which may cause errors during use in some cases. It is recommended to delete this field or change $schema to schema to avoid such issues

[github-actions]

Thanks for opening this issue. The ticket MCP-101 was created for internal tracking.

[kmruiz]

Hi @chung1912 ,

can you provide what is the actual issue? $schema is an internal field documented on the JsonSchema spec and it's standard so we are not willing to remove or rename it unless there is a really specific issue.

Thanks!