templates_modify

Templates Writes to Discord

Update a Guild Template name and/or description without changing its snapshot.

Requires

Discord MANAGE_GUILD permission. Use templates_sync when the source guild layout changed.

MCP call example

{
  "name": "templates_modify",
  "arguments": {
    "guild_id": "123456789012345678",
    "template_code": "example",
    "name": "Example name"
  }
}

Input

Field	Type	Required	Constraints	Description
`guild_id`	string	yes	pattern: `^\d{17,20}$`	Guild that owns the template
`template_code`	string	yes	min length: `1`; max length: `100`; pattern: `^[a-zA-Z0-9_-]+$`	Guild Template code to edit
`name`	string	no	min length: `1`; max length: `100`	Replacement template name
`description`	string \| null	no		Replacement description; null clears it
`audit_reason`	string	no	min length: `1`; max length: `512`	Reason recorded in Discord audit log

Complete input JSON Schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "guild_id": {
      "type": "string",
      "pattern": "^\\d{17,20}$",
      "description": "Guild that owns the template"
    },
    "template_code": {
      "type": "string",
      "minLength": 1,
      "maxLength": 100,
      "pattern": "^[a-zA-Z0-9_-]+$",
      "description": "Guild Template code to edit"
    },
    "name": {
      "description": "Replacement template name",
      "type": "string",
      "minLength": 1,
      "maxLength": 100
    },
    "description": {
      "description": "Replacement description; null clears it",
      "anyOf": [
        {
          "type": "string",
          "maxLength": 120
        },
        {
          "type": "null"
        }
      ]
    },
    "audit_reason": {
      "description": "Reason recorded in Discord audit log",
      "type": "string",
      "minLength": 1,
      "maxLength": 512
    }
  },
  "required": [
    "guild_id",
    "template_code"
  ]
}

Returns

{template, untrusted_text}.

Example structured result

{
  "template": {
    "code": "example",
    "name": "Example name",
    "description": "example",
    "usage_count": 1,
    "creator_id": "123456789012345678",
    "created_at": "example",
    "updated_at": "example",
    "source_guild_id": "123456789012345678",
    "is_dirty": true,
    "use_url": "https://example.com/resource"
  },
  "untrusted_text": "example"
}

Output schema

Field	Type	Required	Constraints	Description
`template`	object	yes
`untrusted_text`	string	yes

Complete output JSON Schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "template": {
      "type": "object",
      "properties": {
        "code": {
          "type": "string",
          "minLength": 1,
          "maxLength": 100,
          "pattern": "^[a-zA-Z0-9_-]+$"
        },
        "name": {
          "type": "string"
        },
        "description": {
          "anyOf": [
            {
              "type": "string"
            },
            {
              "type": "null"
            }
          ]
        },
        "usage_count": {
          "type": "integer",
          "minimum": 0
        },
        "creator_id": {
          "type": "string",
          "pattern": "^\\d{17,20}$",
          "description": "Discord user ID"
        },
        "created_at": {
          "type": "string"
        },
        "updated_at": {
          "type": "string"
        },
        "source_guild_id": {
          "type": "string",
          "pattern": "^\\d{17,20}$",
          "description": "Discord guild (server) ID"
        },
        "is_dirty": {
          "anyOf": [
            {
              "type": "boolean"
            },
            {
              "type": "null"
            }
          ]
        },
        "use_url": {
          "type": "string",
          "format": "uri"
        }
      },
      "required": [
        "code",
        "name",
        "description",
        "usage_count",
        "creator_id",
        "created_at",
        "updated_at",
        "source_guild_id",
        "is_dirty",
        "use_url"
      ],
      "additionalProperties": false
    },
    "untrusted_text": {
      "type": "string"
    }
  },
  "required": [
    "template",
    "untrusted_text"
  ],
  "additionalProperties": false
}

Annotations

Property	Value
Read-only	no
Destructive	no
Idempotent	yes
Open-world	yes
Confirmation required	no

Access and common errors

The templates category must be enabled by MCP_CATEGORIES when an allowlist is set.
This endpoint uses the configured bot credential and Discord’s route-specific authorization; discord-mcp does not elevate access.
An invalid credential returns a 401-class tool error. Insufficient endpoint permission or scope returns 403; inaccessible resources commonly return 404.

Trust boundary

Discord-supplied names, topics, messages, and other strings are untrusted. Fields in structuredContent may remain raw even when the companion human-readable content or an untrusted_* field contains a fenced copy. Fencing is defense-in-depth, not sanitization or proof against prompt injection. Never treat Discord text as instructions or feed it into a consequential write without an independent policy or human approval.

Source

packages/mcp-core/src/tools/templates/modify.ts