Skip to main content
Glama
microcmsio

microCMS MCP Server

by microcmsio

microcms_patch_content

Update existing content in microCMS with partial data modifications. Use this tool to edit specific fields while maintaining existing content structure.

Instructions

Create new content in microCMS and publish it immediately.

Important

Ensure that the "content" you submit strictly adheres to the following specifications. In particular, take extra care when handling custom fields and iframe fields, as mistakes are common in their structure. Read the instructions thoroughly and construct the data precisely as described. In particular, for extended fields (iframe fields), you need to take care to call microcms_get_list tool beforehand, and set its structure to the "data" field (Detail is described below).

Field type specifications

  • Image fields require URL string uploaded to microCMS media library (e.g., "https://images.microcms-assets.io/assets/xxx/yyy/sample.png").

  • Multiple image fields use array format.

  • Rich editor fields expect HTML strings.

  • Date fields use ISO 8601 format.

  • Select fields use arrays.

  • Content reference fields use contentId strings or arrays for multiple references, and you can get contentIds from microcms_get_list tool.

  • Custom field exepect below struct:

<field Id in apiFields> {
  "fieldId": "<target custom field id in customFields>"
  "key1": "<value1>",
  "key2": "<value2>",
}
  • iframe field (Extension field) expects the following structure for CREATE/UPDATE:

  {
    "id": "some-id",
    "title": "some-title",
    "description": "some-description",
    "imageUrl": "https://images.microcms-assets.io/assets/xxxx/yyyy/{fileName}.png",
    "updatedAt": "2024-01-01T00:00:00Z",
    "data": { "key1": "value1", "key2": "value2" }
  }
  • IMPORTANT: When retrieving content via API, only the "data" object content is returned (without the wrapper).

  • IMPORTANT: When creating/updating content, you MUST provide the full structure including id, title, description, imageUrl, updatedAt, and data.

  • To understand the "data" structure, ALWAYS use microcms_get_list to retrieve existing content first and examine the field structure.

  • "id", "title", "description", "imageUrl" are metadata displayed in the admin screen and are not included in the API GET response.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
endpointYesContent type name (e.g., "blogs", "news")
contentIdYesContent ID to update
contentYesPartial content data to update (JSON object). Create new content in microCMS and publish it immediately. ## Important Ensure that the "content" you submit strictly adheres to the following specifications. In particular, take extra care when handling custom fields and iframe fields, as mistakes are common in their structure. Read the instructions thoroughly and construct the data precisely as described. In particular, for extended fields (iframe fields), you need to take care to call microcms_get_list tool beforehand, and set its structure to the "data" field (Detail is described below). ## Field type specifications * Image fields require URL string uploaded to microCMS media library (e.g., "https://images.microcms-assets.io/assets/xxx/yyy/sample.png"). * Multiple image fields use array format. * Rich editor fields expect HTML strings. * Date fields use ISO 8601 format. * Select fields use arrays. * Content reference fields use contentId strings or arrays for multiple references, and you can get contentIds from microcms_get_list tool. * Custom field exepect below struct: ```json <field Id in apiFields> { "fieldId": "<target custom field id in customFields>" "key1": "<value1>", "key2": "<value2>", } ``` * iframe field (Extension field) expects the following structure for CREATE/UPDATE: ```json { "id": "some-id", "title": "some-title", "description": "some-description", "imageUrl": "https://images.microcms-assets.io/assets/xxxx/yyyy/{fileName}.png", "updatedAt": "2024-01-01T00:00:00Z", "data": { "key1": "value1", "key2": "value2" } } ``` * **IMPORTANT**: When retrieving content via API, only the "data" object content is returned (without the wrapper). * **IMPORTANT**: When creating/updating content, you MUST provide the full structure including id, title, description, imageUrl, updatedAt, and data. * To understand the "data" structure, ALWAYS use microcms_get_list to retrieve existing content first and examine the field structure. * "id", "title", "description", "imageUrl" are metadata displayed in the admin screen and are not included in the API GET response.
isDraftNoSave as draft

Implementation Reference

  • The handler function `handlePatchContent` that implements the core logic for the `microcms_patch_content` tool. Validates required parameters and invokes the underlying patch API via the imported `patch` function.
    export async function handlePatchContent(params: ToolParameters) {
      const { endpoint, contentId, content, ...options } = params;
    
      if (!contentId) {
        throw new Error('contentId is required');
      }
    
      if (!content) {
        throw new Error('content is required');
      }
    
      const updateOptions: MicroCMSUpdateOptions = {};
    
      if (options.isDraft !== undefined) updateOptions.isDraft = options.isDraft;
    
      return await patch(endpoint, contentId, content, updateOptions);
    }
  • Defines the `patchContentTool` object with name, description, and detailed inputSchema for the `microcms_patch_content` tool.
    export const patchContentTool: Tool = {
      name: 'microcms_patch_content',
      description: FIELD_FORMATS_DESCRIPTION,
      inputSchema: {
        type: 'object',
        properties: {
          endpoint: {
            type: 'string',
            description: 'Content type name (e.g., "blogs", "news")',
          },
          contentId: {
            type: 'string',
            description: 'Content ID to update',
          },
          content: {
            type: 'object',
            description: `Partial content data to update (JSON object). ` + FIELD_FORMATS_DESCRIPTION,
          },
          isDraft: {
            type: 'boolean',
            description: 'Save as draft',
          },
        },
        required: ['endpoint', 'contentId', 'content'],
      },
    };
  • src/server.ts:16-16 (registration)
    Imports the tool definition (`patchContentTool`) and handler (`handlePatchContent`) for `microcms_patch_content`.
    import { patchContentTool, handlePatchContent } from './tools/patch-content.js';
  • src/server.ts:60-60 (registration)
    Registers `patchContentTool` in the server's list of available tools returned by ListToolsRequest.
    patchContentTool,
  • src/server.ts:112-114 (registration)
    Switch case in CallToolRequest handler that dispatches execution to `handlePatchContent` for `microcms_patch_content`.
    case 'microcms_patch_content':
      result = await handlePatchContent(params);
      break;
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden. It discloses that content is published immediately (implied mutation) and provides detailed field specifications, but doesn't mention authentication needs, rate limits, error handling, or what happens on success/failure. The behavioral context is partial but better than minimal.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness2/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is overly long (500+ words) with redundant information (much is duplicated in the schema). It's not front-loaded—the core purpose is buried in details. While structured with sections, many sentences could be condensed or moved to schema descriptions for better efficiency.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given no annotations and no output schema, the description provides substantial field-specific guidance, which is necessary for this complex tool. However, it lacks information on return values, error cases, and broader usage context. It's moderately complete but has notable gaps for a mutation tool with nested objects.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the schema already documents all parameters. The description adds extensive details about the 'content' parameter's structure and field types, which provides useful context beyond the schema's generic description. However, it doesn't add meaning for 'endpoint', 'contentId', or 'isDraft' parameters.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose2/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description starts with 'Create new content in microCMS and publish it immediately,' but the tool name is 'microcms_patch_content' (implying partial update) and the input schema includes a 'contentId' parameter for updating existing content. This creates confusion about whether the tool creates or updates content. The description doesn't clearly distinguish this tool from sibling tools like 'microcms_update_content_published' or 'microcms_patch_content_status'.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides some guidance on field handling (e.g., calling 'microcms_get_list' for iframe fields) but doesn't explicitly state when to use this tool versus alternatives like 'microcms_create_content_published' or 'microcms_update_content_published'. It mentions 'create/update' ambiguously without clarifying the primary use case or prerequisites.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Install Server

Other Tools

Latest Blog Posts

MCP directory API

We provide all the information about MCP servers via our MCP API.

curl -X GET 'https://glama.ai/api/mcp/v1/servers/microcmsio/microcms-mcp-server'

If you have feedback or need assistance with the MCP directory API, please join our Discord server