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microcmsio

microCMS MCP Server

by microcmsio

microcms_create_content_published

Create new content in microCMS and publish it immediately. Accepts content data including custom fields and iframe fields with proper 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
serviceIdNoService ID (required in multi-service mode, optional in single-service mode)
endpointYesContent type name (e.g., "blogs", "news")
contentYesContent data to create (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.
contentIdNoSpecific content ID to assign
Behavior4/5

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

No annotations are provided, so the description fully bears the burden of behavioral disclosure. It explains the immediate publication behavior, field type specifications, structure differences between GET and create/update for iframe fields, and warns about common mistakes. It lacks discussion of rate limits or auth but covers the core mutation behavior well.

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

Conciseness3/5

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

The description is verbose with multiple sections and code blocks. While front-loaded with the main purpose, the extensive detail on field types could be streamlined. The structure is organized but not concise.

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

Completeness4/5

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

Given the complexity of the input (nested objects, varied field types), the description covers essential aspects: all field type specifications, the iframe field structure nuance, and reliance on microcms_get_list. It does not describe the response format, but absence of an output schema reduces the need.

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

Parameters4/5

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

The input schema has 100% description coverage, but the tool description adds significant value beyond schema definitions, especially for nested objects like custom fields and iframe fields. It provides concrete examples and structural requirements that the schema alone does not convey.

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

Purpose5/5

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

The description explicitly states 'Create new content in microCMS and publish it immediately.' It clearly identifies the action (create+publish) and resource (content), distinguishing it from siblings like microcms_create_content_draft.

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

Usage Guidelines3/5

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

The description provides detailed instructions on constructing content data and advises using microcms_get_list for iframe fields. However, it does not explicitly guide when to use this tool versus alternatives like microcms_create_content_draft, missing explicit when-not or alternative comparisons.

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

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