microCMS MCP Server

microcms_get_media

Retrieve media files from microCMS including URLs and image dimensions. Supports pagination with continuation tokens and filtering by filename or image-only.

Instructions

Get media files from microCMS (Management API). Returns media information including URLs, dimensions for images. Supports pagination via token (15-second validity). Requires media retrieval permissions.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "microcms_get_media"
  }
}

Input Schema

Name	Required	Description
`limit`	No	Number of media to retrieve (max 100, default 10). Only valid on first request.
`token`	No	Continuation token for pagination (obtained from previous response, 15-second validity)
`fileName`	No	Filter media by partial filename match (includes file extension)
`imageOnly`	No	Set to true to retrieve only image files. Only valid on first request.
`serviceId`	No	Service ID (required in multi-service mode, optional in single-service mode)

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedv0.9.0May 3, 2026

addedInput schema / properties / serviceId

Added value: +{
+  "description": "Service ID (required in multi-service mode, optional in single-service mode)",
+  "type": "string"
+}

First observedAug 15, 2025

TDQS

A4.4/5.0

Behavior4/5

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

No annotations are provided, so the description fully discloses behavior: read-only, pagination with time-limited tokens, and permission requirements. It does not mention idempotency but implies no side effects.

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

Conciseness5/5

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

Two efficient sentences, no wasted words, front-loaded with purpose followed by key details.

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?

For a listing tool with no output schema, the description adequately mentions what is returned (URLs, dimensions). It could detail the response structure more, but is sufficient given the schema covers parameter constraints.

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?

Schema covers 100% of parameters. The description adds meaningful context beyond the schema, such as '15-second validity' for token and 'only valid on first request' for limit and imageOnly, and 'partial filename match' for fileName.

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 clearly states 'Get media files' and specifies it returns URLs and dimensions for images, distinguishing it from sibling tools like delete or upload.

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

Usage Guidelines4/5

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

The description mentions the need for 'media retrieval permissions' and pagination details (token 15-second validity), but does not explicitly contrast with siblings for when to use this tool.

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