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posteverywhere

@posteverywhere/mcp

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get_media

Retrieve detailed information about a media file, including type, dimensions, size, upload status, and aspect ratio. Check if the file has finished processing before attaching to a post.

Instructions

Get detailed information about a specific media file on PostEverywhere, including its type, dimensions, file size, upload status, and aspect ratio. Use this to check if an uploaded media file has finished processing before attaching it to a post.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
media_idYesThe UUID of the media file to retrieve
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 correctly implies a read-only operation and lists return fields. However, it does not disclose potential side effects, authentication requirements, or error behavior (e.g., what happens if media_id is invalid).

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?

The description is only two sentences, both front-loaded with purpose and usage. No extraneous information—every sentence serves a clear function.

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?

The tool is simple with one parameter and no output schema. The description lists key return fields (type, dimensions, etc.) and provides a usage example. It adequately covers essential information, though it could mention error responses or default values.

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 coverage is 100%, so baseline is 3. The description does not add additional semantics for the media_id parameter beyond what the schema provides (UUID). It does not explain how to obtain the media_id or format constraints.

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 the action ('Get detailed information about a specific media file') and the resource ('media file on PostEverywhere'), listing specific attributes (type, dimensions, file size, upload status, aspect ratio). It distinguishes from sibling tools like list_media (which lists all media) and delete_media (which deletes).

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 explicitly states when to use: 'Use this to check if an uploaded media file has finished processing before attaching it to a post.' This provides clear context and a specific use case, though it does not explicitly mention when not to use or alternatives.

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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