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Meta MCP Server

Meta MCP Server

by oliverames
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Remote

Get Page Profile Picture

meta_get_page_picture
Read-onlyIdempotent

Retrieve the profile picture URL for a Facebook Page. Provide the Page ID and optionally select size: small, normal, large, or square.

Instructions

Gets the profile picture URL for a Facebook Page.

Args:

  • page_id (string): Facebook Page ID

  • size (string): Picture size — small, normal, large, square (default: large)

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "page_id": "<page_id>"
    },
    "name": "meta_get_page_picture"
  }
}

Input Schema

NameRequiredDescriptionDefault
page_idYes
sizeNolarge
response_formatNoOutput format: 'markdown' for human-readable or 'json' for machine-readablemarkdown

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv2.0.2

TDQS

B3.4/5.0
Behavior3/5

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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the operation's safe, non-mutating nature is known. The description aligns with those annotations by saying it 'gets' a URL, but it adds no extra behavioral context such as auth needs, rate limits, or caching behavior. This is acceptable for a simple read operation but not enriching.

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

Conciseness4/5

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

The description is front-loaded with a clear one-sentence purpose and followed by a compact args list. There is no filler, though the size parameter partly repeats the schema's enum and default. Overall it is appropriately sized and easy to parse.

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 simple read-only lookup with no output schema, this is mostly complete: it states the output is a URL and covers the relevant page_id and size parameters. It does not mention response_format, but the schema describes it fully. No critical behavioral or usage information seems missing for this low-complexity tool.

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 description coverage is only 33% (only response_format has a description), so the description must compensate. It does add meaning for page_id as 'Facebook Page ID' and for size as picture size with allowed values and default. The response_format parameter is already described in the schema, so all parameters have adequate semantic coverage across the definition.

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

Purpose4/5

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

The description clearly states the operation: getting the profile picture URL for a Facebook Page. It names the resource (page picture) and the return value (URL), which is specific and actionable. It does not explicitly differentiate from sibling tools like meta_update_page_picture or meta_get_page_photos, though the name and resource make the distinction fairly apparent.

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 gives no guidance on when to use this tool versus alternatives, nor any prerequisites or exclusions. The agent must infer from the name alone that this is the read-only way to fetch a page's profile picture; sibling tools such as meta_update_page_picture are not referenced or contrasted.

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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