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mahmudcoding

Custom Figma MCP

by mahmudcoding

Get generated Figma API schema

figma.get_api_schema

Gets the API schema contract for Figma plugins and REST operations, parsed from official typings and OpenAPI specs.

Instructions

Return the generated contract parsed from official Figma Plugin API typings and REST OpenAPI sources.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
limitNo
categoryNo
memberNameNo
objectNameNo
mutatesCanvasNo
restOperationIdNo
Behavior2/5

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

With no annotations, the description should disclose behavioral traits. It only says 'return the generated contract' but doesn't specify read-only nature, caching, or side effects. The agent cannot assess whether it mutates state or requires permissions.

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 a single sentence, concise and front-loaded. However, it sacrifices completeness for brevity.

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

Completeness2/5

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

Given 6 inputs, no output schema, and absent annotations, the description is insufficient. It fails to inform the agent about parameter function, output structure, or usage constraints.

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

Parameters1/5

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

The description provides no information about the six parameters (limit, category, memberName, etc.) and schema coverage is 0%. The schema carries full weight but lacks descriptions, making the tool opaque.

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 it returns the generated contract from official Figma API sources. It uses specific verbs and nouns, distinguishing it from other Figma tools like get_node or get_document.

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?

No guidance on when to use this tool versus alternatives; no context about prerequisites or filtering. It doesn't mention that parameters can be used to narrow results.

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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