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OpenCode Figma MCP

OpenCode Figma MCP

by yhoyoex
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Local

get_instance_overrides

Retrieve override properties from a selected Figma component instance so you can apply them to other instances and match the source component.

Instructions

Get all override properties from a selected component instance. These overrides can be applied to other instances, which will swap them to match the source component.

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": "get_instance_overrides"
  }
}

Input Schema

NameRequiredDescriptionDefault
nodeIdNoOptional ID of the component instance to get overrides from. If not provided, currently selected instance will be used.

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.1.1

TDQS

A4/5.0
Behavior3/5

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

No annotations are provided, so the description carries the behavioral burden. It communicates that this is a retrieval operation and that the overrides are reusable, but it does not explicitly state read-only behavior, side effects, or what happens when no instance is selected—though the schema covers the selection fallback.

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 two concise sentences with no filler. The primary action is front-loaded, and the second sentence provides valuable purpose context without unnecessary length.

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 tool with one optional parameter and no output schema, the description plus schema provides enough information to call it correctly: what it returns, where it gets data from, and how the result can be used. It does not detail the override data structure, but the stated purpose is sufficient for this simple tool.

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?

The only parameter, nodeId, has 100% schema description coverage, including its optionality and fallback to the current selection. The description adds contextual meaning about how the overrides can be used, but does not need to repeat parameter-level details.

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 uses a specific action, 'Get all override properties', and identifies the exact resource, 'a selected component instance'. This clearly separates it from the sibling set_instance_overrides, which performs the inverse write operation.

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 explains that the retrieved overrides can be applied to other instances, giving a clear use case for the tool. It does not explicitly name alternatives or exclusion conditions, but the intent is clear enough for an agent to choose this over set_instance_overrides.

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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