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Unity MCP Claude Code

Unity MCP Claude Code

by MauricePutinas
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Local

gui_send_keys

Send raw keyboard sequences using pywinauto syntax to automate GUI interactions, such as Ctrl+S for save or Enter for confirmation.

Instructions

Sendet rohe Tastenfolgen (pywinauto-Syntax), z.B. '^s' = Strg+S, '{ENTER}', '%{F4}'.

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": {
      "keys": "<keys>"
    },
    "name": "gui_send_keys"
  }
}

Input Schema

NameRequiredDescriptionDefault
keysYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv2.1.0

TDQS

A3.7/5.0
Behavior3/5

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

Annotations indicate non-readOnly and non-destructive, but the description does not elaborate on side effects, focus requirements, or potential triggers. It adds basic syntax context but lacks deeper transparency.

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 a single efficient sentence that front-loads the action and includes essential examples. Every part serves a purpose with no redundancy.

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 tool with one parameter and no output schema, the description is largely complete. It could mention that a target window must be focused, but overall it provides sufficient context.

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?

With 0% schema description coverage, the description compensates well by explaining the pywinauto syntax and providing examples ('^s', '{ENTER}', '%{F4}'). It adds meaningful context beyond the schema's 'Keys' label.

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 sends raw key sequences using pywinauto syntax with concrete examples. While it distinguishes from 'gui_type_text' implicitly, it does not explicitly differentiate among siblings.

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

Usage Guidelines3/5

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

The description implies use for keyboard shortcuts and special keys but does not provide explicit when-to-use or when-not-to-use guidance, nor does it mention alternatives like 'gui_type_text'.

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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