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mario-andreschak

MCP Windows Desktop Automation

controlSend

Destructive

Send text directly to a specific Windows control or window when normal keyboard input fails, bypassing focus issues in desktop automation.

Instructions

Windows AutoIt controlSend. Requires a trusted owner and an interactive Windows x64 desktop.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
modeNoSend mode flag
textNoWindow text
titleYesWindow title
controlYesControl identifier
sendTextYesText to set/send to control

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv2.0.0

TDQS

C2.4/5.0
Behavior3/5

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

Annotations already declare destructiveHint=true, readOnlyHint=false, openWorldHint=true, and idempotentHint=false, so the safety profile is covered. The description adds valuable prerequisite context—trusted owner and interactive Windows x64 desktop—which is not in the annotations. However, it does not describe what the tool actually does or what side effects may occur beyond the annotation hints.

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

Conciseness2/5

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

The description is short but under-specified rather than concise. The first sentence merely repeats the tool name and platform, failing to earn its place by establishing purpose. The second sentence provides a prerequisite but lacks front-loaded action information, leaving the overall structure unhelpful for an agent.

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 that this is a destructive AutoIt control-send tool with no output schema, the description should at minimum explain what the tool does and when to use it. It only provides platform and environment prerequisites, omitting purpose, usage context, and behavioral details. The rich annotations and complete schema partially compensate, but the description remains incomplete.

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 schema provides 100% description coverage for all five parameters, so the baseline is 3 even without parameter details in the tool description. The description adds no additional meaning about parameters such as mode, text, title, control, or sendText. The schema already carries the full parameter documentation.

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

Purpose2/5

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

The description states 'Windows AutoIt controlSend', which essentially restates the tool name and platform without specifying the action (sending text/keystrokes to a window control). It does not distinguish the tool from siblings like send, controlSetText, or controlClick. This is a tautological restatement rather than a clear verb+resource statement.

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 is provided on when to use this tool versus alternatives such as send or controlSetText. The only contextual information is a prerequisite ('requires a trusted owner and an interactive Windows x64 desktop'), which does not tell an agent when to select this tool over others.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.