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Computer Use MCP Server

Computer Use MCP Server

by SebastianBaltes
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Local

computer_wait

Pause execution for a specified number of seconds to let the user interface stabilize before continuing with automation tasks.

Instructions

Wait/pause for a specified duration in seconds. Useful to let UI settle.

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": {
      "duration": "<duration>"
    },
    "name": "computer_wait"
  }
}

Input Schema

NameRequiredDescriptionDefault
durationYesDuration in seconds (max 30)

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

A4.3/5.0
Behavior4/5

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

No annotations are provided, so the description carries the full burden. It discloses that the tool pauses execution for a given duration, which is the core behavior. For a simple wait, this is adequate, though it doesn't detail if the agent is blocked or other nuances.

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 extremely concise with two short sentences that convey everything needed without any extraneous information. Every word earns its place.

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

Completeness5/5

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

Given the tool's simplicity (one parameter, no output schema, no annotations), the description provides complete information: what it does, the unit, and a typical use case. Nothing additional is needed.

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 input schema has 100% coverage with a description for the duration parameter. The description adds only a slight clarification that the duration is in seconds, which is already in the schema. Therefore, it meets the baseline but adds minimal extra value.

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 clearly states the tool waits/pauses for a specified duration in seconds, with a specific use case (letting UI settle). This distinguishes it from sibling tools which perform different actions (clicking, typing, etc.).

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 provides a clear context for when to use the tool ('to let UI settle'), but does not explicitly mention when not to use it or list alternatives. Nonetheless, the guidance is sufficient given the tool's simplicity.

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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