Skip to main content
Glama
sidebutton

computer-use

by sidebutton

middle_click

Perform a middle-click at a specified screen coordinate, with optional modifier keys like ctrl or shift+alt.

Instructions

Middle-click at a coordinate.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
coordinateYes[x, y] in the model coordinate space (scaled to the screen).
textNoOptional modifier key(s) to hold during the click, e.g. 'ctrl' or 'shift+alt'.
Behavior2/5

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

No annotations are present, so the description carries full burden. It discloses only that a middle-click occurs at a coordinate, but not whether it simulates a real click, any side effects, or system requirements. The modifier key parameter description adds minor 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 extremely concise—a single sentence with no unnecessary words. It is efficiently front-loaded.

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 the large set of sibling click tools and no output schema, the description is too minimal. It does not explain typical use cases (e.g., opening links in a new tab) or return behavior, leaving the agent without sufficient context for correct selection.

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?

Schema description coverage is 100%, with both parameters having descriptions. The tool-level description adds no extra parameter meaning, but the schema already provides adequate explanation (e.g., coordinate format, modifier keys). Baseline 3 is appropriate.

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 the action (middle-click) and the target (at a coordinate), distinguishing it from other click tools like left_click or right_click. However, it is minimal.

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?

The description provides no guidance on when to use middle-click versus alternatives (e.g., left_click, double_click). Usage is only implied, with no exclusions or context.

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

Install Server

Other Tools

Latest Blog Posts

MCP directory API

We provide all the information about MCP servers via our MCP API.

curl -X GET 'https://glama.ai/api/mcp/v1/servers/sidebutton/plugin-computer-use'

If you have feedback or need assistance with the MCP directory API, please join our Discord server