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Scofield81

Ubuntu Control MCP

by Scofield81

launch_application

Launch graphical or command-line applications in the background, using .desktop entries or direct commands, and get the process ID for confirmation.

Instructions

Grafikus (vagy barmilyen) alkalmazas inditasa a hatterben, levalasztva.

Eloszor 'gtk-launch ' (.desktop), kudarc eseten kozvetlen parancsindtas.

Args: params (LaunchAppInput): application, arguments. Returns: str: Megerosites + PID (ha elerheto).

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
paramsYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

A3.9/5.0
Behavior4/5

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

Beyond annotations, the description discloses that the launch is background/detached, that gtk-launch is tried first with a direct command fallback, and that the return is a confirmation string possibly including the PID. This is meaningful behavioral context and does not contradict the annotations.

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 tightly organized: a one-sentence summary, the launch strategy, and then Args/Returns. Every sentence adds relevant information with no filler.

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 launch tool with annotations and an output schema, the description is nearly complete: it covers the launch mode, the fallback mechanism, and the return value. It could be slightly stronger by explicitly stating that this tool is for detached launches only and that interactive use belongs to terminal_open or shell_run.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters2/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The description only lists the parameter names 'application' and 'arguments' without explaining their meaning or usage. Schema description coverage is reported as 0%, so the description should compensate, but it does not clarify accepted formats, argument behavior, or required fields.

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 a specific action: launch a graphical (or any) application in the background, detached. It also describes the mechanism (gtk-launch with .desktop name, falling back to direct command), which distinguishes it from sibling tools like terminal_open or shell_run.

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 intended use is implied: use this when you want to launch an application detached in the background. However, there is no explicit guidance about when NOT to use it or which sibling to prefer for interactive/foreground command execution.

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