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nkarasiak

QGIS MCP

by nkarasiak

Get Algorithm Help

get_algorithm_help
Read-only

Retrieve detailed help for a QGIS processing algorithm, including its parameters, outputs, and description.

Instructions

Get detailed help for a processing algorithm: parameters (name, type, optional, default), outputs, and description.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
algorithm_idYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior4/5

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

Annotations already declare readOnlyHint=true, so the tool is known to be safe. The description adds value by specifying exactly what information is returned (parameters, outputs, description), going beyond the annotation.

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?

One sentence that immediately conveys the action and content. No redundancy, perfectly concise.

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 presence of an output schema and the simplicity of the tool, the description covers the necessary context. It mentions the key elements of the help content.

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 has one parameter with no description. The tool description explains it's for a processing algorithm but doesn't specify the format or source of algorithm_id. Since only one parameter, the description partially compensates for the lack of schema description.

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's purpose: retrieving detailed help for a processing algorithm, including parameters, outputs, and description. Differentiates from related tools like 'execute_processing' or 'list_processing_algorithms'.

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 implies usage context (for getting help on a specific algorithm). No explicit when-not-to-use or alternatives mentioned, but the name and sibling list make it clear.

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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