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sprine

ontario-data-mcp

by sprine

list_geo_datasets

Read-only

Discover geospatial datasets from Ontario's open data portals. Filter by format (SHP, KML, GeoJSON) or portal to narrow results.

Instructions

Find all datasets that contain geospatial resources (SHP, KML, GeoJSON).

Args: format_filter: Filter to specific format: "SHP", "KML", "GEOJSON", or None for all limit: Max results per portal portal: Narrow to one portal. Default: all portals.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
format_filterNo
limitNo
portalNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior3/5

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

Annotations already indicate readOnlyHint=true and destructiveHint=false. The description adds filtering behavior but does not disclose other traits like response format or edge cases (e.g., empty results). It does not contradict 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?

Two short sentences plus parameter list. Purpose is front-loaded. No extraneous information. Every sentence is necessary.

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?

Has output schema, so return details are covered. The description covers what the tool lists and how to filter. Missing details like ordering or pagination, but these are not critical for a list tool.

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

Parameters4/5

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

Schema coverage is 0%, so the description must compensate. The Args block explains each parameter: format_filter (with enum values SHP/KML/GEOJSON/None), limit (max per portal), portal (single portal). This adds significant meaning beyond bare parameter names.

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 finds datasets with geospatial resources (SHP, KML, GeoJSON). It uses a specific verb 'find' and resource, distinguishing it from siblings like search_datasets or list_resources.

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 explicit guidance on when to use this tool vs alternatives. The description implies usage through parameters but does not state when not to use or suggest alternatives.

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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