Skip to main content
Glama
sprine

ontario-data-mcp

by sprine

sql_query

Read-only

Run SQL queries directly on Ontario's open data portals. Use for quick, one-off data retrieval from datastore-active resources.

Instructions

Run a SQL query against the CKAN Datastore (remote).

NOTE: Prefer download_resource + query_cached for repeated queries — the remote API has rate limits (429 errors). Use this tool only for quick one-off queries on datastore-active resources.

Use resource IDs as table names in double quotes. Example: SELECT "Column Name" FROM "resource-id-here" WHERE "Year" > 2020 LIMIT 10

Args: sql: SQL query string (read-only, SELECT only) portal: Portal to query (default: "ontario"). Required because SQL embeds resource IDs directly.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
sqlYes
portalNoontario

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior5/5

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

Annotations already declare readOnlyHint=true and destructiveHint=false; description adds that queries are read-only (SELECT only), mentions rate limits, and explains the remote API nature, providing context beyond 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 concise with a clear note, example, and argument breakdown; every sentence serves a purpose without wasted words.

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 complexity (SQL query, remote API, rate limits, multiple parameters), the description covers usage, constraints, parameter details, and provides an example, making it fully actionable.

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

Parameters5/5

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

Despite 0% schema coverage, the description fully explains the sql parameter (read-only, SELECT only) and portal parameter (default 'ontario', required because SQL embeds resource IDs), adding significant meaning over the schema.

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 runs SQL queries against the CKAN Datastore, specifies it's remote, and distinguishes from sibling tools by recommending alternatives for repeated queries.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Explicitly states when to use (quick one-off queries) and when not to (repeated queries should use download_resource + query_cached), and provides an example of how to construct queries.

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/sprine/ontario-data-mcp'

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