spatial_query · Ontario Data MCP: Risk & Policy

WHAT IT DOES

What spatial_query does on Ontario Data

AI agents invoke spatial_query to trigger actions in Ontario Data. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why spatial_query needs a policy

The name suggests a query operation, likely executing spatial/geographic queries against datasets via DuckDB. Given the server context (DuckDB, open data analytics), this probably runs spatial SQL queries. Without a description, confidence is low, but 'query' on a DuckDB-backed system implies code execution rather than a simple read.

From the tool's definition Tool name 'spatial_query' on a server that uses DuckDB for analytics; description is empty and uninformative.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

spatial_query Rate-limited

spatial_query stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "spatial_query": {
      "limits": [
        {
          "counter": "spatial_query_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Ontario Data, so you can run agents against it safely.

FAQ

Questions about spatial_query

What does the spatial_query tool do? +

spatial_query. It is categorised as a Execute tool in the Ontario Data MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on spatial_query? +

Register the Ontario Data MCP server in PolicyLayer and add a rule for spatial_query: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Ontario Data. Nothing to install.

What risk level is spatial_query? +

spatial_query is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit spatial_query? +

Yes. Add a rate_limit block to the spatial_query rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block spatial_query completely? +

Set action: deny in the PolicyLayer policy for spatial_query. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides spatial_query? +

spatial_query is provided by the Ontario Data MCP server (sprine/ontario-data-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.