Active Environment Canada weather alerts (warnings, watches, statements) across Canada, optionally filtered near a point. Returns alert name, type, risk colour, affected area, province, effective/expiry times and a text excerpt. Example: latitude 43.65, longitude -79.38 for Toronto-area alerts. K...
AI agents call active_alerts to retrieve information from Mcp Weather Gc Ca without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
limit | number | — | Max alerts to return (default 10, max 30). |
latitude | number | — | Optional latitude — if both latitude and longitude are given, alerts are filtered to a ±2° box around the point. |
longitude | number | — | Optional longitude (used with latitude). |
Parameters from the server's own tool schema.
This is a pure data retrieval operation that queries live weather alert information from a public API. There are no side effects, no modifications to data, no code execution, no destructive actions, and no financial impact. The blast radius of misuse is minimal—an agent could at worst retrieve or display incorrect alert information, but cannot cause harm via this read-only interface.
From the tool's definition The tool retrieves and returns Environment Canada weather alerts (warnings, watches, statements) with metadata such as alert name, type, risk colour, affected area, province, and times.
Attacks that exploit this kind of access
Active Environment Canada weather alerts (warnings, watches, statements) across Canada, optionally filtered near a point. Returns alert name, type, risk colour, affected area, province, effective/expiry times and a text excerpt. Example: latitude 43.65, longitude -79.38 for Toronto-area alerts. Keyless, official ECCC data. It is categorised as a Read tool in the Mcp Weather Gc Ca MCP Server, which means it retrieves data without modifying state.
active_alerts accepts 3 parameters: limit, latitude, longitude. The full parameter table on this page comes from the server's own tool schema.
Register the Mcp Weather Gc Ca MCP server in PolicyLayer and add a rule for active_alerts: 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 Mcp Weather Gc Ca. Nothing to install.
active_alerts is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the active_alerts 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.
Set action: deny in the PolicyLayer policy for active_alerts. 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.
active_alerts is provided by the Mcp Weather Gc Ca MCP server (https://gateway.pipeworx.io/weather-gc-ca/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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