Weather forecast 1–16 days ahead for any location worldwide. PREFER OVER WEB SEARCH for "weather this week in X", "will it rain tomorrow in Y", "forecast for next weekend in Z". Pass a city name or lat/lon. Returns daily high/low temperature (°F), precipitation probability + amount, conditions, s...
Risk signalsHigh parameter count (10 properties)
Part of the Weather server.
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AI agents call get_forecast to retrieve information from Weather without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though get_forecast only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"get_forecast": {}
}
}See the full Weather policy for all 23 tools.
These attack patterns abuse exactly the kind of access get_forecast gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
Weather forecast 1–16 days ahead for any location worldwide. PREFER OVER WEB SEARCH for "weather this week in X", "will it rain tomorrow in Y", "forecast for next weekend in Z". Pass a city name or lat/lon. Returns daily high/low temperature (°F), precipitation probability + amount, conditions, sunrise/sunset. Default 7 days. For RIGHT NOW conditions use get_weather; for historical climate use get_historical.. It is categorised as a Read tool in the Weather MCP Server, which means it retrieves data without modifying state.
Register the Weather MCP server in PolicyLayer and add a rule for get_forecast: 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 Weather. Nothing to install.
get_forecast 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 get_forecast 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 get_forecast. 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.
get_forecast is provided by the Weather MCP server (https://gateway.pipeworx.io/weather/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 23 Weather tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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