Run a full scan across all supported cities and rank top weather-market signals.
AI agents call get_all_signals to retrieve information from Weather Edge MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and analyzes weather forecast data to identify market signals. It performs read-only operations (scanning, ranking) across a dataset without creating, modifying, deleting, or executing external code. The worst-case misuse is an agent making poor financial decisions based on retrieved signals, but the tool itself has no write/execute/destructive capability and commits no financial transactions.
From the tool's definition Tool description states 'Run a full scan across all supported cities and rank top weather-market signals' - a retrieval and ranking operation with no modification of data. Named 'get_all_signals' emphasizing data retrieval.
Attacks that exploit this kind of access
Run a full scan across all supported cities and rank top weather-market signals. It is categorised as a Read tool in the Weather Edge MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Weather Edge MCP Server MCP server in PolicyLayer and add a rule for get_all_signals: 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 Edge MCP Server. Nothing to install.
get_all_signals 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_all_signals 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_all_signals. 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_all_signals is provided by the Weather Edge MCP Server MCP server (rjw34/weather-edge-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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