Daily Maximum Temperature (CLMMAXT) API Request Parameters: - station: Station code (refer to documentation for full list) - year: Year (1884 - current year, station-specific range) - month: Month (1-12, optional but requires year) - rformat:
AI agents call clmmaxt to retrieve information from Mcp Hko without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a straightforward data retrieval tool that queries weather historical data without side effects, persistent modifications, or code execution. It simply returns temperature information based on the provided station and time parameters. Low severity because misuse would only expose or retrieve existing public weather data with no operational impact.
From the tool's definition Tool name 'clmmaxt' and description 'Daily Maximum Temperature (CLMMAXT) API Request' indicate data retrieval only. Parameters are query inputs (station, year, month) with no modification, deletion, or execution capabilities.
Attacks that exploit this kind of access
Daily Maximum Temperature (CLMMAXT) API Request Parameters: - station: Station code (refer to documentation for full list) - year: Year (1884 - current year, station-specific range) - month: Month (1-12, optional but requires year) - rformat:. It is categorised as a Read tool in the Mcp Hko MCP Server, which means it retrieves data without modifying state.
Register the Mcp Hko MCP server in PolicyLayer and add a rule for clmmaxt: 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 Hko. Nothing to install.
clmmaxt 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 clmmaxt 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 clmmaxt. 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.
clmmaxt is provided by the Mcp Hko MCP server (louiscklaw/mcp-hko). 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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