Daily Mean Temperature (CLMTEMP) 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 clmtemp 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 tool retrieves historical climate/temperature data from the Hong Kong Observatory. It has no side effects, cannot modify data, and poses minimal risk if misused by an AI agent. Even with arbitrary parameter values, the worst outcome would be receiving irrelevant or empty query results. This is a straightforward read operation.
From the tool's definition Tool name 'clmtemp' and description 'Daily Mean Temperature (CLMTEMP) API Request' indicate data retrieval. Parameters are station, year, month, and rformat—all used to query historical weather data.
Attacks that exploit this kind of access
Daily Mean Temperature (CLMTEMP) 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 clmtemp: 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.
clmtemp 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 clmtemp 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 clmtemp. 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.
clmtemp 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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