Hourly Heights of Astronomical Tides (HHOT) API Request Parameters: - station: CCH/CLK/CMW/KCT/KLW/LOP/MWC/QUB/SPW/TAO/TBT/TMW/TPK/WAG - year: 2022-2024 - month: (Optional) 1-12 - day: (Optional) 1-31 - hour: (Optional) 0-23 - rformat:
AI agents call hhhot 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 queries publicly available tide forecast data from the Hong Kong Observatory with no side effects. It performs a simple read operation against a meteorological database. No data is created, modified, deleted, or executed. The blast radius of misuse is minimal—an AI agent could only retrieve tide information, which is non-sensitive and already public.
From the tool's definition Tool retrieves 'Hourly Heights of Astronomical Tides' data from a weather/observatory API. Parameters are all input filters (station, year, month, day, hour, rformat) with no modification, deletion, or execution capabilities.
Attacks that exploit this kind of access
Hourly Heights of Astronomical Tides (HHOT) API Request Parameters: - station: CCH/CLK/CMW/KCT/KLW/LOP/MWC/QUB/SPW/TAO/TBT/TMW/TPK/WAG - year: 2022-2024 - month: (Optional) 1-12 - day: (Optional) 1-31 - hour: (Optional) 0-23 - 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 hhhot: 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.
hhhot 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 hhhot 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 hhhot. 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.
hhhot 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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