AI agents call lhl 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 meteorological lightning data from the Hong Kong Observatory API. It performs a read-only query operation with no side effects, no code execution, no data modification, and no destructive capabilities. The parameter 'lang' appears to be a language preference for the response format.
From the tool's definition Tool provides 'Cloud-to-Ground and Cloud-to-Cloud Lightning Count' data retrieval via API request. The description indicates a data query operation with no modification or deletion capability.
Attacks that exploit this kind of access
Cloud-to-Ground and Cloud-to-Cloud Lightning Count (LHL) API Request Parameters: - lang:. 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 lhl: 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.
lhl 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 lhl 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 lhl. 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.
lhl 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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