Look up a country's ISO code by name, or list countries in a group. Args: query: Country name (or partial name) to search for. Use '*' to list all. group: Optional country group filter (e.g. 'sids', 'ldc', 'g20'). Use list_scenarios to find group IDs.
Risk signalsAccepts freeform code/query input (query)
Part of the Climate Impacts server.
Free to start. No card required.
AI agents call lookup_country to retrieve information from Climate Impacts without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though lookup_country only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"lookup_country": {}
}
}See the full Climate Impacts policy for all 8 tools.
These attack patterns abuse exactly the kind of access lookup_country gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
Look up a country's ISO code by name, or list countries in a group. Args: query: Country name (or partial name) to search for. Use '*' to list all. group: Optional country group filter (e.g. 'sids', 'ldc', 'g20'). Use list_scenarios to find group IDs.. It is categorised as a Read tool in the Climate Impacts MCP Server, which means it retrieves data without modifying state.
Register the Climate Impacts MCP server in PolicyLayer and add a rule for lookup_country: 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 Climate Impacts. Nothing to install.
lookup_country 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 lookup_country 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 lookup_country. 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.
lookup_country is provided by the Climate Impacts MCP server (valentinlemaire/climate-impacts). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 8 Climate Impacts tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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