List all countries and territories tracked by ReliefWeb, optionally filtered to active humanitarian situations. Returns ISO3 codes and status for each entry — use the ISO3 code with reliefweb_get_country to fetch a full profile. Set crisis_only=true to limit results to countries with active human...
Part of the Reliefweb Mcp Server server.
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AI agents call reliefweb_list_countries to retrieve information from Reliefweb Mcp Server 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 reliefweb_list_countries 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": {
"reliefweb_list_countries": {}
}
}See the full Reliefweb Mcp Server policy for all 9 tools.
These attack patterns abuse exactly the kind of access reliefweb_list_countries 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.
List all countries and territories tracked by ReliefWeb, optionally filtered to active humanitarian situations. Returns ISO3 codes and status for each entry — use the ISO3 code with reliefweb_get_country to fetch a full profile. Set crisis_only=true to limit results to countries with active humanitarian situations.. It is categorised as a Read tool in the Reliefweb Mcp Server MCP Server, which means it retrieves data without modifying state.
Register the Reliefweb Mcp Server MCP server in PolicyLayer and add a rule for reliefweb_list_countries: 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 Reliefweb Mcp Server. Nothing to install.
reliefweb_list_countries 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 reliefweb_list_countries 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 reliefweb_list_countries. 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.
reliefweb_list_countries is provided by the Reliefweb Mcp Server MCP server (@cyanheads/reliefweb-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 9 Reliefweb Mcp Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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