Identify the airline behind a pasted flight code (e.g. 'BA117', 'AA 1234'). Returns carrier name, country, and — when ATF supports the airline — the slug and loyalty program so the assistant can pre-fill an add_flight_booking call. Use this any time a user pastes or types a raw flight code withou...
Part of the Award Travel Finder server.
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AI agents call lookup_flight to retrieve information from Award Travel Finder 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_flight 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_flight": {}
}
}See the full Award Travel Finder policy for all 67 tools.
These attack patterns abuse exactly the kind of access lookup_flight 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.
Identify the airline behind a pasted flight code (e.g. 'BA117', 'AA 1234'). Returns carrier name, country, and — when ATF supports the airline — the slug and loyalty program so the assistant can pre-fill an add_flight_booking call. Use this any time a user pastes or types a raw flight code without context.. It is categorised as a Read tool in the Award Travel Finder MCP Server, which means it retrieves data without modifying state.
Register the Award Travel Finder MCP server in PolicyLayer and add a rule for lookup_flight: 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 Award Travel Finder. Nothing to install.
lookup_flight 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_flight 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_flight. 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_flight is provided by the Award Travel Finder MCP server (https://mcp.awardtravelfinder.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 67 Award Travel Finder tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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