Unlock a flight offer for booking — $1 proof-of-intent fee. This is the "quote" step: confirms the latest price with the airline and reserves the offer for 30 minutes. ALWAYS call this before book_flight so the user can see the confirmed price. If the confirmed price differs from the search price...
Part of the BoostedTravel server.
Free to start. No card required.
AI agents use unlock_flight_offer to create or modify resources in BoostedTravel. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.
Without a policy, an AI agent could call unlock_flight_offer repeatedly, creating or modifying resources faster than any human could review. PolicyLayer's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach BoostedTravel.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"unlock_flight_offer": {
"limits": [
{
"counter": "unlock_flight_offer_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full BoostedTravel policy for all 8 tools.
These attack patterns abuse exactly the kind of access unlock_flight_offer gives an agent. Each links to the full case and the policy that stops it:
Other write tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.
Unlock a flight offer for booking — $1 proof-of-intent fee. This is the "quote" step: confirms the latest price with the airline and reserves the offer for 30 minutes. ALWAYS call this before book_flight so the user can see the confirmed price. If the confirmed price differs from the search price, inform the user before proceeding. Requires payment method (call setup_payment first). SAFETY: Charges $1. Not idempotent — calling twice on the same offer will charge twice.. It is categorised as a Write tool in the BoostedTravel MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the BoostedTravel MCP server in PolicyLayer and add a rule for unlock_flight_offer: 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 BoostedTravel. Nothing to install.
unlock_flight_offer is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the unlock_flight_offer 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 unlock_flight_offer. 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.
unlock_flight_offer is provided by the BoostedTravel MCP server (https://api.boostedchat.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 8 BoostedTravel tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
4,600+ MCP servers and 31,000+ tools scanned and risk-classified.