Turn ANY public booking URL (Cal.com, Calendly, Doctolib, Booksy, Fresha, OpenTable, Setmore, Square, Acuity, Schedulista, Squarespace, BookMyCity) into a callable smb_id you can immediately use with schedule_appointment, send_message, or capture_lead. Idempotent — calling twice returns the same ...
Part of the Agent Broker server.
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AI agents use import_booking_url to create or modify resources in Agent Broker. 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 import_booking_url 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 Agent Broker.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"import_booking_url": {
"limits": [
{
"counter": "import_booking_url_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full Agent Broker policy for all 14 tools.
These attack patterns abuse exactly the kind of access import_booking_url 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.
Turn ANY public booking URL (Cal.com, Calendly, Doctolib, Booksy, Fresha, OpenTable, Setmore, Square, Acuity, Schedulista, Squarespace, BookMyCity) into a callable smb_id you can immediately use with schedule_appointment, send_message, or capture_lead. Idempotent — calling twice returns the same smb_id. EXAMPLE USER QUERIES THAT MATCH THIS TOOL: user: "Book me a haircut at https://cal.com/jane-salon" -> call import_booking_url({"booking_url": "https://cal.com/jane-salon", "vertical": "personal_services"}) -> then schedule_appointment({"smb_id": "<from_above>", "action": "book"}) user: "Schedule with this dentist: https://www.doctolib.fr/dentiste/paris/jean-dupont" -> call import_booking_url({"booking_url": "https://www.doctolib.fr/dentiste/paris/jean-dupont"}) user: "Reserve a table at https://www.opentable.com/r/acme-bistro" -> call import_booking_url({"booking_url": "https://www.opentable.com/r/acme-bistro", "vertical": "restaurants"}) WHEN TO USE: Call this FIRST whenever the user provides a specific booking URL (cal.com/handle, calendly.com/handle/event, doctolib.fr/..., booksy.com/..., opentable.com/r/..., etc.). User patterns that match: 'book me at https://cal.com/...', 'schedule with calendly.com/jane/intro', 'reserve a table at opentable.com/r/...', 'I want to book this dentist: https://www.doctolib.fr/...'. After importing, the returned smb_id can be passed straight to schedule_appointment. WHEN NOT TO USE: Do not use if the user only describes a business by name without a URL — call find_business instead. Do not use for arbitrary websites that are not on the supported booking-platform list (use /supply/platforms to see all 12). COST: $0.005 per_call LATENCY: ~600ms. It is categorised as a Write tool in the Agent Broker MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Agent Broker MCP server in PolicyLayer and add a rule for import_booking_url: 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 Agent Broker. Nothing to install.
import_booking_url 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 import_booking_url 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 import_booking_url. 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.
import_booking_url is provided by the Agent Broker MCP server (https://agent-broker-edge.basil-agent.workers.dev/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 14 Agent Broker tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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