Books a specific demo time slot. startTime must be an ISO-8601 string returned by list_demo_slots. Returns a confirmation on success.
Part of the Modulos Demo Booking server.
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AI agents call book_demo_slot to retrieve information from Modulos Demo Booking 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 book_demo_slot 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": {
"book_demo_slot": {}
}
}See the full Modulos Demo Booking policy for all 4 tools.
These attack patterns abuse exactly the kind of access book_demo_slot 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.
Books a specific demo time slot. startTime must be an ISO-8601 string returned by list_demo_slots. Returns a confirmation on success.. It is categorised as a Read tool in the Modulos Demo Booking MCP Server, which means it retrieves data without modifying state.
Register the Modulos Demo Booking MCP server in PolicyLayer and add a rule for book_demo_slot: 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 Modulos Demo Booking. Nothing to install.
book_demo_slot 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 book_demo_slot 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 book_demo_slot. 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.
book_demo_slot is provided by the Modulos Demo Booking MCP server (https://www.modulos.ai/api/mcp/). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 4 Modulos Demo Booking tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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