Generate a flexible round-trip price calendar for a fixed-length stay around a chosen travel window. Returns (depart date, return date, lowest total price) entries for nearby date pairs that preserve the original trip length; intended for price discovery, not exact itinerary selection.
Risk signalsAccepts file system path (destination) · High parameter count (10 properties)
Part of the Skiplagged MCP server.
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AI agents call sk_flex_return_calendar to retrieve information from Skiplagged MCP 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 sk_flex_return_calendar 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": {
"sk_flex_return_calendar": {}
}
}See the full Skiplagged MCP policy for all 10 tools.
These attack patterns abuse exactly the kind of access sk_flex_return_calendar 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.
Generate a flexible round-trip price calendar for a fixed-length stay around a chosen travel window. Returns (depart date, return date, lowest total price) entries for nearby date pairs that preserve the original trip length; intended for price discovery, not exact itinerary selection.. It is categorised as a Read tool in the Skiplagged MCP MCP Server, which means it retrieves data without modifying state.
Register the Skiplagged MCP server in PolicyLayer and add a rule for sk_flex_return_calendar: 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 Skiplagged MCP. Nothing to install.
sk_flex_return_calendar 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 sk_flex_return_calendar 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 sk_flex_return_calendar. 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.
sk_flex_return_calendar is provided by the Skiplagged MCP server (https://mcp.skiplagged.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 10 Skiplagged MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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