Batch convert the provided list of timestamps to date format, used for processing multiple timestamps
AI agents call batchGetDateByTimestamp to retrieve information from Cal Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool takes timestamps as input and returns formatted date representations. It is a stateless transformation that retrieves no external data and performs no write, delete, execute, or financial operations. The batch processing aspect does not change the risk category - it remains a read-only conversion utility with minimal blast radius if misused by an AI agent.
From the tool's definition Tool description states it 'convert[s] the provided list of timestamps to date format' - a pure data retrieval and transformation operation with no side effects, no modifications, no destructive actions, and no financial impact.
Risk signalsBulk/mass operation — affects multiple targets
Documented attack patterns abuse exactly the kind of access batchGetDateByTimestamp gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Cal Server, and nothing reaches the server without passing your rules. This is the rule we recommend for batchGetDateByTimestamp:
{
"version": "1",
"default": "deny",
"tools": {
"batchGetDateByTimestamp": {}
}
}batchGetDateByTimestamp is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Batch convert the provided list of timestamps to date format, used for processing multiple timestamps. It is categorised as a Read tool in the Cal Server MCP Server, which means it retrieves data without modifying state.
Register the Cal Server MCP server in PolicyLayer and add a rule for batchGetDateByTimestamp: 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 Cal Server. Nothing to install.
batchGetDateByTimestamp 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 batchGetDateByTimestamp 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 batchGetDateByTimestamp. 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.
batchGetDateByTimestamp is provided by the Cal Server MCP server (pwh-pwh/cal-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Cal Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
4 Cal Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.