AI agents call days_in_month to retrieve information from Mcp Time without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
date | string | — | The date to check (format: YYYY-MM-DD). Defaults to current date |
Parameters from the server's own tool schema.
This is a simple query function that retrieves calendar information (days in a month) based on an input date. It has no side effects, cannot modify data, execute code, or affect system state. The blast radius of misuse is minimal—an attacker could only retrieve calendar metadata, which is public knowledge.
From the tool's definition Tool name and description indicate a pure read operation: 'Returns the number of days in the month of a given date.' No modification, deletion, execution, or financial operation is performed.
Attacks that exploit this kind of access
Returns the number of days in the month of a given date. It is categorised as a Read tool in the Mcp Time MCP Server, which means it retrieves data without modifying state.
days_in_month accepts 1 parameter: date. The full parameter table on this page comes from the server's own tool schema.
Register the Mcp Time MCP server in PolicyLayer and add a rule for days_in_month: 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 Mcp Time. Nothing to install.
days_in_month 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 days_in_month 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 days_in_month. 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.
days_in_month is provided by the Mcp Time MCP server (@mcpcentral/mcp-time). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
Teams ship this data inside their own products. See what a licence covers →