Get all events for today
AI agents call get_today_events to retrieve information from macOS MCP Servers without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries calendar information and returns results with no side effects. It falls squarely into the Read category as it only retrieves data. The severity is low because exposure of today's calendar events, while potentially sensitive, does not enable destructive or financial operations, and the risk is mitigated by typical calendar privacy expectations.
From the tool's definition Tool name is 'get_today_events' and description states 'Get all events for today' — this retrieves calendar event data without modifying, deleting, or executing actions.
Attacks that exploit this kind of access
Get all events for today. It is categorised as a Read tool in the macOS MCP Servers MCP Server, which means it retrieves data without modifying state.
Register the macOS MCP Servers MCP server in PolicyLayer and add a rule for get_today_events: 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 macOS MCP Servers. Nothing to install.
get_today_events 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 get_today_events 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 get_today_events. 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.
get_today_events is provided by the macOS MCP Servers MCP server (tdisawas0github/mcp). 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.
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