event_subscribe
Start real-time monitoring of Apple data changes: calendar, reminders, clipboard, mail unread count, focus mode, now-playing track, and watched file paths.
This record as markdown: /tools/io-github-heznpc-iconnect/event-subscribe.md
What event_subscribe does on Iconnect
AI agents invoke event_subscribe to trigger actions in Iconnect. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.
Why event_subscribe is rated High
This tool establishes persistent listeners on sensitive system state changes across Apple ecosystem. While labeled a 'subscribe' operation (typically Read-like), the actual function is to execute monitoring hooks that trigger callbacks—placing it in Execute category. The breadth of monitored data (clipboard access is particularly sensitive for credential/secret leakage) and real-time nature elevates severity to high.
From the tool's definition Subscribes to real-time monitoring of multiple system resources: calendar, reminders, clipboard, mail, focus mode, now-playing track, and watched file paths. These are system-level hooks that actively monitor and respond to Apple OS events.
Attacks that exploit this kind of access
The rule that runs event_subscribe safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Iconnect, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For event_subscribe, this is the rule to start with:
event_subscribe stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Iconnect, apply this rule, and every event_subscribe call is checked against it from then on.
Questions about event_subscribe
Start real-time monitoring of Apple data changes: calendar, reminders, clipboard, mail unread count, focus mode, now-playing track, and watched file paths. It is categorised as a Execute tool in the Iconnect MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Iconnect MCP server in PolicyLayer and add a rule for event_subscribe: 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 Iconnect. Nothing to install.
event_subscribe is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the event_subscribe 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 event_subscribe. 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.
event_subscribe is provided by the Iconnect MCP server (iconnect-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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