Tap the Search bar on the home screen.
AI agents invoke open_search to trigger actions in Vphone. 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.
This tool performs a UI interaction (tap) on a virtual iOS device, triggering an external operation on the virtual machine. It is not merely reading data — it executes a touch input action that changes the device state by opening the search interface. Severity is low as the blast radius is minimal; it simply opens a search bar.
From the tool's definition Tap the Search bar on the home screen
Documented attack patterns abuse exactly the kind of access open_search gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Vphone, and nothing reaches the server without passing your rules. This is the rule we recommend for open_search:
{
"version": "1",
"default": "deny",
"tools": {
"open_search": {
"limits": [
{
"counter": "open_search_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}open_search 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.
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Tap the Search bar on the home screen. It is categorised as a Execute tool in the Vphone MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Vphone MCP server in PolicyLayer and add a rule for open_search: 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 Vphone. Nothing to install.
open_search 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 open_search 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 open_search. 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.
open_search is provided by the Vphone MCP server (pluginslab/vphone-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Vphone, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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17 Vphone tools catalogued and risk-classified — across an index of 43,000+ MCP servers.