AI agents call wait_for_sms to retrieve information from Agentline without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Based on the tool name and server context (capturing SMS/2FA codes), this tool likely waits and retrieves incoming SMS messages — a read/polling operation. However, capturing 2FA codes could facilitate account takeover if misused. Confidence is lowered due to empty description.
From the tool's definition Tool name 'wait_for_sms' and server context involving SMS capture and 2FA codes; description is empty and uninformative.
Attacks that exploit this kind of access
wait_for_sms. It is categorised as a Read tool in the Agentline MCP Server, which means it retrieves data without modifying state.
Register the Agentline MCP server in PolicyLayer and add a rule for wait_for_sms: 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 Agentline. Nothing to install.
wait_for_sms 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 wait_for_sms 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 wait_for_sms. 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.
wait_for_sms is provided by the Agentline MCP server (jgottlieb84/agentline-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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