AI agents call zeph_list to retrieve information from Zeph To without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool retrieves and displays historical notification data without modifying, deleting, or executing any operations. It is used for informational purposes only (checking history, avoiding duplicates). This is a classic Read operation with minimal security risk.
From the tool's definition Tool name is 'zeph_list' and description states 'List recent push notifications' and 'check notification history'. This is a query/retrieval operation with no side effects.
Attacks that exploit this kind of access
List recent push notifications. Use this to check notification history, avoid duplicates, or reference previous messages. It is categorised as a Read tool in the Zeph To MCP Server, which means it retrieves data without modifying state.
Register the Zeph To MCP server in PolicyLayer and add a rule for zeph_list: 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 Zeph To. Nothing to install.
zeph_list 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 zeph_list 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 zeph_list. 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.
zeph_list is provided by the Zeph To MCP server (zeph-to/mcp-server). 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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