AI agents call pager_get_messages to retrieve information from AetherLink SDR MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves previously decoded pager messages from the SDR system. It performs a read-only operation similar to fetching stored data. No data is created, modified, deleted, or executed. The severity is low because retrieving pager messages has minimal blast radius—an AI agent could at worst access message content but cannot alter systems, execute commands, or cause financial impact.
From the tool's definition Tool name 'pager_get_messages' and description 'Get decoded pager messages' indicate retrieval of existing data with no modification or side effects.
Documented attack patterns abuse exactly the kind of access pager_get_messages gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and AetherLink SDR MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for pager_get_messages:
{
"version": "1",
"default": "deny",
"tools": {
"pager_get_messages": {}
}
}pager_get_messages is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get decoded pager messages. It is categorised as a Read tool in the AetherLink SDR MCP MCP Server, which means it retrieves data without modifying state.
Register the AetherLink SDR MCP server in PolicyLayer and add a rule for pager_get_messages: 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 AetherLink SDR MCP. Nothing to install.
pager_get_messages 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 pager_get_messages 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 pager_get_messages. 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.
pager_get_messages is provided by the AetherLink SDR MCP server (n-erickson/aetherlink-sdr-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from AetherLink SDR MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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26 AetherLink SDR MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.