Read any pending output from a device session without sending a new command.
AI agents call read_output to retrieve information from Network Device Assistant without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves output that has already been generated by a device session. It performs a passive read operation with no capability to modify, execute, or delete anything. The absence of side effects and the read-only nature clearly place it in the Read category. Severity is low because reading existing output from a network device session poses minimal risk even if misused by an AI agent.
From the tool's definition Tool description states 'Read any pending output from a device session without sending a new command.' The verb 'read' and the explicit statement that no new command is sent indicate data retrieval with no side effects.
Attacks that exploit this kind of access
Read any pending output from a device session without sending a new command. It is categorised as a Read tool in the Network Device Assistant MCP Server, which means it retrieves data without modifying state.
Register the Network Device Assistant MCP server in PolicyLayer and add a rule for read_output: 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 Network Device Assistant. Nothing to install.
read_output 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 read_output 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 read_output. 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.
read_output is provided by the Network Device Assistant MCP server (mgarabito/network-device-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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