Read output from an interactive shell session
AI agents call ssh_read_output to retrieve information from MCP SSH Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves/queries output that has already been generated by a shell session. It performs no execution, modification, deletion, or financial operations. The action is purely informational—reading what was already written to a session's output stream.
From the tool's definition Tool name 'ssh_read_output' and description 'Read output from an interactive shell session' indicate retrieval of data with no modification or side effects.
Attacks that exploit this kind of access
Read output from an interactive shell session. It is categorised as a Read tool in the MCP SSH Server MCP Server, which means it retrieves data without modifying state.
Register the MCP SSH Server MCP server in PolicyLayer and add a rule for ssh_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 MCP SSH Server. Nothing to install.
ssh_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 ssh_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 ssh_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.
ssh_read_output is provided by the MCP SSH Server MCP server (mahathirmuh/mcp-ssh-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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