net_raw_tcp_listen
Listen on a local TCP port for one incoming connection.
This record as markdown: /tools/io-github-vmoranv-jshookmcp/net-raw-tcp-listen.md
What net_raw_tcp_listen does on Jshookmcp
AI agents invoke net_raw_tcp_listen to trigger actions in Jshookmcp. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.
Why net_raw_tcp_listen is rated High
Opens a network socket listener, enabling external connections with unpredictable side effects.
From the tool's definition Listen on a local TCP port for one incoming connection
Attacks that exploit this kind of access
The rule that runs net_raw_tcp_listen safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Jshookmcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For net_raw_tcp_listen, this is the rule to start with:
net_raw_tcp_listen stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Jshookmcp, apply this rule, and every net_raw_tcp_listen call is checked against it from then on.
Questions about net_raw_tcp_listen
Listen on a local TCP port for one incoming connection. It is categorised as a Execute tool in the Jshookmcp MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Jshook MCP server in PolicyLayer and add a rule for net_raw_tcp_listen: 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 Jshookmcp. Nothing to install.
net_raw_tcp_listen is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the net_raw_tcp_listen 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 net_raw_tcp_listen. 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.
net_raw_tcp_listen is provided by the Jshook MCP server (@jshookmcp/jshook). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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