list_processes

List running system processes with CPU, memory usage, and command info. Supports filtering by name and sorting.

SERVERTerminal Guardian SOURCE7majesty-m/terminal-guardian-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/7majesty-m-terminal-guardian-mcp/list-processes.md

WHAT IT DOES

What list_processes does on Terminal Guardian

AI agents call list_processes to retrieve information from Terminal Guardian without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why list_processes is rated Low

The tool queries system state (running processes, resource usage metadata) without side effects. Listing processes is a read-only operation that returns informational data. While process information could theoretically be used for reconnaissance, the tool itself performs no actions that could damage systems, modify data, or execute code.

From the tool's definition Tool description states 'List running system processes' — a retrieval operation with 'filtering by name and sorting' options. No modification, execution, deletion, or financial operations are described.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_processes safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Terminal Guardian, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For list_processes, this is the rule to start with:

list_processes Allowed

list_processes is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_processes": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Terminal Guardian, apply this rule, and every list_processes call is checked against it from then on.

FAQ

Questions about list_processes

What does the list_processes tool do? +

List running system processes with CPU, memory usage, and command info. Supports filtering by name and sorting. It is categorised as a Read tool in the Terminal Guardian MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_processes? +

Register the Terminal Guardian MCP server in PolicyLayer and add a rule for list_processes: 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 Terminal Guardian. Nothing to install.

What risk level is list_processes? +

list_processes is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list_processes? +

Yes. Add a rate_limit block to the list_processes 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.

How do I block list_processes completely? +

Set action: deny in the PolicyLayer policy for list_processes. 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.

What MCP server provides list_processes? +

list_processes is provided by the Terminal Guardian MCP server (7majesty-m/terminal-guardian-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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