Get usage help for a REMnux tool. Returns the tool
AI agents call get_tool_help to retrieve information from REMnux MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and returns documentation/help text about REMnux tools. It has no side effects, does not execute code, does not modify data, and does not move resources. It is purely informational in nature, making it a Read category risk with low severity.
From the tool's definition Tool description states 'Get usage help for a REMnux tool. Returns the tool' - this is a help/documentation retrieval function that queries information about available tools without modifying or executing them.
Documented attack patterns abuse exactly the kind of access get_tool_help gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and REMnux MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_tool_help:
{
"version": "1",
"default": "deny",
"tools": {
"get_tool_help": {}
}
}get_tool_help is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get usage help for a REMnux tool. Returns the tool. It is categorised as a Read tool in the REMnux MCP Server MCP Server, which means it retrieves data without modifying state.
Register the REMnux MCP Server MCP server in PolicyLayer and add a rule for get_tool_help: 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 REMnux MCP Server. Nothing to install.
get_tool_help 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 get_tool_help 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 get_tool_help. 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.
get_tool_help is provided by the REMnux MCP Server MCP server (remnux/remnux-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 14 REMnux MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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14 REMnux MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.