List all available MCP tools with their descriptions and parameters
AI agents call list_available_tools to retrieve information from 3dspace without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a discovery/informational tool that queries and returns available tools and their metadata. It has no side effects, does not modify data, does not execute operations, and does not access sensitive business data beyond tool descriptions. It is purely a Read operation with minimal security risk.
From the tool's definition Tool name 'list_available_tools' and description 'List all available MCP tools with their descriptions and parameters' indicate a read-only operation that retrieves metadata about tools without modifying any state.
Documented attack patterns abuse exactly the kind of access list_available_tools gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and 3dspace, and nothing reaches the server without passing your rules. This is the rule we recommend for list_available_tools:
{
"version": "1",
"default": "deny",
"tools": {
"list_available_tools": {}
}
}list_available_tools is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
List all available MCP tools with their descriptions and parameters. It is categorised as a Read tool in the 3dspace MCP Server, which means it retrieves data without modifying state.
Register the 3dspace MCP server in PolicyLayer and add a rule for list_available_tools: 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 3dspace. Nothing to install.
list_available_tools 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 list_available_tools 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 list_available_tools. 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.
list_available_tools is provided by the 3dspace MCP server (pgupta1795/3dspace-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from 3dspace, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
7 3dspace tools catalogued and risk-classified — across an index of 43,000+ MCP servers.