goclaw_custom_tool_list

THE RISK

Low Risk

Why goclaw_custom_tool_list needs a policy

This tool performs a retrieval operation (listing) on custom tools configuration data. It has no side effects, does not create, modify, delete, or execute anything—it only queries and returns existing data. This aligns with the 'Read' category for tools that retrieve or query data without side effects.

From the tool's definition Tool name contains 'list' and description states 'List custom tools defined in GoClaw', indicating a read-only query operation that retrieves information without modifying state.

Documented attack patterns abuse exactly the kind of access goclaw_custom_tool_list gives an agent:

POLICY

How to control goclaw_custom_tool_list

PolicyLayer is an MCP gateway — it sits between your AI agents and GoClaw MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for goclaw_custom_tool_list:

policy.json

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

goclaw_custom_tool_list is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register GoClaw MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

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EXPLORE

Related tools and policies

More GoClaw MCP Server tools

Destructive goclaw_agent_delete Delete an agent (soft delete) Destructive goclaw_agent_files_delete Delete a context file from an agent Destructive goclaw_agent_links_remove Remove a delegation link between agents Destructive goclaw_cron_delete Delete a cron job Destructive goclaw_custom_tool_delete Delete a custom tool from GoClaw Destructive goclaw_mcp_server_delete Remove a registered MCP server from GoClaw Destructive goclaw_memory_delete Delete a memory document Destructive goclaw_provider_delete Remove an LLM provider from GoClaw

All 66 GoClaw MCP Server tools →

Read tools on other servers

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about goclaw_custom_tool_list

What does the goclaw_custom_tool_list tool do? +

List custom tools defined in GoClaw. It is categorised as a Read tool in the GoClaw MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on goclaw_custom_tool_list? +

Register the GoClaw MCP Server MCP server in PolicyLayer and add a rule for goclaw_custom_tool_list: 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 GoClaw MCP Server. Nothing to install.

What risk level is goclaw_custom_tool_list? +

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

Can I rate-limit goclaw_custom_tool_list? +

Yes. Add a rate_limit block to the goclaw_custom_tool_list 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 goclaw_custom_tool_list completely? +

Set action: deny in the PolicyLayer policy for goclaw_custom_tool_list. 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 goclaw_custom_tool_list? +

goclaw_custom_tool_list is provided by the GoClaw MCP Server MCP server (nextlevelbuilder/goclaw-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every GoClaw MCP Server tool call.

Start from GoClaw MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →