radql_list_data_types

List all available RadQL data types (discovery). ALWAYS call this FIRST before using other RadQL tools to discover what data is available to query. Returns data types like

ServerRAD Security
CategoryRead

How to control radql_list_data_types ↓

WHAT IT DOES

What radql_list_data_types does on RAD Security

AI agents call radql_list_data_types to retrieve information from RAD Security without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

THE RISK

Low Risk

Why radql_list_data_types needs a policy

This tool performs information discovery by querying and returning available RadQL data types. It retrieves data without modifying, executing, or deleting anything. The purpose is to enable subsequent queries by listing what can be queried. This is a foundational read operation with minimal risk if misused by an AI agent.

From the tool's definition Tool name contains 'list', description states 'List all available RadQL data types (discovery)' and 'Returns data types'. This is a read-only discovery operation that retrieves metadata about available data types with no side effects.

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

POLICY

How to control radql_list_data_types

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

policy.json

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

radql_list_data_types 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 RAD Security — 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 RAD Security tools

Execute run_workflow Run a workflow with optional argument overrides Execute radql_batch_query Execute multiple RadQL queries in parallel for efficiency. Useful for fetching related dat Execute radql_query_builder Helper tool to build RadQL queries programmatically from structured conditions. Useful whe Write add_workflow_schedule Add a cron-based schedule to a workflow. The schedule will trigger the workflow automatica Write create_custom_workflow Create a new custom workflow from YAML definition. The YAML will be validated before deplo Write mark_inbox_item_as_false_positive Mark an inbox item as a false positive with a reason Write update_custom_workflow Update an existing custom workflow with new YAML. Only custom workflows (created via creat Write update_security_finding_status Update the status of a security finding

All 55 RAD Security 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 radql_list_data_types

What does the radql_list_data_types tool do? +

List all available RadQL data types (discovery). ALWAYS call this FIRST before using other RadQL tools to discover what data is available to query. Returns data types like. It is categorised as a Read tool in the RAD Security MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on radql_list_data_types? +

Register the RAD Security MCP server in PolicyLayer and add a rule for radql_list_data_types: 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 RAD Security. Nothing to install.

What risk level is radql_list_data_types? +

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

Can I rate-limit radql_list_data_types? +

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

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

radql_list_data_types is provided by the RAD Security MCP server (rad-security/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every RAD Security tool call.

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

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55 RAD Security tools catalogued and risk-classified — across an index of 43,000+ MCP servers.