AI agents call scf_list_controls to retrieve information from Scf without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries data from a reference catalog of security controls with optional filtering and pagination. It has no side effects—it does not create, modify, delete, or execute anything. The operation is purely informational and read-only, consistent with the Read category.
From the tool's definition Tool name and description use retrieval language: 'List SCF security controls', 'Returns paginated controls', 'Filter by'. The description explicitly describes a query operation with no mention of creation, modification, deletion, or execution of commands.
Attacks that exploit this kind of access
List SCF security controls from the reference catalog. Returns paginated controls with SCF ID, title, description, and mapped frameworks. Filter by domain, framework, or free-text search. It is categorised as a Read tool in the Scf MCP Server, which means it retrieves data without modifying state.
Register the Scf MCP server in PolicyLayer and add a rule for scf_list_controls: 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 Scf. Nothing to install.
scf_list_controls 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 scf_list_controls 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 scf_list_controls. 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.
scf_list_controls is provided by the Scf MCP server (mcp-server-scf). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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