AI agents use scf_batch_update_controls to create or update resources in Scf — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Scf environment.
This tool creates or modifies data in the SCF Controls Platform (status updates to controls), and the changes are reversible (controls can be updated again). The batch nature affects up to 500 records per transaction, increasing blast radius compared to single-record writes, but remains in the Write category since it does not delete data irreversibly, execute arbitrary code, or trigger financial transactions.
From the tool's definition Tool description states "Batch-update up to 500 scoped controls in one transaction (write — editor+ role)" — explicitly labeled as a write operation that modifies controls data reversibly via batch updates.
Attacks that exploit this kind of access
Batch-update up to 500 scoped controls in one transaction (write — editor+ role). Each operation identifies its target by scf_id; status values are lowercase. It is categorised as a Write tool in the Scf MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Scf MCP server in PolicyLayer and add a rule for scf_batch_update_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_batch_update_controls is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the scf_batch_update_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_batch_update_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_batch_update_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.
Teams ship this data inside their own products. See what a licence covers →