新增业务封锁 IP，并在执行前进行白名单和人工确认校验。
AI agents call block_add_business to permanently remove resources in AF_MCP — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Blocking an IP address on a security device is a destructive/irreversible network operation that can deny service to legitimate users or systems. While unblocking may theoretically exist (apply_blacklist_unblock sibling), the act of adding a block is itself a disruptive, high-impact action. The tool also requires whitelist and manual confirmation checks before execution, indicating awareness of its severity.
From the tool's definition 新增业务封锁 IP (Add business blocking IP) — permanently blocks IP addresses on AF security devices; paired with apply_blacklist_add sibling tool suggesting irreversible network-level blocking
Attacks that exploit this kind of access
新增业务封锁 IP，并在执行前进行白名单和人工确认校验。. It is categorised as a Destructive tool in the AF_MCP MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the AF_ MCP server in PolicyLayer and add a rule for block_add_business: 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 AF_MCP. Nothing to install.
block_add_business is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the block_add_business 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 block_add_business. 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.
block_add_business is provided by the AF_ MCP server (xiaqijun/af_mcp). 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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