Deletes a specific rule from a policy.
AI agents call delete_policy_rule to permanently remove resources in Privy MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool removes a policy rule that cannot be easily recovered. In the context of a blockchain wallet management server (Privy), policies likely control transaction signing, fund transfers, and access controls. Deleting a rule could permanently remove security constraints or approval workflows, potentially enabling unauthorized transactions.
From the tool's definition The tool name is 'delete_policy_rule' and the description states it 'Deletes a specific rule from a policy.' The verb 'Deletes' indicates an irreversible removal operation.
Attacks that exploit this kind of access
Deletes a specific rule from a policy. It is categorised as a Destructive tool in the Privy MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Privy MCP Server MCP server in PolicyLayer and add a rule for delete_policy_rule: 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 Privy MCP Server. Nothing to install.
delete_policy_rule 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 delete_policy_rule 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 delete_policy_rule. 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.
delete_policy_rule is provided by the Privy MCP Server MCP server (privy-io/privy-mcp-server). 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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