Remove a trusted source (firewall rule) from a CCX datastore. This is DESTRUCTIVE and may lock out applications or users. You must set confirm to true. Revokes the specified CIDR
AI agents call ccx_delete_firewall_rule to permanently remove resources in Severalnines CCX MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool permanently removes firewall rules that cannot be automatically restored. While not directly deleting data, it irreversibly revokes network access permissions, which can cause immediate operational outages. The explicit DESTRUCTIVE label and requirement for confirmation flag further confirm this classification.
From the tool's definition Tool description explicitly states 'This is DESTRUCTIVE' and 'Remove a trusted source (firewall rule)' with warning that 'may lock out applications or users'. The action 'Revokes the specified CIDR' is irreversible without subsequent re-creation.
Attacks that exploit this kind of access
Remove a trusted source (firewall rule) from a CCX datastore. This is DESTRUCTIVE and may lock out applications or users. You must set confirm to true. Revokes the specified CIDR. It is categorised as a Destructive tool in the Severalnines CCX MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Severalnines CCX MCP Server MCP server in PolicyLayer and add a rule for ccx_delete_firewall_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 Severalnines CCX MCP Server. Nothing to install.
ccx_delete_firewall_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 ccx_delete_firewall_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 ccx_delete_firewall_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.
ccx_delete_firewall_rule is provided by the Severalnines CCX MCP Server MCP server (severalnines/ccx-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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