List trusted sources (firewall rules) for a CCX datastore. Shows which CIDRs are allowed to connect.
AI agents call ccx_list_firewall_rules to retrieve information from Severalnines CCX MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and displays existing firewall rule configurations without creating, modifying, or deleting rules. It has no side effects and presents read-only information about security policies. While firewall rules relate to security, the tool itself only queries their current state, making it a Read operation with low severity.
From the tool's definition Tool name contains 'list' and description states 'List trusted sources (firewall rules)' and 'Shows which CIDRs are allowed to connect' — purely informational retrieval with no modification or execution of infrastructure.
Attacks that exploit this kind of access
List trusted sources (firewall rules) for a CCX datastore. Shows which CIDRs are allowed to connect. It is categorised as a Read tool in the Severalnines CCX MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Severalnines CCX MCP Server MCP server in PolicyLayer and add a rule for ccx_list_firewall_rules: 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_list_firewall_rules 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 ccx_list_firewall_rules 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_list_firewall_rules. 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_list_firewall_rules 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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