SelfSubjectRulesReview for the pod
AI agents call list_sa_rules to retrieve information from Gke Cred Audit without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only query against Kubernetes RBAC to enumerate permissions. It uses the Kubernetes SelfSubjectRulesReview API, which is explicitly designed for introspection and auditing of access rights without side effects. This aligns with the server's defensive audit purpose.
From the tool's definition Tool name 'list_sa_rules' and description 'SelfSubjectRulesReview for the pod' indicate a query operation. SelfSubjectRulesReview is a Kubernetes API that retrieves (does not modify) the set of permissions available to the current service account.
Attacks that exploit this kind of access
SelfSubjectRulesReview for the pod. It is categorised as a Read tool in the Gke Cred Audit MCP Server, which means it retrieves data without modifying state.
Register the Gke Cred Audit MCP server in PolicyLayer and add a rule for list_sa_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 Gke Cred Audit. Nothing to install.
list_sa_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 list_sa_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 list_sa_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.
list_sa_rules is provided by the Gke Cred Audit MCP server (rrupesh/mcp-test). 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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