Retrieves detailed information about a specific variable
AI agents call get-variable to retrieve information from Terrakube MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only queries and returns data about an existing variable. It performs no modifications, deletions, or state changes. Retrieval operations are classified as Read with low severity since they don't expose blast radius for unintended changes to infrastructure.
From the tool's definition Tool name is 'get-variable' and description states it 'Retrieves detailed information about a specific variable' — a pure retrieval operation with no side effects.
Attacks that exploit this kind of access
Retrieves detailed information about a specific variable. It is categorised as a Read tool in the Terrakube MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Terrakube MCP Server MCP server in PolicyLayer and add a rule for get-variable: 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 Terrakube MCP Server. Nothing to install.
get-variable 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 get-variable 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 get-variable. 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.
get-variable is provided by the Terrakube MCP Server MCP server (terrakube-io/mcp-server-terrakube). 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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