Show saved plan file
AI agents call tf_show_plan to retrieve information from Terraform 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 the contents of a saved Terraform plan file. It has no side effects—it does not execute infrastructure changes, modify state, delete resources, or alter configuration. It is purely informational, analogous to a read/query operation. The low severity reflects that misuse would only expose plan details rather than cause infrastructure damage.
From the tool's definition Tool name 'tf_show_plan' and description 'Show saved plan file' indicate retrieval and display of an existing plan file without modification or execution.
Attacks that exploit this kind of access
Show saved plan file. It is categorised as a Read tool in the Terraform MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Terraform MCP Server MCP server in PolicyLayer and add a rule for tf_show_plan: 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 Terraform MCP Server. Nothing to install.
tf_show_plan 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 tf_show_plan 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 tf_show_plan. 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.
tf_show_plan is provided by the Terraform MCP Server MCP server (mjrestivo16/mcp-terraform). 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.
Teams ship this data inside their own products. See what a licence covers →