List all plans with basic information.
AI agents call list_plans to retrieve information from Planer 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 plan data without creating, modifying, deleting, or executing any operations. It is a read-only operation with minimal security risk, as it only exposes information about plans already stored in the system. The blast radius of misuse is limited to information disclosure.
From the tool's definition Tool name 'list_plans' and description 'List all plans with basic information' indicate a query/retrieval operation with no modification or deletion.
Attacks that exploit this kind of access
List all plans with basic information. It is categorised as a Read tool in the Planer MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Planer MCP Server MCP server in PolicyLayer and add a rule for list_plans: 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 Planer MCP Server. Nothing to install.
list_plans 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_plans 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_plans. 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_plans is provided by the Planer MCP Server MCP server (niradler/mcp-planer). 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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