List all available prompts from a target MCP server. Use this to discover what prompt templates a target MCP server provides. Args: - target (string): Target MCP server - command or URL - transport (
AI agents call mcpdev_inspector_list_prompts to retrieve information from MCP Dev MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and enumerates prompt metadata from a target MCP server. It performs a query operation that returns information about available prompts without creating, modifying, deleting, executing code, or moving funds. The blast radius of misuse is minimal—an agent might discover prompts it shouldn't know about, but cannot invoke them or cause harm through listing alone.
From the tool's definition Tool description states 'List all available prompts from a target MCP server' and 'Use this to discover what prompt templates a target MCP server provides.' The verb 'list' and 'discover' indicate read-only query operations with no data modification or side…
Attacks that exploit this kind of access
List all available prompts from a target MCP server. Use this to discover what prompt templates a target MCP server provides. Args: - target (string): Target MCP server - command or URL - transport (. It is categorised as a Read tool in the MCP Dev MCP MCP Server, which means it retrieves data without modifying state.
Register the MCP Dev MCP server in PolicyLayer and add a rule for mcpdev_inspector_list_prompts: 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 MCP Dev MCP. Nothing to install.
mcpdev_inspector_list_prompts 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 mcpdev_inspector_list_prompts 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 mcpdev_inspector_list_prompts. 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.
mcpdev_inspector_list_prompts is provided by the MCP Dev MCP server (kongyo2/mcpdevmcp). 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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