AI agents call list_scenes to retrieve information from Prompts 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 information about available development scenarios and recommended tools. It performs a pure read operation without modifying, executing, or deleting any data. The context of the sibling tools (which include write/execute operations like 'add_rule', 'bootstrap', 'commit_dialog') further confirms that 'list_scenes' is a read-only query tool.
From the tool's definition Tool name 'list_scenes' and description '列出所有可用的开发场景及推荐工具' (list all available development scenes/scenarios and recommended tools) indicate a retrieval/query operation with no side effects.
Attacks that exploit this kind of access
【场景列表】列出所有可用的开发场景及推荐工具。. It is categorised as a Read tool in the Prompts MCP Server, which means it retrieves data without modifying state.
Register the Prompts MCP server in PolicyLayer and add a rule for list_scenes: 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 Prompts. Nothing to install.
list_scenes 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_scenes 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_scenes. 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_scenes is provided by the Prompts MCP server (thana0623/pmcp-server). 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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