AI agents call lucille_rules to retrieve information from Lucille without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves read-only game documentation and strategy information. It has no side effects, does not execute code or commands, does not create or modify game state, and does not handle financial transactions. It is purely informational, making it a Read category tool with low severity.
From the tool's definition Tool name 'lucille_rules' and description 'Learn how to play Lucille Protocol — the game rules, mechanics, and strategy tips' indicate retrieval of informational content about game rules with no modification of data or execution of operations.
Attacks that exploit this kind of access
Learn how to play Lucille Protocol — the game rules, mechanics, and strategy tips. It is categorised as a Read tool in the Lucille MCP Server, which means it retrieves data without modifying state.
Register the Lucille MCP server in PolicyLayer and add a rule for lucille_rules: 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 Lucille. Nothing to install.
lucille_rules 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 lucille_rules 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 lucille_rules. 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.
lucille_rules is provided by the Lucille MCP server (lucille-mcp-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.
Teams ship this data inside their own products. See what a licence covers →