AI agents call read_game_state to retrieve information from Civ6mcp without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a pure read operation: it parses a save file and returns informational data (leader, civilization, era, difficulty, other players). There are no side effects, no data modification, no code execution, and no irreversible actions. The worst-case misuse would be exfiltration of game state information, which has negligible real-world impact for a game analysis tool.
From the tool's definition Tool name includes 'read' and description states it 'Parse a Civilization VI save file and return the current game state'—retrieves game data without modification or execution of game actions.
Attacks that exploit this kind of access
Parse a Civilization VI save file and return the current game state including leader, civilization, era, difficulty, and other players. It is categorised as a Read tool in the Civ6mcp MCP Server, which means it retrieves data without modifying state.
Register the Civ6 MCP server in PolicyLayer and add a rule for read_game_state: 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 Civ6mcp. Nothing to install.
read_game_state 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 read_game_state 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 read_game_state. 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.
read_game_state is provided by the Civ6 MCP server (lowrykun/civ6mcp). 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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