AI agents call get_character to retrieve information from ChatRPG without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns character data without modifying, deleting, or executing any game logic. It is purely a data retrieval operation. The blast radius is minimal—retrieving a character sheet cannot cause harm to the game state or user data. Low severity reflects that this is a safe, read-only operation typical in a game management context.
From the tool's definition Tool name 'get_character' and description 'Retrieve an existing D&D 5e character by ID' indicate a retrieval operation with no side effects or modifications to data.
Attacks that exploit this kind of access
Retrieve an existing D&D 5e character by ID. It is categorised as a Read tool in the ChatRPG MCP Server, which means it retrieves data without modifying state.
Register the ChatRPG MCP server in PolicyLayer and add a rule for get_character: 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 ChatRPG. Nothing to install.
get_character 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 get_character 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 get_character. 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.
get_character is provided by the ChatRPG MCP server (mnehmos/mnehmos.chatrpg.game). 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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