AI agents call get_player_count to retrieve information from Runescape without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool purely retrieves public game server statistics without modifying any data, executing commands, or affecting game state. It is a simple information query with minimal blast radius if misused by an AI agent—the worst outcome would be making decisions based on outdated player count data.
From the tool's definition Tool name 'get_player_count' and description 'Returns the number of players currently online' indicate a read-only query that retrieves aggregate statistics about online player counts with no side effects.
Attacks that exploit this kind of access
Returns the number of players currently online in RuneScape and Old School RuneScape. It is categorised as a Read tool in the Runescape MCP Server, which means it retrieves data without modifying state.
Register the Runescape MCP server in PolicyLayer and add a rule for get_player_count: 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 Runescape. Nothing to install.
get_player_count 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_player_count 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_player_count. 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_player_count is provided by the Runescape MCP server (mcp-server-runescape). 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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