Read a specific data file from the data directory
AI agents call read_data_file to retrieve information from RPG Maker MZ MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves data from RPG Maker MZ project files without modifying, deleting, or executing code. It is a straightforward query operation for accessing game project data. The low severity reflects that reading project files poses minimal risk — the blast radius of accidental misuse is limited to information disclosure rather than data loss or code execution.
From the tool's definition Tool name is 'read_data_file' and description states it 'Read[s] a specific data file from the data directory' — explicit read operation with no mutation or side effects.
Attacks that exploit this kind of access
Read a specific data file from the data directory. It is categorised as a Read tool in the RPG Maker MZ MCP Server MCP Server, which means it retrieves data without modifying state.
Register the RPG Maker MZ MCP Server MCP server in PolicyLayer and add a rule for read_data_file: 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 RPG Maker MZ MCP Server. Nothing to install.
read_data_file 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_data_file 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_data_file. 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_data_file is provided by the RPG Maker MZ MCP Server MCP server (rein1225/rpgmakermz_mcp). 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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