Preview how text would be normalized with current rules
AI agents call genji_preview_normalization to retrieve information from Genji 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 and displays information about text normalization transformations. It has no side effects—it only shows a preview of what would happen if normalization were applied, making it a Read category tool. The severity is low because misuse would only result in viewing normalization previews, with no ability to modify, delete, or execute external operations.
From the tool's definition Tool name 'preview_normalization' and description 'Preview how text would be normalized' indicate a read-only operation that displays how normalization rules would transform text without modifying any underlying data or executing external operations.
Attacks that exploit this kind of access
Preview how text would be normalized with current rules. It is categorised as a Read tool in the Genji MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Genji MCP Server MCP server in PolicyLayer and add a rule for genji_preview_normalization: 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 Genji MCP Server. Nothing to install.
genji_preview_normalization 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 genji_preview_normalization 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 genji_preview_normalization. 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.
genji_preview_normalization is provided by the Genji MCP Server MCP server (nakamura196/genji-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.
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