AI agents call list_keys to retrieve information from Tolgee 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 localization keys from a project without creating, modifying, or deleting any data. It is a pure read operation with minimal risk even if misused by an agent—the worst case is information disclosure about existing translation keys, which is low severity.
From the tool's definition Tool name 'list_keys' and description 'List localization keys in a Tolgee project' indicate a retrieval operation with no modification or side effects.
Attacks that exploit this kind of access
List localization keys in a Tolgee project. It is categorised as a Read tool in the Tolgee MCP Server, which means it retrieves data without modifying state.
Register the Tolgee MCP server in PolicyLayer and add a rule for list_keys: 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 Tolgee. Nothing to install.
list_keys 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 list_keys 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 list_keys. 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.
list_keys is provided by the Tolgee MCP server (ytarfa/tolgee-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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