AI agents call config_get to retrieve information from Uefn without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a read-only operation that retrieves configuration values. It has no side effects, does not modify state, and presents minimal risk. The low severity reflects that configuration data is typically non-sensitive in a local editor context, and misuse would only allow an agent to query existing settings rather than alter system behavior or permissions.
From the tool's definition Tool name 'config_get' and description 'Get toolbelt configuration value(s)' indicate retrieval of configuration data without modification.
Documented attack patterns abuse exactly the kind of access config_get gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Uefn, and nothing reaches the server without passing your rules. This is the rule we recommend for config_get:
{
"version": "1",
"default": "deny",
"tools": {
"config_get": {}
}
}config_get is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get toolbelt configuration value(s). It is categorised as a Read tool in the Uefn MCP Server, which means it retrieves data without modifying state.
Register the Uefn MCP server in PolicyLayer and add a rule for config_get: 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 Uefn. Nothing to install.
config_get 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 config_get 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 config_get. 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.
config_get is provided by the Uefn MCP server (quangdang46/uefn-verse-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Uefn, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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143 Uefn tools catalogued and risk-classified — across an index of 43,000+ MCP servers.