createScoreConfig · Langfuse Mcp Extended MCP: Risk & Policy

WHAT IT DOES

What createScoreConfig does on Langfuse Mcp Extended

AI agents use createScoreConfig to create or update resources in Langfuse Mcp Extended — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Langfuse Mcp Extended environment.

WHY IT NEEDS A POLICY

Why createScoreConfig needs a policy

This tool creates a new score configuration (a reversible data structure) without executing code, triggering external operations, or deleting data. It is a Write operation because it modifies the state of the system by adding a new configuration. Severity is medium because misconfiguration could affect scoring validation logic but is unlikely to cause critical system failure or data loss.

From the tool's definition Tool name is 'createScoreConfig' and description states 'Create a score configuration' — this creates and stores a new configuration object that defines validation rules.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

createScoreConfig Rate-limited

createScoreConfig stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "createScoreConfig": {
      "limits": [
        {
          "counter": "createscoreconfig_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Langfuse Mcp Extended, so you can run agents against it safely.

FAQ

Questions about createScoreConfig

What does the createScoreConfig tool do? +

Create a score configuration that defines validation rules for scores. Supports numeric ranges, categorical values, and boolean types. It is categorised as a Write tool in the Langfuse Mcp Extended MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on createScoreConfig? +

Register the Langfuse Mcp Extended MCP server in PolicyLayer and add a rule for createScoreConfig: 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 Langfuse Mcp Extended. Nothing to install.

What risk level is createScoreConfig? +

createScoreConfig is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit createScoreConfig? +

Yes. Add a rate_limit block to the createScoreConfig 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.

How do I block createScoreConfig completely? +

Set action: deny in the PolicyLayer policy for createScoreConfig. 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.

What MCP server provides createScoreConfig? +

createScoreConfig is provided by the Langfuse Mcp Extended MCP server (langfuse-mcp-extended). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.