cja_create_calculated_metric · Adobe Cja MCP: Risk & Policy

WHAT IT DOES

What cja_create_calculated_metric does on Adobe Cja

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

WHY IT NEEDS A POLICY

Why cja_create_calculated_metric needs a policy

Creating a calculated metric is a reversible data modification operation — it adds a new derived metric definition to the analytics system. This is characteristic of Write operations (create, update, post). While the description is empty, the name and server context are sufficiently clear.

From the tool's definition Tool name 'cja_create_calculated_metric' indicates creation of a new calculated metric artifact within Adobe Customer Journey Analytics.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

cja_create_calculated_metric Rate-limited

cja_create_calculated_metric 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": {
    "cja_create_calculated_metric": {
      "limits": [
        {
          "counter": "cja_create_calculated_metric_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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Instant setup, no code required.

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

FAQ

Questions about cja_create_calculated_metric

What does the cja_create_calculated_metric tool do? +

cja_create_calculated_metric. It is categorised as a Write tool in the Adobe Cja MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on cja_create_calculated_metric? +

Register the Adobe Cja MCP server in PolicyLayer and add a rule for cja_create_calculated_metric: 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 Adobe Cja. Nothing to install.

What risk level is cja_create_calculated_metric? +

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

Can I rate-limit cja_create_calculated_metric? +

Yes. Add a rate_limit block to the cja_create_calculated_metric 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 cja_create_calculated_metric completely? +

Set action: deny in the PolicyLayer policy for cja_create_calculated_metric. 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 cja_create_calculated_metric? +

cja_create_calculated_metric is provided by the Adobe Cja MCP server (markhilton/adobe-cja-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.