memento_record_quality_evaluation

WHAT IT DOES

What memento_record_quality_evaluation does on Memento

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

WHY IT NEEDS A POLICY

Why memento_record_quality_evaluation needs a policy

This tool writes/updates evaluation metadata (a quality score) associated with a memory record. It modifies existing data reversibly and does not delete, execute code, or involve financial transactions. The deprecated status slightly lowers confidence but does not change the category. Blast radius is low since it only affects a numeric score on a memory entry.

From the tool's definition 'Record a quality evaluation score for a specific memory. Score should be 0-1.' and '[DEPRECATED]'

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

memento_record_quality_evaluation Rate-limited

memento_record_quality_evaluation 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": {
    "memento_record_quality_evaluation": {
      "limits": [
        {
          "counter": "memento_record_quality_evaluation_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 Memento, so you can run agents against it safely.

FAQ

Questions about memento_record_quality_evaluation

What does the memento_record_quality_evaluation tool do? +

[DEPRECATED] Record a quality evaluation score for a specific memory. Score should be 0-1. It is categorised as a Write tool in the Memento MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on memento_record_quality_evaluation? +

Register the Memento MCP server in PolicyLayer and add a rule for memento_record_quality_evaluation: 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 Memento. Nothing to install.

What risk level is memento_record_quality_evaluation? +

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

Can I rate-limit memento_record_quality_evaluation? +

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

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

memento_record_quality_evaluation is provided by the Memento MCP server (joyciakira/memento). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.