memo_save · Llama MCP: Risk & Policy

WHAT IT DOES

What memo_save does on Llama

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

WHY IT NEEDS A POLICY

Why memo_save needs a policy

The tool creates or modifies deal-related content through manual HTML input. This is a Write operation because it stores new or updated information reversibly. Severity is medium because while it modifies deal data, it appears scoped to memo/override content rather than destructive actions.

From the tool's definition Tool name 'memo_save' combined with description 'Save hand-written HTML as a manual override for a deal' indicates creation or modification of data (a memo/override associated with a deal).

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

memo_save Rate-limited

memo_save 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": {
    "memo_save": {
      "limits": [
        {
          "counter": "memo_save_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 Llama, so you can run agents against it safely.

FAQ

Questions about memo_save

What does the memo_save tool do? +

Save hand-written HTML as a manual override for a deal. It is categorised as a Write tool in the Llama MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on memo_save? +

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

What risk level is memo_save? +

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

Can I rate-limit memo_save? +

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

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

memo_save is provided by the Llama MCP server (llama-ventures/llama-cli). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.