boost_memento_confidence · MCP Memento MCP: Risk & Policy

WHAT IT DOES

What boost_memento_confidence does on MCP Memento

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

WHY IT NEEDS A POLICY

Why boost_memento_confidence needs a policy

The tool name implies it modifies (boosts) confidence values associated with mementos, which is a reversible write operation. The description is empty, lowering confidence. Based on the sibling tool 'adjust_memento_confidence' and the server's purpose of confidence tracking, this tool likely updates a numeric field in memory entries. No evidence of deletion, execution, or financial impact.

From the tool's definition Tool name 'boost_memento_confidence' and sibling tool 'adjust_memento_confidence' suggest modifying confidence scores of stored memory entries.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

boost_memento_confidence Rate-limited

boost_memento_confidence 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": {
    "boost_memento_confidence": {
      "limits": [
        {
          "counter": "boost_memento_confidence_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 MCP Memento, so you can run agents against it safely.

FAQ

Questions about boost_memento_confidence

What does the boost_memento_confidence tool do? +

boost_memento_confidence. It is categorised as a Write tool in the MCP 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 boost_memento_confidence? +

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

What risk level is boost_memento_confidence? +

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

Can I rate-limit boost_memento_confidence? +

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

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

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