promote · Agent Memory Bridge MCP: Risk & Policy

WHAT IT DOES

What promote does on Agent Memory Bridge

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

WHY IT NEEDS A POLICY

Why promote needs a policy

Without a description, classification relies on contextual inference. 'Promote' in a memory system typically means promoting a memory record to higher importance or accessibility—a reversible modification. This is a Write action (modifies state).

From the tool's definition Tool name 'promote' with empty description. In context of a memory/knowledge system ('store', 'recall', 'forget'), 'promote' likely modifies data state (elevating memory priority, visibility, or status) rather than merely reading or deleting.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

promote Rate-limited

promote 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": {
    "promote": {
      "limits": [
        {
          "counter": "promote_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 Agent Memory Bridge, so you can run agents against it safely.

FAQ

Questions about promote

What does the promote tool do? +

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

How do I enforce a policy on promote? +

Register the Agent Memory Bridge MCP server in PolicyLayer and add a rule for promote: 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 Agent Memory Bridge. Nothing to install.

What risk level is promote? +

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

Can I rate-limit promote? +

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

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

promote is provided by the Agent Memory Bridge MCP server (zzhang82/agent-memory-bridge). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.