federate_memory · Tages MCP: Risk & Policy

WHAT IT DOES

What federate_memory does on Tages

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

WHY IT NEEDS A POLICY

Why federate_memory needs a policy

This tool takes a project-scoped memory and promotes/copies it to an organization-wide shared library. This is a write operation that creates or modifies data in a broader scope (org-level). It is reversible in principle (the memory could be removed from the federated library), so it does not qualify as Destructive.

From the tool's definition Promote a project memory to the org-wide federated library

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

federate_memory Rate-limited

federate_memory 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": {
    "federate_memory": {
      "limits": [
        {
          "counter": "federate_memory_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 Tages, so you can run agents against it safely.

FAQ

Questions about federate_memory

What does the federate_memory tool do? +

Promote a project memory to the org-wide federated library. It is categorised as a Write tool in the Tages MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on federate_memory? +

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

What risk level is federate_memory? +

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

Can I rate-limit federate_memory? +

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

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

federate_memory is provided by the Tages MCP server (ryantlee25-droid/tages). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

// THE FULL RECORD

federate_memory is one line of Tages's registry record.

The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.

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