activate_cluster

THE RISK

Medium Risk

Why activate_cluster needs a policy

'Activate' implies changing the state of a memory cluster (e.g., marking it as active), which is a reversible write/update operation. The tool also retrieves associated memories, but the primary action is state modification. Severity is medium because misuse could alter the active state of memory clusters, potentially affecting AI continuity and memory retrieval behavior.

From the tool's definition Activate a memory cluster and get its associated memories

Documented attack patterns abuse exactly the kind of access activate_cluster gives an agent:

POLICY

How to control activate_cluster

PolicyLayer is an MCP gateway — it sits between your AI agents and AGI MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for activate_cluster:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "activate_cluster": {
      "limits": [
        {
          "counter": "activate_cluster_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

activate_cluster 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.

Create a free account and register AGI MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More AGI MCP Server tools

Destructive prune_memories Permanently delete memories based on criteria Destructive cleanup_expired_working_memory Clean up expired working memories Write consolidate_working_memory Consolidate multiple working memories into a single semantic memory Write archive_old_memories Archive old memories based on age and importance criteria Write create_memory Create a new memory with optional type-specific metadata Write create_memory_cluster Create a new memory cluster Write create_memory_relationship Create a relationship between two memories Write create_working_memory Create a temporary working memory with expiration

All 24 AGI MCP Server tools →

Write tools on other servers

M-Team MCP Server download_torrent YouTube MCP Server generate_video_title Android Forensics ADB MCP Server combine_reports 0xarchive web3_signup

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about activate_cluster

What does the activate_cluster tool do? +

Activate a memory cluster and get its associated memories. It is categorised as a Write tool in the AGI MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on activate_cluster? +

Register the AGI MCP Server MCP server in PolicyLayer and add a rule for activate_cluster: 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 AGI MCP Server. Nothing to install.

What risk level is activate_cluster? +

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

Can I rate-limit activate_cluster? +

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

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

activate_cluster is provided by the AGI MCP Server MCP server (quixiai/agi-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every AGI MCP Server tool call.

Start from AGI MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →