memento_apply_active_coercion_preset

WHAT IT DOES

What memento_apply_active_coercion_preset does on Memento

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

WHY IT NEEDS A POLICY

Why memento_apply_active_coercion_preset needs a policy

This tool modifies system configuration by applying coercion rule presets to the workspace. While deprecated, it performs a write operation that alters existing rules/state (merge semantics). It does not delete (would be Destructive), does not execute arbitrary code (would be Execute), and does not move money (Financial).

From the tool's definition Tool name contains 'apply' and 'preset pack', description states it 'merges by rule id' to a 'current workspace'.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

memento_apply_active_coercion_preset Rate-limited

memento_apply_active_coercion_preset 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": {
    "memento_apply_active_coercion_preset": {
      "limits": [
        {
          "counter": "memento_apply_active_coercion_preset_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 Memento, so you can run agents against it safely.

FAQ

Questions about memento_apply_active_coercion_preset

What does the memento_apply_active_coercion_preset tool do? +

[DEPRECATED] Apply an Active Coercion preset pack to the current workspace (merges by rule id). It is categorised as a Write tool in the 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 memento_apply_active_coercion_preset? +

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

What risk level is memento_apply_active_coercion_preset? +

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

Can I rate-limit memento_apply_active_coercion_preset? +

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

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

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