memento_add_active_coercion_rule

WHAT IT DOES

What memento_add_active_coercion_rule does on Memento

AI agents use memento_add_active_coercion_rule 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_add_active_coercion_rule needs a policy

This tool creates or modifies rules that govern AI agent behavior and commit enforcement. While the rule itself constrains subsequent actions, the tool's primary operation is to persistently store a new configuration rule in the workspace. This is a write operation on system configuration. The 'DEPRECATED' status does not change the classification, only reduces real-world impact.

From the tool's definition Tool description states it will 'Add a new deterministic Active Coercion rule' and 'automatically block commits or trigger IDE warnings'. The 'Add' verb indicates creation/modification of configuration data.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

memento_add_active_coercion_rule Rate-limited

memento_add_active_coercion_rule 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_add_active_coercion_rule": {
      "limits": [
        {
          "counter": "memento_add_active_coercion_rule_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_add_active_coercion_rule

What does the memento_add_active_coercion_rule tool do? +

[DEPRECATED] Add a new deterministic Active Coercion rule to the workspace. This rule will automatically block commits or trigger IDE warnings if violated. 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_add_active_coercion_rule? +

Register the Memento MCP server in PolicyLayer and add a rule for memento_add_active_coercion_rule: 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_add_active_coercion_rule? +

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

Can I rate-limit memento_add_active_coercion_rule? +

Yes. Add a rate_limit block to the memento_add_active_coercion_rule 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_add_active_coercion_rule completely? +

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

memento_add_active_coercion_rule 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.