AI agents call memento_list_active_coercion_presets to retrieve information from Memento without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a Read operation—it retrieves and enumerates available presets. However, severity is elevated to medium rather than low because the context involves 'Active Coercion' rules that could influence autonomous agent behavior; understanding what coercion presets are available is reconnaissance data that could inform misuse of coercion tools.
From the tool's definition Tool name includes 'list' which retrieves data without modification. Description states it lists 'available Active Coercion preset packs', indicating a query/retrieval operation with no side effects.
Attacks that exploit this kind of access
[DEPRECATED] List available Active Coercion preset packs. It is categorised as a Read tool in the Memento MCP Server, which means it retrieves data without modifying state.
Register the Memento MCP server in PolicyLayer and add a rule for memento_list_active_coercion_presets: 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.
memento_list_active_coercion_presets is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the memento_list_active_coercion_presets 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.
Set action: deny in the PolicyLayer policy for memento_list_active_coercion_presets. 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.
memento_list_active_coercion_presets 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.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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