AI agents call memento_pmg_entity_context 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 retrieval operation that queries relationships and dependencies without side effects. While it provides context about dependencies in the system, it merely reads existing data. The deprecation status and informational nature further support low severity. No write, destructive, execute, or financial operations are present.
From the tool's definition Tool retrieves semantic context and relationships for an entity—'Get semantic context for an entity including its dependencies'—with no modification, deletion, or execution of code/commands.
Attacks that exploit this kind of access
[DEPRECATED] Get semantic context for an entity including its relationships (what it depends on, what depends on it, etc.). 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_pmg_entity_context: 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_pmg_entity_context 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_pmg_entity_context 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_pmg_entity_context. 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_pmg_entity_context 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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