AI agents call memento_project_state_summary 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 tool retrieves and summarizes project state information without creating, modifying, deleting, executing external operations, or committing financial obligations. Even though it is marked deprecated, it remains a read-only operation. The low severity reflects minimal blast radius: misuse would only expose information already accessible within the system, not cause harmful state changes or external effects.
From the tool's definition Tool name and description indicate it 'Get[s] a human-readable summary of the project state' — a retrieval operation with no side effects. The verb 'Get' and the phrase 'for context injection' confirm this is a query operation.
Attacks that exploit this kind of access
[DEPRECATED] Get a human-readable summary of the project state for context injection into prompts. 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_project_state_summary: 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_project_state_summary 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_project_state_summary 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_project_state_summary. 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_project_state_summary 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.
Teams ship this data inside their own products. See what a licence covers →