Get timeline of interactions with a specific entity
AI agents call memory_timeline to retrieve information from MCP Memory Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries stored interaction history for an entity. It has no side effects, does not modify data, execute code, delete information, or involve financial transactions. It is purely a data retrieval operation, making it a Read category tool with low severity risk.
From the tool's definition Tool name 'memory_timeline' and description 'Get timeline of interactions with a specific entity' both indicate retrieval of historical data without modification. The verb 'Get' explicitly denotes a read operation.
Attacks that exploit this kind of access
Get timeline of interactions with a specific entity. It is categorised as a Read tool in the MCP Memory Server MCP Server, which means it retrieves data without modifying state.
Register the MCP Memory Server MCP server in PolicyLayer and add a rule for memory_timeline: 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 MCP Memory Server. Nothing to install.
memory_timeline 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 memory_timeline 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 memory_timeline. 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.
memory_timeline is provided by the MCP Memory Server MCP server (plumycat/mcp-memory-server). 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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