entity_timeline

\u03B7.4.4 \u2014 Get all temporal versions of an entity in chronological order (by validFrom asc, with unbounded entities last). Returns the v1.8 supersession chain when one exists.

SERVEREnhanced Knowledge Graph Memory Server SOURCEdanielsimonjr/memory-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/danielsimonjr-memory-mcp/entity-timeline.md

WHAT IT DOES

What entity_timeline does on Enhanced Knowledge Graph Memory Server

AI agents call entity_timeline to retrieve information from Enhanced Knowledge Graph Memory Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why entity_timeline is rated Low

Even though entity_timeline only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs entity_timeline safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Enhanced Knowledge Graph Memory Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For entity_timeline, this is the rule to start with:

entity_timeline Allowed

entity_timeline is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "entity_timeline": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Enhanced Knowledge Graph Memory Server, apply this rule, and every entity_timeline call is checked against it from then on.

FAQ

Questions about entity_timeline

What does the entity_timeline tool do? +

\u03B7.4.4 \u2014 Get all temporal versions of an entity in chronological order (by validFrom asc, with unbounded entities last). Returns the v1.8 supersession chain when one exists. It is categorised as a Read tool in the Enhanced Knowledge Graph Memory Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on entity_timeline? +

Register the Enhanced Knowledge Graph Memory Server MCP server in PolicyLayer and add a rule for entity_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 Enhanced Knowledge Graph Memory Server. Nothing to install.

What risk level is entity_timeline? +

entity_timeline is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit entity_timeline? +

Yes. Add a rate_limit block to the entity_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.

How do I block entity_timeline completely? +

Set action: deny in the PolicyLayer policy for entity_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.

What MCP server provides entity_timeline? +

entity_timeline is provided by the Enhanced Knowledge Graph Memory Server MCP server (danielsimonjr/memory-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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