Create a Knowledge Graph link between two entities.
AI agents use link_entities to create or update resources in Turbo Quant Memory MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Turbo Quant Memory MCP Server environment.
Creating links in a knowledge graph modifies the stored data structure reversibly. While not destructive (links can be removed or updated), and not as severe as deleting secrets or executing arbitrary code, this operation does alter the agent's persistent memory state.
From the tool's definition Tool description states 'Create a Knowledge Graph link between two entities' — the verb 'create' indicates data modification.
Documented attack patterns abuse exactly the kind of access link_entities gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Turbo Quant Memory MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for link_entities:
{
"version": "1",
"default": "deny",
"tools": {
"link_entities": {
"limits": [
{
"counter": "link_entities_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}link_entities stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
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Create a Knowledge Graph link between two entities. It is categorised as a Write tool in the Turbo Quant Memory MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Turbo Quant Memory MCP Server MCP server in PolicyLayer and add a rule for link_entities: 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 Turbo Quant Memory MCP Server. Nothing to install.
link_entities is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the link_entities 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 link_entities. 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.
link_entities is provided by the Turbo Quant Memory MCP Server MCP server (lexus2016/turbo_quant_memory). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Turbo Quant Memory MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
19 Turbo Quant Memory MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.