link_knowledge · Self-Improving Memory MCP: Risk & Policy

WHAT IT DOES

What link_knowledge does on Self-Improving Memory MCP

AI agents use link_knowledge to create or update resources in Self-Improving Memory MCP — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Self-Improving Memory MCP environment.

WHY IT NEEDS A POLICY

Why link_knowledge needs a policy

This tool creates relationships/links between existing knowledge entries. It modifies the knowledge graph by adding connections between nodes, which is a reversible write operation. Misuse could corrupt the knowledge graph's relational integrity, but entries themselves are not deleted.

From the tool's definition Link related knowledge entries

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

link_knowledge Rate-limited

link_knowledge 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "link_knowledge": {
      "limits": [
        {
          "counter": "link_knowledge_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Self-Improving Memory MCP, so you can run agents against it safely.

FAQ

Questions about link_knowledge

What does the link_knowledge tool do? +

Link related knowledge entries. It is categorised as a Write tool in the Self-Improving Memory MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on link_knowledge? +

Register the Self-Improving Memory MCP server in PolicyLayer and add a rule for link_knowledge: 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 Self-Improving Memory MCP. Nothing to install.

What risk level is link_knowledge? +

link_knowledge is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit link_knowledge? +

Yes. Add a rate_limit block to the link_knowledge 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 link_knowledge completely? +

Set action: deny in the PolicyLayer policy for link_knowledge. 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 link_knowledge? +

link_knowledge is provided by the Self-Improving Memory MCP server (superpitt/self-improving-memory-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.