link_source_record · Anchord MCP: Risk & Policy

WHAT IT DOES

What link_source_record does on Anchord MCP

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

WHY IT NEEDS A POLICY

Why link_source_record needs a policy

This tool creates or reactivates associations in the identity resolution system. While it modifies state, the operation is reversible (links can be removed or updated later). The context of Anchord as an identity resolution platform suggests this affects data relationships rather than destroying them.

From the tool's definition Tool description states 'Create or reactivate a link' which are reversible write operations. The tool modifies the relationship between an AnchorID and source records without permanently deleting data.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

link_source_record Rate-limited

link_source_record 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_source_record": {
      "limits": [
        {
          "counter": "link_source_record_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 Anchord MCP, so you can run agents against it safely.

FAQ

Questions about link_source_record

What does the link_source_record tool do? +

Create or reactivate a link between an AnchorID and a source record. It is categorised as a Write tool in the Anchord 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_source_record? +

Register the Anchord MCP server in PolicyLayer and add a rule for link_source_record: 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 Anchord MCP. Nothing to install.

What risk level is link_source_record? +

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

Can I rate-limit link_source_record? +

Yes. Add a rate_limit block to the link_source_record 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_source_record completely? +

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

link_source_record is provided by the Anchord MCP server (nolenation04/anchord-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.