memory_link_folder · Claude Memory MCP: Risk & Policy

WHAT IT DOES

What memory_link_folder does on Claude Memory MCP

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

WHY IT NEEDS A POLICY

Why memory_link_folder needs a policy

This tool creates or modifies a project-to-folder binding, which is a data relationship that can be altered or removed later. It does not execute code, delete data irreversibly, or move money. The 'git-synced memory' context suggests it may trigger synchronization, but the core action is binding/linking—a Write operation.

From the tool's definition Tool description states 'Bind a project to a source folder for git-synced memory.' The verb 'bind' indicates creation or modification of a configuration link between a project and folder, which is a reversible write operation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

memory_link_folder Rate-limited

memory_link_folder 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": {
    "memory_link_folder": {
      "limits": [
        {
          "counter": "memory_link_folder_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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

FAQ

Questions about memory_link_folder

What does the memory_link_folder tool do? +

Bind a project to a source folder for git-synced memory. It is categorised as a Write tool in the Claude 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 memory_link_folder? +

Register the Claude Memory MCP server in PolicyLayer and add a rule for memory_link_folder: 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 Claude Memory MCP. Nothing to install.

What risk level is memory_link_folder? +

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

Can I rate-limit memory_link_folder? +

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

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

memory_link_folder is provided by the Claude Memory MCP server (navid-kianfar/claude-memory-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.