edit_memory · Flashcard MCP: Risk & Policy

WHAT IT DOES

What edit_memory does on Flashcard MCP

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

WHY IT NEEDS A POLICY

Why edit_memory needs a policy

This tool modifies project state in a reversible manner. While 'memory' in the context of a flashcard/spaced repetition system likely refers to the SM-2 algorithm's internal state tracking (ease factors, intervals, repetition counts), editing such data could affect learning schedules and user progress. This is Write-category because changes are modifiable and not destructive.

From the tool's definition Tool name 'edit_memory' combined with description 'Make a targeted edit to a project' indicates modification of existing project data. The word 'edit' signals reversible data modification rather than deletion or execution.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

edit_memory Rate-limited

edit_memory 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": {
    "edit_memory": {
      "limits": [
        {
          "counter": "edit_memory_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 Flashcard MCP, so you can run agents against it safely.

FAQ

Questions about edit_memory

What does the edit_memory tool do? +

Make a targeted edit to a project. It is categorised as a Write tool in the Flashcard 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 edit_memory? +

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

What risk level is edit_memory? +

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

Can I rate-limit edit_memory? +

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

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

edit_memory is provided by the Flashcard MCP server (louislva/flashcards-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.