apply_update_cards_batch · Mochi MCP Server MCP

WHAT IT DOES

What apply_update_cards_batch does on Mochi MCP Server

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

WHY IT NEEDS A POLICY

Why apply_update_cards_batch needs a policy

This tool modifies existing flashcard data in batch form. It is classified as Write rather than Destructive because: (1) updates are reversible operations that do not permanently delete data, (2) the server explicitly provides safety mechanisms (two-phase commits, typed confirmations) typical of Write operations, and (3) batch updates affect multiple records but remain modifiable.

From the tool's definition Tool name contains 'apply_update' and description states 'Apply a batch of card updates.' The server description notes 'updating cards' as a core function and mentions 'safety features like two-phase commits and typed confirmations,' indicating these are…

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

apply_update_cards_batch Rate-limited

apply_update_cards_batch 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": {
    "apply_update_cards_batch": {
      "limits": [
        {
          "counter": "apply_update_cards_batch_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 Mochi MCP Server, so you can run agents against it safely.

FAQ

Questions about apply_update_cards_batch

What does the apply_update_cards_batch tool do? +

Apply a batch of card updates. It is categorised as a Write tool in the Mochi MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on apply_update_cards_batch? +

Register the Mochi MCP Server MCP server in PolicyLayer and add a rule for apply_update_cards_batch: 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 Mochi MCP Server. Nothing to install.

What risk level is apply_update_cards_batch? +

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

Can I rate-limit apply_update_cards_batch? +

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

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

apply_update_cards_batch is provided by the Mochi MCP Server MCP server (nz99/mochi-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.