scratchpad_update · TTG Scratchpad MCP Server MCP

WHAT IT DOES

What scratchpad_update does on TTG Scratchpad MCP Server

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

WHY IT NEEDS A POLICY

Why scratchpad_update needs a policy

The tool name 'scratchpad_update' most naturally maps to Write (modifies/updates data reversibly) rather than Read, Destructive, or Execute. Although the description is unavailable, the presence of full activity logging and workspace isolation, combined with sibling operations like write and delete, indicates this likely updates workspace or task metadata.

From the tool's definition Tool name 'scratchpad_update' combined with sibling tools that include write operations ('scratchpad_write_file','scratchpad_delete_file') and workspace management suggests data modification capability.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

scratchpad_update Rate-limited

scratchpad_update 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": {
    "scratchpad_update": {
      "limits": [
        {
          "counter": "scratchpad_update_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 TTG Scratchpad MCP Server, so you can run agents against it safely.

FAQ

Questions about scratchpad_update

What does the scratchpad_update tool do? +

scratchpad_update. It is categorised as a Write tool in the TTG Scratchpad 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 scratchpad_update? +

Register the TTG Scratchpad MCP Server MCP server in PolicyLayer and add a rule for scratchpad_update: 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 TTG Scratchpad MCP Server. Nothing to install.

What risk level is scratchpad_update? +

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

Can I rate-limit scratchpad_update? +

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

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

scratchpad_update is provided by the TTG Scratchpad MCP Server MCP server (mrgizmo212/scratchpad-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.