Medium Risk

scratchpad_write

세션에 키-값을 저장합니다. value는 문자열 또는 JSON 직렬화 가능한 값.

Part of the Ai Agent Scratchpad server.

scratchpad_write can modify Ai Agent Scratchpad data, with no limits today. PolicyLayer puts allow, deny, and rate-limit rules on every call. Live in minutes.

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AI agents use scratchpad_write to create or modify resources in Ai Agent Scratchpad. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.

Without a policy, an AI agent could call scratchpad_write repeatedly, creating or modifying resources faster than any human could review. PolicyLayer's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Ai Agent Scratchpad.

Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "scratchpad_write": {
      "limits": [
        {
          "counter": "scratchpad_write_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

See the full Ai Agent Scratchpad policy for all 6 tools.

Get this rule live on your own Ai Agent Scratchpad server in minutes. PolicyLayer enforces it on every call, before it runs.

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These attack patterns abuse exactly the kind of access scratchpad_write gives an agent. Each links to the full case and the policy that stops it:

Browse the full MCP Attack Database →

Every attack above starts with a tool call. PolicyLayer checks each one against your policy first, so scratchpad_write only ever does what you allow.

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Other write tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.

What does the scratchpad_write tool do? +

세션에 키-값을 저장합니다. value는 문자열 또는 JSON 직렬화 가능한 값.. It is categorised as a Write tool in the Ai Agent Scratchpad 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_write? +

Register the Ai Agent Scratchpad MCP server in PolicyLayer and add a rule for scratchpad_write: 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 Ai Agent Scratchpad. Nothing to install.

What risk level is scratchpad_write? +

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

Can I rate-limit scratchpad_write? +

Yes. Add a rate_limit block to the scratchpad_write 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_write completely? +

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

scratchpad_write is provided by the Ai Agent Scratchpad MCP server (https://api.lazy-mac.com/ai-agent-scratchpad/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Ai Agent Scratchpad tool call.

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