Remove lines or blocks from the end of a scratchpad. Does not return content after completion.
AI agents call chop-scratchpad to permanently remove resources in Scratchpad MCP — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Removing content from a scratchpad without returning the deleted data constitutes an irreversible destructive operation. Since the removed lines cannot be recovered via this tool, misuse by an AI agent could result in permanent loss of scratchpad content, warranting a high severity rating.
From the tool's definition "Remove lines or blocks from the end of a scratchpad" — removal of content is irreversible data deletion; "Does not return content after completion" reinforces that removed data is not recoverable through this tool.
Attacks that exploit this kind of access
Remove lines or blocks from the end of a scratchpad. Does not return content after completion. It is categorised as a Destructive tool in the Scratchpad MCP MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Scratchpad MCP server in PolicyLayer and add a rule for chop-scratchpad: 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 Scratchpad MCP. Nothing to install.
chop-scratchpad is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the chop-scratchpad 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.
Set action: deny in the PolicyLayer policy for chop-scratchpad. 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.
chop-scratchpad is provided by the Scratchpad MCP server (pc035860/scratchpad-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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