Clear all key-value pairs from the store.
AI agents call clear_values to permanently remove resources in Simple MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool performs a bulk delete operation that cannot be undone. It destroys all data in the store at once, making it a Destructive action rather than a simple Write operation. The blast radius is high because an agent misuse could erase entire application state. Confidence is high because the description explicitly indicates irreversible deletion of all stored values.
From the tool's definition Tool description: 'Clear all key-value pairs from the store.' The operation irreversibly wipes all stored data in a single action.
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
Clear all key-value pairs from the store. It is categorised as a Destructive tool in the Simple MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Simple MCP Server MCP server in PolicyLayer and add a rule for clear_values: 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 Simple MCP Server. Nothing to install.
clear_values 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 clear_values 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 clear_values. 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.
clear_values is provided by the Simple MCP Server MCP server (jmgress/simple-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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