Reset one Ultrabrain session, or all sessions when all_sessions is true.
AI agents call ultrabrain_reset to permanently remove resources in Ultrabrain — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool irreversibly clears reasoning sessions and their contents. While the data loss is scoped to in-memory reasoning state rather than persistent databases, a reset operation cannot be undone and destroys work products that may be valuable. The 'all_sessions' parameter elevates risk by allowing batch destruction.
From the tool's definition Tool description: 'Reset one Ultrabrain session, or all sessions when all_sessions is true.' The term 'reset' in this context means clearing/wiping session state, which irreversibly removes reasoning artifacts, branching history, and working data without…
Attacks that exploit this kind of access
Reset one Ultrabrain session, or all sessions when all_sessions is true. It is categorised as a Destructive tool in the Ultrabrain MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Ultrabrain MCP server in PolicyLayer and add a rule for ultrabrain_reset: 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 Ultrabrain. Nothing to install.
ultrabrain_reset 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 ultrabrain_reset 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 ultrabrain_reset. 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.
ultrabrain_reset is provided by the Ultrabrain MCP server (lcv-ideas-software/ultrabrain-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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