uninstall_precommit_guard
AI agents call uninstall_precommit_guard to permanently remove resources in MCP Agent Mail — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
The name suggests removing a pre-commit guard, which would be an irreversible protective mechanism removal. Uninstalling a guard/hook that prevents bad commits could have serious consequences in a multi-agent coding environment. However, the description is empty, so confidence is reduced.
From the tool's definition Tool name 'uninstall_precommit_guard' implies removal of a pre-commit guard/hook; description is empty and uninformative.
Attacks that exploit this kind of access
uninstall_precommit_guard. It is categorised as a Destructive tool in the MCP Agent Mail MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the MCP Agent Mail MCP server in PolicyLayer and add a rule for uninstall_precommit_guard: 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 MCP Agent Mail. Nothing to install.
uninstall_precommit_guard 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 uninstall_precommit_guard 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 uninstall_precommit_guard. 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.
uninstall_precommit_guard is provided by the MCP Agent Mail MCP server (omelchmichael/mcp_agent_mail). 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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