Critical Risk →

mail.delete_thread

Delete an entire thread and all its messages

Bulk/mass operation — affects multiple targets

Part of the Hivekey MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

mailgent/hivekey Destructive Risk 5/5

AI agents may call mail.delete_thread to permanently remove or destroy resources in Hivekey. Without a policy, an autonomous agent could delete critical data in a loop with no way to undo the damage. Intercept blocks destructive tools by default and requires explicit human approval before enabling them.

Without a policy, an AI agent could call mail.delete_thread in a loop, permanently destroying resources in Hivekey. There is no undo for destructive operations. Intercept blocks this tool by default and only allows it when a human explicitly approves the action.

Destructive tools permanently remove data. Block by default. Only enable with explicit approval workflows.

mailgent-hivekey.yaml
tools:
  mail.delete_thread:
    rules:
      - action: deny
        reason: "Blocked by default — enable with approval"

See the full Hivekey policy for all 23 tools.

Tool Name mail.delete_thread
Category Destructive
MCP Server Hivekey MCP Server
Risk Level Critical

View all 23 tools →

Agents calling destructive-class tools like mail.delete_thread have been implicated in these attack patterns. Read the full case and prevention policy for each:

Browse the full MCP Attack Database →

Other tools in the Destructive risk category across the catalogue. The same policy patterns (deny, require_approval) apply to each.

mail.delete_thread is one of the critical-risk operations in Hivekey. For the full severity-focused view — only the critical-risk tools with their recommended policies — see the breakdown for this server, or browse all critical-risk tools across every MCP server.

What does the mail.delete_thread tool do? +

Delete an entire thread and all its messages. It is categorised as a Destructive tool in the Hivekey MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on mail.delete_thread? +

Add a rule in your Intercept YAML policy under the tools section for mail.delete_thread. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Hivekey MCP server.

What risk level is mail.delete_thread? +

mail.delete_thread is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit mail.delete_thread? +

Yes. Add a rate_limit block to the mail.delete_thread rule in your Intercept 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 mail.delete_thread completely? +

Set action: deny in the Intercept policy for mail.delete_thread. 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 mail.delete_thread? +

mail.delete_thread is provided by the Hivekey MCP server (mailgent/hivekey). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policies on Hivekey

Open source. One binary. Zero dependencies.

npx -y @policylayer/intercept
github.com/policylayer/intercept →
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