bitrix_task_defer · Email MCP Server MCP: Risk & Policy

WHAT IT DOES

What bitrix_task_defer does on Email MCP Server

AI agents use bitrix_task_defer to create or update resources in Email MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Email MCP Server environment.

WHY IT NEEDS A POLICY

Why bitrix_task_defer needs a policy

The tool defers a task by changing its status in Bitrix24. This is a reversible state modification (Write), as the status can be changed again. The description is truncated, lowering confidence slightly, but 'changes status' clearly indicates a write/update operation. Severity is medium as task status changes could disrupt workflows if misused.

From the tool's definition Defer a task in Bitrix24 (changes status to

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

bitrix_task_defer Rate-limited

bitrix_task_defer stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "bitrix_task_defer": {
      "limits": [
        {
          "counter": "bitrix_task_defer_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Email MCP Server, so you can run agents against it safely.

FAQ

Questions about bitrix_task_defer

What does the bitrix_task_defer tool do? +

Defer a task in Bitrix24 (changes status to. It is categorised as a Write tool in the Email MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on bitrix_task_defer? +

Register the Email MCP Server MCP server in PolicyLayer and add a rule for bitrix_task_defer: 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 Email MCP Server. Nothing to install.

What risk level is bitrix_task_defer? +

bitrix_task_defer is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit bitrix_task_defer? +

Yes. Add a rate_limit block to the bitrix_task_defer 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.

How do I block bitrix_task_defer completely? +

Set action: deny in the PolicyLayer policy for bitrix_task_defer. 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 bitrix_task_defer? +

bitrix_task_defer is provided by the Email MCP Server MCP server (sventern/mcp_email). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.