archive_all_inbox · Repsona MCP: Risk & Policy

WHAT IT DOES

What archive_all_inbox does on Repsona

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

WHY IT NEEDS A POLICY

Why archive_all_inbox needs a policy

This tool performs bulk state modification on inbox items. While not creating new content (Write) or permanently deleting data (Destructive), it irreversibly changes the read status of potentially many messages at once. This qualifies as Write with medium severity due to the bulk nature and potential loss of visibility into unread items.

From the tool's definition archive_all_inbox: marking inbox messages as read in bulk. The description in Japanese translates to 'mark all inbox items as read'. This modifies the state of multiple inbox items irreversibly (messages cannot be unread), affecting their read status.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

archive_all_inbox Rate-limited

archive_all_inbox 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": {
    "archive_all_inbox": {
      "limits": [
        {
          "counter": "archive_all_inbox_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 Repsona, so you can run agents against it safely.

FAQ

Questions about archive_all_inbox

What does the archive_all_inbox tool do? +

受信トレイを一括既読にします. It is categorised as a Write tool in the Repsona MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on archive_all_inbox? +

Register the Repsona MCP server in PolicyLayer and add a rule for archive_all_inbox: 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 Repsona. Nothing to install.

What risk level is archive_all_inbox? +

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

Can I rate-limit archive_all_inbox? +

Yes. Add a rate_limit block to the archive_all_inbox 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 archive_all_inbox completely? +

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

archive_all_inbox is provided by the Repsona MCP server (@bellx2/repsona-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.