edit_inbox · Jikan MCP: Risk & Policy

WHAT IT DOES

What edit_inbox does on Jikan

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

WHY IT NEEDS A POLICY

Why edit_inbox needs a policy

Without a description, confidence is reduced, but the naming pattern and sibling tools (archive_inbox, create_todo, delete_emotion_event) suggest this server manages reversible data modifications. 'edit_inbox' most likely updates or modifies inbox entries rather than reading, executing, or destroying data.

From the tool's definition Tool name 'edit_inbox' combined with server context showing inbox management capabilities (archive_inbox, create_todo suggest data modification operations). The 'edit_' prefix indicates modifying existing data.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

edit_inbox Rate-limited

edit_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": {
    "edit_inbox": {
      "limits": [
        {
          "counter": "edit_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 Jikan, so you can run agents against it safely.

FAQ

Questions about edit_inbox

What does the edit_inbox tool do? +

edit_inbox. It is categorised as a Write tool in the Jikan MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on edit_inbox? +

Register the Jikan MCP server in PolicyLayer and add a rule for edit_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 Jikan. Nothing to install.

What risk level is edit_inbox? +

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

Can I rate-limit edit_inbox? +

Yes. Add a rate_limit block to the edit_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 edit_inbox completely? +

Set action: deny in the PolicyLayer policy for edit_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 edit_inbox? +

edit_inbox is provided by the Jikan MCP server (thunderrabbit/jikan). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.