manage_archives · Instant Meshes MCP: Risk & Policy

WHAT IT DOES

What manage_archives does on Instant Meshes

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

WHY IT NEEDS A POLICY

Why manage_archives needs a policy

Based on the server's stated capability for 'structured model archiving' and the tool name 'manage_archives', this tool likely performs archive creation, modification, or reorganization operations—all Write-category actions. Without explicit description of delete/purge functionality, Write is more appropriate than Destructive.

From the tool's definition Tool name 'manage_archives' combined with server description's mention of 'structured model archiving' suggests the tool creates, modifies, or organizes archive files.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

manage_archives Rate-limited

manage_archives 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": {
    "manage_archives": {
      "limits": [
        {
          "counter": "manage_archives_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 Instant Meshes, so you can run agents against it safely.

FAQ

Questions about manage_archives

What does the manage_archives tool do? +

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

How do I enforce a policy on manage_archives? +

Register the Instant Meshes MCP server in PolicyLayer and add a rule for manage_archives: 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 Instant Meshes. Nothing to install.

What risk level is manage_archives? +

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

Can I rate-limit manage_archives? +

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

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

manage_archives is provided by the Instant Meshes MCP server (lxy2109/instant-meshes-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.