unarchive_matter · Smokeball MCP: Risk & Policy

WHAT IT DOES

What unarchive_matter does on Smokeball

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

WHY IT NEEDS A POLICY

Why unarchive_matter needs a policy

This tool modifies the state of a matter by removing its archived status, making it a Write operation. It is reversible (can be re-archived), so it does not qualify as Destructive.

From the tool's definition Tool name 'unarchive_matter' and description 'Unarchive a matter' indicate a reversible state change operation that restores a previously archived matter to active status.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

unarchive_matter Rate-limited

unarchive_matter 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": {
    "unarchive_matter": {
      "limits": [
        {
          "counter": "unarchive_matter_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 Smokeball, so you can run agents against it safely.

FAQ

Questions about unarchive_matter

What does the unarchive_matter tool do? +

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

How do I enforce a policy on unarchive_matter? +

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

What risk level is unarchive_matter? +

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

Can I rate-limit unarchive_matter? +

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

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

unarchive_matter is provided by the Smokeball MCP server (rosenadvertising/smokeball-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.