brief_restore · Llama MCP: Risk & Policy

WHAT IT DOES

What brief_restore does on Llama

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

WHY IT NEEDS A POLICY

Why brief_restore needs a policy

This tool modifies data by restoring a soft-deleted block to an active state. Soft-delete recovery is reversible (the block can be deleted again), so it does not meet the Destructive threshold. It has Write-category impact because it changes the state of data in the platform.

From the tool's definition Tool name 'brief_restore' and description 'Restore a soft-deleted brief block' indicate it recovers previously deleted data by reversing a soft-delete operation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

brief_restore Rate-limited

brief_restore 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": {
    "brief_restore": {
      "limits": [
        {
          "counter": "brief_restore_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 Llama, so you can run agents against it safely.

FAQ

Questions about brief_restore

What does the brief_restore tool do? +

Restore a soft-deleted brief block. It is categorised as a Write tool in the Llama MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on brief_restore? +

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

What risk level is brief_restore? +

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

Can I rate-limit brief_restore? +

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

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

brief_restore is provided by the Llama MCP server (llama-ventures/llama-cli). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.