restore_checkpoint

THE RISK

Medium Risk

Why restore_checkpoint needs a policy

This tool performs a state restoration operation that writes/overwrites current system state with previously saved checkpoint data. While not purely destructive (the original checkpoint is preserved), it irreversibly replaces the current working state, making it a Write operation with high severity due to its broad impact across multiple coordinated systems.

From the tool's definition Tool name 'restore_checkpoint' and description 'Restore a checkpoint (with emergency backup)' indicate a restoration operation that modifies system state by reverting to a previous checkpoint snapshot.

Documented attack patterns abuse exactly the kind of access restore_checkpoint gives an agent:

POLICY

How to control restore_checkpoint

PolicyLayer is an MCP gateway — it sits between your AI agents and MCP Conductor, and nothing reaches the server without passing your rules. This is the rule we recommend for restore_checkpoint:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "restore_checkpoint": {
      "limits": [
        {
          "counter": "restore_checkpoint_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

restore_checkpoint 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.

Create a free account and register MCP Conductor — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More MCP Conductor tools

Write initialize_luther_rules Initialize Luther\ Write compress_context Compress conversation context using intelligent algorithms Write coordinate_checkpoint Create a coordinated checkpoint across multiple MCPs Write create_checkpoint Create a new real checkpoint of RiderProjects directory Write create_project_intelligence_cache Create comprehensive project intelligence cache to eliminate session startup overhead Write create_session_rule Create a new persistent session rule (stored in Memory MCP) Write create_unified_handoff Create a coordinated handoff package using all 5 MCPs Write invalidate_project_cache Invalidate project intelligence cache when major changes occur

All 25 MCP Conductor tools →

Write tools on other servers

M-Team MCP Server download_torrent YouTube MCP Server generate_video_title Android Forensics ADB MCP Server combine_reports 0xarchive web3_signup

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about restore_checkpoint

What does the restore_checkpoint tool do? +

Restore a checkpoint (with emergency backup). It is categorised as a Write tool in the MCP Conductor MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on restore_checkpoint? +

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

What risk level is restore_checkpoint? +

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

Can I rate-limit restore_checkpoint? +

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

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

restore_checkpoint is provided by the MCP Conductor MCP server (lutherscottgarcia/mcp-conductor). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every MCP Conductor tool call.

Start from MCP Conductor, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →