seal_audit_ledger · Todos MCP: Risk & Policy

WHAT IT DOES

What seal_audit_ledger does on Todos

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

WHY IT NEEDS A POLICY

Why seal_audit_ledger needs a policy

The tool writes/stores a checkpoint to an audit ledger. This is a write operation (creating a new checkpoint record) rather than destructive since it's additive. The severity is medium because tampering with or falsifying audit ledger checkpoints could undermine integrity verification and auditability of the system.

From the tool's definition Store a local audit ledger checkpoint for later integrity verification

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

seal_audit_ledger Rate-limited

seal_audit_ledger 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": {
    "seal_audit_ledger": {
      "limits": [
        {
          "counter": "seal_audit_ledger_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 Todos, so you can run agents against it safely.

FAQ

Questions about seal_audit_ledger

What does the seal_audit_ledger tool do? +

Store a local audit ledger checkpoint for later integrity verification. It is categorised as a Write tool in the Todos MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on seal_audit_ledger? +

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

What risk level is seal_audit_ledger? +

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

Can I rate-limit seal_audit_ledger? +

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

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

seal_audit_ledger is provided by the Todos MCP server (@hasna/todos). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.