archive_query · Dune MCP: Risk & Policy

WHAT IT DOES

What archive_query does on Dune

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

WHY IT NEEDS A POLICY

Why archive_query needs a policy

Archiving is a reversible action—the query still exists and can theoretically be restored or unarchived. This distinguishes it from Destructive (which would be permanent deletion like delete_query or clear_table). It modifies query properties/status (Write category).

From the tool's definition The tool archives a query by changing its state to 'uneditable and unexecutable', which is a reversible modification of query metadata/status rather than deletion.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

archive_query Rate-limited

archive_query 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": {
    "archive_query": {
      "limits": [
        {
          "counter": "archive_query_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 Dune, so you can run agents against it safely.

FAQ

Questions about archive_query

What does the archive_query tool do? +

Archive a query, making it uneditable and unexecutable. It is categorised as a Write tool in the Dune MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on archive_query? +

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

What risk level is archive_query? +

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

Can I rate-limit archive_query? +

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

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

archive_query is provided by the Dune MCP server (mwamedacen/dune-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.