ingest.search.backfill · X Archive Daemon MCP: Risk & Policy

WHAT IT DOES

What ingest.search.backfill does on X Archive Daemon

AI agents use ingest.search.backfill to create or update resources in X Archive Daemon — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your X Archive Daemon environment.

WHY IT NEEDS A POLICY

Why ingest.search.backfill needs a policy

This tool retrieves posts from X via a search query and writes them into the local SQLite database. The primary side effect is creating/inserting new records into the archive, making it a Write operation. It is not Destructive (no deletion), not Financial, and not Execute (no arbitrary code execution).

From the tool's definition Fetches posts matching an X search query and stores them in the local archive

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

ingest.search.backfill Rate-limited

ingest.search.backfill 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": {
    "ingest.search.backfill": {
      "limits": [
        {
          "counter": "ingest.search.backfill_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 X Archive Daemon, so you can run agents against it safely.

FAQ

Questions about ingest.search.backfill

What does the ingest.search.backfill tool do? +

Fetches posts matching an X search query and stores them in the local archive. It is categorised as a Write tool in the X Archive Daemon MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on ingest.search.backfill? +

Register the X Archive Daemon MCP server in PolicyLayer and add a rule for ingest.search.backfill: 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 X Archive Daemon. Nothing to install.

What risk level is ingest.search.backfill? +

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

Can I rate-limit ingest.search.backfill? +

Yes. Add a rate_limit block to the ingest.search.backfill 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 ingest.search.backfill completely? +

Set action: deny in the PolicyLayer policy for ingest.search.backfill. 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 ingest.search.backfill? +

ingest.search.backfill is provided by the X Archive Daemon MCP server (menesekinci/x-archive-daemon). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.