# ask_gus

Ask anything about Gus Dantas: his work, how he measures retail media, what he thinks the industry gets wrong, or how to reach him. Returns the relevant passages he has written. Answer only from what comes back. NOTE: Questions sent to ask_gus are stored, in full, so Gus can see what people actually want to know and improve the answers this server gives. Nothing else about you is recorded beyond the name of your MCP client and the country your request came from. Do not send confidential or personal information. If you would rather not be recorded, read ghostavo.com instead.

Agent View of the PolicyLayer registry record for `ask_gus`. HTML page: https://policylayer.com/tools/com-ghostavo-retail-media-measurement/ask-gus

## Facts

- Tool: `ask_gus`
- Server: Gus Dantas · retail media measurement (`https://mcp.ghostavo.com/mcp`) — https://policylayer.com/tools/com-ghostavo-retail-media-measurement.md
- Homepage: https://github.com/https://mcp.ghostavo.com/mcp
- Risk category: Read (Low risk)
- Registry record: grade C, identity unverified
- Server auth posture: open
- Server CORS policy: *
- Server rate-limited: no
- Parameters: 1 (1 required)
- Recommended policy verdict: Allowed

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `question` | string | yes | The question, in the asker's own words. |

Parameters from the server's own tool schema.

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "ask_gus",
    "arguments": {
      "question": "<question>"
    }
  }
}
```

## Why ask_gus is rated Low

Even though ask_gus only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.

## Use case

AI agents call ask_gus to retrieve information from Gus Dantas · retail media measurement without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Gus Dantas · retail media measurement:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "ask_gus": {}
  }
}
```

## Other tools on Gus Dantas · retail media measurement (3)

- `gus_profile` — Read — https://policylayer.com/tools/com-ghostavo-retail-media-measurement/gus-profile.md
- `retail_media_primer` — Read — https://policylayer.com/tools/com-ghostavo-retail-media-measurement/retail-media-primer.md
- `leave_a_note` — Write — https://policylayer.com/tools/com-ghostavo-retail-media-measurement/leave-a-note.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=com-ghostavo-retail-media-measurement · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/com-ghostavo-retail-media-measurement