# Gus Dantas · retail media measurement MCP server

Agent View of the PolicyLayer registry record for Gus Dantas · retail media measurement: identity, probed posture, risk grade, and all 4 tools classified. HTML page: https://policylayer.com/tools/com-ghostavo-retail-media-measurement

## Facts

- Server id: `https://mcp.ghostavo.com/mcp`
- Homepage: https://github.com/https://mcp.ghostavo.com/mcp
- Registry record: grade C, identity unverified
- Lifecycle: active
- Auth posture: open
- CORS policy: *
- Rate-limited: no
- Tools: 4 (2 with introspected schema)
- Tool categories present: Read, Write
- Context-window cost: 407 tokens per request — https://policylayer.com/token-cost/com-ghostavo-retail-media-measurement
- Tags: com ghostavo retail media measurement
- Record last modified: 2026-08-18T20:20:27.889Z

## Tools (4)

| Tool | Category | Risk | Record |
| --- | --- | --- | --- |
| `ask_gus` | Read | Low | https://policylayer.com/tools/com-ghostavo-retail-media-measurement/ask-gus.md |
| `gus_profile` | Read | Low | https://policylayer.com/tools/com-ghostavo-retail-media-measurement/gus-profile.md |
| `retail_media_primer` | Read | Low | https://policylayer.com/tools/com-ghostavo-retail-media-measurement/retail-media-primer.md |
| `leave_a_note` | Write | Medium | https://policylayer.com/tools/com-ghostavo-retail-media-measurement/leave-a-note.md |

## Tool descriptions

- `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 a…
- `gus_profile` — A short professional profile: where he works, what he has done, what he is doing now.
- `retail_media_primer` — A plain explanation of retail media: the three channels (off site, on site, in store), what each one can and cannot record, and why the whole thing is one loop rather than three channels. Useful even if you have no interest in Gus.
- `leave_a_note` — Send Gus a message. He reads these himself and replies to the contact detail you include. Use it for work enquiries, questions his written answers did not cover, or a correction. Ask the person before sending on their behalf, and send th…

## 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`

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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 · Recommended policies for every tool: https://policylayer.com/policies/com-ghostavo-retail-media-measurement