# vast_list_media

List all VAST media (linear and non-linear)

Agent View of the PolicyLayer registry record for `vast_list_media`. HTML page: https://policylayer.com/tools/adbutler/vast-list-media

## Facts

- Tool: `vast_list_media`
- Server: AdButler (`adbutler/mcp-server`) — https://policylayer.com/tools/adbutler.md
- Homepage: https://github.com/adbutler/mcp-server
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 2
- Recommended policy verdict: Allowed

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `limit` | number | no | Max results to return (default 100, max 100) |
| `offset` | number | no | Pagination offset |

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": "vast_list_media",
    "arguments": {}
  }
}
```

## Why vast_list_media is rated Low

This tool performs a query operation to retrieve and display VAST media information. It has no side effects, does not modify data, does not execute arbitrary code, and does not involve financial transactions. The 'list' verb confirms it is a read-only operation. Severity is low because listing media poses minimal risk even if misused by an AI agent.

From the tool's own definition: "Tool name 'vast_list_media' and description 'List all VAST media (linear and non-linear)' both indicate a retrieval operation with no modification or deletion of data."

## Use case

AI agents call vast_list_media to retrieve information from AdButler 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 AdButler:

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

## Other tools on AdButler (621)

- `archive_advertiser` — Destructive — https://policylayer.com/tools/adbutler/archive-advertiser.md
- `archive_channel` — Destructive — https://policylayer.com/tools/adbutler/archive-channel.md
- `archive_contract` — Destructive — https://policylayer.com/tools/adbutler/archive-contract.md
- `archive_email_zone` — Destructive — https://policylayer.com/tools/adbutler/archive-email-zone.md
- `archive_publisher` — Destructive — https://policylayer.com/tools/adbutler/archive-publisher.md
- `bulk_upload_remove_data_list` — Destructive — https://policylayer.com/tools/adbutler/bulk-upload-remove-data-list.md
- `bulk_upload_replace_user_db` — Destructive — https://policylayer.com/tools/adbutler/bulk-upload-replace-user-db.md
- `campaign_bulk_delete_catalog_ad_items` — Destructive — https://policylayer.com/tools/adbutler/campaign-bulk-delete-catalog-ad-items.md
- `cancel_signature_request` — Destructive — https://policylayer.com/tools/adbutler/cancel-signature-request.md
- `delete_advertiser` — Destructive — https://policylayer.com/tools/adbutler/delete-advertiser.md
- `delete_archived_campaign` — Destructive — https://policylayer.com/tools/adbutler/delete-archived-campaign.md
- `delete_archived_channel` — Destructive — https://policylayer.com/tools/adbutler/delete-archived-channel.md
- `delete_archived_contract` — Destructive — https://policylayer.com/tools/adbutler/delete-archived-contract.md
- `delete_audience` — Destructive — https://policylayer.com/tools/adbutler/delete-audience.md
- `delete_audio_creative` — Destructive — https://policylayer.com/tools/adbutler/delete-audio-creative.md
- `delete_beacon_signing_key` — Destructive — https://policylayer.com/tools/adbutler/delete-beacon-signing-key.md
- `delete_bidder` — Destructive — https://policylayer.com/tools/adbutler/delete-bidder.md
- `delete_campaign` — Destructive — https://policylayer.com/tools/adbutler/delete-campaign.md
- `delete_campaign_assignment` — Destructive — https://policylayer.com/tools/adbutler/delete-campaign-assignment.md
- `delete_catalog_ad_item` — Destructive — https://policylayer.com/tools/adbutler/delete-catalog-ad-item.md
- `delete_catalog_zone` — Destructive — https://policylayer.com/tools/adbutler/delete-catalog-zone.md
- `delete_channel` — Destructive — https://policylayer.com/tools/adbutler/delete-channel.md
- `delete_channel_zone_assignment` — Destructive — https://policylayer.com/tools/adbutler/delete-channel-zone-assignment.md
- `delete_contact` — Destructive — https://policylayer.com/tools/adbutler/delete-contact.md
- `delete_contract` — Destructive — https://policylayer.com/tools/adbutler/delete-contract.md
- `delete_contract_document` — Destructive — https://policylayer.com/tools/adbutler/delete-contract-document.md
- `delete_contract_payment` — Destructive — https://policylayer.com/tools/adbutler/delete-contract-payment.md
- `delete_contract_template` — Destructive — https://policylayer.com/tools/adbutler/delete-contract-template.md
- `delete_creative` — Destructive — https://policylayer.com/tools/adbutler/delete-creative.md
- `delete_custom_html_ad_item` — Destructive — https://policylayer.com/tools/adbutler/delete-custom-html-ad-item.md
- …and 591 more: https://policylayer.com/tools/adbutler.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=adbutler · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/adbutler