# preview_tag_manager_publish

WHAT WOULD HAPPEN IF YOU PUBLISHED — free, read-only, and it publishes nothing. Returns the container, the version live on the site right now and what it holds, the exact list of staged changes (added, updated, deleted) as Tag Manager itself reports them, any merge conflicts, and the one sentence to show a user before asking them to agree. Use it to answer

Agent View of the PolicyLayer registry record for `preview_tag_manager_publish`. HTML page: https://policylayer.com/tools/hermoso/preview-tag-manager-publish

## Facts

- Tool: `preview_tag_manager_publish`
- Server: Hermoso (`https://app.hermoso.ai/mcp`) — https://policylayer.com/tools/hermoso.md
- Homepage: git+https://github.com/hermoso-ai/hermoso.git
- Risk category: Write (Medium risk)
- Registry record: grade D, identity unverified
- Server auth posture: gated
- Server CORS policy: *
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Rate-limited

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

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "preview_tag_manager_publish",
    "arguments": {}
  }
}
```

## Why preview_tag_manager_publish is rated Medium

An AI agent can call preview_tag_manager_publish faster than any human can review: one bad instruction and it creates or modifies resources in Hermoso by the hundred, each call as confident as the last.

## Use case

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

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Hermoso:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "preview_tag_manager_publish": {
      "limits": [
        {
          "counter": "preview_tag_manager_publish_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Hermoso (895)

- `answer_google_business_question` — Destructive — https://policylayer.com/tools/hermoso/answer-google-business-question.md
- `apple_ads_change_history` — Destructive — https://policylayer.com/tools/hermoso/apple-ads-change-history.md
- `associate_linkedin_conversion_campaigns` — Destructive — https://policylayer.com/tools/hermoso/associate-linkedin-conversion-campaigns.md
- `cancel_openai_ads_audience_operation` — Destructive — https://policylayer.com/tools/hermoso/cancel-openai-ads-audience-operation.md
- `cancel_scheduled` — Destructive — https://policylayer.com/tools/hermoso/cancel-scheduled.md
- `cancel_stripe_subscription` — Destructive — https://policylayer.com/tools/hermoso/cancel-stripe-subscription.md
- `clear_sheet_range` — Destructive — https://policylayer.com/tools/hermoso/clear-sheet-range.md
- `create_analytics_custom_dimension` — Destructive — https://policylayer.com/tools/hermoso/create-analytics-custom-dimension.md
- `create_openai_ads_campaign` — Destructive — https://policylayer.com/tools/hermoso/create-openai-ads-campaign.md
- `delete_analytics_key_event` — Destructive — https://policylayer.com/tools/hermoso/delete-analytics-key-event.md
- `delete_apple_ads_object` — Destructive — https://policylayer.com/tools/hermoso/delete-apple-ads-object.md
- `delete_bluesky_post` — Destructive — https://policylayer.com/tools/hermoso/delete-bluesky-post.md
- `delete_brand` — Destructive — https://policylayer.com/tools/hermoso/delete-brand.md
- `delete_creator` — Destructive — https://policylayer.com/tools/hermoso/delete-creator.md
- `delete_dm_automation` — Destructive — https://policylayer.com/tools/hermoso/delete-dm-automation.md
- `delete_drive_file` — Destructive — https://policylayer.com/tools/hermoso/delete-drive-file.md
- `delete_google_ads_object` — Destructive — https://policylayer.com/tools/hermoso/delete-google-ads-object.md
- `delete_google_business_post` — Destructive — https://policylayer.com/tools/hermoso/delete-google-business-post.md
- `delete_instagram_dm_automation` — Destructive — https://policylayer.com/tools/hermoso/delete-instagram-dm-automation.md
- `delete_linkedin_ads_object` — Destructive — https://policylayer.com/tools/hermoso/delete-linkedin-ads-object.md
- `delete_linkedin_comment` — Destructive — https://policylayer.com/tools/hermoso/delete-linkedin-comment.md
- `delete_linkedin_lead_subscription` — Destructive — https://policylayer.com/tools/hermoso/delete-linkedin-lead-subscription.md
- `delete_merchant_data_source` — Destructive — https://policylayer.com/tools/hermoso/delete-merchant-data-source.md
- `delete_merchant_product` — Destructive — https://policylayer.com/tools/hermoso/delete-merchant-product.md
- `delete_messenger_marketing_campaign` — Destructive — https://policylayer.com/tools/hermoso/delete-messenger-marketing-campaign.md
- `delete_meta_audience` — Destructive — https://policylayer.com/tools/hermoso/delete-meta-audience.md
- `delete_meta_catalog` — Destructive — https://policylayer.com/tools/hermoso/delete-meta-catalog.md
- `delete_meta_object` — Destructive — https://policylayer.com/tools/hermoso/delete-meta-object.md
- `delete_microsoft_ads_object` — Destructive — https://policylayer.com/tools/hermoso/delete-microsoft-ads-object.md
- `delete_microsoft_merchant_product` — Destructive — https://policylayer.com/tools/hermoso/delete-microsoft-merchant-product.md
- …and 865 more: https://policylayer.com/tools/hermoso.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=hermoso · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/hermoso