# update_reddit_ads_ad_group

Change an existing Reddit ad group’s name, budget, goal type, bid, schedule dates or targeting. Budget and bid are ordinary amounts in the ad account’s currency. Targeting MERGES KEY BY KEY — measured live 2026-08-05, and it is NOT a wholesale replace: a key you send replaces that whole list, a key you LEAVE OUT is kept exactly as it was, and an explicit empty array (geolocations: []) is the only way to clear one. So passing just {communities:[…]} does NOT drop an existing geo or interest filter on an ad group that holds the budget — name every key you want gone. This does NOT activate or pause anything; use set_reddit_ads_status for that. The result is read back from Reddit.

Agent View of the PolicyLayer registry record for `update_reddit_ads_ad_group`. HTML page: https://policylayer.com/tools/hermoso/update-reddit-ads-ad-group

## Facts

- Tool: `update_reddit_ads_ad_group`
- 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": "update_reddit_ads_ad_group",
    "arguments": {}
  }
}
```

## Why update_reddit_ads_ad_group is rated Medium

An AI agent can call update_reddit_ads_ad_group 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 update_reddit_ads_ad_group 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": {
    "update_reddit_ads_ad_group": {
      "limits": [
        {
          "counter": "update_reddit_ads_ad_group_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`

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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