create_reddit_ads_ad_group
Create an ad group under an existing Reddit campaign — this is the tier that holds the budget, the bid and ALL the targeting. ALWAYS created PAUSED; it spends nothing until set_reddit_ads_status(confirm:true). Reddit requires more here than most platforms and refuses the create without it: a bidT...
This record as markdown: /tools/hermoso/create-reddit-ads-ad-group.md
What create_reddit_ads_ad_group does on Hermoso
AI agents use create_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.
Why create_reddit_ads_ad_group is rated Medium
An AI agent can call create_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.
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
The rule that runs create_reddit_ads_ad_group safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Hermoso, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For create_reddit_ads_ad_group, this is the rule to start with:
create_reddit_ads_ad_group stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Hermoso, apply this rule, and every create_reddit_ads_ad_group call is checked against it from then on.
Questions about create_reddit_ads_ad_group
Create an ad group under an existing Reddit campaign — this is the tier that holds the budget, the bid and ALL the targeting. ALWAYS created PAUSED; it spends nothing until set_reddit_ads_status(confirm:true). Reddit requires more here than most platforms and refuses the create without it: a bidType, a bidStrategy, a startTime, a budget with its goalType, a bidAmount whenever the bid type is a paid rate, and a conversion pixel (resolved automatically when the ad account has exactly one). THE BID TYPE MUST FIT THE CAMPAIGN’S OBJECTIVE — a CLICKS campaign takes CPC and refuses CPM, a SALES campaign (Reddit\u2019s new name for conversions) asked for CPM; Reddit’s error says which. Money is ordinary amounts in the ad account’s currency (micro-currency is handled for you). Resolve community names and interest ids with search_reddit_ads_targeting first, and consider reddit_ads_forecast + reddit_ads_bid_suggestion before committing. Everything is READ BACK from Reddit before you are told it exists — print the returned note verbatim. It is categorised as a Write tool in the Hermoso MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Hermoso MCP server in PolicyLayer and add a rule for create_reddit_ads_ad_group: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Hermoso. Nothing to install.
create_reddit_ads_ad_group is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the create_reddit_ads_ad_group rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for create_reddit_ads_ad_group. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
create_reddit_ads_ad_group is provided by the Hermoso MCP server (https://app.hermoso.ai/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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