create_reddit_ads_post

SERVERHermoso SOURCEhttps://app.hermoso.ai/mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade D, identity unverified Pull the record →

This record as markdown: /tools/hermoso/create-reddit-ads-post.md

WHAT IT DOES

What create_reddit_ads_post does on Hermoso

AI agents use create_reddit_ads_post 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.

RISK

Why create_reddit_ads_post is rated Medium

An AI agent can call create_reddit_ads_post 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.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_reddit_ads_post 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_post, this is the rule to start with:

create_reddit_ads_post Rate-limited

create_reddit_ads_post 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "create_reddit_ads_post": {
      "limits": [
        {
          "counter": "create_reddit_ads_post_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Hermoso, apply this rule, and every create_reddit_ads_post call is checked against it from then on.

FAQ

Questions about create_reddit_ads_post

What does the create_reddit_ads_post tool do? +

Create the CREATIVE for a Reddit ad. This is the step people skip: a Reddit ad has no creative of its own — it points at a post — so a campaign and ad group with no post behind them can never serve. Types are TEXT (headline + body), IMAGE, VIDEO and CAROUSEL (up to 6 images), and an IMAGE, VIDEO or CAROUSEL post can carry body text too. For image/video/carousel pass media[] with a PUBLIC mediaUrl; Reddit fetches and validates it itself (minimum 140×140), and a video also needs a thumbnailUrl. The destination for a click rides on the media entry’s destinationUrl, NOT on the ad. Reddit’s call-to-action values are human-readable strings with spaces and capitals —. 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.

How do I enforce a policy on create_reddit_ads_post? +

Register the Hermoso MCP server in PolicyLayer and add a rule for create_reddit_ads_post: 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.

What risk level is create_reddit_ads_post? +

create_reddit_ads_post is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit create_reddit_ads_post? +

Yes. Add a rate_limit block to the create_reddit_ads_post 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.

How do I block create_reddit_ads_post completely? +

Set action: deny in the PolicyLayer policy for create_reddit_ads_post. 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.

What MCP server provides create_reddit_ads_post? +

create_reddit_ads_post 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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