save_creator

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/save-creator.md

WHAT IT DOES

What save_creator does on Hermoso

AI agents use save_creator 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 save_creator is rated Medium

An AI agent can call save_creator 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 save_creator 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 save_creator, this is the rule to start with:

save_creator Rate-limited

save_creator 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": {
    "save_creator": {
      "limits": [
        {
          "counter": "save_creator_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 save_creator call is checked against it from then on.

FAQ

Questions about save_creator

What does the save_creator tool do? +

Add a portrait to this workspace’s reusable CAST so the SAME person can star in future ads — the headless twin of the app’s + > Pick a creator > save. Pass the portrait’s public url (a generate_image render of an AI person, or a photo of a real person you have permission to use, or of yourself; never a photo just because it is public) plus a name to call them by; from then on list_creators returns them and their url can be re-passed to generate_avatar / generate_video / recast_motion. Saving is FREE and renders nothing. LIKENESS: leave. 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 save_creator? +

Register the Hermoso MCP server in PolicyLayer and add a rule for save_creator: 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 save_creator? +

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

Can I rate-limit save_creator? +

Yes. Add a rate_limit block to the save_creator 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 save_creator completely? +

Set action: deny in the PolicyLayer policy for save_creator. 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 save_creator? +

save_creator 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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