acestep-thumbnail SKILL.md skillA
acestep-thumbnail from exo101/sd-webui-forge-agent is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add exo101/sd-webui-forge-agent/acestep-thumbnail@git:20261001.393af73Pins git:20261001.393af73 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- exo101/sd-webui-forge-agent
- Path
webui/extensions/forge-h3-studio/ACE-Step-1.5/.claude/skills/acestep-thumbnail/SKILL.md- Versions recorded
- 1
- Latest version
- git:20261001.393af73, committed Oct 1, 2026
- Size
- 5,167 bytes
- Repository stars
- 67
- License
- none declared
Generate song cover/thumbnail images using Gemini API. Creates artistic images suitable for music video backgrounds. Use when users want to generate album art, song covers, thumbnails, or background images for MVs.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Thumbnail Generation Skill
Generate song cover/thumbnail images using Google Gemini's image generation API. Output images can be used directly as MV backgrounds with the acestep-simplemv skill.
## API Key Setup Guide
**Before generating, you MUST check whether the user's API key is configured.** Run the following command to check:
```bash
cd "{project_root}/{.claude or .codex}/skills/acestep-thumbnail/" && bash ./scripts/acestep-thumbnail.sh config --check-key
```
This command only reports whether the API key is set or empty — it does NOT print the actual key value. **NEVER read or display the user's API key content.** Do not use `config --get` on key fields or read `config.json` directly. The `config --list` command is safe — it automatically masks API keys as `***` in output.
**If the command reports the key is empty**, you MUST stop and guide the user to configure it before proceeding. Do NOT attempt generation without a valid key — it will fail.
Use `AskUserQuestion` to ask the user to provide their API key, with the following guidance:
1. Tell the user the Gemini API key is not configured and image generation cannot proceed without it.
…Read the whole file at its exact version.
How to install
mdr add exo101/sd-webui-forge-agent/acestep-thumbnail@sha256:1a92f190c416208eThe line at the top of this page pins the label git:20261001.393af73, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_bnwmffw3mmzafiik)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Oct 1, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (5167 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
exo101/sd-webui-forge-agent · 67 stars · license none declared · pushed 2026-10-12 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_bnwmffw3mmzafiik GET https://markdownregistry.com/api/v1/resolve?ref=exo101/sd-webui-forge-agent/acestep-thumbnail GET https://markdownregistry.com/api/v1/blob/1a92f190c416208e881d77cfe36acc7fed9ac8015a8c37aef33b077f3796c590
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.