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Skill / prime-skills

Ace Step Codex Skill

Generate, inpaint, and outpaint music with ACE Step on RunComfy via the `runcomfy` CLI. ACE Step is StepFun-AI's open-weights music foundation model —…

Docs reviewedChecked 2026-09-21Runtime not tested

What it adds

Generate, inpaint, and outpaint music with ACE Step on RunComfy via the `runcomfy` CLI. ACE Step is StepFun-AI's open-weights music foundation model —…

developer workflow

Get set up

  1. Run the install command below and pick Codex when the CLI asks which agent to install for.
  2. Start a new Codex thread so the skill loads.
npx skills add https://github.com/prime-skills/runcomfy-agent-skills --skill ace-step
Review before running
Read the installation source

Before you install

  • Node.js, to run the skills CLI

Compatibility & limitations

SKILL.md format, readable by Codex

Cursor: SKILL.md format; not tested in Cursor.

    This listing is based on source documentation. We have not installed or runtime-tested this asset.

    Sources & provenance

    Reviewed 2026-09-21. Source revision: main (mutable; commit not pinned).