acestep

acestep is a skill for Claude Code from Lord1Egypt/awesome-skill-forge. It costs 57 tokens per session (2,665 once invoked), scanned B, a copy of acestep, MIT.

A music-generation tool that uses the ACE-Step API to create music, generate lyrics, continue audio, edit songs, and repaint parts of recordings.

In plain words
What is it for?
Use it to create songs, generate lyrics, remix or continue audio, and alter sections of recordings. It can save generated results through the provided script.
Why use it?
It provides one workflow for turning descriptions or lyrics into music and for modifying existing audio. This reduces the need to handle the music API directly.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: names the AskUserQuestion tool; mentions Codex.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is ./scripts/acestep.sh health.

Good fit Use it to create songs, generate lyrics, remix or continue audio, and alter sections of recordings. It can save generated results through the provided script.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/Lord1Egypt/awesome-skill-forge
agentmods
npx agentmods add skills/lord1egypt/awesome-skill-forge/acestep

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for acestep

README.md
[![agentmods](https://agentmods.dev/badge/skills/lord1egypt/awesome-skill-forge/acestep/github.svg)](https://agentmods.dev/skills/lord1egypt/awesome-skill-forge/acestep)
Your own site
<a href="https://agentmods.dev/skills/lord1egypt/awesome-skill-forge/acestep"><img src="https://agentmods.dev/badge/skills/lord1egypt/awesome-skill-forge/acestep/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for acestep

Your own site · 80×15
<a href="https://agentmods.dev/skills/lord1egypt/awesome-skill-forge/acestep"><img src="https://agentmods.dev/badge/skills/lord1egypt/awesome-skill-forge/acestep.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 57 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,665 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 92% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00057 $0.02665
Opus 5 $0.00028 $0.01333
Sonnet 5 $0.00011 $0.00533
Haiku 4.5 $0.00006 $0.00266

Measured 10d ago against content hash 0440bc12f508, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade B, and why

acestep scanned grade B with 2 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

- **Linux**: `sudo apt-get install jq` (Debian/Ubuntu) or `sudo dnf install jq` (Fedora)

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

The `scripts/acestep.sh` script requires: **curl** and **jq**.
Origin

This is a copy

92% identical to acestep — 544 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

community/clawhub/a/acestep/SKILL.md · 254 lines

How it starts

The opening of the file, as written. The whole thing — 254 lines — stays where its author put it; the contents beside it link to each section on GitHub.

ACE-Step Music Generation Skill

Use ACE-Step V1.5 API for music generation. Always use scripts/acestep.sh script — do NOT call API endpoints directly.

Quick Start

# 1. cd to this skill's directory
cd {project_root}/{.claude or .codex}/skills/acestep/

# 2. Check API service health
./scripts/acestep.sh health

# 3. Generate with lyrics (recommended)
./scripts/acestep.sh generate -c "pop, female vocal, piano" -l "[Verse] Your lyrics here..." --duration 120 --language zh

# 4. Output saved to: {project_root}/acestep_output/

Workflow

For user requests requiring vocals:

  1. Use the acestep-songwriting skill for lyrics writing, caption creation, duration/BPM/key selection
  2. Write complete, well-structured lyrics yourself based on the songwriting guide
  3. Generate using Caption mode with -c and -l parameters

Only use Simple/Random mode (-d or random) for quick inspiration or instrumental exploration.

If the user needs a simple music video, use the acestep-simplemv skill to render one with waveform visualization and synced lyrics.

MV Production Requirements: Making a simple MV requires three additional skills to be installed:

  • acestep-songwriting — for writing lyrics and planning song structure
  • acestep-lyrics-transcription — for transcribing audio to timestamped lyrics (LRC)
  • acestep-simplemv — for rendering the final music video

Script Commands

CRITICAL - Complete Lyrics Input: When providing lyrics via the -l parameter, you MUST pass ALL lyrics content WITHOUT any omission:

  • If user provides lyrics, pass the ENTIRE text they give you
  • If you generate lyrics yourself, pass the COMPLETE lyrics you created
  • NEVER truncate, shorten, or pass only partial lyrics
  • Missing lyrics will result in incomplete or incoherent songs

Music Parameters: Use the acestep-songwriting skill for guidance on duration, BPM, key scale, and time signature.

# need to cd to this skill's directory first
cd {project_root}/{.claude or .codex}/skills/acestep/

# Caption mode - RECOMMENDED: Write lyrics first, then generate
./scripts/acestep.sh generate -c "Electronic pop, energetic synths" -l "[Verse] Your complete lyrics
[Chorus] Full chorus here..." --duration 120 --bpm 128

# Instrumental only
./scripts/acestep.sh generate "Jazz with saxophone"

# Quick exploration (Simple/Random mode)
./scripts/acestep.sh generate -d "A cheerful song about spring"
./scripts/acestep.sh random

# Options
./scripts/acestep.sh generate "Rock" --duration 60 --batch 2
./scripts/acestep.sh generate "EDM" --no-thinking    # Faster

# Other commands
./scripts/acestep.sh status <job_id>
./scripts/acestep.sh health
./scripts/acestep.sh models

Read the full file on GitHub · 254 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 10d ago First seen · 254 lines · 57 tokens per session scan B 0440bc12f508

Subscribe to this mod's changes

acestep is a skill published in the GitHub repository Lord1Egypt/awesome-skill-forge (2 stars, last pushed 3mo ago), licensed MIT. It adds 57 tokens to every session and 2,665 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it B with 2 findings (asks for root, makes network calls). It is 92% identical to acestep, differing in 544 lines, and is treated as a copy.

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