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Audacity CLI

Free

Manage audio projects directly from the command line.

by hkuds46.9k stars on hkuds/cli-anything
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Updated Aug 3, 2026
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Free · Opens the source repo

What Audacity CLI does

The Audacity CLI provides a stateful command-line interface for audio editing, designed to streamline workflows for users familiar with command-line tools. This tool follows patterns established by other popular command-line interfaces, such as GIMP and Blender, making it intuitive for those accustomed to such environments. With this CLI, users can create, manage, and manipulate audio projects without needing to open the Audacity GUI, which can be particularly useful for automation or batch processing tasks.

Installation is straightforward, requiring Python 3.10 or higher and an existing Audacity installation. Once set up, users can access a range of commands organized into groups for project, track, clip, effect, selection, label, media, export, and session management. Each command is designed to perform specific tasks, such as creating a new project, adding tracks, or applying effects, all from the terminal. The CLI also supports an interactive REPL mode, allowing users to enter commands directly and utilize features like tab completion and command history.

One of the notable features of this CLI is its ability to output results in both human-readable and machine-readable formats. This dual-output capability is particularly beneficial for developers and automation scripts, as it allows for easy integration with other tools and systems. Users can also take advantage of session management features, including undo/redo functionality and project persistence, which help maintain the state of their audio projects across multiple commands.

Overall, the Audacity CLI is a powerful tool for developers, audio engineers, and anyone looking to enhance their audio editing capabilities through command-line operations. It is particularly suited for those who prefer scripting and automation in their workflows, enabling more efficient audio project management.

When to use it

Use this CLI when you need to automate audio editing tasks or manage projects without the graphical interface.

When not to use it

This CLI may not be suitable for users who prefer a graphical interface or are unfamiliar with command-line operations.

What you can build with it

Automate Audio Editing

Use the CLI to script audio editing tasks, saving time on repetitive actions.

Interactive Audio Management

Start a REPL session to manage your audio projects interactively with command history.

Batch Process Audio Files

Integrate the CLI into your workflows to process multiple audio files in one go.

How to install Audacity CLI

View source

1. Install with the skills CLI

npx skills add hkuds/cli-anything/skills --agent claude-code

2. Or install it manually

Download the skill folder and drop it into ~/.claude/skills/ for all projects, or .claude/skills/ to scope it to one repo. Restart Claude Code so it picks up the new skill.

Anthropic's agentic coding CLI, and the reference implementation of Agent Skills. Drop a skill folder into ~/.claude/skills and Claude Code loads it automatically whenever a task matches the skill's description. Claude Code docs

Inside SKILL.md

Written by hkuds

cli-anything-audacity

A stateful command-line interface for audio editing, following the same patterns as the GIMP and Blender CLIs in this repo.

Installation

This CLI is installed as part of the cli-anything-audacity package:

pip install cli-anything-audacity

Prerequisites:

  • Python 3.10+
  • audacity must be installed on your system

Usage

Basic Commands

# Show help
cli-anything-audacity --help

# Start interactive REPL mode
cli-anything-audacity

# Create a new project
cli-anything-audacity project new -o project.json

# Run with JSON output (for agent consumption)
cli-anything-audacity --json project info -p project.json

REPL Mode

When invoked without a subcommand, the CLI enters an interactive REPL session:

cli-anything-audacity
# Enter commands interactively with tab-completion and history

Command Groups

Project

Project management commands.

CommandDescription
newCreate a new project
openOpen an existing project
saveSave the current project
infoShow project information
settingsView or update project settings
jsonPrint raw project JSON

Track

Track management commands.

CommandDescription
addAdd a new track
removeRemove a track by index
listList all tracks
setSet a track property (name, mute, solo, volume, pan)

Clip

Clip management commands.

CommandDescription
importProbe/import an audio file (show metadata)
addAdd an audio clip to a track
removeRemove a clip from a track
trimTrim a clip's start and/or end
splitSplit a clip at a given time position
moveMove a clip to a new start time
listList clips on a track

Effect Group

Effect management commands.

CommandDescription
list-availableList all available effects
infoShow details about an effect
addAdd an effect to a track
removeRemove an effect by index
setSet an effect parameter
listList effects on a track

Selection

Selection management commands.

CommandDescription
setSet selection range
allSelect all (entire project duration)
noneClear selection
infoShow current selection

Label

Label/marker management commands.

CommandDescription
addAdd a label at a time position
removeRemove a label by index
listList all labels

Media

Media file operations.

CommandDescription
probeAnalyze an audio file
checkCheck that all referenced audio files exist

Export Group

Export/render commands.

CommandDescription
presetsList export presets
preset-infoShow preset details
renderRender the project to an audio file

Session Group

Session management commands.

CommandDescription
statusShow session status
undoUndo the last operation
redoRedo the last undone operation
historyShow undo history

Examples

Create a New Project

Create a new audacity project file.

cli-anything-audacity project new -o myproject.json
# Or with JSON output for programmatic use
cli-anything-audacity --json project new -o myproject.json

Interactive REPL Session

Start an interactive session with undo/redo support.

cli-anything-audacity
# Enter commands interactively
# Use 'help' to see available commands
# Use 'undo' and 'redo' for history navigation

Export Project

Export the project to a final output format.

cli-anything-audacity --project myproject.json export render output.pdf --overwrite

State Management

The CLI maintains session state with:

  • Undo/Redo: Up to 50 levels of history
  • Project persistence: Save/load project state as JSON
  • Session tracking: Track modifications and changes

Output Formats

All commands support dual output modes:

  • Human-readable (default): Tables, colors, formatted text
  • Machine-readable (--json flag): Structured JSON for agent consumption
# Human output
cli-anything-audacity project info -p project.json

# JSON output for agents
cli-anything-audacity --json project info -p project.json

For AI Agents

When using this CLI programmatically:

  1. Always use --json flag for parseable output
  2. Check return codes - 0 for success, non-zero for errors
  3. Parse stderr for error messages on failure
  4. Use absolute paths for all file operations
  5. Verify outputs exist after export operations

More Information

  • Full documentation: See README.md in the package
  • Test coverage: See TEST.md in the package
  • Methodology: See HARNESS.md in the cli-anything-plugin

Version

1.0.0

Frequently asked questions about Audacity CLI

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