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Presets are Docker images with tools preinstalled for coding agent workflows.

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Available presets

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coder (default)

  • Image: amika/coder:latest
  • Base: Ubuntu 24.04
  • Tools: Git, curl, zsh, build essentials, Python, Node.js 22, pnpm, TypeScript, tsx
  • Agent CLIs: Claude Code, Codex, OpenCode

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claude

  • Image: amika/claude:latest
  • Base: Ubuntu 24.04
  • Tools: Git, curl, zsh, build essentials, Python, Node.js 22, pnpm, TypeScript, tsx
  • Agent CLIs: Claude Code

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Use a preset

# Explicit preset
amika sandbox create --preset coder
amika sandbox create --preset claude

# Default behavior (coder)
amika sandbox create

# Use preset in materialize
amika materialize --preset claude --cmd "claude --help" --destdir /tmp/out
--preset and --image are mutually exclusive.

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Auto-build behavior

Preset images build automatically the first time you use them. If you want to force a rebuild: 
docker rmi amika/coder:latest
The next command that uses coder rebuilds the image.

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Setup scripts

Both presets run /opt/setup.sh before the main command. Use --setup-script to inject your setup logic when creating a sandbox: 
amika sandbox create --setup-script ./install-deps.sh
See Sandbox configuration for details.

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Custom image prefix

Use AMIKA_PRESET_IMAGE_PREFIX to change naming for generated preset images. 
export AMIKA_PRESET_IMAGE_PREFIX=myregistry/amika
This changes amika/coder:latest to myregistry/amika-coder:latest.

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Agent credential auto-mounting

When you create a sandbox or run materialize, Amika auto-discovers and mounts supported credential files as rwcopy snapshots. This gives agents credentials inside the container without modifying host source files.