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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 /usr/local/etc/amikad/setup/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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Container directory layout

Preset images provision parallel amikad and amika directories inside the container:
  • /usr/lib/amikad and /usr/lib/amika
  • /usr/local/etc/amikad and /usr/local/etc/amika
  • /var/lib/amikad and /var/lib/amika
  • /var/log/amikad and /var/log/amika
  • /run/amikad and /run/amika
  • /tmp/amikad and /tmp/amika
Use amikad paths for Amika-managed daemon and system files. Use amika paths for user-managed Amika content. The user-supplied setup hook remains at /usr/local/etc/amikad/setup/setup.sh.

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Reserved ports

Preset images reserve container ports 60899–60999 for Amika internal services (e.g. OpenCode web on 60998, amikad daemon on 60999). See Sandbox configuration for the full allocation table.

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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 into the container. This gives agents credentials inside the sandbox without modifying host source files. See Sandbox configuration for the full list of supported files.