do you mean something like this:

"mounts": [
"source=claude-code-bashhistory-${devcontainerId},target=/commandhistory,type=volume",
"source=claude-code-config-${devcontainerId},target=/home/node/.claude,type=volume"
],
from https://github.com/anthropics/claude-code/blob/5faa082d6e4e5300485daafb94615fe133175055/.devcontainer/devcontainer.json#L43C1-L46C5

To store with the auth state, you need to make something like:

# Dockerfile

# store the real state in the volume, because Docker supports type="volume" only for directories; otherwise, you need a symlink like "host/claude.json:/home/user/.claude.json"
RUN mkdir -p /home/user/.claude \
    && ln -snf /home/user/.claude/__do_not_use_user_claude.json /home/user/.claude.json

// devcontainer.json
{
  "features": {
    "ghcr.io/devcontainers/features/node:1": {
      "version": "24.13.0"
    },
    "ghcr.io/anthropics/devcontainer-features/claude-code:1": {}
  },
  // required to make claude login work
  "runArgs": ["--sysctl", "net.ipv6.conf.all.disable_ipv6=1"],
  "mounts": [
    // volume with Claude data and state
    "source=project-claude,target=/home/user/.claude,type=volume"
  ]
}

[feature request] Mounts for Claude config #24

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