Codespace Manager

Manage isolated code-server development environments, similar to GitHub Codespaces. Each codespace runs in its own Docker container with a full VS Code editor accessible via browser through Cloudflare Tunnel.

Pre-installed Tools

The custom Docker image includes:

• code-server (VS Code in browser)
• Bun — JS/TS runtime + package manager
• uv — Python package manager + virtual environments
• OpenCode — AI coding assistant (CLI)
• git, curl, wget, build-essential

First-Time Setup

Before creating any codespace, build the Docker image once:

bash scripts/codespace.sh setup

This builds codespace-manager:latest from assets/Dockerfile.txt. Only needed once per host.

Commands

Script location: scripts/codespace.sh (relative to this skill's directory)

# One-time image build
codespace setup

# Create codespace (optionally clone a repo and/or init OpenCode config)
codespace create \x3Cname>
codespace create \x3Cname> --git \x3Crepo-url>
codespace create \x3Cname> --opencode
codespace create \x3Cname> --git \x3Crepo-url> --opencode

# Lifecycle
codespace start \x3Cname>       # Start and get Cloudflare Tunnel URL
codespace stop \x3Cname>        # Stop container and tunnel
codespace restart \x3Cname>     # Stop then start (new URL)
codespace delete \x3Cname>      # Remove container + data (irreversible!)

# Info
codespace list               # List all codespaces with status
codespace status \x3Cname>      # Detailed status of one codespace
codespace logs \x3Cname>        # View container logs
codespace url \x3Cname>         # Regenerate tunnel URL

# Config
codespace password \x3Cpass>    # Set default password for new codespaces

Password Management

• Default password: codespace
• Set a custom default: codespace password \x3Cyour-password>
• Override per-session via environment: CODESPACE_PASSWORD=mypass codespace create foo
• Each codespace saves its password at creation time

Natural Language → Command Mapping

Architecture

• Each codespace = isolated Docker container (codespace-manager:latest)
• Project files persist at ~/codespaces/\x3Cname>/project on the host
• Exposed via Cloudflare Quick Tunnel (free, auto HTTPS, temporary URL)
• Each codespace gets a deterministic port (9000-9999, based on name hash)

Important Notes

1. Run codespace setup before first use — it builds the Docker image
2. Quick Tunnel URLs are temporary — they change on restart
3. codespace delete is irreversible — confirm with user before executing
4. Container data (outside /home/coder/project) does not persist across delete/recreate
5. Requires: Docker, cloudflared, jq installed on the host

OpenCode Config

When --opencode is used, a opencode.json is created in the project root with:

{
  "$schema": "https://opencode.ai/config.json",
  "model": "anthropic/claude-sonnet-4-5",
  "autoupdate": true
}

Users can edit this file in code-server to change the model or add provider keys.