claudebox

A runtime harness for Claude Code — the agentic coding CLI from Anthropic — running in a fully isolated Docker container with every dev tool pre-installed, passwordless sudo, docker-in-docker support, and --permission-mode bypassPermissions enabled by default.

v2.0.0 — rebased on psyb0t/aicodebox. claudebox is now a thin child image of the shared aicodebox base (same pattern as psyb0t/pibox). Every mode surface (API / Telegram / Cron / MCP) is inherited from the base and stays in lockstep with future base fixes. See CHANGELOG.md for the full migration guide (endpoint shape changes, env-var namespace, path renames — all mitigated by aliases + symlinks so existing configs keep working).

Runtime hardening (recommended docker run flags):

• --cap-drop=ALL --cap-add=NET_BIND_SERVICE — drop every Linux capability, add back only bind-below-1024 if you actually need it.
• --security-opt no-new-privileges:true — block setuid privilege escalation inside the container.
• --memory=2g --cpus=2 --pids-limit=512 — cap runtime resource use so a runaway process can't starve the host.
• --read-only --tmpfs /tmp:rw,noexec,nosuid (only if you don't use /workspace for writes — otherwise skip). The container drops from root to aicode (UID 1000) at boot via setpriv in the base entrypoint, so the process running your code is never root even without --user.

claudebox wraps Claude Code with several distinct interfaces:

• Interactive CLI — a drop-in replacement for the native claude command, with persistent containers and automatic session resumption across runs
• Programmatic CLI — non-interactive mode for scripts, CI/CD pipelines, and automation; pass a prompt, get structured output, pipe it wherever you need
• HTTP API server — a full REST API with workspace management, file operations, structured output formats, and workspace isolation for multi-tenant deployments
• OpenAI-compatible endpoint — a chat/completions adapter that lets LiteLLM, OpenAI SDKs, and any OpenAI-compatible client talk to Claude Code, complete with streaming SSE, multi-turn conversations, and multimodal image handling
• MCP server — a Model Context Protocol endpoint over streamable HTTP so other AI agents and tools (Claude Desktop, other Claude Code instances, etc.) can use Claude Code as a tool
• Telegram bot — a conversational interface with per-chat workspaces, configurable models and effort levels, file sharing, shell access, and group chat support
• Cron scheduler — yaml-defined Claude jobs running on cron schedules with per-job activity history, sub-minute resolution, and overlap protection

Beyond just running Claude Code in Docker, claudebox adds skill injection (auto-load SKILL.md files into every session), init hooks, custom script directories, structured JSON logging, and a workspace management layer that handles multi-tenant isolation with automatic busy/idle tracking.

Renamed from docker-claude-code: This project was previously called docker-claude-code with the Docker image at psyb0t/claude-code. Starting with v1.0.0, it is claudebox — the Docker image is now psyb0t/claudebox, the default binary name is claudebox, the GitHub repository is psyb0t/docker-claudebox, and the SSH key directory defaults to ~/.ssh/claudebox. If you were using the old names, update your image references, wrapper scripts, and SSH paths accordingly.

Table of Contents

• Requirements
• Quick Start
• Image Variants
• What's Inside (Full Image)
• Authentication
• Modes
• Configuration
• Gotchas
• License

Requirements

Docker installed and running. That's it.

Quick Start

One-liner install

The install script pulls the Docker image, generates SSH keys for git operations inside the container, downloads the wrapper script, and installs it as a command on your system.

# minimal image — default; Claude installs what it needs on the fly
curl -fsSL https://raw.githubusercontent.com/psyb0t/docker-claudebox/master/install.sh | bash

# full image — every dev tool pre-installed (Go, Python, kubectl, terraform, ...)
export CLAUDEBOX_FULL=1 && curl -fsSL https://raw.githubusercontent.com/psyb0t/docker-claudebox/master/install.sh | bash

# custom binary name (e.g. if you want to call it 'claude' instead of 'claudebox')
curl -fsSL https://raw.githubusercontent.com/psyb0t/docker-claudebox/master/install.sh | bash -s -- claude
# or: export CLAUDEBOX_BIN_NAME=claude && curl -fsSL .../install.sh | bash

v2 note: the variant naming flipped in v2. latest is now the minimal image (was the full image pre-v2); latest-full is the toolchain-loaded variant (was latest pre-v2). The CLAUDEBOX_MINIMAL=1 opt-in from v1 is now a no-op — you already get minimal by default. Set CLAUDEBOX_FULL=1 to opt into the toolchain image. Installing with CLAUDEBOX_FULL=1 (as above) bakes the choice into the installed wrapper, so the full variant sticks for every run — you don't need to keep the env var set afterward.

Heads up on env vars: VAR=x curl … | bash does not set VAR for the install script — bash semantics attach the var to curl only. Always export the var first (or put it on the bash side of the pipe).

Manual setup

If you prefer not to pipe scripts to bash:

# 1. create the data directory
mkdir -p ~/.claude

# 2. create SSH keys for git operations inside the container
mkdir -p "$HOME/.ssh/claudebox"
ssh-keygen -t ed25519 -C "claude@claude.ai" -f "$HOME/.ssh/claudebox/id_ed25519" -N ""
# then add the public key to GitHub/GitLab/wherever you push code

# 3. pull the image
docker pull psyb0t/claudebox:latest        # minimal (default)
# or: docker pull psyb0t/claudebox:latest-full   # toolchain-loaded variant

# 4. grab the wrapper script and install it
# see install.sh for exactly how the wrapper is set up

Image Variants

psyb0t/claudebox:latest (minimal, default)

The default v2 image. Just enough to run Claude Code on top of the aicodebox base: Ubuntu 24.04, git/curl/wget/jq, Node.js 22 LTS + npm, Python 3.12 + uv, Docker CE. Claude has passwordless sudo, so it will install whatever else it needs on the fly via apt-get, pip, npm, etc. Smaller image, faster pull, first run may take longer while Claude sorts out its own tooling.

Claude Code is installed on first run, not baked into the image. Anthropic's Claude Code CLI is proprietary and can't be redistributed, so the image ships only the pinned version (CLAUDEBOX_CLAUDE_VERSION, default set at build) and the entrypoint runs npm install -g @anthropic-ai/claude-code@<version> from npm the first time a fresh container starts. This means the published image redistributes none of Anthropic's software, and each container pulls Claude Code straight from npm. First container start needs network and takes a few extra seconds; warm restarts skip it. To pin a different version, set CLAUDEBOX_CLAUDE_VERSION at docker run.

curl -fsSL https://raw.githubusercontent.com/psyb0t/docker-claudebox/master/install.sh | bash

Use /aicodebox-init.d/*.sh hooks (see Init Hooks) to pre-install your tools on first container create so Claude doesn't burn tokens figuring out package management.

psyb0t/claudebox:latest-full (toolchain-loaded)

Everything pre-installed. Layered on top of the minimal image: Go 1.26.5, Python 3.12.13 via pyenv, Node.js dev tools, C/C++ toolchain, terraform, kubectl, helm, gh, database clients (sqlite/postgres/mysql/redis), editors (vim/nano/htop/tmux), linters + formatters (flake8/black/isort/pyright/mypy/ruff/eslint/prettier/gofumpt/…). Larger image but Claude wakes up ready.

export CLAUDEBOX_FULL=1 && curl -fsSL https://raw.githubusercontent.com/psyb0t/docker-claudebox/master/install.sh | bash

Comparison

What's Inside (Full Image)

Languages and runtimes:

• Go 1.26.5 with the full toolchain — golangci-lint, gopls, delve, staticcheck, gofumpt, gotests, impl, gomodifytags
• Python 3.12.13 via pyenv — flake8, black, isort, autoflake, pyright, mypy, vulture, pytest, poetry, pipenv, plus common libraries (requests, beautifulsoup4, lxml, pyyaml, toml)
• Node.js LTS — eslint, prettier, typescript, ts-node, yarn, pnpm, nodemon, pm2, framework CLIs (React, Vue, Angular), newman, http-server, serve, lighthouse, storybook
• C/C++ — gcc, g++, make, cmake, clang-format, valgrind, gdb, strace, ltrace

DevOps and infrastructure:

• Docker CE with Docker Compose (docker-in-docker support)
• Terraform, kubectl, helm, GitHub CLI (gh)

Database clients:

• sqlite3, postgresql-client (psql), mysql-client, redis-tools (redis-cli)

Shell and system utilities:

• jq, tree, ripgrep, bat, exa, fd-find, ag (silversearcher), htop, tmux, shellcheck, shfmt, httpie, vim, nano
• Archive tools (zip, unzip, tar), networking (net-tools, iputils-ping, dnsutils)

Container automation:

• Auto-generated CLAUDE.md in each workspace listing all available tools, so Claude knows what it has access to
• Git identity auto-configured from environment variables
• Claude Code CLI with auto-updates disabled by default (opt in with --update)
• Workspace trust dialog pre-accepted — no interactive prompts
• Custom scripts via ~/.claude/bin (added to PATH automatically)
• Init hooks via ~/.claude/init.d/*.sh (run once on first container create)
• Always-active skills via ~/.claude/.always-skills/ (injected into every invocation)
• Session continuity via --continue / --no-continue / --resume <session_id>
• Structured JSON debug logging with DEBUG=true

Authentication

You need either an Anthropic API key or an OAuth token. Set up once, use everywhere:

# interactive OAuth token setup (one-time)
claudebox setup-token

# then use the token for programmatic and headless runs
CLAUDE_CODE_OAUTH_TOKEN=sk-ant-oat01-xxx claudebox "do stuff"

# or use an API key directly
ANTHROPIC_API_KEY=sk-ant-api03-xxx claudebox "do stuff"

Modes

claudebox can run in several modes — pick the one that matches how you want to use Claude Code. Each has its own page with full setup, env vars, and examples.

Interactive Mode →

Drop-in replacement for claude. Persistent per-workspace container, automatic session resumption, plus utility commands like claudebox doctor, claudebox mcp list, claudebox stop, and claudebox clear-session.

claudebox

Programmatic Mode →

Non-interactive prompt → response for scripts, pipelines, and automation. Plain text, JSON, JSON-verbose (with full tool-call history), and stream-json output formats. Model selection, system prompt overrides, JSON-schema-constrained output, session continuation.

claudebox "explain this codebase" --output-format json --model haiku

API Mode →

Run as a long-lived HTTP server. Full REST API for prompts and file ops with workspace isolation, async runs with run-id polling, OpenAI-compatible chat/completions endpoint (streaming + multimodal + LiteLLM compatible), and an MCP endpoint over streamable HTTP so other agents can use Claude Code as a tool.

environment:
  - CLAUDEBOX_API_MODE=1
  - CLAUDEBOX_API_MODE_TOKEN=your-secret-token

Telegram Mode →

Talk to Claude from Telegram. Per-chat isolated workspaces, configurable models/effort/system-prompts per chat, allowed-chats and per-chat allowed-users gating, file/photo/video/voice ingestion, /fetch, /cancel, /status, /config, /reload commands, and [SEND_FILE: path] for Claude to send files back.

environment:
  - CLAUDEBOX_TELEGRAM_MODE=1
  - CLAUDEBOX_TELEGRAM_MODE_TOKEN=...

Cron Mode →

YAML-defined scheduled jobs. Standard 5-field cron or 6-field for sub-minute resolution. Per-job stream-json history under ~/.claude/cron/history/<workspace-slug>/<ts>-<job>/, foreground process so docker logs shows every tick, overlap protection. Set model at the root of the YAML as a default for all jobs; override per-job as needed.

environment:
  - CLAUDEBOX_CRON_MODE=1
  - CLAUDEBOX_CRON_MODE_FILE=/home/aicode/.claude/cron.yaml

Configuration

• Environment variables → — full table of CLAUDEBOX_* settings the wrapper and entrypoint understand, plus CLAUDEBOX_ENV_* (forward arbitrary vars into the container) and CLAUDEBOX_MOUNT_* (extra volume mounts).
• Customization → — extend Claude's container with custom scripts (~/.claude/bin), one-time init hooks (~/.claude/init.d), always-active skills auto-injected into every session (~/.claude/.always-skills), and MCP server definitions (project .mcp.json or global ~/.claude.json).

Gotchas

• --permission-mode bypassPermissions is the adapter's default (modern equivalent of the pre-v2 --dangerously-skip-permissions). Claude has full, unrestricted access to the container. That's the entire point. Override per-request via RunRequest.extra_args.
• SSH keys are mounted from the host for git push/pull inside the container. Do not share your container or image with untrusted parties.
• Host paths are preserved — your project at /home/you/project is mounted at the same path inside the container. This means Docker volume mounts that Claude creates from within the container resolve correctly against host paths.
• UID/GID matching — the container's claude user UID/GID is automatically adjusted to match the host directory owner on startup. File permissions should just work without manual chown.
• Docker-in-Docker — the Docker socket is mounted into the container. Claude can build images and run containers from within its container. This is by design.
• Two containers per workspace — the wrapper creates claude-<path> for interactive (TTY) sessions and claude-<path>_prog for programmatic (no TTY) sessions. Both share the same mounted volumes and data.
• Workspace busy tracking — in API mode, each workspace can only have one active Claude process at a time. Concurrent requests to the same workspace return a 409 Conflict response. Use different workspace subpaths for parallel work.
• Telegram config is required — the Telegram bot will not start without a telegram.yml config file. This is intentional to prevent accidentally exposing Claude to the public.
• Auto-updates disabled — Claude Code CLI auto-updates are disabled by default inside the container to ensure reproducible behavior. Opt in with claudebox --update when you want to update.

License

WTFPL — do what the fuck you want to.