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Descripción del creador (original en inglés)
Persistent Docker/SSH sandbox for AI agents: shell exec, file ops, audit log.
Estos tres nunca se combinan en una sola puntuación: las opiniones, las mediciones y la popularidad son cosas distintas.
Todavía no escribimos un resumen sencillo para este. Abajo están los datos que leímos del registro.
Elige la app de IA que usas y copia la configuración.
Necesitas
¿Qué app usas?
Elige tu app arriba. La recordamos, así que la próxima vez el botón dirá “Instalar en …”.
Abre Claude Desktop → Settings → Developer → Edit Config y pega esto en claude_desktop_config.json
{
"mcpServers": {
"sandbox-env": {
"command": "uvx",
"args": [
"sandbox-env-mcp"
]
}
}
}Ejecuta esto en tu terminal
claude mcp add sandbox-env -- uvx sandbox-env-mcpPégalo en .cursor/mcp.json de tu proyecto, o en ~/.cursor/mcp.json
{
"mcpServers": {
"sandbox-env": {
"command": "uvx",
"args": [
"sandbox-env-mcp"
]
}
}
}Tu navegador te pide permiso para abrir la app; luego la app muestra la configuración y te pide confirmar. Los valores de las claves quedan vacíos para que los completes tú.
Pégalo en .vscode/mcp.json de tu proyecto
{
"servers": {
"sandbox-env": {
"type": "stdio",
"command": "uvx",
"args": [
"sandbox-env-mcp"
]
}
}
}Tu navegador te pide permiso para abrir la app; luego la app muestra la configuración y te pide confirmar. Los valores de las claves quedan vacíos para que los completes tú.
Este se ejecuta en tu computadora, y ChatGPT solo puede conectarse a servidores en internet. Elige otra app.
Tu elección se guarda en una cookie en este dispositivo; no necesitas cuenta.
Esta configuración se genera a partir de la ficha del creador en el registro. Si el README dice otra cosa, sigue el README.
Se ejecuta en tu computadora; la lista de herramientas aparece en tu app de IA después de instalarlo.
Revisamos información que cualquiera puede ver; no hemos leído el código. Las revisiones que no aplican no se cuentan. · Revisado el 7 nov 2026
El nombre en el registro se verificó con la cuenta de GitHub hs3434, dueña del repo
Todavía no hemos leído este repo en GitHub
Todavía no hemos leído este repo en GitHub
Este se ejecuta en tu computadora; no hay endpoint en internet
Se ejecuta en tu computadora y usa ajustes locales en su lugar
Se ejecuta en tu computadora; solo podemos leer listas de herramientas de endpoints en internet
Comparado con todos los servidores activos de esta categoría en el registro. Las estrellas solo cuentan cuando quien lo publica es dueño del repo.
Superó 1 de 1 revisiones básicas aplicables. No hemos leído el código. Antes de agregar una clave o un token, revisa qué acceso pide el servidor y usa una clave que tenga solo los permisos que necesitas.
El registro no indica ninguna clave obligatoria, aunque algunos servidores te piden iniciar sesión la primera vez que los usas.
Se ejecuta en tu computadora. Tu app de IA lo inicia cuando hace falta, y los datos no pasan por los servidores del creador (a menos que el propio servidor llame a un servicio en línea).
El repo de GitHub cambió por última vez –, y la última versión (0.3.1) llegó al registro hace 3 meses.
Las apps compatibles con MCP, como Claude Desktop, Claude Code, Cursor y VS Code. También necesitas Python (uv) en tu computadora.
En la misma categoría: GitHub, Desktop Commander, Cloudflare MCP
Servidores de la misma categoría hechos por otros creadores, ordenados por estrellas.
Cómo leer una tarjeta:★ Estrellas de GitHubiTres pilares: reseñas · revisiones · usoiActualizado = fecha en que se publicó la última versión en el registroi
Connect AI assistants to GitHub - manage repos, issues, PRs, and workflows through natural language.
MCP server for terminal commands, file operations, and process management
Cloudflare MCP servers
Copiado tal cual del repo del creador. PopNx MCP no lo ha revisado ni lo respalda. Se quitaron HTML, imágenes y scripts. Los enlaces llevan fuera de este sitio.
MCP server that gives AI agents a real working environment: persistent shells, a filesystem, and multi-machine management — backed by Docker containers or remote SSH hosts.
env tool exposes capabilities step by step. Agents call env(action="help") to see what's available..ssh, .aws, .env*) without blocking access. Pre-write syntax lint for JSON/YAML/TOML.pip install sandbox-env-mcp
sandbox-mcp
sandbox-mcp-http
On first run a default container (python:3.14-slim, named admin) starts automatically with a persistent bash shell. No other setup.
Requirements: Python 3.12+, Docker SDK, running Docker daemon. SSH mode needs openssh-client.
All tools target the default machine unless an explicit machine parameter is passed.
| Tool | What it does |
|---|---|
shell_exec | Run a command in a persistent shell. Blocks until the command finishes (wait=true, 10 s timeout) or fire-and-forget with wait=false. |
shell_read | Read buffered output from a running or finished command. |
shell_new | Create a fresh shell on a machine. Returns a shell_id. |
shell_remove | Terminate and remove a shell by shell_id. |
shell_list | List all shells with state, machine, uptime, last command. |
write_stdin | Write raw bytes to a running shell — interrupt with Ctrl-C (\x03) or feed input to interactive programs like read / Read-Host. On Windows/PowerShell, Ctrl-C is unsupported (pipe mode has no terminal driver); kill the shell instead. |
machine_list | List all registered machines with backend, status, purpose, shell count. |
default_set | Set the default machine or default shell for a machine. |
file_read | Read a file with line numbers. Supports offset + limit pagination. |
file_write | Write content atomically. Creates parent directories automatically. |
file_patch | Targeted edits with fuzzy matching. mode=replace (find-and-replace) or mode=patch (unified diff). |
file_search | Search file contents (ripgrep) or find files (glob). Sorted by modification time. |
env | Progressive-discovery portal. Start with env(action="help"). |
audit_query is exposed when the audit log is a SQLite database — it lets the agent search historical tool calls.
Every shell is in one of four states:
| State | What it means | What the agent can do |
|---|---|---|
init | Shell just created; booting up. Times out → terminated at 10 s. | Wait — shell_exec returns an error until ready. |
ready | At a prompt, accepting commands. | Send commands, read output, write stdin. |
waiting | A command is running. | Poll output with shell_read. Send Ctrl-C with write_stdin. |
terminated | Shell process exited (signal, exit, timeout, broken pipe). Last output is preserved. | Read remaining output, then shell_remove + shell_new to continue. Default shells are never auto-replaced. |
Key shell_exec parameters:
wait (default true): block until the command completes.timeout (default 10 s): on expiry returns status="waiting" with a hint to switch to wait=false + shell_read for long-running commands.max_output (default 50000 bytes): caps returned output; excess is shown as the tail (last N bytes).env(action="help") lists what's available. env(action="help", topic=" ") returns full docs for a specific action.
| Action | Params | Description |
|---|---|---|
help | topic? | List actions or get docs for one. |
status | — | Default machine, machines, shells. |
list_targets | — | Pre-defined SSH targets from config. |
machine_list | — | Registered machines. |
shell_list | machine? | Shells, optionally filtered. |
shell_new | machine?, purpose? | New shell session. |
shell_remove | shell_id | Terminate and remove. |
default_set | machine or shell_id | Set default machine or shell. |
| Action | Required params | Description |
|---|---|---|
docker_run | name, image, purpose | Create/start container. Reattaches on name collision. |
docker_ps | — | List managed containers. |
docker_images | — | List all images on daemon. |
docker_image_history | image | Layer-by-layer build history. |
docker_build | image_tag, machine | Build from a Dockerfile in /workspace. |
docker_commit | machine, image_tag | Commit container as new image. |
docker_stop | machine | Stop (state preserved). |
docker_start | machine | Start a stopped container. |
docker_remove | machine | Stop + remove container and its shells. |
docker_inspect | machine | Curated config. kind=image for images. |
docker_logs | machine | Logs with tail, since, until. |
docker_diff | machine | Filesystem changes vs image. |
docker_stats | machine | CPU/memory/network/IO snapshot. |
docker_restart | machine | Stop + start + verify. |
| Action | Required params | Description |
|---|---|---|
connect | name | Connect to a configured target. |
close | name | Disconnect and unregister. |
Available when [ssh.targets] is configured.
| Tool | Key params | Highlights |
|---|---|---|
file_read | path, offset, limit | Line-numbered. Rejects files > 50 KB with a hint. |
file_write | path, content | Atomic (temp + rename), auto-creates parent dirs, post-write verification. |
file_patch | path, old_string, new_string (replace mode) or patch (unified diff) | Fuzzy matching. Preserves BOM and line endings. |
file_search | pattern, search_type, path, file_glob, limit | Powered by ripgrep. Results sorted by modification time. |
Safety warnings are surfaced for sensitive paths (.ssh, .aws, .env*, /etc/shadow, etc.) — advisory only, agents still have full access. Writes to .json, .yaml, .yml, .toml are syntax-checked before writing (fail-closed).
Config lives at ~/.sandbox-mcp/config.toml (copy config/config.example.toml). Every field can be overridden with SANDBOX_MCP_ _ env vars.
[server]
port = 8010 auth_tokens_file = "~/.sandbox-mcp/auth_tokens"
[storage] work_home = "/var/lib/sandbox-mcp"
[docker] default_image = "python:3.14-slim" auto_network = "sandbox-mcp" # "" = none admin_machine = "admin" # "" = no /host mount host = "" # "" = from Docker environment
[ssh] connect_timeout = 10 [ssh.targets.win-build] host = "192.168.1.100" user = "builder" os_type = "windows"
[default_machine] enabled = true backend = "docker" name = "admin"
[shell] default_max_output = 50000
[files] max_file_size = 51200
Containers get bind mounts for workspace isolation:
work_home/ / → /workspace (rw)work_home/ / → /share/ (ro, shared across peers)work_home/ / / → /share/ / (rw overlay)When a container's name matches admin_machine, it also gets work_home/ → /host (rw) — a global view of all workspaces.
Server startup auto-reconciles with the Docker daemon: surviving containers are re-adopted into the registry.
Connects over SSH with ControlMaster for connection reuse. Windows targets get automatic code-page probing and encoded-command execution.
# docker-compose.yml
services: sandbox-mcp: image: ghcr.io/hs3434/sandbox-env-mcp:latest network_mode: host volumes:
HTTP mode reads bearer tokens from auth_tokens_file (hot-reload on every request). If the file is empty or missing and auto_generate_if_empty=true, a random token is printed to stderr at startup.
Every tool call is recorded: timestamp, machine, action, status, duration, and hashed parameters. Defaults to SQLite at ~/.sandbox-mcp/audit.db. Set log_path="" for JSON-line stderr output instead.