sandboxer – OpenClaw Skill

---

name: sandboxer description: "Manage Claude Code terminal sessions via Sandboxer web dashboard. Use when: (1) listing running Claude Code sessions, (2) checking what a Claude session is doing, (3) sending commands to a Claude session, (4) creating or killing sessions, (5) user mentions 'sandboxer' or 'session'." metadata: { "openclaw": { "emoji": "🖥️", "requires": { "bins": ["curl", "tmux", "jq"] } } }

Sandboxer

Manage Claude Code sessions running in tmux via HTTP API.

All commands run locally - no SSH needed.

Health Check (Run First!)

Before using any commands, verify Sandboxer is running:

curl -sf http://localhost:8081/api/sessions >/dev/null && echo "✓ Sandboxer is running" || echo "✗ Sandboxer not reachable"

If Sandboxer is not reachable:

✗ Sandboxer is not installed or not running on this machine.

To install Sandboxer, run:
  claude --dangerously-skip-permissions "clone github.com/chriopter/sandboxer to /home/sandboxer/git/sandboxer, read README.md for install instructions, then install sandboxer"

To start if already installed:
  sudo systemctl start sandboxer

See: https://github.com/chriopter/sandboxer

List Sessions

curl -s http://localhost:8081/api/sessions | jq

Filter by project:

curl -s http://localhost:8081/api/sessions | jq '.[] | select(.name | contains("PROJECT"))'

Read Session Output

See what Claude is doing:

tmux capture-pane -t "SESSION_NAME" -p | tail -80

Send Command to Session

Forward user requests to Claude Code:

tmux send-keys -t "SESSION_NAME" "implement feature X" Enter

Then wait 10-30s and read output to check result.

Create Session

curl -s "http://localhost:8081/create?type=claude&dir=/path/to/project"

Types: claude, bash, lazygit

Kill Session

curl -s "http://localhost:8081/kill?session=SESSION_NAME"

Workflow: Forward Tasks to Claude

When user says "do X" or "implement Y":

1. Find the right session: curl -s http://localhost:8081/api/sessions | jq
2. Send command: tmux send-keys -t "SESSION" "do X" Enter
3. Wait 10-30 seconds
4. Read result: tmux capture-pane -t "SESSION" -p | tail -80
5. Report back to user

Web Dashboard

URL: https://YOUR_SERVER:8080

Shows live terminal previews. May require password.

Installation

See GitHub README for setup instructions.