Agent skill
sandboxer
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'.
Install this agent skill to your Project
npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/other/sandboxer
Metadata
Additional technical details for this skill
- openclaw
-
{ "emoji": "\ud83d\udda5\ufe0f", "requires": { "bins": [ "curl", "tmux", "jq" ] } }
SKILL.md
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":
- Find the right session:
curl -s http://localhost:8081/api/sessions | jq - Send command:
tmux send-keys -t "SESSION" "do X" Enter - Wait 10-30 seconds
- Read result:
tmux capture-pane -t "SESSION" -p | tail -80 - 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.
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