run-in-new-tab

Run in New Tab

Launch an interactive Claude Code session in a new zellij tab or pane.

Input

• INSTRUCTIONS: $ARGUMENTS -- prompt text or path to a plan file

Steps

1. Determine tab name and prompt

If $ARGUMENTS is a file path (ends with .md), the prompt should be:

Execute the plan from <plan-file-path>. Use superpowers:executing-plans.

Otherwise use $ARGUMENTS directly as the prompt.

Generate a short tab name (1-2 words) from the content. Fallback: claude-<HH:MM>.

2. Write bash launch script

SCRIPT=$(mktemp /tmp/claude-tab-XXXXXX.sh)
cat > "$SCRIPT" << 'SCRIPT_EOF'
#!/bin/bash
cd '<PROJECT_DIR>'
PROMPT='<escaped prompt -- single quotes escaped as '"'"'>'
clear
echo "Launching claude with prompt: $PROMPT"
echo ""
exec claude --dangerously-skip-permissions "$PROMPT"
SCRIPT_EOF
chmod +x "$SCRIPT"

3. Create tab and launch

In a new tab (default):

TAB_NAME="<auto-generated>"

timeout 5 zellij action new-tab --name "$TAB_NAME" && \
sleep 0.3 && \
timeout 5 zellij action write-chars "bash '$SCRIPT'
" || {
  _rc=$?
  echo "Command failed. Diagnosing..."
  if [ -z "$ZELLIJ" ]; then echo "Not in zellij session"
  elif [ $_rc -eq 124 ]; then echo "Timed out -- zellij may be hanging"
  elif ! command -v claude &>/dev/null; then echo "claude not found in PATH"
  else echo "Unknown error (exit code: $_rc)"
  fi
  exit $_rc
}

In a new pane:

timeout 5 zellij run -- bash "$SCRIPT" || {
  _rc=$?
  echo "Command failed. Diagnosing..."
  if [ -z "$ZELLIJ" ]; then echo "Not in zellij session"
  elif [ $_rc -eq 124 ]; then echo "Timed out -- zellij may be hanging"
  elif ! command -v claude &>/dev/null; then echo "claude not found in PATH"
  else echo "Unknown error (exit code: $_rc)"
  fi
  exit $_rc
}

Examples

/run-in-new-tab Execute plan from docs/plans/skill-audit-plan.md. Use executing-plans.
/run-in-new-tab Refactor auth module following DRY principles
/run-in-new-tab Fix all failing tests in spec-reviewer plugin