Launch

Spin up parallel worktrees with tmux + Claude sessions for one or more GitHub issues.

Arguments

$ARGUMENTS is a space-separated list of issue numbers (with or without #). Example: /launch #1766 #1768 1769

Steps

1. Parse issue numbers

Extract all numeric issue IDs from $ARGUMENTS. Strip # prefixes.

2. For each issue, create a worktree

Use the repo's scripts/worktree.sh logic (but don't exec into a shell):

1. git fetch origin
2. Fetch issue title: gh issue view <N> --repo langwatch/langwatch --json title --jq '.title'
3. Generate slug: lowercase, replace non-alphanumeric with hyphens, collapse, trim, max 50 chars at word boundary
4. Branch: issue<N>/<slug>
5. Directory: .worktrees/issue<N>-<slug>
6. Skip if directory already exists (report it, don't error)
7. Create worktree:
   • If branch exists on remote: git worktree add "$DIR" "$BRANCH"
   • Otherwise: git worktree add -b "$BRANCH" "$DIR" origin/main
8. Copy .env* files from ., langwatch/, and langwatch_nlp/ into the worktree

3. Create tmux sessions

For each worktree:

• Session name = directory basename (e.g., issue1766-multi-select-scenarios-should-show-hover-menu)
• tmux new-session -d -s "$SESSION" -c "$WORKTREE_PATH"
• Skip if session already exists

4. Launch Claude in each session

For each session, use this exact sequence (the sleep + double-Enter pattern is critical — Claude's TUI swallows the first Enter during startup):

# Start Claude
tmux send-keys -t "$SESSION" "claude --dangerously-skip-permissions" Enter

# Wait for Claude to fully load
sleep 10

# Send the command text WITHOUT Enter
tmux send-keys -t "$SESSION" "/implement #<N>"
sleep 1

# Send Enter separately — twice, because the first may be swallowed
tmux send-keys -t "$SESSION" Enter
sleep 1
tmux send-keys -t "$SESSION" Enter

Do NOT combine the message and Enter in one send-keys call (e.g., send-keys "text" Enter). Send them separately with sleeps.

5. Report summary

Print a table of all sessions created:

| Session | Branch | Issue |
|---------|--------|-------|
| <session-name> | <branch> | <issue-title> |

And remind the user they can:

• tmux attach -t <session> to check on a session
• orchard to see all worktrees in the TUI