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):

• git fetch origin

• Fetch issue title: gh issue view <N> --repo langwatch/langwatch --json title --jq '.title'

• Generate slug: lowercase, replace non-alphanumeric with hyphens, collapse, trim, max 50 chars at word boundary

• Branch: issue<N>/<slug>

• Directory: .worktrees/issue<N>-<slug>

• Skip if directory already exists (report it, don't error)

• Create worktree:

• If branch exists on remote: git worktree add "$DIR" "$BRANCH"

• Otherwise: git worktree add -b "$BRANCH" "$DIR" origin/main

• 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:

And remind the user they can:

• tmux attach -t <session> to check on a session

• orchard to see all worktrees in the TUI