Determining if your branch is part of a GitHub Stacked PR

🤖 This post includes some LLM-derived content 🤖 Since the availability of GitHub's Stacked PRs finally landing for repositories that use a Merge Queue, I've been "kicking the tyres" with some of my contributions to Renovate. They're working mostly well so far, but I'm finding it a bit annoying trying to remember if I'm on a branch that's part of a stack. I'd started wiring this into my zsh config, still using Grml's zsh config as a base, and found it was a bit awkward. I decided to outsource it to Claude Sonnet 5 - cause I guess that's the sort of person I am now? 😅 - and it came out with this: # in case you're working in a Git worktree git_common_dir="$(git rev-parse --git-common-dir 2>/dev/null)" || { REPLY=""; return } stack_file="$git_common_dir/gh-stack" position="$(jq -r --arg b "$(git branch --show-current)" ' .stacks[] | select(.branches[]?.branch == $b) | (.branches | map(.branch)) as $names | ($names | index($b)) as $idx | "\($idx + 1)/\($names | length)" ' "$stack_file"…