shortcake 1.2.3

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Turn big changes into pull requests reviewers can follow.

Shortcake helps you build a feature as a stack of small, review-sized branches, see the order at a glance, and submit matching GitHub PRs from your terminal.

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The whole stack is reconstructed from your commits. Each branch records its parent in a git trailer — no state files, no metadata branch, no daemon. Rebase, push, checkout, and branch with the tools you already use; the stack travels with your Git history.

feat: add login form

Shortcake-Parent: main

That one marker is why Shortcake can recover the order after rebases, checkouts, and pushes without a separate state file to keep in sync.

Why stacked PRs?

Big pull requests are hard to review. Stacked branches let you send a large change in the order it should be read — foundation first, follow-ups after — so each PR stays focused on one idea instead of the whole feature. Shortcake keeps that order visible and submits PRs with bases that match it, so reviewers always know what builds on what.

Install

uv tool install shortcake

Requires Python 3.14+. The install exposes both shortcake and the short alias sc.

Other ways to install

# pipx
pipx install shortcake

Quick start

Build a two-branch stack, look at it, and open the PRs — start to finish.

1. Create a branch from your staged changes. sc create commits what's staged and records main as the parent.

$ echo "def login(): ..." > login.py && git add login.py
$ sc create -m "Add login form"
Created branch 'add-login-form' from 'main'

2. Stack the next change on top. Run create again — the new branch's parent is the one you're on.

$ echo "def reset(): ..." > reset.py && git add reset.py
$ sc create -m "Add password reset"
Created branch 'add-password-reset' from 'add-login-form'

3. See the stack with sc ls:

$ sc ls
◉ add-password-reset (current)
│
◯ add-login-form
│
◯ main

4. Submit the stack to GitHub. sc submit pushes every branch and opens (or updates) a PR for each, with bases that match the stack. Add --draft/-d for drafts, or --dry-run/-n to preview first.

$ sc submit
Pushing 'add-login-form'...
  Creating PR for 'add-login-form'...
  Created PR #1: https://github.com/you/repo/pull/1
Pushing 'add-password-reset'...
  Creating PR for 'add-password-reset'...
  Created PR #2: https://github.com/you/repo/pull/2

Created 2 PR(s)

Each PR description gets a stack map showing the order and which PR you're looking at, and sc ls now shows the PR numbers:

$ sc ls
◉ add-password-reset #2 (current)
│
◯ add-login-form #1
│
◯ main

sc submit needs a GitHub token (from gh auth login, or GH_TOKEN/GITHUB_TOKEN) and an origin remote pointing at GitHub. It restacks branches before pushing and uses --force-with-lease so it won't clobber others' work.

That's the core loop: create → ls → submit. The rest of the CLI is there when you need to move, split, restack, or repair branches.

How it works

The stack is rebuilt entirely from the Shortcake-Parent trailer in each branch's first commit. ls/log walk parent → children, and restack rebases descendants whenever a parent moves. Because the relationship lives in the commit, the stack survives rebasing, pushing, and branching with any Git tooling — there's nothing else to keep in sync.

Already started a branch the normal way? sc adopt brings an existing branch into a stack instead of recreating it.

Commands

Build the stack	create (new tracked branch; --before/--after to insert) · adopt (track an existing branch)
Edit the stack	modify · fold · reorder · move
Restack	restack (rebase children when a parent changes) · continue · abort (resume/abandon after a conflict)
Navigate & inspect	up · down · top · bottom · checkout (alias co) · ls · log
GitHub & remote	submit (open/update stacked PRs) · sync · pull · review
Web UI	ui

Run sc <command> --help for the options on any command.

Review the stack in your browser

sc ui

Opens a local, GitHub-style view of every branch diff — file tree, inline comments, and AI review — reading straight from your repo. Nothing leaves your machine.

You can also review a branch from the terminal with sc review, which runs the change through an installed AI CLI (claude or codex).

Development

# Tests + coverage (must stay at 100%)
uv run pytest tests/ -v --cov=src/shortcake --cov-report=term
uv run coverage report --fail-under=100

# CLI end-to-end tests (executable markdown docs in e2e/docs/)
uv run python e2e/markdown_runner.py

# Browser e2e for the web UI (one-time: uv run playwright install --with-deps chromium)
uv run pytest tests/e2e/ -v

# Lint, format, and type-check
uv run --group linting ruff check src/ tests/
uv run --group linting ruff format --check src/ tests/
uv run --group typing ty check src/

See CLAUDE.md for the project layout and conventions.

License

MIT © Patrick Arminio. If Shortcake is useful to you, consider sponsoring. 🍰