MANDATORY: Follow the complete shared lifecycle contract in ${CLAUDE_PLUGIN_ROOT}/skills/shared/run-lifecycle.md with declared skill set-up-forked-open-source-repo.

Set Up Forked Open Source Repo

MANDATORY: READ ENTIRE FILE before composing user-facing prose: ${CLAUDE_PLUGIN_ROOT}/skills/shared/readability-style.md.

Configure the current git checkout for contributing through a personal fork: origin becomes the fork, upstream becomes the canonical repository, upstream pushes are disabled, and main tracks origin/main.

This skill is deliberately single-clone: one run may operate per clone at a time, while separate clones can run independently. Run it from the checkout you want to configure. It refuses dirty linked worktrees in the same clone, in-progress git operations in any linked worktree, non-main checkouts, local main ahead of origin/main, diverged local/remote main, ambiguous remote layouts, and non-parseable or mixed-host remotes.

Prerequisites