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Prerequisites

• Require GitHub CLI gh. Check gh --version. If missing, ask the user to install gh and stop.
• Require authenticated gh session. Run gh auth status. If not authenticated, ask the user to run gh auth login (and re-run gh auth status) before continuing.

Naming conventions

• Branch: codex/{description} when starting from main/master/default.
• Commit: {description} (terse).
• PR title: [codex] {description} summarizing the full diff.

Workflow

• If on main/master/default, create a branch: git checkout -b "codex/{description}"
• Otherwise stay on the current branch.
• Confirm status, then stage everything: git status -sb then git add -A.
• Commit tersely with the description: git commit -m "{description}"
• Run checks if not already. If checks fail due to missing deps/tools, install dependencies and rerun once.
• Push with tracking: git push -u origin $(git branch --show-current)
• If git push fails due to workflow auth errors, pull from master and retry the push.
• Open a PR and edit title/body to reflect the description and the deltas: GH_PROMPT_DISABLED=1 GIT_TERMINAL_PROMPT=0 gh pr create --draft --fill --head $(git branch --show-current)
• Write the PR description to a temp file with real newlines (e.g. pr-body.md ... EOF) and run pr-body.md to avoid \n-escaped markdown.
• PR description (markdown) must be detailed prose covering the issue, the cause and effect on users, the root cause, the fix, and any tests or checks used to validate.