End-to-end shipping workflow: detect base branch and scope policy once, present a complete plan, then execute branch → commit → push → PR in sequence, confirming at each phase. Uses ring:committing-changes and ring:opening-pull-requests internally — their rules and anti-patterns apply in full.

⛔ HARD STOP — PRESENT PLAN BEFORE EXECUTING ANY MUTATING COMMAND

Read-only discovery commands (git fetch, git ls-remote, git status, git diff, git log) are allowed before approval — they are needed to build the plan.

MUST complete Phase 0 detection, analyze the current state, and present a complete plan to the user before running any mutating git or gh command (git checkout -b, git add, git commit, git push, gh pr create). Executing mutating commands without approval is FORBIDDEN.

Phase 0 — Detect Base Branch and Scope Policy

MUST complete both detections before analyzing changes or drafting anything. These values are resolved once and propagated to all subsequent phases.

0A — Detect Base Branch

# Probe A — GitHub API default (fallback: git remote show origin | grep 'HEAD branch' | awk '{print $NF}')
gh repo view --json defaultBranchRef --jq '.defaultBranchRef.name'

ring:shipping-changes

⛔ HARD STOP — PRESENT PLAN BEFORE EXECUTING ANY MUTATING COMMAND

Phase 0 — Detect Base Branch and Scope Policy

0A — Detect Base Branch