retro

## When to invoke Use when asked to "weekly retro", "what did we ship", or "engineering retrospective". Proactively suggest at the end of a work week or sprint. ## Preamble ```bash eval "$(~/.vibestack/bin/vibe-slug 2>/dev/null)" 2>/dev/null || SLUG="unknown" _LEARN_FILE="${VIBESTACK_HOME:-$HOME/.vibestack}/projects/${SLUG:-unknown}/learnings.jsonl" if [ -f "$_LEARN_FILE" ]; then _LEARN_COUNT=$(wc -l < "$_LEARN_FILE" 2>/dev/null | tr -d ' ') echo "LEARNINGS: $_LEARN_COUNT entries loaded" if [ "$_LEARN_COUNT" -gt 5 ] 2>/dev/null; then ~/.vibestack/bin/vibe-learnings-search --limit 5 2>/dev/null || true fi else echo "LEARNINGS: none yet" fi ``` {{include lib/snippets/session-host.md}} {{include lib/snippets/decision-brief.md}} {{include lib/snippets/working-protocols.md}} {{include lib/snippets/state-protocols.md}} ## Step 0: Detect platform and base branch First, detect the git hosting platform from the remote URL: ```bash git remote get-url origin 2>/dev/null ``` - If the URL contains "github.com" → platform is **GitHub** - If the URL contains "gitlab" → platform is **GitLab** - Otherwise, check CLI availability: - `gh auth status 2>/dev/null` succeeds → platform is **GitHub** (covers GitHub Enterprise) - `glab auth status 2>/dev/null` succeeds → platform is **GitLab** (covers self-hosted) - Neither → **unknown** (use git-native commands only) Determine which branch this PR/MR targets, or the repo's default branch if no PR/MR exists. Use the r...