--- name: gstack-upgrade version: 1.1.0 description: Upgrade gstack to the latest version. triggers: - upgrade gstack - update gstack version - get latest gstack allowed-tools: - Bash - Read - Write - AskUserQuestion --- ## When to invoke this skill Detects global vs vendored install, runs the upgrade, and shows what's new. Use when asked to "upgrade gstack", "update gstack", or "get latest version". Voice triggers (speech-to-text aliases): "upgrade the tools", "update the tools", "gee stack upgrade", "g stack upgrade". # /gstack-upgrade Upgrade gstack to the latest version and show what's new. ## Inline upgrade flow This section is referenced by all skill preambles when they detect `UPGRADE_AVAILABLE`. ### Step 1: Ask the user (or auto-upgrade) First, check if auto-upgrade is enabled: ```bash _AUTO="" [ "${GSTACK_AUTO_UPGRADE:-}" = "1" ] && _AUTO="true" [ -z "$_AUTO" ] && _AUTO=$(~/.claude/skills/gstack/bin/gstack-config get auto_upgrade 2>/dev/null || true) echo "AUTO_UPGRADE=$_AUTO" ``` **If `AUTO_UPGRADE=true` or `AUTO_UPGRADE=1`:** Skip AskUserQuestion. Log "Auto-upgrading gstack v{old} → v{new}..." and proceed directly to Step 2. On setup failure, follow Step 4's install-specific recovery: vendored installs restore their backup; git installs stop with the pre-upgrade commit recorded, without a destructive reset. Never claim restoration unless it actually succeeded. **Otherwise**, use AskUserQuestion: - Question: "gstack **v{new}** is available (you're on v{old}). Upgrade now?" - Options: ["Yes, upgrade now", "Always keep me up to date", "Not now", "Never ask again"] **If "Yes, upgrade now":** Proceed to Step 2. **If "Always keep me up to date":** ```bash ~/.claude/skills/gstack/bin/gstack-config set auto_upgrade true ``` Tell user: "Auto-upgrade enabled. Future updates will install automatically." Then proceed to Step 2. **If "Not now":** Write snooze state with escalating backoff (first snooze = 24h, second = 48h, third+ = 1 week), then continue with the current skill. Do not mention the upgrade again. ```bash GSTACK_STATE_ROOT=$(~/.claude/skills/gstack/bin/gstack-paths --get GSTACK_STATE_ROOT); : "${GSTACK_STATE_ROOT:?gstack-paths failed; reinstall with ./setup or /gstack-upgrade}" _SNOOZE_FILE="$GSTACK_STATE_ROOT/update-snoozed" _REMOTE_VER="{new}" _CUR_LEVEL=0 if [ -f "$_SNOOZE_FILE" ]; then _SNOOZED_VER=$(awk '{print $(1)}' "$_SNOOZE_FILE") if [ "$_SNOOZED_VER" = "$_REMOTE_VER" ]; then _CUR_LEVEL=$(awk '{print $(2)}' "$_SNOOZE_FILE") case "$_CUR_LEVEL" in *[!0-9]*) _CUR_LEVEL=0 ;; esac fi fi _NEW_LEVEL=$((_CUR_LEVEL + 1)) [ "$_NEW_LEVEL" -gt 3 ] && _NEW_LEVEL=3 echo "$_REMOTE_VER $_NEW_LEVEL $(date +%s)" > "$_SNOOZE_FILE" ``` Note: `{new}` is the remote version from the `UPGRADE_AVAILABLE` output — substitute it from the update check result. Tell user the snooze duration: "Next reminder in 24h" (or 48h or 1 week, depending on level). Tip: "Set `auto_upgrade: true` in `~/.gstack/config.yaml` for automatic upgrades." **If "Never ask again":** ```bash ~/.claude/skills/gstack/bin/gstack-config set update_check false ``` Tell user: "Update checks disabled. Run `~/.claude/skills/gstack/bin/gstack-config set update_check true` to re-enable." Continue with the current skill. ### Step 2: Detect install type ```bash if [ -d "$HOME/.claude/skills/gstack/.git" ]; then INSTALL_TYPE="global-git" INSTALL_DIR="$HOME/.claude/skills/gstack" elif [ -d "$HOME/.gstack/repos/gstack/.git" ]; then INSTALL_TYPE="global-git" INSTALL_DIR="$HOME/.gstack/repos/gstack" elif [ -d ".claude/skills/gstack/.git" ]; then INSTALL_TYPE="local-git" INSTALL_DIR=".claude/skills/gstack" elif [ -d ".agents/skills/gstack/.git" ]; then INSTALL_TYPE="local-git" INSTALL_DIR=".agents/skills/gstack" elif [ -d ".claude/skills/gstack" ]; then INSTALL_TYPE="vendored" INSTALL_DIR=".claude/skills/gstack" elif [ -d "$HOME/.claude/skills/gstack" ]; then INSTALL_TYPE="vendored-global" INSTALL_DIR="$HOME/.claude/skills/gstack" elif _SRC=$(~/.claude/skills/gstack/bin/gstack-paths --get GSTACK_STATE_ROOT 2>/dev/null) && _SRC=$(awk -F '\t' '$(1) == "claude" && $(6) != "-" { print $(6); exit }' "$_SRC/installs.tsv" 2>/dev/null) && [ -d "$_SRC/.git" ]; then # The install registry names the checkout setup activated for this host (e.g. a ~/gstack clone). INSTALL_TYPE="global-git" INSTALL_DIR="$_SRC" else echo "ERROR: gstack not found" exit 1 fi INSTALL_DIR=$(cd -- "$INSTALL_DIR" && pwd -P) || { echo "ERROR: cannot enter the gstack install directory" >&2; exit 1; } echo "Install type: $INSTALL_TYPE at $INSTALL_DIR" ``` The install type and the absolute directory printed above are used in all subsequent steps. Carry `INSTALL_TYPE`, `INSTALL_DIR`, `OLD_VERSION`, and later `NEW_VERSION` forward explicitly: tool calls may run in fresh shells, so start each later block by assigning them from the captured output (for example `INSTALL_DIR=/abs/path/printed/above`). Do not rely on a prior call's working directory or shell variables. Every block that changes files first checks `INSTALL_DIR` and stops before any git command when it is unset, empty, missing, unreadable, or not gstack's own checkout. ### Step 3: Save old version Use the install directory from Step 2's output below: ```bash OLD_VERSION=$(cat "${INSTALL_DIR:?INSTALL_DIR is not set: re-run Step 2 and substitute the printed path}/VERSION" 2>/dev/null || echo "unknown") echo "OLD_VERSION=$OLD_VERSION" ``` ### Step 4: Upgrade Use the install type and directory detected in Step 2: **For git installs** (global-git, local-git): Fast-forward first — the same policy the session-update auto-upgrade uses. `--autostash` carries local edits over the pull; render-footprint dirt is discarded first because it is regenerable and poisons stashes: ```bash cd -- "${INSTALL_DIR:?INSTALL_DIR is not set: re-run Step 2 and substitute the printed path}" || exit 1 { [ -f VERSION ] && [ -f setup ] && [ -f bin/gstack-config ] && [ "$(git rev-parse --show-toplevel 2>/dev/null)" = "$(pwd -P)" ]; } || { echo "ERROR: $INSTALL_DIR is not a gstack checkout; nothing was changed. Re-run Step 2." >&2; exit 1; } # Discard render-footprint dirt: older gbrain-enabled installs rendered # generated SKILL.md / sections files IN PLACE. They are regenerable (setup # re-renders to ~/.gstack/render), so discarding is lossless. git checkout -- 'SKILL.md' '*/SKILL.md' '*/sections/*.md' 2>/dev/null || true git fetch origin # Same pre-advance check as the auto-updater: the incoming release's Bun floor. HOLD=$(. bin/gstack-bun-version.sh 2>/dev/null && gstack_bun_incoming_hold . origin/main) && { echo "BUN_TOO_OLD: $HOLD; nothing was changed" >&2; exit 1; } PRE_UPGRADE_COMMIT=$(git rev-parse HEAD) echo "PRE_UPGRADE_COMMIT=$PRE_UPGRADE_COMMIT" if git pull --ff-only --autostash origin main; then if ./setup --refresh-registered; then echo "FF_OK"; else echo "SETUP_FAILED: git update succeeded; stop and inspect setup output (previous commit: $PRE_UPGRADE_COMMIT)" >&2; exit 1; fi else echo "FF_REFUSED" fi ``` Setup's `--refresh-registered` refreshes every install this checkout registered (each host, global and this project's), prints the source first, and ends with an `Upgrade summary` of one row per install. Relay those rows as printed. A `failed` row means that host kept its previous install; give its retry command and never say every host was refreshed. A `skipped` row belongs to another checkout or project; pass on its command, do not run it. If the output ends with `FF_OK`, the upgrade is done — skip the fallback below entirely. On `BUN_TOO_OLD`, STOP: tell the user to run `bun upgrade`, then /gstack-upgrade again. On `SETUP_FAILED`, STOP; keep user changes and report the recovery commit. There is no `.bak` on the git path. Do not enter the divergence fallback merely because setup failed. Enter it only on `FF_REFUSED`, after inspecting the pull error; network/auth failures stop for repair, not reset. **Fallback (ff-only refused — local commits or divergence).** `git reset --hard` DESTROYS things: a clean tree with unpushed local commits still loses those commits. Gate it: 1. Run `git status --porcelain` and `git rev-list origin/main..HEAD --oneline` in `$INSTALL_DIR`. 2. If BOTH are empty, the reset is provably safe — run the fallback block below without asking. 3. Otherwise ask via AskUserQuestion (one-way door — destructive), listing exactly what will be discarded: each dirty file and each unpushed commit by hash + subject. Options: **A)** Discard them and upgrade (reset) — requires the explicit letter; **B)** Abort the upgrade so the user can rescue their work first (recommended when local commits exist). Never proceed on a vague reply. ```bash cd -- "${INSTALL_DIR:?INSTALL_DIR is not set: re-run Step 2 and substitute the printed path}" || exit 1 { [ -f VERSION ] && [ -f setup ] && [ -f bin/gstack-config ] && [ "$(git rev-parse --show-toplevel 2>/dev/null)" = "$(pwd -P)" ]; } || { echo "ERROR: $INSTALL_DIR is not a gstack checkout; nothing was changed. Re-run Step 2." >&2; exit 1; } STASH_OUTPUT=$(git stash 2>&1) git reset --hard origin/main ./setup --refresh-registered ``` If `$STASH_OUTPUT` contains "Saved working directory", warn the user: "Note: local changes were stashed (any modified generated SKILL.md/sections files were discarded first — they regenerate on setup). Run `git stash pop` in the skill directory to restore your own changes." **For vendored installs** (vendored, vendored-global): ```bash (cd -- "${INSTALL_DIR:?INSTALL_DIR is not set: re-run Step 2 and substitute the printed path}" && [ -f VERSION ] && [ -f setup ] && [ -f bin/gstack-config ]) || { echo "ERROR: INSTALL_DIR=${INSTALL_DIR:-} is not a gstack install; nothing was changed. Re-run Step 2." >&2; exit 1; } # A stale .bak from a previously crashed upgrade would make the mv below NEST # the live install inside it and the failure-restore arm would "restore" the # stale backup. It may also be the only good copy from that crashed run — # abort and let the human inspect, never delete it silently. [ -e "$INSTALL_DIR.bak" ] && { echo "ERROR: stale backup exists at $INSTALL_DIR.bak (from a previous failed upgrade?) — inspect it, salvage/remove it, then re-run." >&2; exit 1; } TMP_DIR=$(mktemp -d "${TMPDIR:-/tmp}/gstack-upgrade.XXXXXX") || { echo "ERROR: mktemp failed — aborting upgrade (install untouched)." >&2; exit 1; } git clone --depth 1 https://github.com/garrytan/gstack.git "$TMP_DIR/gstack" || { echo "ERROR: clone failed — aborting upgrade (install untouched)." >&2; rm -rf "$TMP_DIR"; exit 1; } mv "$INSTALL_DIR" "$INSTALL_DIR.bak" || { rm -rf "$TMP_DIR"; exit 1; } if mv "$TMP_DIR/gstack" "$INSTALL_DIR"; then if (cd "$INSTALL_DIR" && ./setup --refresh-registered); then rm -rf "$INSTALL_DIR.bak" "$TMP_DIR" else rm -rf "$INSTALL_DIR" mv "$INSTALL_DIR.bak" "$INSTALL_DIR" || { echo "ERROR: restore failed; backup retained." >&2; exit 1; } rm -rf "$TMP_DIR" echo "ERROR: setup failed; previous install restored." >&2 exit 1 fi else mv "$INSTALL_DIR.bak" "$INSTALL_DIR" echo "ERROR: swap failed — previous install restored; upgrade aborted." >&2 rm -rf "$TMP_DIR" exit 1 fi ``` ### Step 4.5: Handle local vendored copy Use the install directory from Step 2. Check if there's also a local vendored copy, and whether team mode is active: ```bash _RESOLVED_PRIMARY=$(cd -- "${INSTALL_DIR:?INSTALL_DIR is not set: re-run Step 2 and substitute the printed path}" && pwd -P) || exit 1 _ROOT=$(git rev-parse --show-toplevel 2>/dev/null) LOCAL_GSTACK="" if [ -n "$_ROOT" ] && [ -d "$_ROOT/.claude/skills/gstack" ]; then _RESOLVED_LOCAL=$(cd "$_ROOT/.claude/skills/gstack" && pwd -P) if [ "$_RESOLVED_LOCAL" != "$_RESOLVED_PRIMARY" ]; then LOCAL_GSTACK="$_ROOT/.claude/skills/gstack" fi fi _TEAM_MODE=$(~/.claude/skills/gstack/bin/gstack-config get team_mode 2>/dev/null || echo "false") echo "LOCAL_GSTACK=$LOCAL_GSTACK" echo "TEAM_MODE=$_TEAM_MODE" ``` **If `LOCAL_GSTACK` is non-empty AND `TEAM_MODE` is `true`:** Remove the vendored copy. Team mode uses the global install as the single source of truth. ```bash (cd -- "${LOCAL_GSTACK:?LOCAL_GSTACK is not set: re-run the detection block above and substitute the printed path}" && [ -f VERSION ] && [ -f setup ] && [ -f bin/gstack-config ]) || { echo "ERROR: LOCAL_GSTACK=${LOCAL_GSTACK:-} is not a gstack copy; nothing was changed." >&2; exit 1; } _ROOT=${LOCAL_GSTACK%/.claude/skills/gstack} { [ "$_ROOT" != "$LOCAL_GSTACK" ] && cd -- "${_ROOT:?}" && [ "$(git rev-parse --show-toplevel 2>/dev/null)" = "$(pwd -P)" ]; } || { echo "ERROR: $LOCAL_GSTACK is not the vendored copy at the root of a git repository; nothing was changed." >&2; exit 1; } git rm -r --cached .claude/skills/gstack/ 2>/dev/null || true if ! grep -qF '.claude/skills/gstack/' .gitignore 2>/dev/null; then echo '.claude/skills/gstack/' >> .gitignore fi rm -rf "$LOCAL_GSTACK" ``` Tell user: "Removed vendored copy at `$LOCAL_GSTACK` (team mode active — global install is the source of truth). Commit the `.gitignore` change when ready." **If `LOCAL_GSTACK` is non-empty AND `TEAM_MODE` is NOT `true`:** Update it by copying from the freshly-upgraded primary install (same approach as README vendored install): ```bash (cd -- "${INSTALL_DIR:?INSTALL_DIR is not set: re-run Step 2 and substitute the printed path}" && [ -f VERSION ] && [ -f setup ] && [ -f bin/gstack-config ]) || { echo "ERROR: INSTALL_DIR=${INSTALL_DIR:-} is not a gstack install; nothing was changed." >&2; exit 1; } (cd -- "${LOCAL_GSTACK:?LOCAL_GSTACK is not set: re-run the detection block above and substitute the printed path}" && [ -f VERSION ] && [ -f setup ] && [ -f bin/gstack-config ]) || { echo "ERROR: LOCAL_GSTACK=${LOCAL_GSTACK:-} is not a gstack copy; nothing was changed." >&2; exit 1; } [ -e "$LOCAL_GSTACK.bak" ] && { echo "ERROR: stale vendored backup; inspect it before retrying." >&2; exit 1; } mv "$LOCAL_GSTACK" "$LOCAL_GSTACK.bak" || exit 1 if cp -Rf "$INSTALL_DIR" "$LOCAL_GSTACK" && rm -rf "$LOCAL_GSTACK/.git" && (cd "$LOCAL_GSTACK" && ./setup --refresh-registered); then rm -rf "$LOCAL_GSTACK.bak" echo "LOCAL_SYNC_OK" else rm -rf "$LOCAL_GSTACK" mv "$LOCAL_GSTACK.bak" "$LOCAL_GSTACK" || { echo "ERROR: restore failed; backup retained." >&2; exit 1; } echo "ERROR: sync failed; previous vendored copy restored." >&2 exit 1 fi ``` Only on `LOCAL_SYNC_OK`, tell user: "Also updated vendored copy at `$LOCAL_GSTACK` — commit `.claude/skills/gstack/` when you're ready." Otherwise stop and report the recovery outcome; do not continue migrations or announce success. ### Step 4.75: Run version migrations After `./setup` completes, run any migration scripts for versions between the old and new version. Migrations handle state fixes that `./setup` alone can't cover (stale config, orphaned files, directory structure changes). ```bash MIGRATIONS_DIR="${INSTALL_DIR:?INSTALL_DIR is not set: re-run Step 2 and substitute the printed path}/gstack-upgrade/migrations" : "${OLD_VERSION:?OLD_VERSION is not set: substitute the value Step 3 printed}" if [ -d "$MIGRATIONS_DIR" ]; then for migration in $(find "$MIGRATIONS_DIR" -maxdepth 1 -name 'v*.sh' -type f 2>/dev/null | sort -V); do # Extract version from filename: v0.15.2.0.sh → 0.15.2.0 m_ver="$(basename "$migration" .sh | sed 's/^v//')" # Run if this migration version is newer than old version # (simple string compare works for dotted versions with same segment count) if [ "$OLD_VERSION" != "unknown" ] && [ "$(printf '%s\n%s' "$OLD_VERSION" "$m_ver" | sort -V | head -1)" = "$OLD_VERSION" ] && [ "$OLD_VERSION" != "$m_ver" ]; then echo "Running migration $m_ver..." # GSTACK_INSTALL_DIR: migrations that clean the INSTALL (not just # ~/.gstack state) default to ~/.claude/skills/gstack when unset — # a repo-local install would silently no-op without this. GSTACK_INSTALL_DIR="$INSTALL_DIR" bash "$migration" || echo " Warning: migration $m_ver had errors (non-fatal)" fi done fi ``` Migrations are idempotent bash scripts in `gstack-upgrade/migrations/`. Each is named `v{VERSION}.sh` and runs only when upgrading from an older version. See CONTRIBUTING.md for how to add new migrations. ### Step 4.8: Stop any stale daemon (unconditional) A browse daemon started before the upgrade keeps serving the OLD binary's code until it is stopped — it survives `git reset --hard` and `./setup` because the running process holds the old executable. Always run this step, using the install directory detected in Step 2. ```bash INSTALL_DIR_PLACEHOLDER="" NEW_HASH=$(cat "$INSTALL_DIR_PLACEHOLDER/browse/dist/.version" 2>/dev/null || echo "") _STATE_FILE="${BROWSE_STATE_FILE:-$(git rev-parse --show-toplevel 2>/dev/null || pwd)/.gstack/browse.json}" if [ -z "$NEW_HASH" ] || [ ! -f "$_STATE_FILE" ]; then echo "DAEMON_CHECK=none (no state file or no fresh build hash)" else DAEMON_PID=$(sed -n 's/.*"pid"[[:space:]]*:[[:space:]]*\([0-9][0-9]*\).*/\1/p' "$_STATE_FILE" | head -1) DAEMON_PORT=$(sed -n 's/.*"port"[[:space:]]*:[[:space:]]*\([0-9][0-9]*\).*/\1/p' "$_STATE_FILE" | head -1) OLD_HASH=$(sed -n 's/.*"binaryVersion"[[:space:]]*:[[:space:]]*"\([^"]*\)".*/\1/p' "$_STATE_FILE" | head -1) if [ -z "$DAEMON_PID" ] || ! kill -0 "$DAEMON_PID" 2>/dev/null; then echo "DAEMON_CHECK=dead (no live daemon to stop)" elif [ "$OLD_HASH" = "$NEW_HASH" ]; then echo "DAEMON_CHECK=current (daemon already runs the new binary)" elif curl -fsS --max-time 2 "http://127.0.0.1:$DAEMON_PORT/health" 2>/dev/null | grep -q '"status":"healthy"'; then echo "DAEMON_CHECK=stale-responsive pid=$DAEMON_PID hash=${OLD_HASH:-unknown} -> $NEW_HASH" "$INSTALL_DIR_PLACEHOLDER/browse/dist/browse" stop && echo "DAEMON_STOPPED=yes" else echo "DAEMON_CHECK=stale-busy pid=$DAEMON_PID hash=${OLD_HASH:-unknown} -> $NEW_HASH" fi fi ``` Replace `` with the actual install directory before running. Interpret the `DAEMON_CHECK` result: 1. **`stale-responsive` + `DAEMON_STOPPED=yes`:** Tell the user "Stopped the old browse daemon (binary {OLD_HASH} → {NEW_HASH}). The next browse command starts a fresh daemon on the new binary." 2. **`stale-busy`:** The daemon runs the old binary but is mid-work — DEFER to it, never kill a busy daemon during upgrade. Tell the user: "A browse daemon is still running the pre-upgrade binary ({OLD_HASH} → {NEW_HASH}) but is busy right now. When it finishes, stop it with `browse stop` — or force it immediately with `browse --force-restart stop` (loses that session's tabs/cookies/logins)." 3. **`none` / `dead` / `current`:** Nothing to do — say nothing. ### Step 5: Write marker + clear cache ```bash GSTACK_STATE_ROOT=$(~/.claude/skills/gstack/bin/gstack-paths --get GSTACK_STATE_ROOT); : "${GSTACK_STATE_ROOT:?gstack-paths failed; reinstall with ./setup or /gstack-upgrade}" mkdir -p "$GSTACK_STATE_ROOT" echo "$OLD_VERSION" > "$GSTACK_STATE_ROOT"/just-upgraded-from rm -f "$GSTACK_STATE_ROOT"/last-update-check rm -f "$GSTACK_STATE_ROOT"/update-snoozed ``` ### Step 6: Show What's New Read `$INSTALL_DIR/CHANGELOG.md`. Find all version entries between the old version and the new version. Summarize as 5-7 bullets grouped by theme. Don't overwhelm — focus on user-facing changes. Skip internal refactors unless they're significant. Format: ``` gstack v{new} — upgraded from v{old}! What's new: - [bullet 1] - [bullet 2] - ... Happy shipping! ``` ### Step 7: Continue After showing What's New, continue with whatever skill the user originally invoked. The upgrade is done — no further action needed. --- ## Standalone usage When invoked directly as `/gstack-upgrade` (not from a preamble): 1. Force a fresh update check (bypass cache): ```bash ~/.claude/skills/gstack/bin/gstack-update-check --force 2>/dev/null || \ .claude/skills/gstack/bin/gstack-update-check --force 2>/dev/null || true ``` Use the output to determine if an upgrade is available. 2. If `UPGRADE_AVAILABLE `: follow Steps 2-6 above. If `CHECK_FAILED ...`: the remote version could not be read, so the update status is unknown. Show the line (it names the URL that failed) and tell the user the check failed; never report "already on the latest version". Stop. 3. If no output (primary is up to date): check for a stale local vendored copy. Run the Step 2 bash block above to detect the primary install type and directory (`INSTALL_TYPE` and `INSTALL_DIR`). Then run the Step 4.5 detection bash block above to check for a local vendored copy (`LOCAL_GSTACK`) and team mode status (`TEAM_MODE`). **If `LOCAL_GSTACK` is empty** (no local vendored copy): tell the user "You're already on the latest version (v{version})." **If `LOCAL_GSTACK` is non-empty AND `TEAM_MODE` is `true`:** Remove the vendored copy using the Step 4.5 team-mode removal bash block above. Tell user: "Global v{version} is up to date. Removed stale vendored copy (team mode active). Commit the `.gitignore` change when ready." **If `LOCAL_GSTACK` is non-empty AND `TEAM_MODE` is NOT `true`**, compare versions: ```bash PRIMARY_VER=$(cat "${INSTALL_DIR:?INSTALL_DIR is not set: re-run Step 2 and substitute the printed path}/VERSION" 2>/dev/null || echo "unknown") LOCAL_VER=$(cat "${LOCAL_GSTACK:?LOCAL_GSTACK is not set: re-run the Step 4.5 detection block}/VERSION" 2>/dev/null || echo "unknown") echo "PRIMARY=$PRIMARY_VER LOCAL=$LOCAL_VER" ``` **If versions differ:** follow the Step 4.5 sync bash block above to update the local copy from the primary. Tell user: "Global v{PRIMARY_VER} is up to date. Updated local vendored copy from v{LOCAL_VER} → v{PRIMARY_VER}. Commit `.claude/skills/gstack/` when you're ready." **If versions match:** tell the user "You're on the latest version (v{PRIMARY_VER}). Global and local vendored copy are both up to date."