feat(ce-polish-beta): human-in-the-loop polish phase between /ce:review and merge (#568)

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

plugins/compound-engineering/skills/ce-polish-beta/scripts/resolve-package-manager.sh

@@ -0,0 +1,95 @@
+#!/usr/bin/env bash
+#
+# resolve-package-manager.sh — detect which JS package manager a project uses
+# by inspecting lockfiles, and emit the binary name plus canonical command tail.
+#
+# Usage:
+#   resolve-package-manager.sh [path]
+#
+# Arguments:
+#   path (optional) — directory to inspect. When omitted, defaults to the
+#                     repo root via `git rev-parse --show-toplevel`.
+#
+# Output contract (two lines on stdout):
+#   Line 1: package-manager binary token (`npm` | `pnpm` | `yarn` | `bun`)
+#   Line 2: canonical argv tail for running a dev script
+#            - npm:  "run dev"   (npm requires the `run` verb)
+#            - pnpm: "dev"       (pnpm allows bare script names)
+#            - yarn: "dev"       (yarn allows bare script names)
+#            - bun:  "run dev"   (bun requires the `run` verb)
+#
+# Lockfile priority order (first match wins):
+#   1. pnpm-lock.yaml    -> pnpm
+#   2. yarn.lock          -> yarn
+#   3. bun.lock           -> bun  (text format, preferred — newer canonical)
+#   4. bun.lockb          -> bun  (binary format, legacy)
+#   5. package-lock.json  -> npm
+#   When both bun.lock and bun.lockb are present, bun.lock (text) is checked
+#   first and wins because it is the newer canonical format.
+#
+# Sentinel (stdout, exit 0):
+#   __NO_PACKAGE_JSON__  — the target directory has no package.json
+#
+# Errors (stderr, exit 1):
+#   ERROR: <message>     — path does not exist, is not a directory, or
+#                          no positional arg and not inside a git repo
+
+set -u
+
+TARGET_PATH="${1:-}"
+
+# Resolve target directory: positional arg or git repo root.
+if [ -n "$TARGET_PATH" ]; then
+  if [ ! -d "$TARGET_PATH" ]; then
+    echo "ERROR: path does not exist or is not a directory: $TARGET_PATH" >&2
+    exit 1
+  fi
+else
+  TARGET_PATH=$(git rev-parse --show-toplevel 2>/dev/null)
+  if [ -z "$TARGET_PATH" ]; then
+    echo "ERROR: not in a git repository and no path argument provided" >&2
+    exit 1
+  fi
+fi
+
+# Sentinel: no package.json means this is not a JS/TS project.
+if [ ! -f "$TARGET_PATH/package.json" ]; then
+  echo "__NO_PACKAGE_JSON__"
+  exit 0
+fi
+
+# Check lockfiles in priority order.
+if [ -f "$TARGET_PATH/pnpm-lock.yaml" ]; then
+  echo "pnpm"
+  echo "dev"
+  exit 0
+fi
+
+if [ -f "$TARGET_PATH/yarn.lock" ]; then
+  echo "yarn"
+  echo "dev"
+  exit 0
+fi
+
+if [ -f "$TARGET_PATH/bun.lock" ]; then
+  echo "bun"
+  echo "run dev"
+  exit 0
+fi
+
+if [ -f "$TARGET_PATH/bun.lockb" ]; then
+  echo "bun"
+  echo "run dev"
+  exit 0
+fi
+
+if [ -f "$TARGET_PATH/package-lock.json" ]; then
+  echo "npm"
+  echo "run dev"
+  exit 0
+fi
+
+# Fallback: package.json present but no recognized lockfile.
+echo "npm"
+echo "run dev"
+exit 0