diff --git a/scripts/orchestra_worktree_report.sh b/scripts/orchestra_worktree_report.sh
new file mode 100755
index 0000000..f7cc8c0
--- /dev/null
+++ b/scripts/orchestra_worktree_report.sh
@@ -0,0 +1,53 @@
+#!/usr/bin/env bash
+
+WORKTREES=/tmp/test-e2e-worktrees
+REPO=/tmp/test-e2e
+
+main() {
+  json=0
+
+  for arg in "$@"; do
+    case "$arg" in
+      --help)
+        printf 'Usage: %s [--json]\n\n' "${0##*/}"
+        printf 'Reports on the local Orchestra worktree layout.\n'
+        printf 'Prints a human-readable summary by default, or one JSON object with --json.\n'
+        exit 0
+        ;;
+      --json)
+        json=1
+        ;;
+      *)
+        printf 'unknown argument: %s\n' "$arg" >&2
+        exit 2
+        ;;
+    esac
+  done
+
+  if [ -d "$WORKTREES" ]; then
+    exists=true
+    count=$(ls -A "$WORKTREES" 2>/dev/null | wc -l)
+  else
+    exists=false
+    count=0
+  fi
+
+  if [ -d "$REPO/.git" ]; then
+    is_git=true
+  else
+    is_git=false
+  fi
+
+  if [ "$json" = 1 ]; then
+    printf '{"worktrees_dir":"%s","worktrees_dir_exists":%s,"worktrees_entries":%s,"repo":"%s","repo_is_git":%s}\n' \
+      "$WORKTREES" "$exists" "$count" "$REPO" "$is_git"
+    exit 0
+  fi
+
+  printf '%s exists: %s\n' "$WORKTREES" "$exists"
+  printf '%s entries: %s\n' "$WORKTREES" "$count"
+  printf '%s is a git repository: %s\n' "$REPO" "$is_git"
+  exit 0
+}
+
+main "$@"
diff --git a/scripts/test_orchestra_worktree_report.sh b/scripts/test_orchestra_worktree_report.sh
new file mode 100755
index 0000000..92d3c86
--- /dev/null
+++ b/scripts/test_orchestra_worktree_report.sh
@@ -0,0 +1,31 @@
+#!/usr/bin/env bash
+# ponytail: one assert-based check, no framework.
+
+S=$(dirname "$0")/orchestra_worktree_report.sh
+
+fail() { printf 'FAIL: %s\n' "$1" >&2; exit 1; }
+
+out=$(bash "$S" --help) || fail '--help exited non-zero'
+case "$out" in *Usage:*) ;; *) fail '--help printed no usage' ;; esac
+
+out=$(bash "$S") || fail 'no-args exited non-zero'
+case "$out" in *"/tmp/test-e2e-worktrees"*) ;; *) fail 'summary missing worktrees path' ;; esac
+case "$out" in *"/tmp/test-e2e is a git repository"*) ;; *) fail 'summary missing repo check' ;; esac
+
+out=$(bash "$S" --json) || fail '--json exited non-zero'
+[ "$(printf '%s\n' "$out" | wc -l)" = 1 ] || fail '--json printed more than one line'
+case "$out" in '{'*'}') ;; *) fail '--json is not one object' ;; esac
+for k in worktrees_dir_exists worktrees_entries repo_is_git; do
+  case "$out" in *"\"$k\":"*) ;; *) fail "--json missing key $k" ;; esac
+done
+n=${out#*\"worktrees_entries\":}
+n=${n%%,*}
+case "$n" in ''|*[!0-9]*) fail 'worktrees_entries is not digits' ;; esac
+
+err=$(bash "$S" --bogus 2>&1 >/dev/null)
+[ $? -ne 0 ] || fail '--bogus exited 0'
+case "$err" in *"unknown argument"*) ;; *) fail '--bogus printed no stderr message' ;; esac
+[ -z "$(bash "$S" --bogus 2>/dev/null)" ] || fail '--bogus wrote to stdout'
+
+printf 'OK\n'
+exit 0