From 24d9a332e728fa44adf2acf8dc0d32dc6646ff21 Mon Sep 17 00:00:00 2001
From: Steve Brown <scbrown3@gmail.com>
Date: Fri, 13 Nov 2026 20:06:15 -0500
Subject: [PATCH] fix(ci): run PR checks once and cancel superseded revisions

---
 .github/workflows/check.yml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index 395fd20..03d0901 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -1,8 +1,15 @@
 name: check
 on:
   push:
+    branches: [main]
+    tags: ['**']
   pull_request:
   workflow_dispatch:
+# Supersede only the same PR; main, tags and manual runs stay independent.
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.run_id }}
+  cancel-in-progress: true
+
 permissions:
   contents: read
 jobs: