From dae59ff438a75d5478d155fa3b052ed7f23dac3d Mon Sep 17 00:00:00 2001
From: Kyle Tse <hi@kylet.se>
Date: Wed, 30 Sep 2026 01:01:42 +0000
Subject: [PATCH] ci: cancel superseded PR runs natively (concurrency per PR)

---
 .github/workflows/bench.yml | 2 +-
 .github/workflows/ci.yml    | 2 +-
 .github/workflows/demo.yml  | 4 ++++
 3 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/bench.yml b/.github/workflows/bench.yml
index 204ca7a..c5b4751 100644
--- a/.github/workflows/bench.yml
+++ b/.github/workflows/bench.yml
@@ -24,7 +24,7 @@ permissions:
 # One run at a time: Context7's anonymous quota is shared.
 concurrency:
   group: bench-${{ github.ref }}
-  cancel-in-progress: true
+  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
 
 jobs:
   bench:
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 547379c..1ebd26e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,7 +12,7 @@ permissions:
 
 concurrency:
   group: ci-${{ github.event.pull_request.number || github.event.merge_group.head_sha || github.ref }}
-  cancel-in-progress: true
+  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
 
 jobs:
   plain-language:
diff --git a/.github/workflows/demo.yml b/.github/workflows/demo.yml
index b7edd06..e575b01 100644
--- a/.github/workflows/demo.yml
+++ b/.github/workflows/demo.yml
@@ -11,6 +11,10 @@ on:
 permissions:
   contents: read
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
+
 jobs:
   record:
     runs-on: ubuntu-latest