From 3d543af2f196527f872c5dbe9f468d798c6e8712 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E1=84=8C=E1=85=A5=E1=86=BC=E1=84=8B=E1=85=B5=E1=86=AB?=
 =?UTF-8?q?=E1=84=80=E1=85=AF=E1=86=AB?= <developjik@gmail.com>
Date: Sat, 4 Apr 2026 22:41:09 +0900
Subject: [PATCH] chore(ci): validate action metadata conventions

- add CI workflow to run actionlint

- enforce node20 + dist/index.js conventions for all action.yml files

- fix notify-on-failure package description and missing newline
---
 .github/workflows/action-metadata-lint.yml | 36 ++++++++++++++++++++++
 notify-on-failure/action.yml               |  2 +-
 notify-on-failure/package.json             |  2 +-
 3 files changed, 38 insertions(+), 2 deletions(-)
 create mode 100644 .github/workflows/action-metadata-lint.yml

diff --git a/.github/workflows/action-metadata-lint.yml b/.github/workflows/action-metadata-lint.yml
new file mode 100644
index 0000000..bec6c56
--- /dev/null
+++ b/.github/workflows/action-metadata-lint.yml
@@ -0,0 +1,36 @@
+name: Validate Action Metadata
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+jobs:
+  action-metadata:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Run actionlint
+        uses: reviewdog/actionlint@v1
+
+      - name: Verify action runtime and entrypoint convention
+        run: |
+          set -euo pipefail
+          failed=0
+          while IFS= read -r action_file; do
+            if ! grep -Eq "^[[:space:]]*using:[[:space:]]*'node20'[[:space:]]*$" "$action_file"; then
+              echo "[ERROR] $action_file must set runs.using to 'node20'"
+              failed=1
+            fi
+            if ! grep -Eq "^[[:space:]]*main:[[:space:]]*'dist/index.js'[[:space:]]*$" "$action_file"; then
+              echo "[ERROR] $action_file must set runs.main to 'dist/index.js'"
+              failed=1
+            fi
+          done < <(find . -mindepth 2 -maxdepth 2 -type f -name action.yml | sort)
+
+          if [ "$failed" -ne 0 ]; then
+            exit 1
+          fi
diff --git a/notify-on-failure/action.yml b/notify-on-failure/action.yml
index 8fc36a0..20794ad 100644
--- a/notify-on-failure/action.yml
+++ b/notify-on-failure/action.yml
@@ -18,4 +18,4 @@ inputs:
     required: false
 runs:
   using: 'node20'
-  main: 'dist/index.js' 
\ No newline at end of file
+  main: 'dist/index.js' 
diff --git a/notify-on-failure/package.json b/notify-on-failure/package.json
index f88fb0f..bbb8eea 100644
--- a/notify-on-failure/package.json
+++ b/notify-on-failure/package.json
@@ -1,7 +1,7 @@
 {
   "name": "notify-on-failure",
   "version": "1.0.0",
-  "description": "GitHub Action for notifying Slack on push events",
+  "description": "GitHub Action for notifying Slack on workflow failure events",
   "main": "dist/index.js",
   "scripts": {
     "build": "ncc build index.js -o dist"