From 4b3f68cfa5f9ba744f387beca982036b3623e354 Mon Sep 17 00:00:00 2001
From: Melissa Liu <mellyeliu@meta.com>
Date: Tue, 16 Jun 2026 02:28:38 -0400
Subject: [PATCH] [ci] add dependabot config to group updates into single PRs

Adds .github/dependabot.yml so Dependabot bundles all updates for an
ecosystem into one grouped PR instead of one PR per dependency:

- npm (root + packages/** + examples/**): all updates -> one PR
- github-actions: all updates -> one PR

Reduces the one-PR-per-dependency noise. Note: severity filtering
(critical-only) is set separately via repo Dependabot auto-triage rules;
it cannot be expressed in dependabot.yml.
---
 .github/dependabot.yml | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 .github/dependabot.yml

diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 000000000..d1b343daa
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,36 @@
+# Dependabot configuration
+# https://docs.github.com/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file
+#
+# `groups` bundles all updates for an ecosystem into a SINGLE pull request
+# instead of one PR per dependency. This applies to both version updates and
+# (when "Grouped security updates" is enabled in repo settings) security
+# updates.
+#
+# NOTE: severity filtering (e.g. "only critical") is NOT configurable here —
+# it is set via repo Settings > Code security > Dependabot auto-triage rules.
+version: 2
+updates:
+  # JavaScript/TypeScript dependencies across the monorepo (root + workspaces).
+  - package-ecosystem: 'npm'
+    directories:
+      - '/'
+      - '/packages/**'
+      - '/examples/**'
+    schedule:
+      interval: 'weekly'
+    open-pull-requests-limit: 5
+    groups:
+      npm-dependencies:
+        patterns:
+          - '*'
+
+  # GitHub Actions used in .github/workflows.
+  - package-ecosystem: 'github-actions'
+    directory: '/'
+    schedule:
+      interval: 'weekly'
+    open-pull-requests-limit: 5
+    groups:
+      github-actions:
+        patterns:
+          - '*'