From 1aef0dfbc82bebe9ca6847a67d76cdcb2e3d585a Mon Sep 17 00:00:00 2001
From: Jake Bailey <5341706+jakebailey@users.noreply.github.com>
Date: Tue, 21 Apr 2026 16:09:42 -0700
Subject: [PATCH] Use GHA ubuntu-slim where reasonable (#74899)

---
 .github/workflows/CI.yml                | 6 +++---
 .github/workflows/format-and-commit.yml | 2 +-
 .github/workflows/ghostbuster.yml       | 2 +-
 .github/workflows/lint-md.yml           | 2 +-
 .github/workflows/support-window.yml    | 2 +-
 5 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index aecb9596a5d32e..485bcdef8e4826 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -23,7 +23,7 @@ concurrency:
 
 jobs:
   setup-matrix:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     if: github.repository == 'DefinitelyTyped/DefinitelyTyped'
 
     outputs:
@@ -125,7 +125,7 @@ jobs:
         if: ${{ github.event_name == 'pull_request' }}
 
   dangerbot:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     if: github.repository == 'DefinitelyTyped/DefinitelyTyped' && github.event_name == 'pull_request'
 
     needs:
@@ -158,7 +158,7 @@ jobs:
           DANGER_GITHUB_API_TOKEN=$TOKEN pnpm danger ci || $( exit 0 )
 
   scripts:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     if: github.repository == 'DefinitelyTyped/DefinitelyTyped'
 
     steps:
diff --git a/.github/workflows/format-and-commit.yml b/.github/workflows/format-and-commit.yml
index 5f9dfffcd941f8..50b24e01bbeb1e 100644
--- a/.github/workflows/format-and-commit.yml
+++ b/.github/workflows/format-and-commit.yml
@@ -11,7 +11,7 @@ on:
 
 jobs:
   dprint-fmt:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     if: github.repository == 'DefinitelyTyped/DefinitelyTyped'
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
diff --git a/.github/workflows/ghostbuster.yml b/.github/workflows/ghostbuster.yml
index 846297fcdb510e..06024331e909bb 100644
--- a/.github/workflows/ghostbuster.yml
+++ b/.github/workflows/ghostbuster.yml
@@ -19,7 +19,7 @@ jobs:
     permissions:
       contents: write # for Git to git push
       pull-requests: write # for peter-evans/create-pull-request to create a PR
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     if: github.repository == 'DefinitelyTyped/DefinitelyTyped'
 
     steps:
diff --git a/.github/workflows/lint-md.yml b/.github/workflows/lint-md.yml
index d08978dff5da74..745c2f61c177c3 100644
--- a/.github/workflows/lint-md.yml
+++ b/.github/workflows/lint-md.yml
@@ -8,7 +8,7 @@ permissions:
 
 jobs:
   lint-md:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     if: github.repository == 'DefinitelyTyped/DefinitelyTyped'
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
diff --git a/.github/workflows/support-window.yml b/.github/workflows/support-window.yml
index ac74d645e3a192..eff34b12832caa 100644
--- a/.github/workflows/support-window.yml
+++ b/.github/workflows/support-window.yml
@@ -21,7 +21,7 @@ jobs:
     permissions:
       contents: write # for Git to git push
     if: github.repository == 'DefinitelyTyped/DefinitelyTyped'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - uses: ./.github/actions/setup-for-scripts