diff --git a/.github/scripts/check-licenses.sh b/.github/scripts/check-licenses.sh
new file mode 100644
index 000000000..33882e607
--- /dev/null
+++ b/.github/scripts/check-licenses.sh
@@ -0,0 +1,72 @@
+#!/bin/bash
+# This file is synced from the `.github` repository, do not modify it directly.
+
+set -euo pipefail
+
+if [[ ! -f .github/denied-licenses.txt ]]
+then
+  echo "::error::.github/denied-licenses.txt is required."
+  exit 1
+fi
+denied="$(sed -E \
+  '/^[[:space:]]*(#|$)/d; s/^[[:space:]]*//; s/[[:space:]]*$//' \
+  .github/denied-licenses.txt | paste -sd, -)"
+if [[ -z "${denied}" ]]
+then
+  echo "::error::.github/denied-licenses.txt must contain at least one licence."
+  exit 1
+fi
+echo "Denied licences: ${denied}"
+
+export GIT_PKGS_DB="${RUNNER_TEMP:?}/git-pkgs/metadata.db"
+output="${RUNNER_TEMP}/licenses.json"
+stderr="${RUNNER_TEMP}/licenses.stderr"
+check_licenses() {
+  local label="$1" status=0 violations count
+  shift
+  "$@" --format=json --deny="${denied}" \
+    >"${output}" 2>"${stderr}" || status="$?"
+  if ! jq -e 'type == "array"' "${output}" &>/dev/null
+  then
+    echo "git pkgs licenses failed:"
+    cat "${stderr}"
+    cat "${output}"
+    if ((status == 0))
+    then
+      exit 1
+    fi
+    exit "${status}"
+  fi
+
+  violations="$(jq -r \
+    '.[] | select(.flagged) | . as $dep |
+    "\($dep.name) (\($dep.ecosystem)) \($dep.version // "?"): \($dep.licenses | join(", ")) - \($dep.flag_reason)"' \
+    "${output}")"
+  if [[ -n "${violations}" ]]
+  then
+    echo "Dependencies with denied licences:"
+    echo "${violations}"
+    exit 1
+  fi
+  if ((status != 0))
+  then
+    cat "${stderr}"
+    exit "${status}"
+  fi
+  count="$(jq length "${output}")"
+  echo "${label}: No denied licences found in ${count} dependencies."
+}
+
+check_licenses Non-Swift git \
+  -c pkgs.ecosystems=cargo \
+  -c pkgs.ecosystems=docker \
+  -c pkgs.ecosystems=rubygems \
+  -c pkgs.ecosystems=github-actions \
+  -c pkgs.ecosystems=npm \
+  -c pkgs.ecosystems=pypi \
+  pkgs licenses
+
+# Keep Swift's filtered snapshots separate from the other ecosystems.
+# Include transitive dependencies and Xcode lockfiles without a Package.swift.
+GIT_PKGS_DB="${RUNNER_TEMP}/git-pkgs/swift.db" \
+  check_licenses Swift git -c pkgs.ecosystems=swift pkgs licenses --dependencies=all
diff --git a/.github/workflows/licenses.yml b/.github/workflows/licenses.yml
index 0d4d17e67..e3d6fb62d 100644
--- a/.github/workflows/licenses.yml
+++ b/.github/workflows/licenses.yml
@@ -11,10 +11,13 @@ on:
       - "**/Cargo.lock"
       - "**/Cargo.toml"
       - "**/Gemfile.lock"
+      - "**/Package.resolved"
+      - "**/Package.swift"
       - "**/package-lock.json"
       - "**/package.json"
       - "**/requirements.txt"
       - .github/denied-licenses.txt
+      - .github/scripts/check-licenses.sh
       - .github/workflows/licenses.yml
   merge_group:
 
@@ -45,61 +48,12 @@ jobs:
         uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
         with:
           path: ${{ runner.temp }}/git-pkgs
-          key: git-pkgs-metadata-v1-${{ hashFiles('**/Gemfile.lock', '**/Cargo.toml', '**/Cargo.lock', '**/package.json', '**/package-lock.json', '**/requirements.txt') }}
+          key: git-pkgs-metadata-v1-${{ hashFiles('**/Gemfile.lock', '**/Cargo.toml', '**/Cargo.lock', '**/Package.resolved', '**/Package.swift', '**/package.json', '**/package-lock.json', '**/requirements.txt') }}
           restore-keys: git-pkgs-metadata-v1-
 
-      - name: Read denied licences
-        run: |
-          if [[ ! -f .github/denied-licenses.txt ]]; then
-            echo "::error::.github/denied-licenses.txt is required."
-            exit 1
-          fi
-          denied="$(sed -E \
-            '/^[[:space:]]*(#|$)/d; s/^[[:space:]]*//; s/[[:space:]]*$//' \
-            .github/denied-licenses.txt | paste -sd, -)"
-          if [[ -z "${denied}" ]]; then
-            echo "::error::.github/denied-licenses.txt must contain at least one licence."
-            exit 1
-          fi
-          echo "Denied licences: ${denied}"
-          echo "DENIED_LICENSES=${denied}" >> "${GITHUB_ENV}"
-
       - name: Check licences
         env:
-          GIT_PKGS_DB: ${{ runner.temp }}/git-pkgs/metadata.db
           # Identify ecosyste.ms requests for its polite pool:
           # https://github.com/git-pkgs/git-pkgs#configuration
           GIT_PKGS_ECOSYSTEMS_FROM: leads@brew.sh
-        run: |
-          output="${RUNNER_TEMP}/licenses.json"
-          stderr="${RUNNER_TEMP}/licenses.stderr"
-          status=0
-          git \
-            -c pkgs.ecosystems=cargo \
-            -c pkgs.ecosystems=docker \
-            -c pkgs.ecosystems=rubygems \
-            -c pkgs.ecosystems=github-actions \
-            -c pkgs.ecosystems=npm \
-            -c pkgs.ecosystems=pypi \
-            pkgs licenses --format=json --deny="${DENIED_LICENSES}" \
-            > "${output}" 2> "${stderr}" || status="$?"
-          if ! jq -e 'type == "array"' "${output}" &>/dev/null; then
-            echo "git pkgs licenses failed:"
-            cat "${stderr}"
-            cat "${output}"
-            if ((status == 0)); then
-              exit 1
-            fi
-            exit "${status}"
-          fi
-
-          violations="$(jq -r \
-            '.[] | select(.flagged) | . as $dep |
-            "\($dep.name) (\($dep.ecosystem)) \($dep.version // "?"): \($dep.licenses | join(", ")) - \($dep.flag_reason)"' \
-            "${output}")"
-          if [ -n "${violations}" ]; then
-            echo "Dependencies with denied licences:"
-            echo "${violations}"
-            exit 1
-          fi
-          echo "No denied licences found in $(jq length "${output}") dependencies."
+        run: bash .github/scripts/check-licenses.sh