diff --git a/.gitea/workflows/sync-wrappers.yml b/.gitea/workflows/sync-wrappers.yml
new file mode 100644
index 0000000..a843848
--- /dev/null
+++ b/.gitea/workflows/sync-wrappers.yml
@@ -0,0 +1,50 @@
+# Auto-PR canonical wrapper updates to consumer repos when wrappers/ changes on
+# main. Maintenance automation (not artifact publishing), so it is allowed on a
+# main push under the D7 trigger standard. Requires WRAPPER_SYNC_TOKEN: a bot
+# user's token with content+PR write to the consumer repos (never committed).
+name: sync-wrappers
+
+on:
+  push:
+    branches: [main]
+    paths:
+      - 'wrappers/crucible.sh'
+      - 'wrappers/crucible.ps1'
+
+jobs:
+  sync:
+    runs-on: nix-docker
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Open sync PRs to consumers
+        env:
+          TOKEN: ${{ secrets.WRAPPER_SYNC_TOKEN }}
+          SERVER: ${{ github.server_url }}
+          SRC_SHA: ${{ github.sha }}
+        run: |
+          nix develop --command bash -c '
+            set -euo pipefail
+            host="$(echo "$SERVER" | sed -E "s#https?://##")"
+            branch="chore/sync-wrappers-$(echo "$SRC_SHA" | cut -c1-12)"
+            grep -vE "^\s*#|^\s*$" wrappers/consumers.txt | while read -r target; do
+              echo "== syncing $target =="
+              work="$(mktemp -d)"
+              git clone "https://oauth2:${TOKEN}@${host}/${target}.git" "$work"
+              cp wrappers/crucible.sh wrappers/crucible.ps1 "$work"/
+              ( cd "$work"
+                git config user.name  "crucible-sync-bot"
+                git config user.email "bot@westgate.pw"
+                if git diff --quiet; then echo "no changes for $target"; exit 0; fi
+                git checkout -b "$branch"
+                git add crucible.sh crucible.ps1
+                git commit -m "chore: sync crucible wrappers from sow-tools@${SRC_SHA}"
+                git push -f origin "$branch"
+                curl -fsS -X POST \
+                  -H "Authorization: token ${TOKEN}" -H "Content-Type: application/json" \
+                  "${SERVER}/api/v1/repos/${target}/pulls" \
+                  -d "{\"head\":\"${branch}\",\"base\":\"main\",\"title\":\"chore: sync crucible wrappers from sow-tools\"}" || true
+              )
+              rm -rf "$work"
+            done
+          '
diff --git a/wrappers/consumers.txt b/wrappers/consumers.txt
new file mode 100644
index 0000000..f1f7c0c
--- /dev/null
+++ b/wrappers/consumers.txt
@@ -0,0 +1,5 @@
+# Repos that carry copies of the canonical Crucible wrappers.
+# One "owner/repo" per line. sync-wrappers.yml opens an update PR to each when
+# wrappers/ changes. Add a repo here AND grant the sync bot write access to it.
+ShadowsOverWestgate/sow-module
+ShadowsOverWestgate/sow-topdata