diff --git a/workflows/u/antigravity/git_sync__flow/a.sh b/workflows/u/antigravity/git_sync__flow/a.sh
index 3c75a17..25cf1c4 100644
--- a/workflows/u/antigravity/git_sync__flow/a.sh
+++ b/workflows/u/antigravity/git_sync__flow/a.sh
@@ -2,10 +2,10 @@
 set -e
 export PATH=/usr/bin:/usr/local/bin:/usr/sbin:/sbin:/bin:$PATH
 
-GREEN=""
-YELLOW=""
-RED=""
-NC=""
+GREEN="\033[0;32m"
+YELLOW="\033[1;33m"
+RED="\033[0;31m"
+NC="\033[0m"
 
 echo -e "${GREEN}=== Windmill Workflow Git Sync ===${NC}"
 
@@ -22,6 +22,19 @@ git config --global --add safe.directory "$REPO_ROOT"
 git config --global user.email "bot@keinafarm.net"
 git config --global user.name "Windmill Bot"
 
+# sync ブランチを使用
+CURRENT_BRANCH=$(git -C "$REPO_ROOT" rev-parse --abbrev-ref HEAD)
+if [ "$CURRENT_BRANCH" != "sync" ]; then
+    echo -e "${YELLOW}Switching to sync branch...${NC}"
+    git -C "$REPO_ROOT" fetch origin sync
+    git -C "$REPO_ROOT" checkout sync
+fi
+
+echo -e "${YELLOW}Pulling from origin/sync...${NC}"
+git -C "$REPO_ROOT" pull --rebase origin sync || {
+    echo -e "${RED}Failed to pull from remote. Continuing...${NC}"
+}
+
 echo -e "${YELLOW}Pulling from Windmill...${NC}"
 cd "$WMILL_DIR"
 wmill sync pull --config-dir /workspace/wmill_config --skip-variables --skip-secrets --skip-resources --yes || exit 1
@@ -32,15 +45,12 @@ if [[ -n $(git status --porcelain) ]]; then
     git add -A
     TIMESTAMP=$(date "+%Y-%m-%d %H:%M:%S")
     git commit -m "Auto-sync: ${TIMESTAMP}"
-    echo -e "${YELLOW}Pushing to Gitea...${NC}"
-    git pull --rebase origin main || {
-        echo -e "${RED}Failed to pull from remote. Trying push anyway...${NC}"
-    }
-    git push origin main || {
+    echo -e "${YELLOW}Pushing to Gitea (sync branch)...${NC}"
+    git push origin sync || {
         echo -e "${RED}Failed to push.${NC}"
         exit 1
     }
-    echo -e "${GREEN}Changes pushed to Gitea${NC}"
+    echo -e "${GREEN}Changes pushed to Gitea (sync branch)${NC}"
 else
     echo -e "${GREEN}No changes detected${NC}"
 fi
diff --git a/workflows/u/antigravity/git_sync__flow/flow.yaml b/workflows/u/antigravity/git_sync__flow/flow.yaml
index cf6f6bd..2eba55e 100644
--- a/workflows/u/antigravity/git_sync__flow/flow.yaml
+++ b/workflows/u/antigravity/git_sync__flow/flow.yaml
@@ -1,5 +1,5 @@
 summary: Git Sync Workflow
-description: Automatically sync Windmill workflows to Git repository
+description: Automatically sync Windmill workflows to Git repository (sync branch)
 value:
   modules:
     - id: a
@@ -9,9 +9,4 @@ value:
         input_transforms: {}
         lock: ''
         language: bash
-schema:
-  $schema: 'https://json-schema.org/draft/2020-12/schema'
-  type: object
-  order: []
-  properties: {}
-  required: []
+schema: null
diff --git a/workflows/wmill-lock.yaml b/workflows/wmill-lock.yaml
index 518e086..1165aa0 100644
--- a/workflows/wmill-lock.yaml
+++ b/workflows/wmill-lock.yaml
@@ -14,8 +14,8 @@ locks:
   g/all/setup_app__app+__app_hash: d71add32e14e552d1a4c861c972a50d9598b07c0af201bbadec5b59bbd99d7e3
   g/all/setup_app__app+change_account.deno.ts: 3c592cac27e9cdab0de6ae19270bcb08c7fa54355ad05253a12de2351894346b
   u/admin/hub_sync: aaf9fd803fa229f3029d1bb02bbe3cc422fce680cad39c4eec8dd1da115de102
-  u/antigravity/git_sync__flow+__flow_hash: 66cdf1feb6136bb87f65a050266840e7b074a136f4b752bd01dbe524eb8f05d7
-  u/antigravity/git_sync__flow+a.sh: 3094bf5aed54e3232c6e0260fa0b3f3849f7fc19930ec2a8395fcfe437cdbe8f
+  u/antigravity/git_sync__flow+__flow_hash: 5a7194ef6bf1ce5529e70ae74fdb4cd05a0da662c78bfa355bb7e98698689ae6
+  u/antigravity/git_sync__flow+a.sh: ac7fdc83548f305fed33389129b79439e0c40077ed39a410477c77d08dca0ca9
   u/antigravity/hello_world_demo__flow+__flow_hash: 0adc341960f8196454876684f85fe14ef087ba470322d2aabc99b37bf61edac9
   u/antigravity/hello_world_demo__flow+a.ts: 53669a285c16d4ba322888755a33424521f769e9ebf64fc1f0cb21f9952b5958
   u/antigravity/test_git_sync: 3aa9e66ad8c87f1c2718d41d78ce3b773ce20743e4a1011396edbe2e7f88ac51