diff --git a/tools/gitea.sh b/tools/gitea.sh
index c9c8767..a31d21b 100755
--- a/tools/gitea.sh
+++ b/tools/gitea.sh
@@ -12,6 +12,9 @@
 #   gitea.sh wiki-get <owner>/<repo> <page>          # 印出 wiki 頁 markdown；不存在時 exit 4
 #   gitea.sh wiki-put <owner>/<repo> <page> <file>   # 建立或更新 wiki 頁（內容取自檔案）
 #   gitea.sh pr-create <owner>/<repo> <head> <base> <title> <body-file>  # 建立 PR，印出 PR URL
+#   gitea.sh pr-depend <owner>/<repo> <pr-index> <dep-owner>/<dep-repo> <dep-index>
+#       把 PR 掛上前置 PR 依賴；依賴未關閉前 Gitea 會阻擋合併
+#   gitea.sh repo-set <owner>/<repo> <description> [website]             # 設定 repo 描述與網頁
 #   gitea.sh api <METHOD> <path> [json-file]         # 原始 API 呼叫（path 以 /repos/... 起始）
 # 環境變數: GITEA_HOST（例 https://gitea.jsc.idv.tw）、GITEA_TOKEN
 set -eu
@@ -117,6 +120,34 @@ print(json.dumps({"head":sys.argv[1],"base":sys.argv[2],"title":sys.argv[3],
 ' "$head" "$base" "$title" "$body_file" > "$tmp"
     req POST "/repos/$or/pulls" "$tmp" | json_field html_url
     rm -f "$tmp" ;;
+  pr-depend)
+    or="${1:?owner/repo required}"; idx="${2:?pr index required}"
+    dep_or="${3:?dep owner/repo required}"; dep_idx="${4:?dep index required}"
+    tmp=$(mktemp)
+    python3 -c '
+import json,sys
+o,r=sys.argv[1].split("/",1)
+print(json.dumps({"owner":o,"repo":r,"index":int(sys.argv[2])}))
+' "$dep_or" "$dep_idx" > "$tmp"
+    if ! out=$(req POST "/repos/$or/issues/$idx/dependencies" "$tmp"); then
+      rm -f "$tmp"; printf '%s\n' "$out" >&2; exit 4
+    fi
+    rm -f "$tmp"
+    echo "OK $or#$idx depends on $dep_or#$dep_idx" ;;
+  repo-set)
+    or="${1:?owner/repo required}"; desc="${2:?description required}"; site="${3:-}"
+    tmp=$(mktemp)
+    python3 -c '
+import json,sys
+b={"description":sys.argv[1]}
+if len(sys.argv)>2 and sys.argv[2]: b["website"]=sys.argv[2]
+print(json.dumps(b))
+' "$desc" "$site" > "$tmp"
+    if ! out=$(req PATCH "/repos/$or" "$tmp"); then
+      rm -f "$tmp"; printf '%s\n' "$out" >&2; exit 4
+    fi
+    rm -f "$tmp"
+    echo "OK $or" ;;
   api)
     method="${1:?METHOD}"; path="${2:?path}"; body="${3:-}"
     req "$method" "$path" $body ;;