morrislu-taipei/tigerai-n8n-skill-pack/n8n-api-bridge

N8N_API_URL=https://your-n8n.example.com   # 不含結尾斜線
N8N_API_KEY=<api-key>                       # 從 n8n Settings → API 取得

curl -H "X-N8N-API-KEY: $N8N_API_KEY" "$N8N_API_URL/api/v1/workflows?limit=1"

1. GET /api/v1/workflows/{id}
2. 從 nodes[] 抽 type=stickyNote 且 color=4 的節點
3. 連接其 parameters.content（多張依 position.x 排序）
4. 把 content 餵給 sticky-note-to-workflow
5. 取得新 workflow JSON
6. PUT /api/v1/workflows/{id}（body: {name, nodes, connections, settings}）
   ↑ 注意：Layer 1 sticky 必須保留，只新增/替換 Layer 2 + Layer 3

// pseudo
const existing = await get(id);
const userLayer1 = existing.nodes.filter(n => n.type === 'stickyNote' && n.parameters.color === 4);
const aiLayer2 = generatedNodes.filter(n => n.type !== 'stickyNote');
const aiLayer3 = generatedNodes.filter(n => n.type === 'stickyNote' && n.parameters.color === 5);
const merged = {
  ...existing,
  nodes: [...userLayer1, ...aiLayer2, ...aiLayer3],
  connections: generatedConnections,  // 連線全替換（不含 sticky）
};
await updateFull(id, merged);

# Pseudo-code (純 REST API，無任何 MCP 依賴)
import os, requests
N8N_URL = os.environ['N8N_API_URL']
HEADERS = {'X-N8N-API-KEY': os.environ['N8N_API_KEY']}
def regenerate_workflow_from_sticky(workflow_id):
    # 1. GET 取現有 workflow
    r = requests.get(f"{N8N_URL}/api/v1/workflows/{workflow_id}", headers=HEADERS)
    wf = r.json()
    # 2. 抽 user Layer 1 sticky (color=4)
    user_layer1 = [n for n in wf['nodes']
                   if n['type'] == 'n8n-nodes-base.stickyNote'
                   and n['parameters'].get('color') == 4]
    if not user_layer1:
        raise Exception("No user sticky note (color=4) found")
    layer1_text = "\n\n".join(sorted(user_layer1, key=lambda n: n['position'][0])
                              [0]['parameters']['content'] for n in user_layer1)
    # 3. 呼叫 sticky-note-to-workflow Skill 產出新 nodes (Layer 2 + Layer 3)
    result = invoke_skill('sticky-note-to-workflow', layer1=layer1_text)
    if not result['success']:
        return result['errors']
    # 4. 合併三層（保留 Layer 1）
    merged = merge_three_layers(wf, user_layer1, result['workflow'])
    # 5. PUT 寫回（n8n 自動 schema 驗證）
    requests.put(f"{N8N_URL}/api/v1/workflows/{workflow_id}",
                 headers=HEADERS, json=merged)
    return {'workflow_id': workflow_id, 'status': 'regenerated'}