chore(skills): consolidar n8n-* (6→1) e cwp-* (8→1) em meta-skills

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-07 05:00:35 +01:00
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+---
+name: n8n
+description: Meta-skill n8n para criação e gestão de workflows na instância automator.descomplicar.pt. Cobre health check, webhooks, schedule (cron), sync de dados, notify (Slack/email/SMS) e chatbots/AI agents (LangChain/RAG). Triggers — n8n, workflow, automação, webhook, schedule, cron, sync, notify, alerta, slack, chatbot, ai agent, langchain, rag, automator, health check n8n.
+---
+
+# /n8n - Meta-skill n8n
+
+Skill unificada para a instância n8n Descomplicar (`https://automator.descomplicar.pt`, MCP `mcp__n8n__*`). Substitui as antigas n8n-chatbot, n8n-health, n8n-notify, n8n-schedule, n8n-sync, n8n-webhook.
+
+## Contexto NotebookLM (sempre antes de executar)
+
+| Notebook | ID |
+|----------|-----|
+| n8n Deep Research | `f2c809b8-1cb5-4dd0-aa7e-be2cfb6704d1` |
+
+```
+mcp__notebooklm__notebook_query({ notebook_id: "f2c809b8-1cb5-4dd0-aa7e-be2cfb6704d1", query: "<adaptar ao pedido>" })
+```
+
+## Workflow obrigatório (qualquer criação)
+
+```
+1. mcp__n8n__n8n_health_check()
+2. mcp__n8n__search_templates({ task: "<webhook|scheduling|data_sync|notification|ai_automation>" })
+3. Se template adequado -> mcp__n8n__n8n_deploy_template()
+4. Caso contrário, criar do zero seguindo a secção apropriada abaixo
+```
+
+---
+
+## 1. Health (diagnóstico)
+
+```
+/n8n health           # status rápido
+/n8n health verbose   # diagnóstico completo
+```
+
+```js
+mcp__n8n__n8n_health_check({ mode: "status" })
+mcp__n8n__n8n_health_check({ mode: "diagnostic", verbose: true })
+```
+
+Output esperado: status (OK/ERRO), URL, versão MCP, response time, workflows activos.
+
+Erros comuns: Connection refused (n8n offline), 401 (API key inválida — regenerar), timeout (rede). Diagnóstico manual:
+```bash
+curl -I https://automator.descomplicar.pt
+curl -H "X-N8N-API-KEY: $KEY" https://automator.descomplicar.pt/api/v1/workflows
+tail ~/.claude/logs/mcp-n8n.log
+```
+
+---
+
+## 2. Webhook
+
+Receber dados de sistemas externos.
+
+```
+/n8n webhook create <descrição>
+/n8n webhook list
+/n8n webhook test <workflow_id>
+```
+
+```js
+mcp__n8n__get_node({ nodeType: "nodes-base.webhook", detail: "standard", includeExamples: true })
+mcp__n8n__validate_node({ nodeType: "nodes-base.webhook", config: { httpMethod: "POST", path: "meu-webhook", responseMode: "onReceived" }, mode: "minimal" })
+mcp__n8n__n8n_create_workflow({ name: "Webhook - X", nodes: [...], connections: {...}, active: true })
+```
+
+Parâmetros: `httpMethod` (GET/POST/PUT/DELETE, default POST), `path` (obrigatório), `authentication` (none/basicAuth/headerAuth), `responseMode` (onReceived/lastNode).
+
+URLs: produção `https://automator.descomplicar.pt/webhook/<path>` | teste `https://automator.descomplicar.pt/webhook-test/<path>`.
+
+Nodes processamento: `nodes-base.set`, `nodes-base.if`, `nodes-base.code`, `nodes-base.httpRequest`.
+
+Teste:
+```js
+mcp__n8n__n8n_test_workflow({ workflowId: "wf-xxx", inputData: { body: {test:"data"}, headers: {"Content-Type":"application/json"} } })
+```
+```bash
+curl -X POST https://automator.descomplicar.pt/webhook/meu-webhook -H "Content-Type: application/json" -d '{"test":"data"}'
+```
+
+Troubleshooting: 404 (workflow não activo), 401 (auth), dados não chegam (responseMode).
+
+---
+
+## 3. Schedule (cron)
+
+Workflows com execução agendada.
+
+```
+/n8n schedule create <descrição>
+/n8n schedule list
+/n8n schedule disable <id>
+```
+
+Cron comuns: `0 9 * * *` (diário 9h), `0 9 * * 1-5` (Seg-Sex 9h), `0 */2 * * *` (cada 2h), `*/15 * * * *` (15min), `0 0 1 * *` (dia 1), `0 3 * * 0` (domingos 3h).
+
+```js
+mcp__n8n__validate_node({
+  nodeType: "nodes-base.scheduleTrigger",
+  config: { rule: { interval: [{ field: "cronExpression", expression: "0 9 * * 1-5" }] }, options: { timezone: "Europe/Lisbon" } },
+  mode: "minimal"
+})
+```
+
+Gestão:
+```js
+mcp__n8n__n8n_update_partial_workflow({ id: "wf-xxx", operations: [{ type: "deactivateWorkflow" }] })
+mcp__n8n__n8n_update_partial_workflow({ id: "wf-xxx", operations: [{ type: "activateWorkflow" }] })
+mcp__n8n__n8n_executions({ workflowId: "wf-xxx", limit: 10, status: "all" })
+```
+
+Exemplos: relatório diário (Schedule -> Postgres -> Set -> Email), backup semanal (Schedule -> SSH -> IF -> Slack), limpeza logs.
+
+Troubleshooting: não executa (workflow inactivo), hora errada (timezone), duplicado (múltiplos triggers).
+
+---
+
+## 4. Sync (sincronização de dados)
+
+```
+/n8n sync create <origem> <destino>
+/n8n sync list
+/n8n sync status <workflow_id>
+```
+
+Padrões: One-Way (origem -> transform -> destino), Two-Way (com resolução conflitos), Hub-and-Spoke.
+
+Nodes:
+- APIs: `nodes-base.httpRequest`, `nodes-base.webhook`
+- BD: `nodes-base.postgres`, `nodes-base.mySql`, `nodes-base.mongoDb`
+- Ficheiros: `nodes-base.googleSheets`, `nodes-base.spreadsheetFile`, `nodes-base.ftp`
+
+Estratégias: Full Sync, Incremental (updated_at), Delta (hashes).
+
+Upsert:
+```js
+{ nodeType: "nodes-base.postgres", config: { operation: "upsert", table: "clientes", columns: "email,nome,empresa", conflictColumns: "email" } }
+```
+
+Erros: retry (`{ options: { retry: { maxRetries: 3, retryInterval: 1000 } } }`), Dead Letter Queue (Error Trigger -> BD -> Slack).
+
+Exemplo CRM->Sheets: Schedule -> HTTP GET leads -> IF -> Set -> Google Sheets append -> Slack.
+
+Troubleshooting: duplicados (upsert), timeout (batches menores), rate limit (delays).
+
+---
+
+## 5. Notify (alertas)
+
+```
+/n8n notify create <descrição>
+/n8n notify slack <mensagem>
+/n8n notify email <para> <assunto>
+```
+
+Canais: Slack (`nodes-base.slack`), Email (`nodes-base.emailSend`), Telegram, Discord, SMS Twilio.
+
+Slack:
+```js
+mcp__n8n__validate_node({
+  nodeType: "nodes-base.slack",
+  config: { resource: "message", operation: "post", channel: "#alertas", text: "..." },
+  mode: "minimal"
+})
+```
+
+Mensagem formatada (Blocks): header + section com `mrkdwn` e `{{ $json.message }}`.
+
+Email:
+```js
+mcp__n8n__validate_node({
+  nodeType: "nodes-base.emailSend",
+  config: { fromEmail: "alertas@descomplicar.pt", toEmail: "emanuel@descomplicar.pt", subject: "Alerta: {{ $json.title }}", text: "{{ $json.message }}" },
+  mode: "minimal"
+})
+```
+
+Padrões: Webhook->Slack, Monitor->Multi-canal (Schedule -> HTTP -> IF -> Slack+Email), Error Handler (Error Trigger -> Slack).
+
+Níveis: Info (Slack), Warning (Slack+Email), Critical (Slack+Email+SMS) — implementar com IF aninhado por `severity`.
+
+Troubleshooting: Slack não envia (token/canal), email em spam (SPF/DKIM), rate limited (agrupar).
+
+---
+
+## 6. Chatbot / AI Agents (LangChain)
+
+```
+/n8n chatbot create <descrição>
+/n8n chatbot agent <tipo>
+/n8n chatbot rag <knowledge_base>
+```
+
+### Nodes LangChain
+
+Core: `@n8n/n8n-nodes-langchain.agent`, `chainLlm`, `chainRetrievalQa`.
+Modelos: `lmChatOpenAi`, `lmChatAnthropic`, `lmChatOllama`.
+Memória: `memoryBufferWindow`, `memoryPostgresChat`, `memoryRedisChat`.
+Tools: `toolCalculator`, `toolCode`, `toolHttpRequest`, `toolWorkflow`.
+Vector Stores: `vectorStoreSupabase`, `vectorStorePinecone`, `vectorStorePgVector`.
+
+### Chatbot básico
+
+```
+Webhook -> LLM Chat -> Memory Buffer -> Agent -> Resposta
+```
+
+### RAG
+
+```
+Documentos -> Embeddings -> Vector Store -> Query -> Retriever -> LLM
+```
+
+```js
+mcp__n8n__validate_node({
+  nodeType: "@n8n/n8n-nodes-langchain.vectorStoreSupabase",
+  config: { mode: "insert", tableName: "documents", queryName: "match_documents" },
+  mode: "minimal"
+})
+```
+
+### AI Agent com tools
+
+```js
+mcp__n8n__validate_node({
+  nodeType: "@n8n/n8n-nodes-langchain.agent",
+  config: { agentType: "conversationalAgent", systemMessage: "Tu és um assistente prestável...", options: { returnIntermediateSteps: true } },
+  mode: "minimal"
+})
+```
+
+### Exemplos práticos
+
+- Suporte: Webhook -> Memory Postgres -> Vector Store -> Chain Retrieval QA -> Webhook Response.
+- Agent CRM: Webhook -> Agent (tools: pesquisar/criar lead/actualizar tarefa) -> Slack.
+- Resumo PDFs: Webhook -> PDF Extract -> Text Splitter -> LLM Chain -> Email.
+
+### Credenciais
+
+OpenAI/Anthropic (API Key), Supabase (URL+Key), Pinecone (API Key).
+
+### Boas práticas
+
+System prompt claro | temperatura 0.1-0.3 | memória limitada | retry on error | logs de conversas.
+
+### Troubleshooting
+
+Inconsistente (baixar temperatura), contexto perdido (memória), RAG vazio (embeddings), timeout (limite), token limit (resumir).
+
+---
+
+## Templates
+
+```js
+mcp__n8n__search_templates({ searchMode: "by_task", task: "ai_automation" })
+mcp__n8n__search_templates({ searchMode: "keyword", query: "chatbot langchain openai" })
+```
+
+---
+
+**Versão:** 2.0.0 (consolidação 6->1, 07-04-2026) | **Autor:** Descomplicar®
+
+## Healing Log
+
+```jsonl
+{"date":"","issue":"","fix":"","source":"user|auto"}
+```