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dify-feature.md

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+# Tính năng chính của Dify — Tóm tắt
+
+## 1. App Studio
+- Builder kéo-thả, prompt template, connectors, test playground.
+- Dùng cho chatbot, agent, text-to-SQL, RAG.
+
+## 2. Workflow Orchestration
+- Triggers (HTTP/webhook/schedule), nhiều bước, retry/backoff, state.
+- Dùng cho ETL, automation, agent workflows.
+
+## 3. Model Management
+- Quản lý provider, routing/fallback, temperature, token limits.
+- Lưu ý: key rotation, rate limits.
+
+## 4. Dataset & Knowledge Base (RAG)
+- Ingest → chunk → embed → vector-store → retriever.
+- Lưu ý: reindex khi cập nhật, xử lý PII.
+
+## 5. Observability & Monitoring
+- Logs, token usage, latency, error traces, replay requests.
+
+## 6. Integration & Extension
+- API/SDK, webhooks, connectors (Slack/DB/S3), custom actions.
+
+## 7. Security & Governance
+- API keys, RBAC, audit logs, rate limiting.
+
+## 8. Deployment & Ops
+- Docker Compose / Kubernetes, volumes, backup DB, migrations.