DAS Agent
Interact with Alibaba Cloud DAS (Database Autonomy Service) Agent API to execute database operations using natural language.
Prerequisites
The following environment variables must be configured before use:
# Alibaba Cloud AccessKey (requires AliyunHDMFullAccess permission)
export ALIBABA_CLOUD_ACCESS_KEY_ID="your_access_key_id"
export ALIBABA_CLOUD_ACCESS_KEY_SECRET="your_access_key_secret"
# DAS Agent ID (obtain from DAS console)
export ALIBABA_CLOUD_DAS_AGENT_ID="your_agent_id"Verify environment variables are configured:
echo $ALIBABA_CLOUD_ACCESS_KEY_ID
echo $ALIBABA_CLOUD_DAS_AGENT_IDEnsure uv is installed:
which uv # Confirm uv is installedUsage
Command Line Execution
# Navigate to the das-agent skill directory
cd das-agent
# Basic invocation - single turn conversation
uv run call_das_agent.py --question "Check instance rm-12345 status"
# Verbose output mode
uv run call_das_agent.py --question "View slow queries" -v
# Multi-turn conversation with session ID (must be UUID format)
# Generate UUID first
uuidgen # Suppose it returns fake-uuid
# Invoke with session ID
uv run call_das_agent.py --question "View slow queries" --session "fake-uuid"
# Follow-up question
uv run call_das_agent.py --question "Analyze the cause of slow query xxx in detail" --session "fake-uuid"Response Handling
DAS Agent returns SSE streaming responses. Parse the Delta field from TEXT_MESSAGE_CONTENT events to extract actual text content.
Common Use Cases
| Scenario | Example Query |
|---|---|
| Instance Status Query | "Check CPU and memory usage for instance rm-12345" |
| Performance Analysis | "Analyze database performance over the past 1 hour" |
| Slow SQL Diagnostics | "View slow queries from the last 24 hours" |
| SQL Optimization Recommendations | "Help me optimize this SQL..." |
| Space Analysis | "View database instance space usage" |
| Health Check | "Perform comprehensive health check on instance" |
Error Handling
Error -1810006: Agent Not Associated with Instance
If you encounter this error:
[错误 -1810006] the das agent or default is not associated with any instanceIt means the DAS Agent has not been associated with any database instance. To resolve:
- Open Alibaba Cloud DAS Console: https://das.console.aliyun.com/?aes_debug=#/das-agent?currentView=settings
- Find your DAS Agent
- Associate it with at least one database instance (RDS, PolarDB, etc.)
After enrollment, the Agent will be able to respond to queries.
Important Notes
- Long-Running Tasks: DAS Agent can perform long-running operations like multi-instance inspections, comprehensive diagnostics, or batch SQL analysis. These tasks may take up to 30 minutes. Inform the user before starting: "正在执行数据库巡检，这是一个长程任务，可能需要几分钟到半小时。我会持续监控进度并在完成后通知你。"
- Progress Updates: DAS Agent streams progress during execution. You can check intermediate results and update the user periodically. Use phrases like: "正在分析实例 X 的慢 SQL..." "已完成 3/5 个实例的检查..."
- Agent Enrollment: Ensure the target database instance is enrolled under the DAS Agent.
- Permissions: AccessKey requires AliyunHDMFullAccess permission.
- Timeout: Default timeout is 5 minutes; complex queries may require longer wait times.
- Pricing: DAS Agent is free during public beta; charges may apply after general availability.
Documentation
- Invocation Script: call_das_agent.py
- Dependencies: pyproject.toml
- API Signature Algorithm: reference.md