ai-agents-task-dependency-batch-tasks-run-simultaneously-without-dependency--3050c35b

THEN Replace flat parallel dispatch with a DAG-based workflow engine. Parse tasks into a dependency graph, topological sort them, and execute only ready steps concurrently. Downstream tasks receive upstream results as context. Use cycle detection to prevent deadlocks.

```python
delegate_task(
    workflow=[
        {"id": "research", "goal": "Research the API", "context": "..."},
        {"id": "backend", "goal": "Implement client", "needs": ["research"]},
        {"id": "frontend", "goal": "Build UI", "needs": ["research"]},
        {"id": "integrate", "goal": "Integration test", "needs": ["backend", "frontend"]}
    ]
)
```