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Course Outline
LangGraph and Agent Patterns: A Practical Primer
- Graphs versus linear chains: when and why to use each
- Understanding agents, tools, and planner-executor loops
- Hello workflow: building a minimal agentic graph
State, Memory, and Context Passing
- Designing graph state and node interfaces
- Short-term memory versus persisted memory
- Managing context windows, summarization, and rehydration
Branching Logic and Control Flow
- Conditional routing and multi-path decision making
- Handling retries, timeouts, and circuit breakers
- Implementing fallbacks, dead-ends, and recovery nodes
Tool Use and External Integrations
- Function and tool calling from nodes and agents
- Consuming REST APIs and databases from the graph
- Structured output parsing and validation
Retrieval-Augmented Agent Workflows
- Strategies for document ingestion and chunking
- Using embeddings and vector stores with ChromaDB
- Generating grounded responses with citations and safeguards
Evaluation, Debugging, and Observability
- Tracing paths and inspecting node interactions
- Creating golden sets, conducting evaluations, and running regression tests
- Monitoring quality, safety, cost, and latency
Packaging and Delivery
- Serving via FastAPI and managing dependencies
- Versioning graphs and implementing rollback strategies
- Developing operational playbooks and incident response plans
Summary and Next Steps
Requirements
- Working knowledge of Python
- Experience in building LLM applications or prompt chains
- Familiarity with REST APIs and JSON
Audience
- AI engineers
- Product managers
- Developers creating interactive LLM-driven systems
14 Hours
