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Course Outline
LangGraph and Agent Patterns: A Practical Overview
- Graphs versus linear chains: when and why to choose
- Agents, tools, and planner-executor loops
- Hello workflow: introducing a minimal agentic graph
State, Memory, and Context Passing
- Designing graph state and node interfaces
- Distinguishing between short-term and 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
- Invoking functions and tools from nodes and agents
- Accessing REST APIs and databases from the graph
- Parsing and validating structured outputs
Retrieval-Augmented Agent Workflows
- Strategies for document ingestion and chunking
- Utilizing embeddings and vector stores with ChromaDB
- Generating grounded responses with citations and safeguards
Evaluation, Debugging, and Observability
- Tracing paths and inspecting node interactions
- Utilizing golden sets, evaluations, and regression tests
- Monitoring quality, safety, and cost/latency
Packaging and Delivery
- Serving with FastAPI and managing dependencies
- Versioning graphs and implementing rollback strategies
- Creating operational playbooks and incident response plans
Summary and Next Steps
Requirements
- Proficiency in Python
- Experience in developing LLM applications or prompt chains
- Familiarity with REST APIs and JSON
Target Audience
- AI Engineers
- Product Managers
- Developers constructing interactive LLM-driven systems
14 Hours
