LangGraph Production Guides

Comparison showing LangGraph ToolNode sync execution limiting max concurrency to one while async execution starts four tools - XBSTACK

LangGraph ToolNode Ignores max_concurrency in Async Execution: Reproduction and Workaround

LangGraph 1.2.10 ToolNode max_concurrency reproduction: sync invoke respects limits while async ainv

Langgraph

2026-08-04

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6 min

Experiment showing a LangGraph streaming UI ahead of the authoritative SQLite checkpoint after cancellation - XBSTACK

LangGraph State Lost After Cancel: Why Streaming Output Disappears After Stop

LangGraph state lost after cancel or Stop? A LangGraph 1.2.9 experiment shows why streamed output ca

Ai

2026-07-30

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15 min

AI Agent Protocol and Framework Selection: How to Choose Between MCP, Function Calling, A2A, LangGraph, AutoGen, and CrewAI?

AI Agent Protocol and Framework Selection: A systematic overview of protocol and framework selection

Ai

2026-06-25

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12 min

LangGraph Subgraph in Practice: Designing Subgraphs, Worker State, and Local State for Multi-Agent Systems

LangGraph Subgraph in Practice: A practical guide to LangGraph subgraph design, covering parent-chil

Ai

2026-06-16

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13 min

LangGraph Checkpointer in Practice: How to Choose Between MemorySaver, SQLite, and Redis

LangGraph Checkpointer in Practice: A practical guide to selecting a state persistence strategy for

Ai

2026-06-15

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15 min

LangGraph Multi-Agent Failure Recovery: Tool Errors, Timeouts, and Retry Strategies - XBSTACK

LangGraph Failure Recovery: Tool Errors, Timeouts, Retry, and error_handler

LangGraph error_handler exception recovery in 1.2.11: reproduce re-raises in custom/messages streams

Ai

2026-06-13

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15 min

LangGraph Human-in-the-Loop in Practice: How to Build a Multi-Agent Approval Workflow

LangGraph Human-in-the-Loop in Practice: A hands-on guide to designing Human-in-the-Loop approval wo

Ai

2026-06-12

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11 min

LangGraph State Isolation in Practice: Designing thread_id, session_id, and user_id

LangGraph State Isolation in Practice: A practical guide to state isolation design in multi-user Age

Ai

2026-06-11

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9 min

LangGraph Multi-Agent Collaboration in Practice: Designing Supervisor, Worker, and State Handoff

Design a LangGraph Supervisor/Worker system with bounded handoffs, shared state, thread_id isolation

Ai

2026-06-10

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11 min

LangGraph Memory and Checkpointing for Production AI Agents - XBSTACK

LangGraph Memory and Checkpointing: How Production-Grade AI Agents Save, Restore, and Audit State

Use LangGraph Memory and Checkpointing for thread-scoped state, restoration, checkpoint history, Hum

Dev

2026-06-01

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11 min

Practical Guide to AI Invoice Approval Agents: Parsing, Duplicate Detection, Approval Matrices, and Pre-Payment Controls - XBSTACK

How to Build an AI Invoice Approval Agent: OCR to ERP

Build an AI invoice approval agent with OCR, vendor and bank validation, duplicate and PO checks, ap

Ai

2026-05-18

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12 min

LangChain vs CrewAI: 2026 AI agent framework comparison - XBSTACK

LangChain vs CrewAI in 2026: Which AI Agent Framework Should You Use?

LangChain vs CrewAI in 2026: compare create_agent + LangGraph with CrewAI Crews/Flows across agent A

Langgraph

2026-05-16

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4 min

CrewAI vs LangGraph: 2026 AI agent orchestration comparison - XBSTACK

CrewAI vs LangGraph in 2026: Which Agent Orchestration Model Fits?

CrewAI vs LangGraph in 2026: compare Crews/Flows with durable execution, state, checkpointers, inter

Langgraph

2026-05-15

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5 min

AI Lead Scoring Agent in Practice: Intent Recognition, Lead Scoring, CRM Routing, and Sales Feedback Loop

AI Lead Scoring Agent in Practice: A breakdown of production-grade design for an AI Lead Scoring Age

Ai

2026-05-15

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11 min

Practical Guide to AI Expense Tracking Agents: Bill Categorization, Subscription Detection, Anomaly Identification, and Budget Reviews

Practical Guide to AI Expense Tracking Agents: A systematic breakdown of production-grade design met

Ai

2026-05-13

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12 min

Practical Guide to AI Customer Feedback Agents: Topic Clustering, Sentiment & Root Cause Identification, Priority Routing, and Closed-Loop Review

Practical Guide to AI Customer Feedback Agents: A systematic breakdown of production-grade design fo

Ai

2026-05-08

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11 min

LangChain v1 agent architecture with create_agent, middleware, memory and human-in-the-loop - XBSTACK

LangChain v1 Tutorial: Build Agents with create_agent, Middleware, Memory, and HITL

Build a LangChain v1 agent with create_agent, middleware, memory, runtime context and HITL, replacin

Ai

2026-04-25

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4 min

AI Agent Framework Guide 2026: LangGraph, AI SDK 7, Google ADK, and Microsoft Agent Framework: AI AGENT ENGINEERING article cover - XBSTACK

AI Agent Frameworks 2026: LangGraph vs Google ADK vs Microsoft Agent Framework vs AI SDK 7

Compare LangGraph, Google ADK 2.x, AI SDK 7 and Microsoft Agent Framework by state, HITL, workflows,

Ai

2026-04-24

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14 min

LangGraph in Practice: Controlling Agent Workflows with State Machines, Checkpoints, and Human-in-the-Loop

LangGraph in Practice: A systematic breakdown of LangGraph's design patterns for production-grade AI

Workflow

2026-04-24

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9 min

Multi-Agent Systems in Practice: Architectural Boundaries, State Handoffs, and Failure Control

Design Multi-Agent Systems with Supervisor-Worker, Planner-Executor, Critic-Reviewer, state handoffs

Ai

2026-04-24

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11 min

2026 AI Agent Development Handbook: Protocol Selection, Tool Calling, State Management, and Multi-Agent Deployment Checklist

2026 AI Agent Development Handbook: A comprehensive guide for developers on implementing 2026 AI Age

Ai

2026-04-12

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9 min

Practical Guide to RAG Agent Error-Correction Loops: Retrieval Validation, Answer Auditing, and LangGraph State Rollback

Build RAG Agent error-correction loops with retrieval validation, query rewriting, citation checking

Ai

2026-01-19

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11 min

LangGraph for Stateful Agent Workflows

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Related Resources

LangGraph ToolNode Ignores max_concurrency in Async Execution: Reproduction and Workaround

LangGraph State Lost After Cancel: Why Streaming Output Disappears After Stop

AI Agent Protocol and Framework Selection: How to Choose Between MCP, Function Calling, A2A, LangGraph, AutoGen, and CrewAI?

LangGraph Subgraph in Practice: Designing Subgraphs, Worker State, and Local State for Multi-Agent Systems

LangGraph Checkpointer in Practice: How to Choose Between MemorySaver, SQLite, and Redis

LangGraph Failure Recovery: Tool Errors, Timeouts, Retry, and error_handler

LangGraph Human-in-the-Loop in Practice: How to Build a Multi-Agent Approval Workflow

LangGraph State Isolation in Practice: Designing thread_id, session_id, and user_id

LangGraph Multi-Agent Collaboration in Practice: Designing Supervisor, Worker, and State Handoff

LangGraph Memory and Checkpointing: How Production-Grade AI Agents Save, Restore, and Audit State

How to Build an AI Invoice Approval Agent: OCR to ERP

LangChain vs CrewAI in 2026: Which AI Agent Framework Should You Use?

CrewAI vs LangGraph in 2026: Which Agent Orchestration Model Fits?

AI Lead Scoring Agent in Practice: Intent Recognition, Lead Scoring, CRM Routing, and Sales Feedback Loop

Practical Guide to AI Expense Tracking Agents: Bill Categorization, Subscription Detection, Anomaly Identification, and Budget Reviews

Practical Guide to AI Customer Feedback Agents: Topic Clustering, Sentiment & Root Cause Identification, Priority Routing, and Closed-Loop Review

LangChain v1 Tutorial: Build Agents with create_agent, Middleware, Memory, and HITL

AI Agent Frameworks 2026: LangGraph vs Google ADK vs Microsoft Agent Framework vs AI SDK 7

LangGraph in Practice: Controlling Agent Workflows with State Machines, Checkpoints, and Human-in-the-Loop

Multi-Agent Systems in Practice: Architectural Boundaries, State Handoffs, and Failure Control

2026 AI Agent Development Handbook: Protocol Selection, Tool Calling, State Management, and Multi-Agent Deployment Checklist

Practical Guide to RAG Agent Error-Correction Loops: Retrieval Validation, Answer Auditing, and LangGraph State Rollback