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# langchain

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EU AI Act + LangChain: What You Actually Need to Build Before August 2026

EU AI Act + LangChain: What You Actually Need to Build Before August 2026

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3 min read
Testing LangChain Agents with Agentest: Mocks, Trajectories, and LLM-as-Judge

Testing LangChain Agents with Agentest: Mocks, Trajectories, and LLM-as-Judge

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8 min read
Your agent's guardrails are suggestions, not enforcement

Your agent's guardrails are suggestions, not enforcement

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4 min read
Sentence Window Retrieval

Sentence Window Retrieval

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4 min read
pen Source Project of the Day (Part 23): PageLM - Open-Source AI Education Platform, Turning Learning Materials into Interactive Resources

pen Source Project of the Day (Part 23): PageLM - Open-Source AI Education Platform, Turning Learning Materials into Interactive Resources

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6 min read
Give Your LangChain or CrewAI Agent 250+ Data Capabilities in 3 Lines of Code

Give Your LangChain or CrewAI Agent 250+ Data Capabilities in 3 Lines of Code

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3 min read
Agentest: Vitest-style e2e testing for AI Agents

Agentest: Vitest-style e2e testing for AI Agents

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5 min read
Waxell vs. LangSmith: When You Need a Control Plane, Not a Dashboard

Waxell vs. LangSmith: When You Need a Control Plane, Not a Dashboard

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8 min read
LangChain Payment Integration: How to Make Your Chain Earn USDC

LangChain Payment Integration: How to Make Your Chain Earn USDC

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2 min read
Dotando a IAs con: V1 Enrich Legal (ETL-D API)

Dotando a IAs con: V1 Enrich Legal (ETL-D API)

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2 min read
How to give your LangChain agent the ability to earn and spend USDC in 10 lines of code

How to give your LangChain agent the ability to earn and spend USDC in 10 lines of code

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3 min read
How I Built an Offline AI Tutor That Actually Understands Textbooks (LFM2 + RAG)

How I Built an Offline AI Tutor That Actually Understands Textbooks (LFM2 + RAG)

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1 min read
How to Add a Stateful Trust Boundary to a LangChain Agent with Omega Walls

How to Add a Stateful Trust Boundary to a LangChain Agent with Omega Walls

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7 min read
cathedral-memory 0.2.0: LangChain memory adapter

cathedral-memory 0.2.0: LangChain memory adapter

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1 min read
How to Add Budget Control to a LangChain Agent

How to Add Budget Control to a LangChain Agent

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5 min read
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