Agent Architecture: Planner → Executor → Verifier – Adding a “Quality Inspector” to Your AI

This article introduces the PEV (Planner‑Executor‑Verifier) architecture, explains why AI agents need a verification step to avoid blindly trusting faulty tool outputs, demonstrates a full implementation with LangGraph, compares its robustness to a naïve baseline, and discusses its advantages, limitations, and suitable use cases.

AI agentsLLMLangGraph

0 likes · 23 min read

Agent Architecture: Planner → Executor → Verifier – Adding a “Quality Inspector” to Your AI

BirdNest Tech Talk

Dec 8, 2025 · Artificial Intelligence

How the New PEV Agent Pattern Boosts Reliable LLM Automation in Go

The article introduces the Plan‑Execute‑Verify (PEV) agent pattern added to langgraphgo, explains its three‑stage workflow, core features, configuration, concrete Go examples, implementation details, comparisons with ReAct and Reflection, and discusses best practices, limitations, and trade‑offs for high‑risk automation.

GoLLM AgentsLangGraphGo

0 likes · 9 min read

How the New PEV Agent Pattern Boosts Reliable LLM Automation in Go