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📰 Dev.to · Daniel R. Foster

11 articles · Updated every 3 hours · View all reads

All Articles 130,612Blog Posts 135,290Tech Tutorials 33,775Research Papers 25,426News 18,525 ⚡ AI Lessons
Stop Confusing LangChain, LangGraph, and Deep Agents: A Practical Playbook for Building Real AI Systems
Dev.to · Daniel R. Foster 🧠 Large Language Models ⚡ AI Lesson 3mo ago
Stop Confusing LangChain, LangGraph, and Deep Agents: A Practical Playbook for Building Real AI Systems
Stop Confusing LangChain, LangGraph, and Deep Agents: A Practical Playbook for Building Real...
A Small Rollout Plan for Prompt and Model Changes
Dev.to · Daniel R. Foster 🏭 MLOps & LLMOps ⚡ AI Lesson 4mo ago
A Small Rollout Plan for Prompt and Model Changes
A practical rollout plan for prompt, model, and retrieval changes using cohorts, canaries, monitoring, and rollback triggers.
The AI Incident Report Template I Actually Use for Wrong Answers and Tool Failures
Dev.to · Daniel R. Foster 🤖 AI Agents & Automation ⚡ AI Lesson 4mo ago
The AI Incident Report Template I Actually Use for Wrong Answers and Tool Failures
A lightweight incident report template for production AI systems covering wrong answers, tool failures, latency spikes, and cost regressions.
How to Reduce OpenAI Bill Without Hurting Quality: A Practical Audit Framework
Dev.to · Daniel R. Foster 🛠️ AI Tools & Apps ⚡ AI Lesson 4mo ago
How to Reduce OpenAI Bill Without Hurting Quality: A Practical Audit Framework
Most teams try to reduce an OpenAI bill by cutting prompts, lowering max_tokens, or swapping to a...
We Built a Production-Ready Auto-Reply Chatbot (FastAPI + OpenAI + Hybrid Retrieval)
Dev.to · Daniel R. Foster 💻 AI-Assisted Coding ⚡ AI Lesson 5mo ago
We Built a Production-Ready Auto-Reply Chatbot (FastAPI + OpenAI + Hybrid Retrieval)
We Built a Production-Ready Auto-Reply Chatbot (FastAPI + OpenAI + Hybrid Retrieval) Most...
OpenAI Bill Audit in 45 Minutes: Token Spend Decomposition (Retries, Tool Loops, Context Bloat)
Dev.to · Daniel R. Foster 🛠️ AI Tools & Apps ⚡ AI Lesson 5mo ago
OpenAI Bill Audit in 45 Minutes: Token Spend Decomposition (Retries, Tool Loops, Context Bloat)
🧠 Key Idea Stop thinking in terms of cost per request. Instead, measure cost per...
RAG Recall vs Precision: A Practical Diagnostic Guide for Reliable Retrieval
Dev.to · Daniel R. Foster 🔍 RAG & Vector Search ⚡ AI Lesson 5mo ago
RAG Recall vs Precision: A Practical Diagnostic Guide for Reliable Retrieval
Understand the real difference between recall and precision in RAG systems and learn a practical diagnostic framework to fix retrieval failures effectively.