Surface Tension – DEV Community

If you press your finger against water, it pushes back. That invisible resistance, surface tension, keeps the liquid whole even when disturbed. Good software has something like it. Some systems hold together when you change them; others leak at the slightest touch. The difference lies in integrity — the way a system manages its side…

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Automate PDF Data Extraction with n8n: Processing 30,000+ Documents Without Breaking a Sweat

Ever stared at a folder with thousands of PDF invoices, resumes, or reports and thought, “There has to be a better way”? Spoiler: there is. At WeSpark Automations, we recently built a PDF data extraction pipeline that processed over 30,000 documents—scanned images, digital PDFs, multi-page forms—and pushed clean, structured data straight into Google Sheets. Zero…

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Master RAG Evaluation with RAGAS

In recent years, Retrieval-Augmented Generation (RAG) has become one of the go-to architectures for enterprises building AI assistants, knowledge search systems, and domain-specific agents. As companies ingest more documents, RAG systems grow complex — with custom retrievers, vector stores, and prompt engineering. To ensure the RAG pipeline performs well and returns results without hallucinations, the…

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Laziness: A Feature, Not A Bug

The Misunderstood Algorithm of Inaction We treat laziness as a moral failing. A character flaw. A sin of willpower to be overcome with brute force, guilt, and motivational quotes. This is a fundamental misunderstanding of the operating system we run on. Laziness isn’t a bug; it’s a feature. It’s a deeply rational, energy-conservation algorithm that…

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Complete Guide: How to Set AI Coding Rules for Roo-Cline (Modes/Rules and more)

Roo-Cline is a fork of Cline that introduces mode-based AI specialization—a paradigm shift from single-behavior assistants to context-aware, permission-restricted agents. Core Innovation: Instead of one AI assistant with broad permissions, Roo-Cline enables multiple specialized modes, each with: Distinct roles (Documentation Writer vs. Code Implementer vs. Security Auditor) Granular tool permissions (read-only vs. full edit access)…

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