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DEV Community • 2026-08-13 18:21

Holehe Alternative in 2026: Modern OSINT Email & Username Intelligence with user-scanner

When mapping digital footprints, security analysts and open-source intelligence (OSINT) practitioners rely heavily on registration checkers. For years, single-purpose utilities like Holehe were the industry standard for checking email recovery endpoints. However, modern target profiling requires deeper correlation, higher concurrency, and cross-platform pivoting across both emails and usernames. ...

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Hacker News • 2026-08-13 18:18

Show HN: LymeScribe – one computer on your network transcribes for the rest

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DEV Community • 2026-08-13 18:17

Auto mode is now Claude Code's default: what the classifier approves, and how to switch back

Starting today — August 14, 2026 — auto mode is the default permission mode for new Claude Code sessions on Pro, Max, and Team plans. If you've never touched your permission settings, your next session starts with a one-time switch prompt, and after that Claude runs most actions without asking you first. That's a real behavior change, not a UI tweak. This post covers what the classifier actually ...

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DEV Community • 2026-08-13 18:15

I Benchmarked My Homelab Memory Stack: Hybrid Search + Local Reranker Took LoCoMo from 63% to 80%

Pure vector search got my agent memory stack to 63% on LoCoMo. Adding a sparse retriever and a reranker that runs on a card I already owned pushed it to 80%. The accuracy came from a stage that adds maybe 40ms per query, and the queries it fixed were exactly the ones I cared about: specific dates, error codes, and "who said what in which session" needles buried in months of conversation history. ...

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DEV Community • 2026-08-13 18:15

OpenAI’s GPT-5.6 Lineup Expands Across ChatGPT, Codex, and the API

OpenAI has publicly introduced the GPT-5.6 family, a lineup consisting of Sol, Terra, and Luna that is available across ChatGPT, Codex, and the OpenAI API. The release is more significant than a single model update: it positions GPT-5.6 as a multi-flavor offering whose availability can expand as OpenAI adds capacity. The core announcement is documented on OpenAI’s official GPT-5.6 page, alongside...

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DEV Community • 2026-08-13 18:14

You loved my markdown previewer, so I’m giving it a major upgrade.

Building a smooth, lovely experience isn’t just about rich text rendering—it’s about ensuring the database layer under the hood is as fast, flexible, and bulletproof as possible. Here is a full breakdown of the core backend updates implemented in this release, covering everything from atomic database operations to user-customizable UI settings. 1. Migrating from Manual Rollbacks to ...

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Hacker News • 2026-08-13 18:13

Show HN: OpenCode Senses, An insanely fast and highly accurate vision plugin

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DEV Community • 2026-08-13 18:13

Build a Secure Node.js AI API Gateway

🚀 Technical Briefing: This tutorial is part of our deep-dive series on Agentic Workflows at Gate of AI. For the full technical breakdown, interactive code sandbox, and the native Arabic translation, visit the original article here. <p>Build a small Node.js AI API gateway that accepts validated JSON, assigns request IDs, applies a local per-client limit, and forwards approved work to a ser...

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DEV Community • 2026-08-13 18:13

Detecting SQLite Full Table Scans in Node.js

Back in July, Aaron Patterson wrote about detecting full table scans with SQLite. The trick is that you don't need EXPLAIN QUERY PLAN for this. SQLite already keeps a per-statement counter of how many rows it walked during a scan, and you can read it after the query runs. If the number is greater than zero, that statement scanned. One day later, Kevin Gibbons opened an issue on nodejs/node asking...

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Hacker News: Front Page • 2026-08-13 18:10

Accelerating GPT-5.6 Sol Ultrafast

Article URL: https://www.cerebras.ai/blog/accelerating-gpt-5-6-sol-ultrafast-with-openai Comments URL: https://news.ycombinator.com/item?id=49289844 Points: 16 # Comments: 0

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DEV Community • 2026-08-13 18:08

RAG - Memory Systems

We need memory to store the previous conversational history. For example: Previous question is: User: File handling in Python Assistant: Explain about file handling. Next time, the user asks: User: What are the modes in it? The LLM should understand the context and then respond. Below are the details that can be stored in the memory. Past Conversations User Preferences that we specif...

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DEV Community • 2026-08-13 18:08

I Built an Open-Source project. It Became the Official MailChannels JS SDK

How an independent open-source project grew into a full TypeScript SDK and was eventually adopted by MailChannels. Sometimes, open-source projects start with a very small problem. You build something because you need it yourself, publish it because you think someone else might find it useful, and then keep improving it simply because you enjoy building software. That was the story behind mailch...

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DEV Community • 2026-08-13 18:08

Build a Governance-Aware AI Sandbox with Node.js

🚀 Technical Briefing: This tutorial is part of our deep-dive series on Agentic Workflows at Gate of AI. For the full technical breakdown, interactive code sandbox, and the native Arabic translation, visit the original article here. <span>Tutorial</span> <span>Advanced</span> <span>⏱ 120 min read</span> <span>© Gate of AI 2026-07-30</span> Lear...

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DEV Community • 2026-08-13 18:08

FastAPI Mistral Ticket Router: Safe GCC Guide

🚀 Technical Briefing: This tutorial is part of our deep-dive series on Agentic Workflows at Gate of AI. For the full technical breakdown, interactive code sandbox, and the native Arabic translation, visit the original article here. Build a secure FastAPI ticket-routing foundation with strict request validation, deterministic escalation policies, SQLite audit records, and a safe integration boun...

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DEV Community • 2026-08-13 18:08

Python OpenAI Structured JSON Tutorial

🚀 Technical Briefing: This tutorial is part of our deep-dive series on Agentic Workflows at Gate of AI. For the full technical breakdown, interactive code sandbox, and the native Arabic translation, visit the original article here. Tutorial Python Structured JSON Extraction with OpenAI Build a Python command-line tool that loads travel-journal files, requests JSON-shaped extraction from an Op...

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𝚓𝚊𝚟𝚊𝚜𝚌𝚛𝚒𝚙𝚝 • 2026-08-13 18:05

[AskJS] Ho ritrovato questo vecchio snippet per un rullo 3D in CSS/JS puro: niente di complesso, ma a me fa ancora impazzire!

<div class="container-rullo"> <div class="rullo-3d" id="rullo"> <div class="item" style="--i:0;"><a href=""><img src=""></a></div> <div class="item" style="--i:1;"><a href=""><img src=""></a></div> <div class="...

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Hacker News • 2026-08-13 18:03

Show HN: TasmoShelf – local-first iOS/Android app for Tasmota devices

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DEV Community • 2026-08-13 18:02

1.Setting up my first Linux server on a Mac, and the scary messages that are actually fine

TL;DR I set up a real Ubuntu Server VM on an Apple Silicon Mac using UTM, as step one toward platform engineering. The setup is short. The confusing part is a few messages that look like errors but are normal. This post explains what each one means, so you don't get stuck where I almost did. I'm a senior software engineer, and I'm moving toward platform and cloud engineering. Almost everything...

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DEV Community • 2026-08-13 18:01

Internal vs. External Documentation: What Belongs Where

Originally published at https://ninadpathak.com/articles/internal-vs-external-documentation/. Internal documentation helps your team operate the system. External documentation helps customers, partners, and public developers use the supported product. When both tasks exist, publish a public task page and keep a separate private operating record. Classify each subject as internal, external, or ...

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DEV Community • 2026-08-13 18:00

From Prompts to Infrastructure: Building Trustworthy, Scalable AI Agents in the Age of A2A and Agent Sandboxes

Originally published on tamiz.pro. The naive image of an AI agent is a chatbot that gets smarter each turn. The production reality is far more demanding: agents that coordinate across services, respect security boundaries, follow standardized communication contracts, and survive unbounded request volume. The shift from prompts to infrastructure isn't philosophical — it's a hard engineering transi...

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