HackerNews

Linux 7.3 Released

Article URL: https://lwn.net/Articles/1101143/ Comments URL: https://news.ycombinator.com/item?id=50149392 Points: 270 # Comments: 122
🌍 Dev.to

State of the MCP Registry, week of 2026-10-19

State of the MCP Registry, week of 2026-10-19 by ka, mcpreflight Every Monday we re-scan the whole official MCP Registry with a read-only check. We send an initialize request, then a tools/list request. We never call a tool, never use a credential, never attempt a payment, and never retry a failing endpoint into apparent health. Everything below is reproducible with one open-source command, and the per-server reports and raw JSON are published. Headline Of 9,991 remote endpoints in the o...
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I pasted the same MCP server into 4 config files. Then I wrote a tool to clean up the mess.

I pasted the same MCP server into 4 config files. Then I wrote a tool to clean up the mess. If you use Claude Desktop, Cursor, VS Code, and Codex side by side, your MCP setup is probably a mess. Mine was. The same filesystem server lived in three different config files. One copy had different args than the others. And one entry pointed at a command I'd uninstalled months ago — a dead link sitting there silently. Editing four JSON/TOML files by hand to fix this is nobody's idea of fun. S...
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Green tests, open doors: the second test suite for agent-written code

Your agent shipped the upload endpoint. The feature works, the demo works, the pull request is tidy. Somewhere inside it, the filename a user uploads is also a path, and nobody tested that. A benchmark published on October 10, 2026 puts a number on how often that happens. The Last Secure Code Benchmark (LSCBench, arXiv:2610.14766) took 150 real vulnerabilities, expanded them into 450 tasks across seven languages, and handed them to six frontier coding agents. The prompts asked only for functi...
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Verifying Base USDC payments without counting refunds or unpaid promises

A platform can show funded , approved , paid , or settled . Those labels are not interchangeable. If your AI agent invoices in USDC, a polished dashboard is not proof that tokens reached your receiving address. An ERC-20 transaction can also contain several transfers, including an outgoing refund in the same transaction. Count the net amount actually received, not the headline transfer or the invoice amount. I recently audited a small live Base USDC micro-payment workflow. The useful e...
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worktree-janitor: clean up the git worktrees your dead agent sessions left behind

If you run multi-session agent fleets, you know this smell: git worktree list scrolling past checkouts nobody owns anymore. A session died, its worktree leaked, and now there are six stale branches with names like fix-thing-3 that nobody dares to delete. Multiply by every fleet run and you get a repo full of ghost worktrees. Ben Newton's worktree claim guard (a session-fleet Mod) proved this is a real problem class: sessions racing over the same worktrees. Guards solve it at creati...
I built a local work queue for Codex and Claude Code
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I built a local work queue for Codex and Claude Code

I had access to five ChatGPT Pro plans and three Claude Pro plans through referral offers. Ten days later, I had spent more time switching accounts and remembering which project I had left open than using the coding allowance. I wanted one place to describe work, let an available tool take the next step, and review what it actually produced. That became Runquay : an MIT-licensed, local work queue for AI coding tools. It launches the official Codex, Claude Code, Gemini CLI, or Antigravity CLI...
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A quest-completion marker needs a persistent state after the animation

This guide was written with AI assistance as part of NixieFX marketing. This is a proposed integration recipe, not a claim of a completed runtime test. A quest marker should still communicate completion after its particles disappear. Treat the effect as a short acknowledgment of a state change, while the completed icon and text remain the authoritative UI. The sequence in this example is deliberately small: update the quest state, show the completed marker immediately, optionally play one ...
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IPv4 Subnetting for Beginners: Step-by-Step Examples and Practice Questions

IPv4 Subnetting for Beginners: Step-by-Step Examples and Practice Questions Introduction IPv4 subnetting is an important networking skill for IT students and people preparing for certifications such as CompTIA Network+ and Cisco CCNA. Subnetting divides an IP address range into smaller networks. It helps network administrators organize devices, manage IP addresses, and design networks efficiently. In this beginner-friendly guide, you’ll learn how to identify a subnet mask, ...
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Your Semantic Cache Has a Health Problem. Nothing Checks It.

Your Semantic Cache Has a Health Problem. Nothing Checks It. Here's the situation: every LLM gateway now ships a semantic cache. GPTCache, LangChain's caches, Redis vector lookup — they all do the same job: store a response, look it up later by embedding similarity, skip a costly LLM call. But they only operate the cache. Store. Lookup. Evict. Nobody diagnoses it. That leaves three silent failure modes running unobserved in production: Cache pollution. A lightly rewritten p...
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Make the Inference Upstream a Swap, Not a Rewrite: A Junior's First Week on a Mobile AI Repo

Your first week on a mobile AI repo usually starts with a task that sounds small: point the app at a different inference backend so you can test without touching production credentials. On a mid-range Android phone in a debug build, with the screen off for thirty seconds and Wi-Fi dropping to LTE mid-request, that "small" task is where juniors either learn the repo or quietly break it. The drill below turns that task into a repeatable swap with evidence, and it fits the first hour, first PR, fir...
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Build and Deploy a FastMCP Server to AWS EKS and Connect It to Claude Code

Model Context Protocol (MCP) lets AI clients connect to tools and external data sources through a consistent interface. Running an MCP server locally is useful during development, but what if you want to host one remotely? In this tutorial, we'll deploy a Python weather MCP server built with FastMCP to Amazon EKS , expose it through a Kubernetes LoadBalancer Service, and connect it to Claude Code and Pydantic AI Agent . What we're building Our application follows this ...
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SPF vs DKIM vs DMARC: What Each One Does published: false

In the SPF vs DKIM vs DMARC comparison, SPF lists who may send your email, DKIM signs each message, and DMARC tells receivers what to do when a check fails. You need all three. Together they stop others from faking your domain and help your mail reach the inbox. SPF vs DKIM vs DMARC at a glance Each record answers a different question. The table shows them side by side. After it, we explain each one in plain words. Record Question it answers Where it lives ...
HackerNews

AI Is Not a Race

Article URL: https://www.nitinpai.in/2026/10/19/ai-is-not-a-race Comments URL: https://news.ycombinator.com/item?id=50148243 Points: 3 # Comments: 2