📦 Dataclasses for Structured Application Data

🦾Plus: 🕸️ OpenAI’s agents apparently took over a German wiki

Sponsored by

Hey folks! Let’s get into Big Data and AI craziness…

In today's edition: Here is roundup of eval engineering, R Packages, Claude Code mistakes 👇

  • 🌳Plot a pedigree in R: seven packages, each built for a different job

  • 🧪6 ways to test agents with eval engineering (by Google)

  • 💻How to avoid the 19 Claude Code mistakes pros still make

  • 🐦 A Judge Ruled X Likely Abandoned the 'Tweet' Trademark

  • 💡 AI Tutorial:How to let Claude complete tasks on your computer

  • 🤖AI Tools and Data Tools to checkout

In this article, you will learn how Python’s dataclass decorator can replace fragile configuration dictionaries with structured, readable, and maintainable data models. Topics we will cover include: How to build and compose dataclasses for real application configurations, including handling mutable defaults and nested records. How to enforce local invariants at construction time using __post_init__, and how to express immutability with frozen=True.

How AI-Era Pricing Is Reshaping Finance Operations

Usage-based and hybrid pricing models are changing how B2B companies generate revenue — and creating new headaches for the finance teams behind them.

Tabs co-founder Rebecca Schwartz and PwC Partner Amit Dhir sat down to unpack exactly what that means in practice: how pricing model decisions ripple into revenue recognition, forecasting, and financial ops — and what it takes to scale without piling on manual work.

Watch the on-demand recording to get practical frameworks, real-world examples, and a clear path to operationalizing usage-based revenue — including a forward-looking take on how AI will reshape financial workflows. If your team is navigating pricing complexity heading into the back half of the year, this is worth an hour.

Autonomous penetration testing is becoming one of the most important changes in offensive security. Security teams are no longer looking only for tools that detect vulnerabilities. They need platforms that can reason through attack paths, validate exploitability, reduce false positives, and help teams understand what an attacker could actually do.

Seven R packages can plot a pedigree — kinship2, Pedixplorer, ggpedigree, pedtricks, optiSel, purgeR and visPedigree. We run the same breeding pedigree through each of them, time the results, and show which one fits which workflow…

🚀 Dive into the World of Machine Learning System Design! 🌐How do companies like Netflix, Airbnb, and Doordash apply machine learning to improve their products and processes? We put together a database of 800 case studies from 100 companies that share practical ML use cases and learnings from designing ML systems.

This cookbook teaches you how to test AI agents before you put them in production. It gives six methods to check structure, facts, tool order, quality scores, model changes, and known cases. You can use these methods as automated tests in your build process.

In this tutorial, you'll learn how to sharpen your prompting, keep token costs down, and set up autonomous workflows. By skipping these common traps, you'll create an AI dev environment that's way more efficient, reliable, and easy on your wallet.

The Future of AI in Marketing. Your Shortcut to Smarter, Faster Marketing.

This guide distills 10 AI strategies from industry leaders that are transforming marketing.

  • Learn how HubSpot's engineering team achieved 15-20% productivity gains with AI

  • Learn how AI-driven emails achieved 94% higher conversion rates

  • Discover 7 ways to enhance your marketing strategy with AI.

👨‍💻 Data Tools, Libraries

Minio - See Databricks query on-prem Iceberg and Delta tables live. It's the kind of integration that made Databricks name MinIO its ISV Storage Partner of the Year. See it in action in the demo.

Moyai - Stop guessing if your agents are failing and start monitoring them for failures. We surface agent failures by looking for behavioural anomalies your your agent traces and classify failures with RCA and remediation steps.

herdr (GitHub Repo)

herdr is an agent multiplexer that lives in the terminal. It gives users a view of every agent at a glance. Agents keep running even when users are detached, and sessions survive restarts.

AI News:

OpenAI's agents apparently found a 25-year-old German forum and treated it like a group chat. Researchers say agents carrying OpenAI identifiers spent over a month on the DSE Wiki trading tips on beating timed web-search tests, then fought the human moderator by spinning up roughly 400 pages a day against his 100 daily deletions. The lab reportedly had no idea until the activity stopped on June 22.

10x the context. Half the time.

Speak your prompts into ChatGPT or Claude and get detailed, paste-ready input that actually gives you useful output. Wispr Flow captures what you'd cut when typing. Free on Mac, Windows, and iPhone.

X got half of what it asked for, which is more than the bird got. A Delaware judge blocked startup Operation Bluebird from using the Twitter name and eight related marks on Friday, but refused to shield 'Tweet' or the bird logo, finding X had likely abandoned both. The startup promptly relaunched as Tweet.app, where 172,000 people had already requested handles at $20 a reservation.

The CD, of all things, is having a year. RIAA figures show US CD revenue climbed 58.6% in the first half of 2026 to $171.1 million, on 17.5 million discs sold, up 45.7%... after revenue slid 7.8% across all of 2025. Vinyl rose 17.7%, and physical media overall reached $731.5 million. Gen Z reportedly wants tech it can actually hold.

Tesla spent two years teasing a car with no steering wheel, and regulators needed about three hours to start asking questions. NHTSA opened an investigation Friday into the process and technical data Tesla leaned on to self-certify the Cybercab against federal motor vehicle safety standards... the ones that still require manual controls. The first production Cybercabs began carrying passengers in Austin that same morning.

We’re kicking off a multi-year partnership with Beast Industries that extends our relationship beyond YouTube to Gemini and Google Health. As the first creator to reach 500 million YouTube subscribers, Jimmy Donaldson, better known as MrBeast, is always pushing the boundaries of what’s possible.

AI Tutorial

How to let Claude complete tasks on your computer

Source: Claude

  • Download the latest version of the Claude desktop app.

  • Open the app and go to Settings > General.

  • Find the ‘Enable computer’ use toggle and turn it on.

  • Open Cowork or Claude Code in the desktop app and start a session.

  • Ask Claude to do something that involves an app on your computer. Claude will ask for permission to access the app before proceeding.

Sample Prompt: “Use the competitor files in my Downloads folder on my computer and relevant connected tools to compare their positioning, pricing, features, strengths, and weaknesses. Compile the findings into a polished report with a comparison table and key recommendations.”

Vultr makes it easier to get self-hosted agents running without the usual setup work. Deploy OpenClaw & Hermes Agent from the Vultr Marketplace in one click, then let OpenClaw handle recurring research and scheduled tasks while Hermes Agent keeps memory across sessions & builds new skills over time.

Jobs:

This week's Data & Analytics jobs: I have updated my curated list with fresh openings. Browse and apply in one click: jobs

Machine Learning Engineer – Hybrid – Boston

🔥Top AI tools to increase productivity: 

  1. Archie: AI social content that sounds link you 

  2. Alice - A native app that offers fast and reliable experience with models (OpenAI, Perplexity, Claude and more)

  3. Linktopia - Community link-building for bloggers, entrepreneurs and startup brands to grow  

  4. VerifactAI is an AI fact-checking tool that allows you to fact-check your articles within a minute.

  5. Undress AI Tool is a website that offers a deepnude application, allowing users to create modified images

  6. Screenloop is the ultimate Talent Operations Platform, seamlessly integrating a next-gen ATS

  7. Postlyy - All in one platform to create, schedule, and analyze content on X and LinkedIn

  8. AirRankPilot helps local businesses get discovered by Google and AI tools like ChatGPT and Perplexity

View our database of all the best AI tools for your needs: aitoolsup.com

Have cool resources to share? Submit AI tool

A.I. Generated Image of the Day

👀 a synthesis of a huge fantasy art collection

AI Tools Up NewsletterReceive a weekly email with updates on new AI tools, helpful prompts, and the latest AI developments. Join over 20000 + professionals from Google, OpenAI, Notion, Apple, and more.

SPONSOR US:

Get your product in front of Big Data & AI enthusiasts

😮 The Marketing Channel You've Probably Slept On:

Haven't tried newsletter sponsorships yet? You are missing out on a HUGE ROI+ customer acquisition channel. I know because dozens of advertisers keep coming back for more... Run a test campaign with us and see for yourself 👉 Get in touch today.

What did you think of today's email?

Your feedback helps me create better emails for you!

Login or Subscribe to participate in polls.