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WRITING EFFECTIVE TOOLS FOR AI AGENTS—USING AI AGENTS

Anthropic goes over best practices for developing effective tools for AI agents like Claude, focusing on iterative prototyping, evaluation using the Model Context Protocol, and optimizing tool design and descriptions for agent usability and token efficiency.

2025.09.19
anthropic.com8 min readTLDR Web Dev

Sponsored

When the former Zillow exec who sold his first company for $120m starts a new venture, people notice. _Thousands_ of people. In fact, 12,000+ regular investors have already joined the early investors behind Uber, eBay, and Venmo as Pacaso shareholders.

2025.09.18
invest.pacaso.comSponsorTLDR

opportunity ends.

_This is a paid advertisement for Pacaso's Regulation A offering. Please read the offering circular at invest.pacaso.com. Reserving the ticker symbol is not a guarantee that the company will go public. Listing on the Nasdaq is subject to approvals._

2025.09.18
invest.pacaso.comTLDR

META CONNECT 2025: THE 6 BIGGEST ANNOUNCEMENTS

The Meta Ray-Ban Display glasses feature a full-color, high-resolution screen in the right lens that lets wearers view messages, take video calls, read live captions, and more. The display can be controlled with a wristband that allows users to scroll and click using gestures. The glasses offer up to six hours of 'mixed-use' battery life. They will be available starting at $799 in the US on September 30 at Best Buy, LensCrafters, and Ray-Ban stores. More about the new tech and software updates announced by Meta at its annual Connect keynote is available in the article.

2025.09.18
theverge.com5 min readTLDR

CHINESE OFFICIALS URGE FIRMS TO SHUN NVIDIA AI CHIP

China's top cybersecurity regulator has urged big tech companies not to buy Nvidia's RTX Pro 6000 chip, a less-advanced AI chip that the US has allowed Nvidia to sell to Chinese customers. Domestic firms have been encouraged to switch to homegrown hardware. Some Chinese officials view the country's chips as strong alternatives to those Nvidia is allowed to sell in China. China has had trouble ramping up production of its best chips in part because its access to leading-edge components and chip-making equipment has been blocked by the US.

2025.09.18
links.tldrnewsletter.com4 min readTLDR

AXIOM SPACE AIMS FOR ORBIT WITH ITS ORBITAL DATA CENTER NODE

Axiom Space plans to launch two Axiom Orbital Data Center (AxODC) Nodes by the end of 2025, with at least three running by the end of 2027. The nodes will increase computing capacity on the International Space Station. Even if Axiom manages to get the hardware installed in the ISS in the next few years, the complex is due for deorbit by 2030. The company last year published optimistic plans to make its own space station by 2028.

2025.09.18
theregister.com2 min readTLDR

AI-DESIGNED PHAGES

Arc Institute and Stanford University researchers have created the first viable genomes using generative AI. They created 16 bacteriophages using fine-tuned versions of both Evo 1 and Evo 2, models freely available on Hugging Face. Their work offers a blueprint for the design of diverse synthetic bacteriophages and lays a foundation for the generative design of useful living systems at the genome scale. The research may present some risks, but at the moment, using AI to make synthetic genomes costs a great deal at both the design and construction stages and isn't viable for most companies.

2025.09.18
asimov.press19 min readTLDR

Sponsored

SMBS DON'T NEED AN IT STACK

5+ separate tools for IT and security management is way too many. Electric [9] consolidates everything - device management, security policies, employee onboarding -into one platform built specifically for smaller teams. Automated remediation, built-in integrations with your HR tools, and no technical expertise required. Take a demo and

2025.09.18
try.electric.aiSponsorTLDR

UUIDV47

UUIDv47 lets users store sortable UUIDv7 in their databases while emitting a UUIDv4-looking facade at the API boundary. UUIDv7 is time-ordered and is better for index locality and pagination. The facade is indistinguishable from v4, providing security.

2025.09.18
github.comGitHub repositoryTLDR

BORING IS GOOD

Most companies that have tried to implement AI technology have yet to see a positive outcome. Large language models are not intelligent, and they will never be. They aren't good at doing 'intelligent things' and replacing human tasks is far more complex than originally thought. There may be other potential uses for this technology, but the current approach is failing, and something has to change.

2025.09.18
jenson.org8 min readTLDR

AN INTERVIEW WITH YOUTUBE CEO NEAL MOHAN ABOUT BUILDING A STAGE FOR CREATORS

YouTube CEO Neal Mohan joined Google as part of the DoubleClick acquisition in 2007. He moved to YouTube in 2015 to become Chief Product Officer and succeeded Susan Woycicki as CEO in 2023. This interview with Mohan discusses his background, how YouTube wants to use AI to enhance creators, YouTube monetization, the difference between a platform and creators, and the company's attempted takeover of the living room TV. The interview is also available as a podcast.

2025.09.18
stratechery.com57 min readTLDR

INSIDE THE APPLE AUDIO LAB WHERE AIRPODS ARE TESTED AND TUNED

Apple uses a collection of audio metric booths to help correct and calibrate the AirPods' fit for natural variations in ear geometry. Its engineers use devices seen in audiologists' offices to help validate the company's claims of a clinical-grade hearing test. This allows AirPods users to set up their devices as a hearing aid at home and also creates an accurate hearing profile so users can hear music the way it was intended. This article takes a look at the labs where Apple tests and tunes its AirPods, which show how important sound is to everything Apple builds.

2025.09.18
engadget.com8 min readTLDR

_This is a paid advertisement for Pacaso's Regulation A offering. Please read the offering circular at invest.pacaso.com. Reserving the ticker symbol is not a guarantee that the company will go public. Listing on the Nasdaq is subject to approvals._

2025.09.18
invest.pacaso.comTLDR

Sponsored

EMPOWERING EDITORS WITH AI AT THE ECONOMIST

Join this webinar with deepset and The Economist to discover how AI is streamlining research, accelerating publishing workflows, and empowering editors.

2025.09.18
deepset.aiSponsorTLDR

Sponsored

When the former Zillow exec who sold his first company for $120m starts a new venture, people notice. _Thousands_ of people.

2025.09.17
invest.pacaso.comSponsorTLDR

before this opportunity ends on Thursday night.

_This is a paid advertisement for Pacaso's Regulation A offering. Please read the offering circular at invest.pacaso.com. Reserving the ticker symbol is not a guarantee that the company will go public. Listing on the Nasdaq is subject to approvals._

2025.09.17
invest.pacaso.comTLDR

investors.

Disrupting the real estate industry once again, Pacaso's streamlined platform offers co-ownership of premier properties, revamping a $1.3T market.

2025.09.17
invest.pacaso.comTLDR

TIKTOK BUYERS TO INCLUDE ORACLE, SILVER LAKE, AND ANDREESSEN

US President Donald Trump and Chinese President Xi Jinping are set to discuss a deal where TikTok's US operations would be acquired by a consortium that includes Oracle, Andreessen Horowitz, and Silver Lake. The framework would create a US-based version of the app. ByteDance will license the technology behind its recommendation algorithms. Trump has postponed the deadline for ByteDance to divest TikTok's US operations until December 16 to buy time for the transaction to be completed.

2025.09.17
links.tldrnewsletter.com7 min readTLDR

SPACEX IS WORKING WITH CHIP MAKERS FOR STARLINK CELL SERVICE

SpaceX is working with microchip manufacturers to add support for Starlink's satellite-to-cell service into devices. The company plans to launch new satellites that support its direct-to-device business in the next two years. It will conduct mobile phone tests late next year.

2025.09.17
links.tldrnewsletter.com3 min readTLDR

SHOWS

Eli Lilly's weight loss pill, orforglipron, can help people reduce their body weight by as much as a fifth. The drug targets the same GLP-1 receptors as weight loss injections such as Mounjaro and Wegovy. While the weight loss seen in people taking the tablet is not as stark as that seen in those taking injectable forms of the drug, the tablet is significantly more accessible and convenient. Eli Lilly expects substantial demand when the new pill is launched.

2025.09.17
theguardian.com4 min readTLDR

HOW SPACEX TURNED A TEXAS MARSH INTO THE WORLD'S MOST WATCHED SPACEPORT

SpaceX's Starbase, a massive rocket development site and the home of Starship, started as little more than an impossible stretch of empty land along the South Texas coast. The degree of difficulty of transforming the site did not deter Elon Musk, so the company tackled its issues one by one. This article looks at how the company transformed the land into Starbase and the challenges that it overcame along the way.

2025.09.17
spacenews.com9 min readTLDR

Sponsored

BASECAMP — SIMPLE PROJECT MANAGEMENT THAT ACTUALLY WORKS

Most tools are bloated, chaotic, or force you into their way of working. Basecamp cuts the noise: chat, Kanban, docs, and schedules [9] — all in one calm, straightforward space. No hype, no chaos. Just the features you need to get stuff done.

2025.09.17
basecamp.comSponsorTLDR

HOW TECH COMPANIES MEASURE THE IMPACT OF AI ON SOFTWARE DEVELOPMENT

85% of software engineers are using AI coding tools at work, but things like tokens aren't exactly cheap, so companies need to know how to measure whether or not they are worth the money. This article looks at how some tech companies measure AI impact to uncover insights on how to get started in this tricky field. Solid foundations matter. Have an experimental mindset when measuring AI impact.

2025.09.17
newsletter.pragmaticengineer.com48 min readTLDR

IF ALL THE WORLD WERE A MONOREPO

R's central package manager, CRAN, builds each package before publication, testing against a variety of R versions and operating systems. Even if a package passes tests against the full matrix of R versions and platforms, CRAN still reruns the tests for all of the packages that depend on that package. This means some packages can be blocked until dependent packages are upgraded. This approach, which clearly puts a burden on package developers, results in an excellent workflow for R's central user base, who want to spend as much time as possible on the details of data analysis, not stuck in transitive dependency hell.

2025.09.17
jtibs.substack.com10 min readTLDR

JACK MA RETURNS WITH A VENGEANCE TO ‘MAKE ALIBABA GREAT AGAIN'

Jack Ma is now back on Alibaba's campuses and is more directly involved than he's been in half a decade. He had resigned as chairman in 2019 and retreated from the public eye after a speech he made in 2020. The company has been run by two of Ma's longest-serving lieutenants, Joe Tsai and Eddie Wu, since 2023. Signs of Ma's influence can be seen in the company's pivot to artificial intelligence and its declaration of war on e-commerce foes JD and Meituan.

2025.09.17
bloomberg.com11 min readTLDR

MODS REACT AS REDDIT KICKS SOME OF THEM OUT AGAIN: “THIS WILL BREAK THE SITE”

Reddit is rolling out new rules that mean that users will not be able to moderate more than five subreddits with 100,000 monthly visitors. A small number of moderators will be required to leave their posts due to the new rules. Reddit says the change will help enable diverse perspectives and experiences. Moderators will be able to seek exemptions.

2025.09.17
arstechnica.com8 min readTLDR

invested. So did 10k+ regular people. Don't miss your chance.

_Disclaimer: This is a paid advertisement for Pacaso's Regulation A offering. Please read the offering circular at invest.pacaso.com. Reserving the ticker symbol is not a guarantee that the company will go public. Listing on the Nasdaq is subject to approvals._

2025.09.17
invest.pacaso.comTLDR

CHRONON

Chronon is a data platform for serving AI/ML applications that abstracts away the complexity of data computation, allowing users to utilize all of the data within their organizations.

2025.09.17
github.comGitHub repositoryTLDR

YOU WANT TECHNOLOGY WITH WARTS

Every wart used to be a reasonable feature that someone relied on, a testament to the care the maintainers put into backward compatibility.

2025.09.17
entropicthoughts.com3 min readTLDR

THE 14KB PROBLEM

The first burst of data allowed in a TCP connection is about 14 KB of data, so fitting sites within that cap means they can be delivered in a single round trip.

2025.09.17
joeldare.com4 min readTLDR

Sponsored

CRAVING MORE AI IN YOUR INBOX?

TLDR AI is your daily fix of LLMs, GenAI, and deep learning goodness. Same TLDR format. Still free.

2025.09.17
tldr.techSponsorTLDR

THE CREATOR ADVANTAGE

Nobody can take away what you build when you build an audience.

2025.09.17
anthonybatt.com14 min readTLDR

Sponsored

BUILDING TRUST IN THE AI BOOM: JOIN THE VIRTUAL EVENT

In today's AI boom, shipping fast gets attention—but building trust gets results. Startups now face higher expectations earlier than ever, with investors demanding clean financials and enterprise buyers requiring strong security before deals close.

2025.09.17
vanta.comSponsorTLDR AI

OPENAI READIES ORDERS IN CHATGPT FOR NATIVE CHECKOUT AND TRACKING

OpenAI is preparing to introduce a new 'Orders' section in ChatGPT settings that will let users add credit cards directly to ChatGPT for streamlined purchases. The feature will likely benefit frequent ChatGPT users who purchase plugins, digital goods, or services through the platform. OpenAI is also working to bring parental controls to the ChatGPT web interface. The additional checkout and parental controls align with broader industry trends to turn AI chat platforms into daily utilities with payment, safety, and management features built in.

2025.09.17
testingcatalog.com2 min readTLDR AI