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Handbook.md shows that long policy documents do not reliably govern agents

Abstract page for arXiv paper 2607.25398: HANDBOOK.md: A Benchmark for Long-Context Agentic Instruction Following

278 points

177 comments

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A.I. companies are recruiting electricians and carpenters by the thousands

192 points

237 comments

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A Trampoline

Data scientist and researcher exploring how digital environments shape human behaviour.,I didn’t want to buy a trampoline. It wasn’t the money.

41 points

21 comments

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The coolest use for the Vision Pro

227 points

103 comments

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KOReader

638 points

205 comments

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Superlogical

Building the multiplexer for all work.

450 points

286 comments

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Darktable

273 points

132 comments

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Show HN: CheapFoodMap – A map of good meals under $10

Find cheap food near you — great meals under $10 across the US. Hidden gems, lunch specials, and cheap eats worth the drive, with no ads or sponsored placements.

95 points

113 comments

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Turning a dumb AC unit smart (without losing my security deposit)

TL;DR: DIY home automation is ezpz with nothing more than a stepper motor, an esp32, and a high tolerance for Jank. My rental apartment’s AC unit can only be controlled using these retro-looking analog knob-based controls, mounted right onto the unit. No separate wall-mounted thermostat, no remote control… nothin’ fancy whatsoever. These knobs work… but having to constantly stand up and fiddle with them gets annoying pretty quick. Fortunately, there’s an ‘ol Prilik family saying that goes something like this: “remember son - the hardest problems in life can usually be solved with nothing more than a stepper motor, an esp32, and a dream”1 And sure enough, after dropping ~$15 on parts, waiting

80 points

69 comments

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How to not die by a thousand cuts or how to think about software quality (2023)

Not a weighty meandering 300 page Zen dialogue on Motorcycle Maintenance. Merely a meandering blog post in which one contemplates /Quality/ of software products.

43 points

22 comments

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Document-borne AI worms can self-propagate through Copilot for Word

I would like to thank Microsoft product teams and Microsoft Security Response Center (MSRC) for collaborating with me on this technical analysis and mitigation of the disclosed vulnerabilities. The editorial opinions reflected below are solely the author’s and do not necessarily reflect those of the organizations I collaborated with.

320 points

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Launch HN: Tokenless (YC S26) – Automatic model switching to save money

Tokenless is a model router and drop-in replacement for the OpenAI and Anthropic APIs — the same quality at less than half the cost.

46 points

41 comments

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Commodification of Intelligence: Good, Bad, and Ugly Circular AI Deals

Circular AI deals aren't just bubble behavior: they mirror how commodity industries finance capital-intensive infrastructure. When circular deals are healthy — and when they hide risk.

46 points

25 comments

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Kimi K3-256k

Kimi Code Documentation

289 points

87 comments

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The Rust on ESP Book

A comprehensive guide on using the Rust programming language with Espressif SoCs and modules

110 points

9 comments

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Keychron announces first open-source firmware for gaming mice

The equivalent of keyboard projects QMK and ZMK. - ZGM. That's the name of peripheral manufacturer Keychron's upcoming open-source gaming mouse firmware, ann...

240 points

93 comments

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PgDog (YC P25) Is Hiring

Hey! PgDog is a tiny database startup, based out of SF, with a global team. We’re scaling the world’s most popular database, PostgreSQL. PgDog is in production, used by dozens of companies, large and small. The problem is big, but so is the opportunity, and we’re hiring! About the role The jack of all trades. Rust, Postgres, a bit of infrastructure, networking, distributed systems, and so much more. You’ll build features that will go directly into our customers hands, the day you ship them. With great power comes great responsibility. You’re meticulous, detail-oriented and are not afraid to take calculated risks. You write tests because you want to make sure the thing works, not to check a box. You’re not afraid to run code in production

1 points

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Some thoughts about Anthropic's new cryptanalysis results

Yesterday Anthropic published two new cryptanalysis results, both outputs of Claude Mythos, their (still) unreleased advanced model. The first of these results attacks a signature scheme called HAWK, while the second is an improved attack against reduced-round AES. Anthropic also released a blog post describing the research process that produced these results. A few people…

89 points

50 comments

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Anatomy of a Frontier Lab Agent Intrusion: A Timeline of the July 2026 Incident

We’re on a journey to advance and democratize artificial intelligence through open source and open science.

243 points

128 comments

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Show HN: Open-source engine running Gemma 4 26B in 2 GB RAM on any M-series Mac

Gemma 4 26B-A4B inference in ~2 GB of RAM on any M-series MacBook - drumih/turbo-fieldfare

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On this day

Three children are stabbed to death and 10 other people injured at a dance studio in Southport, England. This incident, coupled with widespread online misinformation, leads to various racially motivated riots across the UK.

2024

Top Stories from Hacker News

Handbook.md shows that long policy documents do not reliably govern agents

A.I. companies are recruiting electricians and carpenters by the thousands

A Trampoline

The coolest use for the Vision Pro

KOReader

Superlogical

Darktable

Show HN: CheapFoodMap – A map of good meals under $10

Turning a dumb AC unit smart (without losing my security deposit)

How to not die by a thousand cuts or how to think about software quality (2023)

Document-borne AI worms can self-propagate through Copilot for Word

Launch HN: Tokenless (YC S26) – Automatic model switching to save money

Commodification of Intelligence: Good, Bad, and Ugly Circular AI Deals

Kimi K3-256k

The Rust on ESP Book

Keychron announces first open-source firmware for gaming mice

PgDog (YC P25) Is Hiring

Some thoughts about Anthropic's new cryptanalysis results

Anatomy of a Frontier Lab Agent Intrusion: A Timeline of the July 2026 Incident

Show HN: Open-source engine running Gemma 4 26B in 2 GB RAM on any M-series Mac

On this day

Three children are stabbed to death and 10 other people injured at a dance studio in Southport, England. This incident, coupled with widespread online misinformation, leads to various racially motivated riots across the UK.

The International Space Station temporarily spins out of control, moving the ISS 45 degrees out of attitude, following an engine malfunction of Russian module Nauka.

The 2019 Altamira prison riot between rival Brazilian drug gangs leaves 62 dead.

The first piece of suspected debris from Malaysia Airlines Flight 370 is discovered on Réunion Island.

Two passenger trains collide in the Swiss municipality of Granges-près-Marnand near Lausanne injuring 25 people.

An overloaded passenger ferry capsizes on the Kasai River in Bandundu Province, Democratic Republic of the Congo, resulting in at least 80 deaths.

Astronomers announce their discovery of the dwarf planet Eris.

The child protection portion of the Communications Decency Act is struck down by a U.S. federal court as too broad.

The Supreme Court of Israel acquits alleged Nazi death camp guard John Demjanjuk of all charges and he is set free.

British Prime Minister Margaret Thatcher and President of France François Mitterrand sign the agreement to build a tunnel under the English Channel (Channel Tunnel).

Prime Minister of India Rajiv Gandhi and President of Sri Lanka J. R. Jayewardene sign the Indo-Sri Lanka Accord on ethnic issues.

Space Shuttle Challenger launches on STS-51-F. The shuttle ends up in a lower orbit than planned due to an engine failure during ascent.

A worldwide television audience of around 750 million people watch the wedding of Charles, Prince of Wales, and Lady Diana Spencer at St Paul's Cathedral in London.

After impeachment on June 21, Abolhassan Banisadr flees with Massoud Rajavi to Paris, in an Iranian Air Force Boeing 707, piloted by Colonel Behzad Moezzi, to form the National Council of Resistance of Iran.

Iran adopts a new "holy" flag after the Islamic Revolution.

In New York City, David Berkowitz (a.k.a. the "Son of Sam") kills one person and seriously wounds another in the first of a series of attacks.

Greeks vote to abolish the monarchy, beginning the first period of the Metapolitefsi.

Driver Roger Williamson is killed during the Dutch Grand Prix, after a suspected tire failure causes his car to pitch into the barriers at high speed.

Two Avianca Douglas DC-3 airliners collide over Colombia, killing 38.

Vietnam War: Off the coast of North Vietnam the USS Forrestal catches on fire in the worst U.S. naval disaster since World War II, killing 134.

During the fourth day of celebrating its 400th anniversary, the city of Caracas, Venezuela is shaken by an earthquake, leaving approximately 500 dead.

Vietnam War: The first 4,000 101st Airborne Division paratroopers arrive in Vietnam, landing at Cam Ranh Bay.

U.S. President Dwight D. Eisenhower signs into law the National Aeronautics and Space Act, which creates the National Aeronautics and Space Administration (NASA).

The International Atomic Energy Agency is established.

Tonight Starring Jack Paar premieres on NBC with Jack Paar beginning the modern day talk show.

Korean War: After four days, the No Gun Ri Massacre ends when the US Army 7th Cavalry Regiment is withdrawn.

Olympic Games: The Games of the XIV Olympiad: After a hiatus of 12 years caused by World War II, the first Summer Olympics to be held since the 1936 Summer Olympics in Berlin, open in London.

- A gas explosion in Harrisonburg, Virginia kills 11 and injures 30.

The BBC Light Programme radio station is launched for mainstream light entertainment and music.

Tongzhou mutiny: In Tongzhou, China, the East Hebei Army attacks Japanese troops and civilians.

Great Depression: In Washington, D.C., troops disperse the last of the "Bonus Army" of World War I veterans using arson, bayonets, sabers, tanks, tear gas, and vomit gas.

Adolf Hitler becomes leader of the National Socialist German Workers' Party.

Construction of the Link River Dam begins as part of the Klamath Reclamation Project.

The Cape Cod Canal opened.

The two-day Slocum massacre commences in Texas, a race riot in which more than 100 African Americans are murdered.

Sir Robert Baden-Powell sets up the Brownsea Island Scout camp in Poole Harbour on the south coast of England. The camp runs from August 1 to August 9 and is regarded as the foundation of the Scouting movement.

Land lottery begins in Oklahoma.

In Italy, King Umberto I of Italy is assassinated by the anarchist Gaetano Bresci. His son, Victor Emmanuel III, 31 years old, succeeds to the throne.

The First Hague Convention is signed.

The Connecticut Valley Railroad opens between Old Saybrook, Connecticut and Hartford, Connecticut in the United States.

American Civil War: Confederate spy Belle Boyd is arrested by Union troops and detained at the Old Capitol Prison in Washington, D.C.

United States and Japan sign the Harris Treaty.

Annibale de Gasparis discovers asteroid 15 Eunomia.

Great Famine of Ireland: Tipperary Revolt: In County Tipperary, Ireland, then in the United Kingdom, an unsuccessful nationalist revolt against British rule is put down by police.

Inauguration of the Arc de Triomphe in Paris, France.

An Egyptian army under Ibrahim Pascha defeats a larger Ottoman army in the battle of Belen Pass.

French physicist Augustin Fresnel submits his prizewinning "Memoir on the Diffraction of Light", precisely accounting for the limited extent to which light spreads into shadows, and thereby demolishing the oldest objection to the wave theory of light.

Founding of the U.S. Army Judge Advocate General's Corps: General George Washington appoints William Tudor as Judge Advocate of the Continental Army.

War of the Grand Alliance: Battle of Landen: France wins a victory over Allied forces in the Netherlands.

Elizabeth I visits Harefield Place at Hillingdon and the Harefield Entertainment is performed.

Anglo-Spanish War: Battle of Gravelines: English naval forces under the command of Lord Charles Howard and Sir Francis Drake defeat the Spanish Armada off the coast of Gravelines, France.

The infant James VI is crowned King of Scotland at Stirling.

The widowed Mary, Queen of Scots marries Henry Stuart, Lord Darnley, Duke of Albany, at Holyrood Palace, Edinburgh, Scotland, in a Catholic ceremony.

The Siege of Damascus ends in a decisive crusader defeat and leads to the disintegration of the Second Crusade.

Ladejarl-Fairhair succession wars: Battle of Stiklestad: King Olaf II fights and dies trying to regain his Norwegian throne from the Danes.

Count Dirk III defeats an army sent by Emperor Henry II in the Battle of Vlaardingen.

Byzantine–Bulgarian wars: Battle of Kleidion: Byzantine emperor Basil II inflicts a decisive defeat on the Bulgarian army, and his subsequent treatment of 15,000 prisoners reportedly causes Tsar Samuil of Bulgaria to die of a heart attack less than three months later, on October 6.

Battle of Firenzuola: Lombard forces under King Rudolph II and Adalbert I, margrave of Ivrea, defeat the dethroned Emperor Berengar I of Italy at Firenzuola (Tuscany).