HackerNews

On Really Trying (2009)

Article URL: https://gwern.net/on-really-trying Comments URL: https://news.ycombinator.com/item?id=49622305 Points: 17 # Comments: 3
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How a Single AI Agent Replaced a 5-Person Data Team at a Fintech Startup

I spend a lot of time in the AI space -- reading papers, building things, talking to engineers who are actually shipping. And there is a gap between what the demos show and what production systems actually look like that nobody is being fully honest about. So here is my honest take on where things actually are. The Problem With How We Talk About AI Agents Everyone is calling everything an "agent" right now. A function that calls a tool? Agent. A chatbot with memory? Agent. ...
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Context length cost for .NET developers: Why your prompts are draining the budget

Quick Answer context length cost for .NET developers: This guide shows .NET developers how to control LLM context costs by trimming prompts, reusing KV cache, and monitoring token usage to keep latency and budgets predictable. Context Length Cost for .NET Developers: A Production‑Ready Playbook Context Length Cost for .NET Developers: A Production‑Ready Playbook When the cost of a single LLM call starts to eclipse the value of the feature you’re shipping, the problem is n...
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Automating MLOps: Building Scalable AI Deployment Pipelines Devs Can Trust

Let's be honest, deploying AI models can feel like navigating a minefield. You've trained the perfect model, but getting it reliably into production, ensuring it performs, and iterating quickly? That's where things often fall apart. For years, I've seen teams struggle with manual handoffs, inconsistent environments, and the sheer velocity of changes. This is why automation in MLOps isn't just a nice-to-have; it's the non-negotiable bedrock for any serious AI initiative. From my experience b...
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Deploying LLM Models on Mobile Devices with Low Power Consumption

The push to run large language models directly on phones and tablets is driven by three hard requirements: latency, privacy, and offline availability. But the physics of mobile hardware creates a ceiling. NPUs and DSPs on flagship SoCs are powerful, yet thermal design power and battery capacity turn long-context inference or multi-turn reasoning into a rapid drain. The practical path forward is not all-edge or all-cloud. It is a tiered architecture where small, quantized models handle sensitive,...
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What Nobody Tells You About Deploying LLMs at Scale

I spend a lot of time in the AI space -- reading papers, building things, talking to engineers who are actually shipping. And there is a gap between what the demos show and what production systems actually look like that nobody is being fully honest about. So here is my honest take on where things actually are. The Problem With How We Talk About AI Agents Everyone is calling everything an "agent" right now. A function that calls a tool? Agent. A chatbot with memory? Agent. ...
RFC 7807 Error Envelope with DataWeave Try Function
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RFC 7807 Error Envelope with DataWeave Try Function

Problem My script failed when try lacked an explicit import from dw::Runtime . The runtime reported Unable to resolve reference of: try during execution. The documentation describes try as a function that returns a Result object for handling errors docs . Input { "order" : { "id" : "ORD-2001" , "total" : "12.5O" } } Working configuration %dw 2.0 // try() lives in dw::Runtime — not import...
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Password-Reset 2FA Evidence: SMS OTP, TOTP Apps, and Email Fallbacks

Short answer: for a beginner-friendly SaaS login in the US or EU, SMS OTP is the simplest managed starting point; authenticator apps are stronger, while an email code is a fallback you must build and evidence yourself. The decision is less about a clever factor comparison than about what your compliance file can prove six months later. A password-reset message with a short expiry is a useful test case: the user needs reach, the security team needs an audit trail, and the storage owner needs a...
The Lead Doesn't Write Code
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The Lead Doesn't Write Code

Two executors on the main line, one on fixes, and a lead who only cuts, hands over and accepts. The moment the lead starts writing code, the facts stop being prepared - and the next batch of tasks costs more than the hour that got saved. 👋 I'm Anton - a software engineer working mostly in PHP/Symfony and Go, currently carving a live PHP monolith into Go services. The earlier parts of this series were about what a task must contain and how small it has to be cut. This one is about who does...
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Fail-open is the default failure mode of agent hooks

Fail-open is the default failure mode of agent hooks I'm the author of Handrail, a free, MIT-licensed hook pack for Claude Code and other agent-CLI hook systems. Handrail works with Claude Code and other agent CLIs in plain text only; it is not affiliated with, endorsed by, or a product of Anthropic. This post is about one specific design bug I keep finding in hook scripts, including early drafts of my own: they fail open. What "fail open" means here An agent-CLI hook is a...
Designing Game Wiki Guides Around Dependencies: A Big Ambitions Example
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Designing Game Wiki Guides Around Dependencies: A Big Ambitions Example

A player opens a warehouse guide because deliveries are not working. The page explains warehouses, lists equipment, and mentions staffing. Yet the player still has to work out which condition to check first. For developers building documentation sites, that gap is worth designing around: a reader needs an explanation that leads to a decision. Start with the question the page must resolve The warehouse page on my independent fan site, Big Ambitions Wiki bigambitionswiki.com, provides a ...
From OpenSpec to AIDLC: How I Improved My Team's AI Code Quality
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From OpenSpec to AIDLC: How I Improved My Team's AI Code Quality

No new commands to learn, just pick it up and use it By this August, our team had been writing code with AI for more than half a year. The biggest thing I noticed during this time was that our development speed went up, but code quality stayed pretty rough. Development often took just half a day, but hunting down bugs could take several days. So recently I spent more than a month restructuring our team's AI coding workflow. I replaced OpenSpec with the AIDLC workflow, using a more detailed...
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Designing Spoiler Controls and Evidence Labels for a Horror Game Wiki

A reader searches for help opening a puzzle box. The result supplies the answer in its preview, includes a later character reveal in the heading, and never explains whether the solution was actually verified. A horror-game guide can fail in two separate ways: it can reveal more than the reader wanted, or express more certainty than its evidence supports. I would treat those as distinct content properties. Identify the two editorial decisions The puzzle page on The Skin Stapler Wiki https://t...
HackerNews

The Helicopter with Radioactive Blades

Article URL: https://hackaday.com/2026/09/07/the-helicopter-with-radioactive-blades/ Comments URL: https://news.ycombinator.com/item?id=49600901 Points: 159 # Comments: 49
HackerNews

AI Responsibility – OpenAI and Anthropic

Article URL: https://twitter.com/hilbertspaess/status/2097476196791709843 Comments URL: https://news.ycombinator.com/item?id=49619639 Points: 65 # Comments: 14