Field Signal · Curated Reading
The Engineering
Signal.
High-signal field notes, architecture teardowns, and engineering writing from 50 publications. A focused reading queue for becoming a stronger end-to-end engineer. Updated 20 Aug.
How AgentFlo built AI sales agents with Amazon Bedrock AgentCore – Part 1
Learn how AgentFlo built always-on AI sales agents on Amazon Bedrock AgentCore and the Strands Agents SDK. Part 1 covers three pillars of production-grade agents—velocity, standardization, and scalability—including recipe-based deployment, tool routing through AgentCore Gateway, and elastic, statefu...
smolmachines / smolvm as a sandbox for untrusted Python & JavaScript
Research: smolmachines / smolvm as a sandbox for untrusted Python & JavaScript I tasked Claude Fable 5 running in Claude Code for web with the following research task: Put https://smolmachines.com through its paces as a fast secure sandbox. Explore what it would take to use this to run untrusted Pyt...
Quoting Jeremy Morrell
My hypothesis is that there is a new opportunity for Extensible Software on the web . LLMs radically lower the cost of authoring extensions, and modern sandbox primitives lower the deployment cost and provide good security boundaries. We can build our app as a solid, accountable core, and allow user...
Conceptual integrity and counting lines of code
Last week I recorded an episode of the Talking Postgres podcast with Claire Giordano on the subject of "How AI is changing software development". We had a really great conversation. Here are a couple of my highlights from a lightly edited transcript (prompt to Claude: "very minor edits to remove dis...
Developing NVIDIA Holoscan Applications with CLI, Skills, and AI Coding Agents
NVIDIA Holoscan is a platform for building real-time AI applications at the edge, from medical imaging to robotics. HoloHub is its companion repository: a...
Offering Zero Data Retention for frontier models
OpenAI reaffirms Zero Data Retention for eligible API customers and previews Private Safety Processing for advanced AI safety without compromising data privacy.
Citizens Build, Agents Execute, Experts Govern
TL;DR Why building an app over the weekend isn't the same as building enterprise software I’ve noticed an interesting gap opening up over the last six months. It isn’t really a gap in technology. It’s a gap in what different people think software engineering actually is. The conversation usually sta...
Practitioner Voice: The Writing Category Nobody has Named Yet
Jim Highsmith recognizes that effective writing from a practitioner is a style distinct from academic writing or thought-leadership content. It's a style that I advocate, and my contributors mostly follow. Jim decided it was important to give it a name, and identify what makes it distinctive. more…
Building Federated Multimodal AI Workflows with NVIDIA FLARE
Modern vision-language models (VLMs) can support tasks such as visual question answering, captioning, and image-text reasoning. In practice, however, the data...
A revisit of remote Spectre attacks on Cloudflare Workers
In 2024 and 2025, we reassessed remote Spectre attacks on our Workers infrastructure. We share details about the new attack primitives like Spectre gadgets, remote timers, achieving co-location and how new defenses further harden Cloudflare Workers.
Post-Train NVIDIA Cosmos 3 Edge for On-Device Robot Control
Robots need policies that can adapt to their sensors, environments, and tasks while running on onboard computing hardware. World models offer a foundation for...
Evaluating AI Agent Skill Performance with NVIDIA SkillEvaluator
AI agents are only as effective as the context they receive. Even with capable models and well-documented NVIDIA libraries, agents can spend extra steps finding...
GraphRAG: How AI Answers Questions Hidden Across Many Documents
GraphRAG was designed to handle the second kind of questions, and we are going to learn more about it in this article.
How Clario technology detects PHI/PII in DICOM images using Amazon Bedrock
Clario, part of Thermo Fisher Scientific, uses Amazon Bedrock and Amazon Textract to automatically detect protected health information (PHI) and personally identifiable information (PII) across thousands of DICOM image slices in clinical trials, covering both metadata tags and text burned into the i...
The Pulse: Grok’s CLI caught uploading all your local files to the cloud
Devs discover that Grok CLI pushed all local files, .env files and git history have been pushed to a GCP bucket, unencrypted. SpaceX’s initial reaction? Blame the devs
LFM2.5 Q4\_0 Checkpoints from Quantization-Aware Distillation
Open the source for the full engineering note.
AI-powered clinical trial eligibility and safety using Amazon Bedrock AgentCore
AI agents built on Amazon Bedrock AgentCore help clinical trial teams make fast, accurate enrollment decisions while keeping clinicians in control. This post shows how to architect an eligibility and safety screening agent using AWS HealthLake, AgentCore, and AgentCore Evaluations.
Kyverno is a platform primitive, not a security tool
Where does Kyverno live in your organization? I don’t mean which cluster! On which team’s slide deck does it show up? Whose budget line? For most companies I’ve talked to, the answer is security. Kyverno is...
Replit expands access to software creation with GPT-5.6 Luna
Replit introduces Free Mode, powered by GPT-5.6 Luna, so anyone can turn ideas into working software without worrying about token costs.
Why global workers are driving demand for stablecoin payouts
Platforms like DoorDash, Meta, and Deel already enable stablecoin payouts for global workers. We surveyed 2,300 workers in 20 countries to see what's driving stablecoin demand, where the opportunity is highest, and how other platforms can adapt.
How CISA’s BOD 26-04 changes vulnerability prioritization
Learn how CISA’s BOD 26-04 mandates risk-based vulnerability prioritization and how Datadog helps teams prioritize and remediate critical findings.
20× the CI traffic without getting slower: How we rebuilt Git serving at Datadog
Learn how Datadog built gitretriever to handle 20× more CI Git traffic while maintaining low latency and reducing backend CPU usage.
From chaos to context: Building an AI dev workflow
There's a particular kind of frustration that happens when prompting an AI assistant with the same correction multiple times in a single session. The marvels of modern large language models (LLMs) make it so you're working with the most enthusiastic apprentice you'll ever have. However, that apprent...
ChatGPT Ads expands across Europe
ChatGPT Ads is expanding to 31 European markets. Learn how advertisers can reach people as they explore, compare options, and make decisions.
Mojo🔥 is now open source
Mojo🔥 is now open source The Mojo programming language has been promising an open source release since May 2023 . Last week they shipped their 1.0 and today they have followed through on that original promise, releasing the compiler and toolchain under an Apache 2 license. When Mojo first launched ...