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<div style="display: none; max-height: 0px; overflow: hidden;">AI increasingly writing most of the code diminishes the personal satisfaction and value derived from years of mastering the coding craft </div>
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<h1><strong> TLDR Dev <span id="date">2026-01-08</span></strong></h1>
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Bugs sneak out when less than 80% of user flows are tested before shipping. However, getting that kind of coverage (and staying there) is hard and pricey for any team.<p></p><p><a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.qawolf.com%2F%3Futm_source=tldrwebdev%26utm_medium=newsletter%26utm_campaign=ACQ_All_Demo_Conversions__NewsletterAudience_-_Newsletter_GoodbyeLowTestCoverage_20251223-None_Experiment-FALSE%26utm_term=body-QAWolf%26utm_content=GoodbyeLowTestCoverage_ScheduleADemoToLearnMore_None_Headline%253AGoodbyeLowTestCoverageAndSlowQACycles____Newsletter-PrimaryPlacement_20251223_v1_/1/0100019b9d818eb1-c1b87cbe-8aa2-4e1b-a7fd-9f9f745d6c95-000000/dyeQsB4wF8F3i18rVErOp-bHrJgtVXP68Y-dTQa-pMI=439" rel="noopener noreferrer nofollow" target="_blank"><span>QA Wolf's</span></a> AI-native solution provides high-volume, high-speed test coverage for web and mobile apps, reducing your organization's QA cycle to minutes. </p>
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Dependabot-core is an open-source, stateless Ruby library responsible for the mechanics of tracking and updating dependencies across numerous package ecosystems. The full Dependabot service, including scheduling, state tracking, and pull request coordination, is managed by GitHub's proprietary infrastructure, making the service difficult to replicate independently. The library itself is a massive and complex codebase that often resorts to workarounds to handle ecosystem-specific nuances.
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CSS recently shipped `sibling-index()` and `sibling-count()` for creating staggered animations and other calculations based on an element's position relative to its siblings. `@container scroll-state()` is new and can be used for querying specific scroll states like 'stuck' or 'snapped', and `text-box` for control over typographic whitespace. `typed attr()` is an advanced function that allows HTML attributes to be used in CSS with type checking and fallbacks.
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<strong>The Sauna Algorithm: Surviving Asynchrony Without a Clock (4 minute read)</strong>
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The Sauna Algorithm is a metaphor for reasoning about time and safety in fully asynchronous systems without clocks. By anchoring an action to the arrival and departure of another participant who enters after you, it shows how causal relationships (happened-before) can bound execution safely without measuring time. The idea maps directly to distributed systems, where nodes rely on causality, rather than synchronized clocks, to guarantee consistency and correct ordering.
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<strong>LMArena is a cancer on AI (5 minute read)</strong>
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LMArena is a popular online AI leaderboard that is a broken system for evaluating AI models. The platform rewards superficial qualities like verbosity, aggressive formatting, and emojis over factual accuracy because users quickly vote based on aesthetics rather than careful evaluation. These wrong incentives lead models to optimize for "hallucination-plus-formatting."
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A veteran C programmer found that treating agents like skilled interns is the best way to use them. He delegates specific, tedious tasks while he himself focuses on high-level design, analysis, and optimization.
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Headlamp is an easy-to-use and extensible Kubernetes web UI. It combines traditional resource viewing with advanced functionalities, supporting both in-cluster deployment and local desktop use. It has multi-cluster management, plugin capabilities, and RBAC-driven access controls.
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<strong>Tool UI (Website)</strong>
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Tool UI is a React component framework that renders schema-validated JSON outputs from tools as inline, assistant-anchored, and interactive elements for conversation-native UIs within chat applications.
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<div style="text-align: center;"><strong><h1>Miscellaneous</h1></strong></div>
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<strong>The context is the work (what the day-to-day looks like now) (13 minute read)</strong>
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Coding agents have made code generation inexpensive, shifting the core challenge in engineering from writing code to properly defining intent, constraints, and trade-offs. As a result, PR descriptions have become even more important, as they need to communicate this context. A good PR description includes executive intent, reviewer guidance, and detailed provenance to effectively convey information to various audiences.
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<strong>Kernel bugs hide for 2 years on average. Some hide for 20 (17 minute read)</strong>
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An analysis of over 125 thousand Linux kernel bugs over 20 years revealed an average bug lifetime of 2.1 years, with some, like race conditions, hiding for over five years before discovery. While newer bugs are being found faster due to improved tooling, a backlog of ancient bugs still exists. To address this, a new tool called VulnBERT integrates neural pattern recognition with 51 handcrafted code features to successfully predict bug-introducing commits with 92.2% recall.
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<div style="text-align: center;"><span style="font-size: 36px;">⚡</span></div></div>
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<h1><strong>Quick Links</strong></h1>
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<strong>The grief when AI writes most of the code (3 minute read)</strong>
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Devs express grief and a sense of loss over AI increasingly writing most of their code, as it diminishes the personal satisfaction and value derived from years of mastering the coding craft.
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<strong>AI writes code faster. Your job is still to prove it works (10 minute read)</strong>
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AI makes code generation faster, but it shifts the bottleneck from writing to proving its functionality, making human verification and accountability needed for good code review.
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<strong>I got paid minimum wage to solve an impossible problem (9 minute read)</strong>
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Through over-optimizing a floor-sweeping task, a Computer Science student realized that prioritizing technically correct but ill-chosen metrics invariably results in practically useless or even detrimental outcomes.
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<strong>Noi (GitHub Repo)</strong>
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<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Noi is a macOS/Windows application and browser extension that improves productivity and reduces digital clutter through features like AI chat prompt management, multi-window organization, and an integrated terminal.
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