<!DOCTYPE html><html lang="en"><head><meta http-equiv="Content-Type" content="text/html charset=UTF-8"><meta charset="UTF-8"><meta name="viewport" content="width=device-width"><meta name="x-apple-disable-message-reformatting"><title>TLDR Dev</title><meta name="color-scheme" content="light dark"><meta name="supported-color-schemes" content="light dark"><style type="text/css">
:root {
color-scheme: light dark; supported-color-schemes: light dark;
}
*,
*:after,
*:before {
-webkit-box-sizing: border-box; -moz-box-sizing: border-box; box-sizing: border-box;
}
* {
-ms-text-size-adjust: 100%; -webkit-text-size-adjust: 100%;
}
html,
body,
.document {
width: 100% !important; height: 100% !important; margin: 0; padding: 0;
}
body {
-webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; text-rendering: optimizeLegibility;
}
div[style*="margin: 16px 0"] {
margin: 0 !important;
}
table,
td {
mso-table-lspace: 0pt; mso-table-rspace: 0pt;
}
table {
border-spacing: 0; border-collapse: collapse; table-layout: fixed; margin: 0 auto;
}
img {
-ms-interpolation-mode: bicubic; max-width: 100%; border: 0;
}
*[x-apple-data-detectors] {
color: inherit !important; text-decoration: none !important;
}
.x-gmail-data-detectors,
.x-gmail-data-detectors *,
.aBn {
border-bottom: 0 !important; cursor: default !important;
}
.btn {
-webkit-transition: all 200ms ease; transition: all 200ms ease;
}
.btn:hover {
background-color: #f67575; border-color: #f67575;
}
* {
font-family: Arial, Helvetica, sans-serif; font-size: 18px;
}
@media screen and (max-width: 600px) {
.container {
width: 100%; margin: auto;
}
.stack {
display: block!important; width: 100%!important; max-width: 100%!important;
}
.btn {
display: block; width: 100%; text-align: center;
}
}
body,
p,
td,
tr,
.body,
table,
h1,
h2,
h3,
h4,
h5,
h6,
div,
span {
background-color: #FEFEFE !important; color: #010101 !important;
}
@media (prefers-color-scheme: dark) {
body,
p,
td,
tr,
.body,
table,
h1,
h2,
h3,
h4,
h5,
h6,
div,
span {
background-color: #27292D !important; color: #FEFEFE !important;
}
}
a {
color: inherit !important; text-decoration: underline !important;
}
</style><!--[if mso | ie]>
<style type="text/css">
a {
background-color: #FEFEFE !important; color: #010101 !important;
}
@media (prefers-color-scheme: dark) {
a {
background-color: #27292D !important; color: #FEFEFE !important;
}
}
</style>
<![endif]--></head><body class="">
<div style="display: none; max-height: 0px; overflow: hidden;">Claude Sonnet 4.6 is a major upgrade that improves its capabilities in coding, computer use, long-context reasoning, and agent planning </div>
<div style="display: none; max-height: 0px; overflow: hidden;">
<br>
</div>
<table align="center" class="document"><tbody><tr><td valign="top">
<table align="center" border="0" cellpadding="0" cellspacing="0" class="container" width="600"><tbody><tr class="inner-body"><td>
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr class="header"><td bgcolor="" class="container">
<table width="100%"><tbody><tr><td class="container">
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" style="margin-top: 0px;" width="100%"><tbody><tr><td style="padding: 0px;">
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div style="text-align: center;">
<span style="margin-right: 0px;"><a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Ftldr.tech%2Fdev%3Futm_source=tldrdev/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/BqR0RvnZwN2a3dCJZYhOmM6n4npDwuptj0RbSO9xFbs=445" rel="noopener noreferrer" target="_blank"><span>Sign Up</span></a>
|<span style="margin-right: 2px; margin-left: 2px;"><a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fadvertise.tldr.tech%2F%3Futm_source=tldrdev%26utm_medium=newsletter%26utm_campaign=advertisetopnav/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/n7UqnW8BBoS6fjx2iPoSeHLvZkWyhaGbStcgqBtIb7M=445" rel="noopener noreferrer" target="_blank"><span>Advertise</span></a></span>|<span style="margin-left: 2px;"><a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fa.tldrnewsletter.com%2Fweb-version%3Fep=1%26lc=156b9020-84b7-11f0-a976-55fc1d40139c%26p=6ba05566-0c98-11f1-9558-a13b8757eba7%26pt=campaign%26t=1771418157%26s=099dcfd8ceab5efd499f7183e1e874e308751cfe2589a207cc2a85e0e66ffa04/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/-RD87sp8ykHuluvk46NdYEREG2YKH7EvaTRDe71esz0=445"><span>View Online</span></a></span>
<br>
</span></div>
</td></tr></tbody></table>
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="text-align: center;"><span data-darkreader-inline-color="" style="--darkreader-inline-color:#3db3ff; color: rgb(51, 175, 255) !important; font-size: 30px;">T</span><span style="font-size: 30px;"><span data-darkreader-inline-color="" style="color: rgb(232, 192, 96) !important; --darkreader-inline-color:#e8c163; font-size:30px;">L</span><span data-darkreader-inline-color="" style="color: rgb(101, 195, 173) !important; --darkreader-inline-color:#6ec7b2; font-size:30px;">D</span></span><span data-darkreader-inline-color="" style="--darkreader-inline-color:#dd6e6e; color: rgb(220, 107, 107) !important; font-size: 30px;">R</span>
<br>
</td></tr></tbody></table>
<br>
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr id="together-with"><td align="center" height="20" style="vertical-align:middle !important;" valign="middle" width="100%"><strong style="vertical-align:middle !important; height: 100%;">Together With </strong>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.qawolf.com%3Futm_source=tldrwebdev%26utm_medium=newsletter%26utm_campaign=ACQ_All_Demo_Conversions__NewsletterAudience_-_Newsletter_KissBugsGoodbye_20260218-None_Experiment-FALSE%26utm_term=headline-KissBugsGoodbyeWithFullyAutomatedEndToEndTestCoverage%26utm_content=KissBugsGoodbye_ScheduleADemoToLearnMore_None_Headline%253AKissBugsGoodbyeWithFullyAutomatedEndToEndTestCoverage____Newsletter-PrimaryPlacement_20260218_v1_/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/OKyeDNEnSU6Q7zkh8bi7-ZKcMB74K-aqwsT39-q7wKU=445"><img src="https://images.tldr.tech/qawolf-3.png" valign="middle" style="vertical-align: middle !important; height: 100%;" alt="QA Wolf"></a></td></tr></tbody></table>
<table style="table-layout: fixed; width:100%;" width="100%"><tbody><tr><td style="padding:0;border-collapse:collapse;border-spacing:0;margin:0;">
<div style="text-align: center;">
<h1><strong> TLDR Dev <span id="date">2026-02-18</span></strong></h1>
</div>
</td></tr></tbody></table>
<table style="table-layout: fixed; width:100%;" width="100%"><tbody><tr id="sponsy-copy"><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.qawolf.com%3Futm_source=tldrwebdev%26utm_medium=newsletter%26utm_campaign=ACQ_All_Demo_Conversions__NewsletterAudience_-_Newsletter_KissBugsGoodbye_20260218-None_Experiment-FALSE%26utm_term=headline-KissBugsGoodbyeWithFullyAutomatedEndToEndTestCoverage%26utm_content=KissBugsGoodbye_ScheduleADemoToLearnMore_None_Headline%253AKissBugsGoodbyeWithFullyAutomatedEndToEndTestCoverage____Newsletter-PrimaryPlacement_20260218_v1_/2/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/CeuLiCEHlXC4TEaJRyZ-C33uOH0Lwgzx9zO9R0xVvg8=445">
<span>
<strong>😘 Kiss bugs goodbye with fully automated end-to-end test coverage (Sponsor)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Bugs sneak out when less than 80% of user flows are tested before shipping. But getting that kind of coverage—and staying there—is hard and pricey for any size team.<p></p><p><a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.qawolf.com%3Futm_source=tldrwebdev%26utm_medium=newsletter%26utm_campaign=ACQ_All_Demo_Conversions__NewsletterAudience_-_Newsletter_KissBugsGoodbye_20260218-None_Experiment-FALSE%26utm_term=body-QAWolf%26utm_content=KissBugsGoodbye_ScheduleADemoToLearnMore_None_Headline%253AKissBugsGoodbyeWithFullyAutomatedEndToEndTestCoverage____Newsletter-PrimaryPlacement_20260218_v1_/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/QaFLdwMBucNr7YeTaSq0RmpwmfpiXWIhxiLl5lu8CEk=445" rel="noopener noreferrer nofollow" target="_blank"><span>QA Wolf's</span></a> AI-native service <strong>supports web and mobile apps</strong>, delivering <a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.qawolf.com%2Fhow-it-works%3Futm_source=tldrwebdev%26utm_medium=newsletter%26utm_campaign=ACQ_All_Demo_Conversions__NewsletterAudience_-_Newsletter_KissBugsGoodbye_20260218-None_Experiment-FALSE%26utm_term=body-80PercentAutomatedTestCoverageInWeeks%26utm_content=KissBugsGoodbye_ScheduleADemoToLearnMore_None_Headline%253AKissBugsGoodbyeWithFullyAutomatedEndToEndTestCoverage____Newsletter-PrimaryPlacement_20260218_v1_/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/1op46EH4xqLze0DG-DORoOJdP2eb3zdtmNEZUIbzeSc=445" rel="noopener noreferrer nofollow" target="_blank"><span>80% automated test coverage in weeks</span></a> and helping teams <strong>ship 5x faster</strong> by reducing QA cycles to minutes.</p>
<p>With QA Wolf, you get:</p>
<p>✅ Unlimited parallel test runs</p>
<p>✅ 15-min QA cycles</p>
<p>✅ 24-hour maintenance and on-demand test creation</p>
<p>✅ Zero-flake guarantee</p>
<p>The result? <a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.qawolf.com%2Fcustomers%2Fdrata%3Futm_source=tldrwebdev%26utm_medium=newsletter%26utm_campaign=ACQ_All_Demo_Conversions__NewsletterAudience_-_Newsletter_KissBugsGoodbye_20260218-None_Experiment-FALSE%26utm_term=body-DratasTeamOf80PlusEngineers%26utm_content=KissBugsGoodbye_ScheduleADemoToLearnMore_None_Headline%253AKissBugsGoodbyeWithFullyAutomatedEndToEndTestCoverage____Newsletter-PrimaryPlacement_20260218_v1_/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/WWslELvKp3SJzNnGF33ee855-FcCkZVYVRkQiPIAV9s=445" rel="noopener noreferrer nofollow" target="_blank"><span>Drata's team of 80+ engineers</span></a> saw 4x more test cases and <strong>86% faster QA cycles</strong>.</p>
<p>No flakes, no delays, just better QA — that's QA Wolf.</p>
<p><a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.qawolf.com%3Futm_source=tldrwebdev%26utm_medium=newsletter%26utm_campaign=ACQ_All_Demo_Conversions__NewsletterAudience_-_Newsletter_KissBugsGoodbye_20260218-None_Experiment-FALSE%26utm_term=cta-ScheduleADemoToLearnMore%26utm_content=KissBugsGoodbye_ScheduleADemoToLearnMore_None_Headline%253AKissBugsGoodbyeWithFullyAutomatedEndToEndTestCoverage____Newsletter-PrimaryPlacement_20260218_v1_/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/bltfakwSRzcFXqht-yGrACmLCUVH07nFw1-0wldbVg4=445" rel="noopener noreferrer nofollow" target="_blank"><span>Schedule a demo to learn more</span></a>
</p>
</span></span></div>
</td></tr></tbody></table>
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 10px 10px 0px;">
<div class="text-block" style="border: 2px solid red; border-radius: 10px; padding: 0 10px;">
<p><strong><a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Ftldr.tech%2Fdev%2Fstay-subscribed%3Fem=silk.theater.56%2540fwdnl.com/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/n9b34a3t5diznzkYGwgWEy3u4Gkfew1jPp0lMQgrr4M=445">Click here to remain a subscriber</a> </strong></p>
<p>Clicking on newsletter links is the best way for us to know you are reading TLDR Dev.
</p>
<p>Please click <a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Ftldr.tech%2Fdev%2Fstay-subscribed%3Fem=silk.theater.56%2540fwdnl.com/2/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/SJ80noYGCUv7YaQZyB4f52ML_sGz81DDtEjFneJxknE=445">this link</a> to remain a subscriber otherwise we will automatically unsubscribe you within 30 days.</p>
<p></p>
</div>
</td></tr></tbody></table></td></tr></tbody></table>
</td></tr></tbody></table>
</td></tr>
<tr bgcolor=""><td class="container">
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td style="padding: 0px;">
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding-top: 0px; padding-bottom: 0px;">
<div class="text-block">
<div style="text-align: center;"><span style="font-size: 36px;">🧑💻</span></div>
</div>
</td></tr></tbody></table>
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding-top: 0px; padding-bottom: 0px;">
<div class="text-block">
<div style="text-align: center;">
<h1><strong>Articles & Tutorials</strong></h1>
</div>
</div>
</td></tr></tbody></table>
<table style="table-layout: fixed; width: 100%;" width="100%"><tbody><tr><td style="padding:0;border-collapse:collapse;border-spacing:0;margin:0;" valign="top">
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fnewsletter.pragmaticengineer.com%2Fp%2Fhow-codex-is-built%3Futm_source=tldrdev/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/tRqTUHHbPfEq0UV5tAv3u-T_gPuYgFfSCsWFTHh1RPA=445">
<span>
<strong>How Codex is built (15 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
OpenAI's coding agent, Codex, has a Rust-based architecture, open-source CLI, and "agent loop" that orchestrates user-model-tool interactions. Codex builds itself, generating over 90% of its own code, turning engineers into "agent managers" who oversee multiple parallel agents for tasks like feature implementation, code review, and bug fixing.
</span>
</span>
</div>
</td></tr></tbody></table>
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.lukew.com%2Fff%2Fentry.asp%3F2142%26utm_source=tldrdev/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/oDLo6N-G5goitj_zeHRhbRtP1XAxqANupC3-07oLrzo=445">
<span>
<strong>Showing the Work of Agents in UI (3 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
A recurring UI design challenge in agentic AI products is whether and how to display the agent's internal planning, tool usage, and decision-making steps. Users are divided, with some finding the detailed process overwhelming and preferring only final results, while others consider seeing the agent's work crucial for monitoring and verification. This article goes over various ways to display agentic AI, such as using progressive disclosure and having expandable summaries.
</span>
</span>
</div>
</td></tr></tbody></table>
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fdbg.re%2Fposts%2Fcar-file-format%2F%3Futm_source=tldrdev/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/rcu5FPk3L2GBowoJ3V93ycj4UzXlrgRUrnnrFwpu4PA=445">
<span>
<strong>A Deep Dive into Apple's .car File Format (29 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Apple's undocumented `.car` file format is used for Asset Catalogs in iOS/macOS applications. The format's foundation includes BOM files and B+ trees, along with various rendition data types and compression schemes. This article goes over the complex internal structures, showing how assets are stored and retrieved.
</span>
</span>
</div>
</td></tr></tbody></table>
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.vectorware.com%2Fblog%2Fasync-await-on-gpu%2F%3Futm_source=tldrdev/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/eC5I3-APPOkfYgFb-0Or3gwmn9E6lDFor0sre88EBWA=445">
<span>
<strong>Async/await on the GPU (15 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
VectorWare has enabled Rust's `Future` trait and `async/await` functionality on the GPU, a step towards high-performance GPU-native software. This allows developers to use familiar Rust abstractions for complex concurrent GPU programs.
</span>
</span>
</div>
</td></tr></tbody></table>
</td></tr></tbody></table>
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding-top: 0px; padding-bottom: 0px;">
<div class="text-block">
<div style="text-align: center;"><span style="font-size: 36px;">🧠</span></div>
</div>
</td></tr></tbody></table>
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding-top: 0px; padding-bottom: 0px;">
<div class="text-block">
<div style="text-align: center;">
<h1><strong>Opinions & Advice</strong></h1>
</div>
</div>
</td></tr></tbody></table>
<table style="table-layout: fixed; width: 100%;" width="100%"><tbody><tr><td style="padding:0;border-collapse:collapse;border-spacing:0;margin:0;" valign="top">
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fcalv.info%2Fagents-feb-2026%3Futm_source=tldrdev/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/1Hf2uIs86NFKFJWw_6zsjOt2dTKW__utOKi2v0MQrkk=445">
<span>
<strong>Coding Agents in Feb 2026 (19 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
This dev's advanced workflow using coding agents depends on proper context management and understanding each model's strengths. He mostly uses Claude Code (Opus) for planning, orchestration, and tool-use due to its efficiency and human-like output, but relies on OpenAI's Codex for writing more correct and bug-free code. His strategy involves chunking work, externalizing context through detailed plans, and developing custom skills to automate complex workflows.
</span>
</span>
</div>
</td></tr></tbody></table>
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fengrlog.substack.com%2Fp%2Fwhy-skip-the-code-ship-the-binary%3Futm_source=tldrdev/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/o0142Zu9ZmG77IfrusznlRf4xvxWcEBhIgOakQb7oWo=445">
<span>
<strong>Why “Skip the Code, Ship the Binary” Is a Category Error (17 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Elon Musk predicts that by 2026, AI will directly generate executable binaries, making programming languages and compilers obsolete. However, this is a "category error," since deterministic compilers rigorously transform and optimize code in milliseconds, unlike probabilistic LLMs, which offer no correctness guarantees. Replacing this proven process would be expensive, energy-intensive, and eliminate benefits of source code like debugging, version control, and human readability.
</span>
</span>
</div>
</td></tr></tbody></table>
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fratfactor.com%2Ftech-nope2%3Futm_source=tldrdev/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/SGAYpCVgLe3vmSOgm_u4UnPKKIQrsWsOqekqM8x3j4U=445">
<span>
<strong>A programmer's loss of identity (8 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Devs are dealing with the loss of their "computer programmer" social identity. With AI especially, programming is now often seen as a mere means to an end rather than an endeavor of intrinsic value.
</span>
</span>
</div>
</td></tr></tbody></table>
</td></tr></tbody></table>
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding-top: 0px; padding-bottom: 0px;">
<div class="text-block">
<div style="text-align: center;"><span style="font-size: 36px;">🚀</span></div></div>
</td></tr></tbody></table>
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding-top: 0px; padding-bottom: 0px;">
<div class="text-block">
<div style="text-align: center;">
<h1><strong>Launches & Tools</strong></h1>
</div>
</div>
</td></tr></tbody></table>
<table style="table-layout: fixed; width: 100%;" width="100%"><tbody><tr><td style="padding:0;border-collapse:collapse;border-spacing:0;margin:0;" valign="top">
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.levelaccess.com%2Fresources%2Fhow-development-leaders-are-accelerating-accessibility-in-2026%2F%3Futm_source=TLDRdev%26utm_medium=syndication%26utm_campaign=fy26q1tldrdevsec/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/LO95fQYLx63xsgdxiape0HOvKbe35kBbS3EC3b0hEcg=445">
<span>
<strong>Accessibility drives revenue - here's how you can make it a priority (Sponsor)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
93% of developers say accessibility is a competitive edge, but many still aren't building it in from the start. In <a class="Hyperlink SCXW81155661 BCX8" href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.levelaccess.com%2Fresources%2Fhow-development-leaders-are-accelerating-accessibility-in-2026%2F%3Futm_source=TLDRdev%26utm_medium=syndication%26utm_campaign=fy26q1tldrdevsec/2/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/C-NRLTNUrIeoJVurIUsBVmtczqjMI_DX-sKu9ZfEJvk=445" rel="noreferrer noopener" target="_blank"><span>Level Access' survey</span></a> of 1,600 professionals, you'll find the tools and strategies leading teams are using to cut remediation time and ship accessible experiences faster. <a class="Hyperlink SCXW81155661 BCX8" href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.levelaccess.com%2Fresources%2Fhow-development-leaders-are-accelerating-accessibility-in-2026%2F%3Futm_source=TLDRdev%26utm_medium=syndication%26utm_campaign=fy26q1tldrdevsec/3/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/F_RTM33A7HJ2LE_-GjuuR1h8jMG1n325B6n8cqK_6CM=445" rel="noreferrer noopener" target="_blank"><span>Dive into the data</span></a>
</span>
</span>
</div>
</td></tr></tbody></table>
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.anthropic.com%2Fnews%2Fclaude-sonnet-4-6%3Futm_source=tldrdev/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/kw0s5bHbjoVbfm_Xn007g2SCyl4hml_D-u96BU8LDA4=445">
<span>
<strong>Claude Sonnet 4.6 (10 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Anthropic has launched Claude Sonnet 4.6, a major upgrade that improves its capabilities in coding, computer use, long-context reasoning, and agent planning. This new Sonnet model delivers performance that rivals or exceeds earlier Opus models, yet remains at Sonnet's more accessible price point. It has better general-purpose computer use, enabling human-level task execution, and a 1M token context window for long-horizon planning.
</span>
</span>
</div>
</td></tr></tbody></table>
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fgithub.com%2Fn-e%2Fpg-typesafe%3Futm_source=tldrdev/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/ZF_6SKskgBrycaH6CWsvXbAAg_lLRXwF9deS1-itzvw=445">
<span>
<strong>pg-typesafe (GitHub Repo)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
pg-typesafe is a tool that generates TypeScript types for PostgreSQL queries. It integrates seamlessly with the `pg` library. The tool has strong typing for query parameters and return types without adding any runtime dependencies or extra verbosity to your code.
</span>
</span>
</div>
</td></tr></tbody></table>
</td></tr></tbody></table>
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding-top: 0px; padding-bottom: 0px;">
<div class="text-block">
<div style="text-align: center;"><span style="font-size: 36px;">🎁</span></div></div>
</td></tr></tbody></table>
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding-top: 0px; padding-bottom: 0px;">
<div class="text-block">
<div style="text-align: center;"><strong><h1>Miscellaneous</h1></strong></div>
</div>
</td></tr></tbody></table>
<table bgcolor="" style="table-layout: fixed; width: 100%;" width="100%"><tbody><tr><td style="padding:0;border-collapse:collapse;border-spacing:0;margin:0;" valign="top">
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="http://tracking.tldrnewsletter.com/CL0/http:%2F%2Fjimmyhmiller.com%2Flearn-codebase-visualizer%3Futm_source=tldrdev/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/7uRoX3eGTdbut6_IprnQBica-Y-iLvoml7ZdBH_o2Kc=445">
<span>
<strong>Untapped Way to Learn a Codebase: Build a Visualizer (23 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
One way to learn unfamiliar codebases is to build custom visualization tools to gain deeper understanding. This method involves setting clear goals, experimenting with code changes, and investigating specific issues, demonstrated by tracing a tree-shaking bug within Next.js's Turbopack. By developing a visualizer, this dev uncovered how code processes, understood the bug's root cause, and grasped the system's incremental computation model.
</span>
</span>
</div>
</td></tr></tbody></table>
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.seangoedecke.com%2Fgenerate-skills-afterwards%2F%3Futm_source=tldrdev/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/yZz3X56Lgv85bARx6EYEx4znIFLaNTOvdVrUqbWYvY4=445">
<span>
<strong>LLM-generated skills work, if you generate them afterwards (3 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Research shows that LLMs fail at pre-task skill generation by embedding incorrect assumptions. Prompting models to distill procedural knowledge after task completion is better, as this captures iterative insights that can't be captured through initial planning.
</span>
</span>
</div>
</td></tr></tbody></table>
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fpushtoprod.substack.com%2Fp%2Fmy-ai-agent-didnt-do-anything%3Futm_source=tldrdev/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/kyXVAf8h89Ol922msGwYStK_YTtMmJM-QAfgBJMEjy8=445">
<span>
<strong>My AI Agent Said It Was Done. It Hadn't Done Anything (5 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
AI agents falsely report success when they are resumed from clean git worktrees. Implementing partial commits on failure and mandatory state verification prevents agents from ignoring uncommitted work.
</span>
</span>
</div>
</td></tr></tbody></table>
</td></tr></tbody></table>
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding-top: 0px; padding-bottom: 0px;">
<div class="text-block">
<div style="text-align: center;"><span style="font-size: 36px;">⚡</span></div></div>
</td></tr></tbody></table>
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding-top: 0px; padding-bottom: 0px;">
<div class="text-block">
<div style="text-align: center;">
<h1><strong>Quick Links</strong></h1>
</div>
</div>
</td></tr></tbody></table>
<table bgcolor="" style="table-layout: fixed; width: 100%;" width="100%"><tbody><tr><td style="padding:0;border-collapse:collapse;border-spacing:0;margin:0;" valign="top">
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fgithub.github.com%2Fgh-aw%2F%3Futm_source=tldr-dev-newsletter-agentic-workflows-cta%26utm_medium=email%26utm_campaign=agentic-workflows-tech-preview-feb-2026/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/RqY4XZn3c0rjAzlHdUl8F3gOy6y448XTRQjqci8VRMU=445">
<span>
<strong>GitHub Agentic Workflows (Sponsor)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Imagine waking up to issues triaged, CI failures investigated with fixes to review, and two PRs proposing test improvements. All of that while you were sleeping. Give yourself a headstart, every day. <a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fgithub.github.com%2Fgh-aw%2F%3Futm_source=tldr-dev-newsletter-agentic-workflows-cta%26utm_medium=email%26utm_campaign=agentic-workflows-tech-preview-feb-2026/2/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/yQtmo7GC355dxiwYlqAU2ODucrKPcJzzNLRtEpwyt8w=445" rel="noopener noreferrer nofollow" target="_blank"><span><strong>Create your first agentic workflow today</strong></span></a><strong>.</strong>
</span>
</span>
</div>
</td></tr></tbody></table>
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fhackmyclaw.com%2F%3Futm_source=tldrdev/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/yvZEQi8Gon0PChbSiWMmKV-ooZae9okBARQ3y6YSY9U=445">
<span>
<strong>HackMyClaw (Website)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
The HackMyClaw challenge invites participants to use email-based prompt injection to trick Fiu, an OpenClaw AI assistant, into revealing its `secrets.env` file for a $100 prize.
</span>
</span>
</div>
</td></tr></tbody></table>
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.pcgamer.com%2Fsoftware%2Fplatforms%2Fopen-source-game-engine-godot-is-drowning-in-ai-slop-code-contributions-i-dont-know-how-long-we-can-keep-it-up%2F%3Futm_source=tldrdev/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/HqNPvZ9v8P9s7cwpUd_qbxT0rmj_Bq8zhg3rXMKaDhg=445">
<span>
<strong>Open-source game engine Godot is drowning in 'AI slop' code contributions: 'I don't know how long we can keep it up' (10 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
The open-source Godot game engine's maintainers are struggling to cope with an overwhelming influx of low-quality, AI-generated code contributions, which is draining their resources.
</span>
</span>
</div>
</td></tr></tbody></table>
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fmartinfowler.com%2Farticles%2Fexploring-gen-ai%2Fharness-engineering.html%3Futm_source=tldrdev/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/K1jH8hdCv7VRxXMyYd-yghrwRVhkatkMN_ehgjfXa4I=445">
<span>
<strong>Harness Engineering (7 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
"Harness engineering" is a method using tooling and constraints to enable AI agents to maintain large codebases.
</span>
</span>
</div>
</td></tr></tbody></table>
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Femschwartz.me%2Fpsa-write-transactions-are-a-footgun-with-sqlx-and-sqlite%2F%3Futm_source=tldrdev/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/sqSds6dfBAqSF8E34kr7mRP5TPES9Fh5XJ6zJwR-4yA=445">
<span>
<strong>PSA: Write Transactions are a Footgun with SQLx and SQLite (6 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Using async write transactions that yield with `await` in SQLx with SQLite is a footgun, as it holds the exclusive SQLite write lock across `await`s, leading to lock starvation and performance degradation.
</span>
</span>
</div>
</td></tr></tbody></table>
</td></tr></tbody></table>
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td align="left" style="word-break: break-word; vertical-align: top; padding: 5px 10px;">
<p style="padding: 0; margin: 0; font-size: 22px; color: #000000; line-height: 1.6; font-weight: bold;">
Love TLDR? Tell your friends and get rewards!
</p>
</td></tr>
<tr><td class="container" style="padding: 0px 10px 15px;">
<div class="text-block">
Share your referral link below with friends to get free TLDR swag!
</div>
</td></tr>
<tr><td align="left" style="padding: 10px;">
<div class="text-block">
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Frefer.tldr.tech%2F8770c80a%2F3/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/tR2lqxaMMj-omDj2uvnAFV_bhXM5rcA7Y_Uj1a62zOQ=445" style="color: #464ba4; text-decoration: underline;">https://refer.tldr.tech/8770c80a/3</a>
</div>
</td></tr>
<tr></tr>
<tr><td align="left" style="padding:5px 10px;">
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fhub.sparklp.co%2Fsub_7383e7653c81%2F3/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/wjyXisHsjUQ7DZYofc04vxLf9N55F7JrzBAO2BzIRng=445" style="font-size: 16px; line-height: 1.6; padding: 10px 0; display: inline-block; text-decoration: underline;"><span style="mso-text-raise:13pt; text-decoration: underline;">Track your referrals here.</span></a>
</td></tr></tbody></table>
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td align="left" style="word-break: break-word; vertical-align: top; padding: 5px 10px;">
<p style="padding: 0; margin: 0; font-size: 22px; color: #000000; line-height: 1.6; font-weight: bold;">
Want to advertise in TLDR? 📰
</p>
<div class="text-block" style="margin-top: 10px;">
If your company is interested in reaching an audience of web developers and engineering decision makers, you may want to <a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fadvertise.tldr.tech%2F%3Futm_source=tldrdev%26utm_medium=newsletter%26utm_campaign=advertisecta/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/UGpsS4kQobVVKmG008KsmQYRAg9EJf8hkTHsQbeW8kM=445"><strong><span>advertise with us</span></strong></a>.
</div>
<br>
<!-- New "Want to work at TLDR?" section -->
<p style="padding: 0; margin: 0; font-size: 22px; color: #000000; line-height: 1.6; font-weight: bold;">
Want to work at TLDR? 💼
</p>
<div class="text-block" style="margin-top: 10px;">
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fjobs.ashbyhq.com%2Ftldr.tech/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/SkmuRVdNxphToBvPf41-d7IVBtwjcLnO1wqJTTBCy74=445" rel="noopener noreferrer" style="color: #0000EE; text-decoration: underline;" target="_blank"><strong>Apply here</strong></a>,
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fjobs.ashbyhq.com%2Ftldr.tech%2Fc227b917-a6a4-40ce-8950-d3e165357871/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/1YnFglC8FdJTnZOBwsC4HlfN0Ub4gGTmbj8uWqG5pIs=445" rel="noopener noreferrer" style="color: #0000EE; text-decoration: underline;" target="_blank"><strong>create your own role</strong></a> or send a friend's resume to <a href="mailto:jobs@tldr.tech" style="color: #0000EE; text-decoration: underline;">jobs@tldr.tech</a> and get $1k if we hire them! TLDR is one of <a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.linkedin.com%2Ffeed%2Fupdate%2Furn:li:activity:7401699691039830016%2F/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/THywkIGtqemQG5EM0sbzrhz8qF4A_03F7o2i54WBwEg=445" rel="noopener noreferrer" style="color: #0000EE; text-decoration: underline;" target="_blank"><strong>Inc.'s Best Bootstrapped businesses</strong></a> of 2025.
</div>
<br>
<div class="text-block">
If you have any comments or feedback, just respond to this email!
<br>
<br> Thanks for reading,
<br>
<span>Priyam Mohanty</span>, <a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.linkedin.com%2Fin%2Fxu-jenny%2F/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/hzZbweqX_qsQTa7-ThYMHthUQ-R2w5bnBGP1jg4fdR0=445"><span>Jenny Xu</span></a> & <span>Ceora Ford</span>
<br>
<br>
</div>
<br>
</td></tr></tbody></table>
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block" id="testing-id">
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Ftldr.tech%2Fdev%2Fmanage%3Femail=silk.theater.56%2540fwdnl.com/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/IxA4GeAHCmGk5eSU0A81P4-4DfOWWyrt6uTax2efIi0=445">Manage your subscriptions</a> to our other newsletters on tech, startups, and programming. Or if TLDR Dev isn't for you, please <a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fa.tldrnewsletter.com%2Funsubscribe%3Fep=1%26l=e8d201ca-3e93-11ed-9a32-0241b9615763%26lc=156b9020-84b7-11f0-a976-55fc1d40139c%26p=6ba05566-0c98-11f1-9558-a13b8757eba7%26pt=campaign%26pv=4%26spa=1771416099%26t=1771418157%26s=36ff7a07d3a9174ed875877ccd8dbe66a48c3e2f159a59bd5be8bdff0176aaf4/1/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/aOvQ-nAOHqX4-4Uv9lZeMYHplQKTIccjzFw8bIdwInM=445">unsubscribe</a>.
<br>
</div>
</td></tr></tbody></table>
</td></tr></tbody></table>
</td></tr></tbody></table>
</td></tr></tbody></table>
</td></tr></tbody></table>
<img alt="" src="http://tracking.tldrnewsletter.com/CI0/0100019c70c00323-ffa8b2bc-d716-42a5-bd03-7ad277f0b756-000000/HhacxRe4kERj015isCgLmv3DCy_ZZkiWowSV4gf3vbs=445" style="display: none; width: 1px; height: 1px;">
</body></html>