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<div style="display: none; max-height: 0px; overflow: hidden;">OpenAI is acquiring Astral and its widely used open-source Python developer tools. OpenAI's Codex is moving beyond simple code generation </div>
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<h1><strong> TLDR Dev <span id="date">2026-03-20</span></strong></h1>
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OpenAI's Codex coding agent uses an "agent loop" that iteratively constructs prompts, interacts with the model, and executes tool calls like running commands or tests until a task is complete. Managing the growing conversation history and layered context is done through prompt caching and context window compaction to maintain performance. To support various interfaces, from CLIs to IDEs, OpenAI developed a bidirectional App Server protocol that encapsulates the core agent logic.
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<strong>Thinking beats coding: How to hire the right engineers in the AI era (4 minute read)</strong>
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Hiring engineers based on framework knowledge is increasingly misguided as AI handles more implementation work. The traits that have always separated strong engineers are systems thinking, reasoning about tradeoffs, and clarifying problems before proposing solutions.
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A dev's job isn't to write code. It's to solve problems, and the best engineers spend more time questioning requirements than typing. Code is a liability that needs to be maintained forever, so the real win is often writing less of it (or none at all).
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With Svix you no longer need to. <a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.svix.com%2Fcustomers%2Fbrex%2F/1/0100019d0b035348-3f1e12f2-fccd-400c-aa32-d1090e0f4776-000000/D6_naeC5-myOXpF29qhV5QUJDWlyEWyhlVYkLh9PQRE=449" rel="noopener noreferrer nofollow" target="_blank"><span>Learn from Brex:</span></a> API teams know they need webhooks, but bandwidth and timing often push them out.
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Claude Channels allow external events, like CI results, chat messages, or monitoring alerts, to be pushed into a running Claude Code session from an MCP server, enabling Claude to react while you're away. These channels, implemented as plugins for platforms like Telegram and Discord, can be two-way, allowing Claude to reply back through the same channel.
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<strong>Starwind UI (Website)</strong>
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Starwind UI is a collection of beautiful, accessible components for Astro projects, styled with Tailwind CSS v4, providing a "shadcn-like" experience for Astro developers. It allows users to own and fully customize component source code directly.
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<div style="text-align: center;"><strong><h1>Miscellaneous</h1></strong></div>
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