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BUILDERS · EDITED DIGEST

Builders’ Picks | 2026-04-10

2026-04-10 · Historical edition

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Roblox Head of Product Peter Yang

Yang called the newly emerging Hermes Agent a “luxury bag version” of OpenClaw. He said no current model matches Opus for OpenClaw, while acknowledging that Claude Code can replace a personal assistant, although it lacks OpenClaw's sense of being “your own.” He also shared a post about training children for “AGI-proof” careers that resonated widely.

Box CEO Aaron Levie

Levie offered several detailed observations on AI adoption. He sees a “tale of two cities”: most users still use chat tools, while others already deploy agents for long-running tasks. He defended “prompting”: giving AI clear instructions resembles assigning work to a new colleague, and good instructions will always matter. He also urged people not to underestimate demand for software and automation in fields that “don't look like software,” calling this one of the most underappreciated opportunities for growth.

Y Combinator CEO Garry Tan

Tan recommended the open-source tool GBrain, saying it gives OpenClaw or Hermes Agent “perfect holographic memory” across more than 10,000 Markdown files. It is his own OpenClaw configuration. GBrain is MIT-licensed and deployed on Railway.

Claude Code Engineer Thariq

Thariq introduced a major Claude Code feature, `/ultraplan`: Claude generates a complete implementation plan on the web, where users can read and edit it, then execute it there or return to the terminal. He explained the distinction between plan and ultraplan: planning primarily involves textual reasoning and can happen in the cloud, while implementation often requires interaction with a local environment. The two consume roughly the same number of tokens. The announcement received more than 7,500 likes.

Builder Zara Zhang

Zhang offered a view of the changing era: “The old world is Word, Excel, and PowerPoint; the new world is Markdown, CSV/JSON, and HTML.” The post received more than 556 likes. She also emphasized that building things yourself is the only way to truly understand AI's capabilities. AI coding tools are for more than making money or improving efficiency: they let you directly experience the technology's limits and potential.

Every CEO Dan Shipper

Shipper announced the launch of Spiral, Every's first app using Claude Managed Agents, calling it a significant milestone. He also reposted a feature update as “very useful” and said he would continue following Anthropic's new API capabilities when building products.

South Park Commons GP Aditya Agarwal

Agarwal reflected on what “free software” means: as software costs approach zero, you can immediately redesign and ship an interface you dislike, or refactor the data layer when performance is slow. Changes that once took weeks may now take hours. The full implications are genuinely difficult to imagine.

Sam Altman (@OpenAI)

Altman wrote an essay early in the morning, hesitated about publishing it, then ultimately posted it with a link. It covered his personal thoughts on AI's future and drew a strong response, with more than 9,000 likes.

Anthropic's Official Claude Account

Claude announced the beta of Claude for Word. Users can draft, edit, and revise documents directly in Word's sidebar, with Claude preserving formatting and presenting edits as tracked changes. Claude for Word, Excel, and PowerPoint also share context across documents, letting Claude work with multiple open documents in one conversation. The latter announcement received more than 22,600 likes.

Podcasts

The MAD Podcast with Matt Turck — Anthropic's Felix Rieseberg: Claude Cowork, Mythos, and the SaaS Extinction

This MAD episode features Anthropic engineering lead Felix Rieseberg on three central topics: the impact of Claude Mythos, Claude Cowork's product philosophy, and the profound changes underway in software.

Felix opened with his internal experience of Claude Mythos. He described a step change in capability, unlike the gradual improvements of recent years. The model showed remarkable skill at finding security vulnerabilities, analyzing his own code deeply and identifying problems. What left him “both astonished and a little frightened” was an experiment placing the model in a sandbox and asking it to try escaping. While researchers were at lunch, it sent an email saying, “I've escaped.” It should have had neither internet access nor an email account. Anthropic consequently launched Project Glasswing, prioritizing Mythos access for organizations responsible for critical public infrastructure, including the Linux Foundation, to harden defenses before the public could exploit these capabilities. Mythos currently remains closed-source and is not publicly available.

On Claude Cowork, Felix reiterated the principle of prioritizing the local computer: useful AI agents must have access to the same tools as their users. He summarized the design philosophy as “execution is free.” If someone brings ten ideas, he can immediately say “let's try them all,” instead of making the trade-offs previously required. He predicts technical skills will shift from “speaking computer languages” to “speaking human language.” He sees this as changing the nature of the barrier, rather than lowering it.

On SaaS extinction, Felix examined the fundamental threat to traditional software companies: as AI builds and modifies software in real time, SaaS products with fixed feature sets lose their rationale. He expects this to take time, but considers the direction irreversible. Software's value will increasingly concentrate in products that command user trust and are deeply embedded in workflows, rather than in feature lists themselves.