<rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Hacker News: cjbarber</title><link>https://news.ycombinator.com/user?id=cjbarber</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Fri, 23 Oct 2026 12:21:59 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=cjbarber" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by cjbarber in "Delta WiFi Survival Guide"]]></title><description><![CDATA[
<p>I want a 'has starlink/equivalent' filter on <a href="https://www.google.com/travel/flights" rel="nofollow">https://www.google.com/travel/flights</a></p>
]]></description><pubDate>Sat, 03 Oct 2026 18:45:51 +0000</pubDate><link>https://news.ycombinator.com/item?id=49946668</link><dc:creator>cjbarber</dc:creator><comments>https://news.ycombinator.com/item?id=49946668</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49946668</guid></item><item><title><![CDATA[New comment by cjbarber in "Breakout List: Great startups to join"]]></title><description><![CDATA[
<p>Thanks! Investor bios for the investor panel would be helpful, agreed. The why join a breakout startup section links to those people's career advice posts.</p>
]]></description><pubDate>Wed, 16 Sep 2026 17:33:55 +0000</pubDate><link>https://news.ycombinator.com/item?id=49730343</link><dc:creator>cjbarber</dc:creator><comments>https://news.ycombinator.com/item?id=49730343</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49730343</guid></item><item><title><![CDATA[New comment by cjbarber in "Breakout List: Great startups to join"]]></title><description><![CDATA[
<p>Interesting, fwiw HN comments are 9pt and comment headers are 8pt, whereas the descriptions on the breakout list site are 9.4pt (12.5px). Though I do agree it's small.</p>
]]></description><pubDate>Wed, 16 Sep 2026 17:19:59 +0000</pubDate><link>https://news.ycombinator.com/item?id=49730127</link><dc:creator>cjbarber</dc:creator><comments>https://news.ycombinator.com/item?id=49730127</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49730127</guid></item><item><title><![CDATA[New comment by cjbarber in "Breakout List"]]></title><description><![CDATA[
<p>Hi HN, I made this list of startups to join. I asked people for help identifying the investors who have a good view on how different startups are doing. Then I asked some of those investors to pick their top bets inside their portfolio, and their top bets outside their portfolio.<p>This is based on the career philosophy around joining breakout startups.<p>If you have suggestions of how I could improve usability or suggestions for the future, let me know.</p>
]]></description><pubDate>Wed, 16 Sep 2026 17:12:16 +0000</pubDate><link>https://news.ycombinator.com/item?id=49730008</link><dc:creator>cjbarber</dc:creator><comments>https://news.ycombinator.com/item?id=49730008</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49730008</guid></item><item><title><![CDATA[Breakout List: Great startups to join]]></title><description><![CDATA[
<p>Article URL: <a href="https://breakoutlist.com/">https://breakoutlist.com/</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=49730007">https://news.ycombinator.com/item?id=49730007</a></p>
<p>Points: 2</p>
<p># Comments: 5</p>
]]></description><pubDate>Wed, 16 Sep 2026 17:12:16 +0000</pubDate><link>https://breakoutlist.com/</link><dc:creator>cjbarber</dc:creator><comments>https://news.ycombinator.com/item?id=49730007</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49730007</guid></item><item><title><![CDATA[New comment by cjbarber in "Atlas-Finance: Evaluating AI Agents Inside a Bank"]]></title><description><![CDATA[
<p>I found this interesting.<p>> We evaluate 11 frontier models (see Figure 1), all run within the OpenCode agentic harness. Claude Opus 5 performs the best, yet still only manages to pass 12.3% of tasks. Claude Fable 5.1 and GPT-6 Astra are close behind, but the other eight models have significantly lower pass rates.</p>
]]></description><pubDate>Tue, 15 Sep 2026 23:37:32 +0000</pubDate><link>https://news.ycombinator.com/item?id=49720324</link><dc:creator>cjbarber</dc:creator><comments>https://news.ycombinator.com/item?id=49720324</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49720324</guid></item><item><title><![CDATA[Atlas-Finance: Evaluating AI Agents Inside a Bank]]></title><description><![CDATA[
<p>Article URL: <a href="https://joinhandshake.com/research/benchmarks/articles/atlas-finance-evaluating-ai-agents-inside-a-bank/">https://joinhandshake.com/research/benchmarks/articles/atlas-finance-evaluating-ai-agents-inside-a-bank/</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=49720319">https://news.ycombinator.com/item?id=49720319</a></p>
<p>Points: 2</p>
<p># Comments: 1</p>
]]></description><pubDate>Tue, 15 Sep 2026 23:37:11 +0000</pubDate><link>https://joinhandshake.com/research/benchmarks/articles/atlas-finance-evaluating-ai-agents-inside-a-bank/</link><dc:creator>cjbarber</dc:creator><comments>https://news.ycombinator.com/item?id=49720319</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49720319</guid></item><item><title><![CDATA[Remind HN: Perseid meteor shower peaks tonight]]></title><description><![CDATA[

<p>Comments URL: <a href="https://news.ycombinator.com/item?id=49274511">https://news.ycombinator.com/item?id=49274511</a></p>
<p>Points: 11</p>
<p># Comments: 0</p>
]]></description><pubDate>Wed, 12 Aug 2026 15:59:24 +0000</pubDate><link>https://news.ycombinator.com/item?id=49274511</link><dc:creator>cjbarber</dc:creator><comments>https://news.ycombinator.com/item?id=49274511</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49274511</guid></item><item><title><![CDATA[New comment by cjbarber in "Discovery Loop"]]></title><description><![CDATA[
<p>From Jeff's twitter post:<p>> Our general approach is to automate the experimental loop. We think this approach is broadly applicable across many different fields of science and engineering. We’ll initially focus on ML research and engineering, but believe the approach can help with important subproblems in nearly every one of the fourteen <at>NAE Grand Challenge problems. We think doing this well requires strong expertise in machine learning as well as large-scale systems.<p>See also: <a href="https://www.nae.edu/20782/grand-challenges-project" rel="nofollow">https://www.nae.edu/20782/grand-challenges-project</a><p>Those 14 are:<p>NAE Grand Challenges for Engineering<p>1. Make Solar Energy Economical<p>2. Provide Energy from Fusion<p>3. Develop Carbon Sequestration Methods<p>4. Manage the Nitrogen Cycle<p>5. Provide Access to Clean Water<p>6. Restore and Improve Urban Infrastructure<p>7. Advance Health Informatics<p>8. Engineer Better Medicines<p>9. Reverse Engineer the Brain<p>10. Prevent Nuclear Terror<p>11. Secure Cyberspace<p>12. Enhance Virtual Reality<p>13. Advance Personalized Learning<p>14. Engineer the Tools of Scientific Discovery</p>
]]></description><pubDate>Wed, 05 Aug 2026 16:59:18 +0000</pubDate><link>https://news.ycombinator.com/item?id=49185577</link><dc:creator>cjbarber</dc:creator><comments>https://news.ycombinator.com/item?id=49185577</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49185577</guid></item><item><title><![CDATA[New comment by cjbarber in "Superlogical"]]></title><description><![CDATA[
<p>My understanding: it’s like tmux but the session lives on a server instead of one machine and you can open it on your computer/phone/etc</p>
]]></description><pubDate>Wed, 29 Jul 2026 17:21:49 +0000</pubDate><link>https://news.ycombinator.com/item?id=49100370</link><dc:creator>cjbarber</dc:creator><comments>https://news.ycombinator.com/item?id=49100370</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49100370</guid></item><item><title><![CDATA[New comment by cjbarber in "Precursor"]]></title><description><![CDATA[
<p>Bright Data ranks #1 on Foil's leaderboard [1], but is still detected. ScrapFly is #4 and ZenRows #7. And I guess Capsolver isn't really a scraping thing but is more just for the captcha component.<p>I think it'd be good if there were more products that did a better job of making an actually undetectable agent, but doesn't seem like any exist yet.<p>[1]: <a href="https://usefoil.com/research/stealth-browser-leaderboard" rel="nofollow">https://usefoil.com/research/stealth-browser-leaderboard</a></p>
]]></description><pubDate>Mon, 13 Jul 2026 22:20:52 +0000</pubDate><link>https://news.ycombinator.com/item?id=48899692</link><dc:creator>cjbarber</dc:creator><comments>https://news.ycombinator.com/item?id=48899692</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48899692</guid></item><item><title><![CDATA[New comment by cjbarber in "Precursor"]]></title><description><![CDATA[
<p>This (agent detection) is now a kind of emerging space. Obviously it'll get much more important, too.<p>Other products in the space:<p>- Foil (<a href="https://usefoil.com/" rel="nofollow">https://usefoil.com/</a>), I'm biased, a friend is building this<p>- Kasada <a href="https://www.kasada.io/" rel="nofollow">https://www.kasada.io/</a><p>- DataDome (<a href="https://datadome.co/" rel="nofollow">https://datadome.co/</a>)<p>- Castle (<a href="https://castle.io/" rel="nofollow">https://castle.io/</a>)<p>- Fingerprint (<a href="https://fingerprint.com/" rel="nofollow">https://fingerprint.com/</a>)<p>- HUMAN (<a href="http://humansecurity.com/" rel="nofollow">http://humansecurity.com/</a>)<p>- Google Cloud Fraud Defense, which is basically the updated reCaptcha (<a href="https://cloud.google.com/security/products/fraud-defense?hl=en" rel="nofollow">https://cloud.google.com/security/products/fraud-defense?hl=...</a>)<p>- this, Cloudflare Precursor<p>It seems like some of the main reasons people care so far are:<p>- Preventing automated credential stuffing<p>- Preventing bots from creating a bunch of fake accounts (eg free trial abuse, which can also lead to high twilio SMS bills!)<p>- Reducing payment fraud<p>- Blocking LLM scraping<p>- Blocking automated scalpers (!) eg for tickers or sneakers<p>I'm curious to see which use cases end up dominating as the reason companies care about this. And I'm hopeful that my agents will still have good ways for me to browse and do things on the web on my behalf - eg detect agents and route them to an agent path, rather than blocking them.<p>(I'm interested in tools for detecting AI agents and seeing how this shifts as bot traffic goes way up.)</p>
]]></description><pubDate>Mon, 13 Jul 2026 16:51:44 +0000</pubDate><link>https://news.ycombinator.com/item?id=48895409</link><dc:creator>cjbarber</dc:creator><comments>https://news.ycombinator.com/item?id=48895409</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48895409</guid></item><item><title><![CDATA[New comment by cjbarber in "Blogging can just be stating the obvious"]]></title><description><![CDATA[
<p>This is <i>often, but not always,</i> also what stand up comedy is.</p>
]]></description><pubDate>Thu, 25 Jun 2026 02:09:37 +0000</pubDate><link>https://news.ycombinator.com/item?id=48667978</link><dc:creator>cjbarber</dc:creator><comments>https://news.ycombinator.com/item?id=48667978</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48667978</guid></item><item><title><![CDATA[New comment by cjbarber in "Computer Use Is 45x More Expensive Than Structured APIs"]]></title><description><![CDATA[
<p>I think of computer use as like last mile delivery. APIs and bash and such are the efficient logistics networks. Both have different benefits. Obviously, use the efficient methods when you can.</p>
]]></description><pubDate>Tue, 05 May 2026 17:08:27 +0000</pubDate><link>https://news.ycombinator.com/item?id=48025377</link><dc:creator>cjbarber</dc:creator><comments>https://news.ycombinator.com/item?id=48025377</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48025377</guid></item><item><title><![CDATA[New comment by cjbarber in "Show HN: I made a quiz to help people learn Claude Code features (with macOS UI)"]]></title><description><![CDATA[
<p>Awesome, thanks for checking it out.</p>
]]></description><pubDate>Tue, 21 Apr 2026 14:21:34 +0000</pubDate><link>https://news.ycombinator.com/item?id=47849250</link><dc:creator>cjbarber</dc:creator><comments>https://news.ycombinator.com/item?id=47849250</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47849250</guid></item><item><title><![CDATA[Show HN: I made a quiz to help people learn Claude Code features (with macOS UI)]]></title><description><![CDATA[
<p>I also went a bit overboard on the UI.<p>Some of the backstory:<p>- I'd seen Boris's X thread of lesser known claude code features<p>- I taught two of my non-technical friends some claude code features in person recently (I did a few AI tutoring sessions with friends, for fun and curiosity)<p>- In the process of teaching others, I consumed some of the official educational content from Anthropic<p>- I saw how many not well known features there are!<p>- With a lot of Claude's help I made this.<p>- The UI scope expansion was very fun to indulge.<p>Let me know what you think!</p>
<hr>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=47849166">https://news.ycombinator.com/item?id=47849166</a></p>
<p>Points: 3</p>
<p># Comments: 3</p>
]]></description><pubDate>Tue, 21 Apr 2026 14:16:25 +0000</pubDate><link>https://slashquiz.org/</link><dc:creator>cjbarber</dc:creator><comments>https://news.ycombinator.com/item?id=47849166</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47849166</guid></item><item><title><![CDATA[New comment by cjbarber in "Codex for almost everything"]]></title><description><![CDATA[
<p>Thanks for answering!</p>
]]></description><pubDate>Thu, 16 Apr 2026 21:20:47 +0000</pubDate><link>https://news.ycombinator.com/item?id=47799642</link><dc:creator>cjbarber</dc:creator><comments>https://news.ycombinator.com/item?id=47799642</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47799642</guid></item><item><title><![CDATA[New comment by cjbarber in "Codex for almost everything"]]></title><description><![CDATA[
<p>> market uptake.<p>I think the market uptake of Claude Cowork is already massive.</p>
]]></description><pubDate>Thu, 16 Apr 2026 18:37:13 +0000</pubDate><link>https://news.ycombinator.com/item?id=47797615</link><dc:creator>cjbarber</dc:creator><comments>https://news.ycombinator.com/item?id=47797615</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47797615</guid></item><item><title><![CDATA[New comment by cjbarber in "Codex for almost everything"]]></title><description><![CDATA[
<p>My view is different. Agent products have access to tools and to write and run code. This makes them much more useful than raw models.</p>
]]></description><pubDate>Thu, 16 Apr 2026 18:02:30 +0000</pubDate><link>https://news.ycombinator.com/item?id=47797195</link><dc:creator>cjbarber</dc:creator><comments>https://news.ycombinator.com/item?id=47797195</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47797195</guid></item><item><title><![CDATA[New comment by cjbarber in "Codex for almost everything"]]></title><description><![CDATA[
<p>The history of both knowledge work and software engineering seems to be increasing in both volume and complexity, feels reasonable to me to bet on both of those trendlines increasing?</p>
]]></description><pubDate>Thu, 16 Apr 2026 18:01:52 +0000</pubDate><link>https://news.ycombinator.com/item?id=47797186</link><dc:creator>cjbarber</dc:creator><comments>https://news.ycombinator.com/item?id=47797186</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47797186</guid></item></channel></rss>