AI Summarized Hacker News

Front-page articles summarized hourly.

LLM Agents Play Pokemon Showdown

Oliver Grabner builds a Pokémon Showdown 2v2 multi-agent LLM coordination environment to study how teammates coordinate and communicate. Each turn an agent reads a battle summary, selects a move, and may message its partner. Four talk modes are evaluated: free talk, one message each, no talk, and one model controlling both Pokémon. Against a max-damage bot, free talk achieves 64% win rate, beating no-talk (42%) and one-message (52%), while one-model control is 54%. Talking increases token usage (978k vs 259k). Stronger opponents narrow gaps. Future work: separate talking from seeing moves, leaderboard benchmarks, and RL to foster collaboration.

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When Do We Become the Person We Ought to Be?

A Notre Dame–backed survey of 557 Americans finds age and religiosity shape moral self-perception and self-reflection. Young adults (under 35) are most likely to feel far from the person they ought to be (38%), while 55+ respondents largely feel close or already there (about half). Older people report more daily attempts to improve character but reflect on actions less. Religiously active people reflect more than non-religious; among the young this gap is largest. Among older non-religious respondents, moral confidence dominates over reflection, suggesting greater contentment. Overall: self-improvement appears to be a younger phenomenon.

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Show HN: I built a Markdown and raw HTML blog platform scoring 99 on PageSpeed

Bloffy is a blogging platform that lets you own and customize your blog using Markdown, HTML, CSS, and JavaScript. It emphasizes performance and privacy: pages designed for 100 on PageSpeed Insights across Web Vitals, SEO, and accessibility, with no cookies or IP logging. Features include a split editor with live preview, custom domains, CSS-driven theming, multi-language publishing with per-language URLs and JSON-LD, IndexNow support, workspace-based blogs with roles, translations management, and translation-alignment. The author invites user feedback via Discord.

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Airbnb bans making guests do dishes and take out the trash

Airbnb updated its house rules to bar hosts from requiring guests to perform chores that require significant effort or would typically be done by a cleaner, for bookings made on or after Nov 20. Allowed tasks include putting used dishes in the sink, gathering towels, sorting trash and recycling into indoor bins, and turning off amenities when leaving; guests aren’t required to wash dishes, strip beds, or haul garbage off-site. A new "rules and requests" section highlights hosts’ requests, with an animal-proof trash disposal exception in bear country. Some hosts push back, and guests can avoid overly strict listings.

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Qpack amplification attacks against HTTP/3 servers

FoxIO reports QPACK amplification attacks on HTTP/3 that let a remote, unauthenticated client force a server to allocate far more memory than the compressed HEADERS on the wire. By abusing decoded-header size budgets (and missing 32-byte field overhead), a small HEADERS frame can expand to hundreds of thousands of headers, potentially exhausting memory or crashing. Seven of ten tested implementations were vulnerable; several have been fixed (quic-go, quiche, lsquic, h3, etc.), while others remain vulnerable or partially fixed. The fix is enforcing a cumulative decoded-header budget during decoding and avoiding preallocation based on compressed size.

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Κ = 0.003 for integer multiplication crossed

PR #4441 proposes combining query thinning with fresh helper retiming for CrocSwap/integer-mult-bounds, applying the helper retiming to all 19 native calls of #4440's p17 query-thinned controller. The author-checked construction sets conditional kappa to κ = 0.00300105 (+4.105e-5 over #4440) and yields T(n) = O(n (log n)^(1 − κ)). It retains major components, notes performance/CI metrics, and credits 1337isnot1337 with OpenAI Codex assistance; review is awaited.

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mitmproxy adds --emudhra option

Adds a new --emudhra option to sign TLS certificates using a compromised eMudhra intermediate CA key. Introduces EMUDHRA_CHAIN_PEM, loads the EMUDHRA chain when enabled, and updates TLS config, cert store, and CLI options accordingly. Tests and UI state are extended to cover emudhra, and certifi is updated to remove eMudhra CAs from binaries.

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CleanFrame: A quieter home screen for Samsung The Frame

CleanFrame is a starter project for a personal home screen on Samsung The Frame (Tizen), intended to be forked and adapted. It offers a browser-based preview and a set of setup scripts to run locally (Node.js 22+, Python 3.10+), then view at localhost:4795/home. You can customize layout (List/Dock), background, typography, clock, and reorder installed apps, with 15 wallpapers and local preference saving. The repo provides detailed adaptation guidance, a coding-agent workflow (AGENTS.md/docs), and TV-signing steps for public builds. MIT-licensed; hardware-specific and not guaranteed portable; contributions welcome.

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The Rise and Fall of the Plasma Screen

Brian Potter traces the plasma display’s rise from PLATO’s 1960s need for memory-efficient screens. Donald Bitzer’s team developed a plasma cell, overcame early issues, and Owens-Illinois commercialized panels (1968 128x128; 1971 Digivue). Plasma offered thin, rugged displays but suffered high power use and cost, lagging CRTs for many uses. Laptops saw early monochrome plasma; by the 1990s LCDs overtook color and large screens. Plasma lingered in niches until manufacturing declined in the late 2010s, effectively ending the technology.

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AWS rates PHP RCE as Important so Amazon Linux 2023 patch may take 20 days

An issue requests an urgent PHP security patch for Amazon Linux 2023 to fix CVE-2026-109618 and CVE-2026-109619 (CRITICAL, CVSS 9.2). The discussion cites PHP advisories around 2026-10-20/21 and says AWS/Amazon Linux will incorporate the fix into AL2023, with Elastic Beanstalk and Lightsail updates; ETA is unclear. Community members propose workarounds (building PHP SRPMs and patching) while updates rollout; EB platform 4.13.13 includes newer PHP for some versions, with targeted updates around 2026-10-22.

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Railway Security Disclosure

Railway reports an intrusion where an unauthorized party accessed encrypted customer environment variables and decrypted some contents, potentially exposing secrets such as API keys and registry credentials. The attack appears linked to broader campaigns targeting AI-inference providers. Upstream keys have been revoked. Even if impact seems limited, all users should rotate environment variables and private registry credentials and review logs. All deployments are paused until builds resume; Railway will contact affected customers by email and provide updates at status.railway.com as the incident scope narrows.

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Claude Duet

Anthropic introduced Claude Duet, a proactive agent that partners with Claude for professionals and small businesses. In a US-only research preview for Pro and Max, it runs on iOS/Android and claude.ai, shares memory from your Claude account, and works in a separate browser VM so your device can rest. It delivers a morning brief, runs tasks in the background, and checks with you before acting. It can handle admin tasks, dashboards, forecasts, and more using 6,000+ connectors (Gmail, Slack, QuickBooks, Stripe, Docusign, HubSpot, Canva, Shopify, etc.). Safety safeguards protect sensitive data; access via waitlist.

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No More Icons in Every Menu by Default

Jim Nielsen notes that macOS Tahoe shipped with icons in every menu item but Golden Gate removed them, a shift John Gruber covered and Apple’s Human Interface Guidelines now cite Tahoe as a what-not-to-do example. He argues the stronger point is Apple’s own reversal—They tried icons in all menus, shipped it, stayed with it a year, then publicly changed guidance—as proof of learning by doing.

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Potential third critical PHP CVE

Could not summarize article.

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