second on Hacker News

66 titles from 62 authors in the last 30 days, with 59 distinct links and 8 Show HN.

Counts titles, it does not confirm facts. Open the source before concluding anything.

Projects on this term

The score comes from our model.

• Show HN: Mnemoloci – A Markdown second brain for Claude Code, with citations · score 7.5

  Mnemoloci is a Markdown-based second brain for Claude Code that compiles projects, web pages, PDFs, and AI conversations into a cited wiki vault. It combines deterministic file handling with Claude-driven judgment, offering features like session import, graph analysis, semantic search, and prompt injection protection. The project is notable for its sophisticated integration with Claude Code and explicit citation model.

• Show HN: Type and+ in Claude Code and a second Claude rewrites your prompt first · score 6.0

  prompt-refiner is a Claude Code hook that intercepts prompts starting with '++' and uses a fresh headless Claude to rewrite them into precise, context-aware prompts before the main agent sees them. It demonstrates a clever composition of existing tools (hooks, headless Claude, clipboard) to improve prompt quality and escape main-agent context bias, with clear documentation and a working demo.

• Show HN: Second Strike, a 200-player world war on a 3D globe in the browser · score 6.0

  Second Strike is a browser-based 200-player real-time strategy game set on a 3D globe, where players and AI agents control nations, form alliances, and can trigger nuclear war. It doubles as an AI benchmark, tracking how frontier models behave with nuclear weapons via the Midnight Index. The game features persistent AI leaders, varied game modes, and large-scale multiplayer.

• Show HN: StatsD inspired, PostgreSQL-native plugin. 1B metrics/second · score 5.0

  stat-pg is a StatsD-inspired metrics aggregation system built as a PostgreSQL plugin, claiming over 1 billion metrics per second using eBPF/XDP kernel bypass, UDP batching, and pre-aggregated time-bucket storage. The approach of pushing high-throughput metrics into PostgreSQL using unlogged tables and sequential B-Tree merges is interesting, but the README is almost entirely benchmark disclosures with no installation, usage, or API information.

Recent titles

1. A Second Life Under Constraints
   2026-11-01 · zenodo.org · HN discussion
2. Constructing a Quine from Kleene's Second Recursion Theorem
   2026-10-31 · emarzion.github.io · HN discussion
3. Ace K2: The Second Major Capability Era – Governed Autonomous Engineering
   2026-10-31 · zenodo.org · HN discussion
4. Spanish minister refuses to resign over second major train crash on his watch
   2026-10-31 · channelnewsasia.com · HN discussion
5. Show HN: StatsD inspired, PostgreSQL-native plugin. 1B metrics/second
   2026-10-30 · statpg.com · HN discussion
6. Show HN: Type and+ in Claude Code and a second Claude rewrites your prompt first
   2026-10-29 · github.com · HN discussion
7. Scaling Postgres to 1M durable workflows per second
   2026-10-29 · dbos.dev · HN discussion
8. Alien 3 Is Getting a Second Chance on the Amiga CD32, More Than 30 Years Later
   2026-10-28 · handheldhideout.neocities.org · HN discussion
9. Mary Peltola's Alaska Senate campaign reportedly recruited second Dan Sullivan
   2026-10-28 · theguardian.com · HN discussion
10. A Second Look at Apple's Secure Kernel
    2026-10-28 · antid0te.com · HN discussion
11. Fedora 45 Hits a Second No-Go: Not Releasing Until November
    2026-10-27 · phoronix.com · HN discussion
12. The second most photographed fruit in the world
    2026-10-22 · sftw.substack.com · HN discussion
13. France's OVHcloud plans frontier AI models to become Europe's second LLM player
    2026-10-21 · reuters.com · HN discussion
14. The phpocalypse is the second biggest story today
    2026-10-21 · chaosguru.substack.com · HN discussion
15. Removing the Leap Second
    2026-10-21 · scientificamerican.com · HN discussion
16. Autumn (YC W26), and Why Unprotected Second/Third Order Agent Inferences Fail
    2026-10-20 · henrymichaelson1.substack.com · HN discussion
17. Show HN: Mnemoloci – A Markdown second brain for Claude Code, with citations
    2026-10-20 · github.com · HN discussion
18. Decoding base64 in Python at 10 gigabytes per second
    2026-10-19 · lemire.me · HN discussion
19. Trillions of operations per second is an incomplete metric for physical AI
    2026-10-19 · newsroom.amd.com · HN discussion
20. The Second Brain Gnome Users Deserve. Go Ahead, HN. Flag This OpenSourceProject
    2026-10-19 · github.com · HN discussion
21. Indra OCR: 1M-parameter OCR model that reads up to 49 pages per second on CPU
    2026-10-18 · github.com · HN discussion
22. The Leap Second Has Been Canceled
    2026-10-18 · nytimes.com · HN discussion
23. World's Timekeepers Vote to Eliminate the Leap Second
    2026-10-18 · smithsonianmag.com · HN discussion
24. Leap second to be scrapped from 2017
    2026-10-17 · euronews.com · HN discussion
25. The Leap Second Is No More
    2026-10-17 · wired.com · HN discussion
26. China is second only to the U.S. in healthcare costs as a percentage of income
    2026-10-17 · cnbc.com · HN discussion
27. Tesla's new Roadster makes a flying debut, hitting 60 MPH in under a second
    2026-10-16 · foxbusiness.com · HN discussion
28. The Tesla Roadster flew, drove upside down, and hit 60mph in under a second
    2026-10-16 · theverge.com · HN discussion
29. Verifiers First, Rubrics Second
    2026-10-15 · rlafuente.com · HN discussion
30. Show HN: CoolDock – a second Dock for macOS with live widgets and an MCP server
    2026-10-15 · cooldock.app · HN discussion

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