Hacker News

Top stories

Live mirror
30 storiesupdated just nowView source snapshot
  1. Claude Code now reads AGENTS.md if there is no Claude.md(claude.com ↗)
    142comments
  2. Android 17 is the first since 3.x to add new APIs without releasing to the AOSP(grapheneos.social ↗)
    196comments
  3. Saving another 100TB of RAM(cloudflare.com ↗)
    36comments
  4. Cloudflare Quick Tunnels(cloudflare.com ↗)
    224comments
  5. Xcode 27.1 Beta Release Notes(developer.apple.com ↗)
    60comments
  6. How OpenAI Used Its Own LLMs to Design Its Jalapeño Chip(ieee.org ↗)
    3comments
  7. US troop deaths during Iran war exceed Pentagon count by at least four(reuters.com ↗)
    39comments
  8. Cache-to-Cache: Direct Semantic Communication Between LLMs (2025)(arxiv.org ↗)
    11comments
  9. Photon-Emission-Guided Laser Fault Injection Enables RP2350 Secure Debug(ledger.com ↗)
    45comments
  10. Show HN: Cactus Needle 3: 8-29MB automation models can match DeepSeek V4 Flash(cactuscompute.com ↗)
    72comments
  11. How to Write with an LLM(sockpuppet.org ↗)
    249comments
  12. OpenJev(openjev.com ↗)
    238comments
  13. The first new cat species discovered in 100 years(nationalgeographic.com ↗)
    35comments
  14. Cyclomatic Complexity in C#(ndepend.com ↗)
    9comments
  15. The Implications of Linguistic Illegibility for LLM Security(arxiv.org ↗)
    17comments
  16. Two parallel neural ectoderm progenitors contribute to the developing brain(newscientist.com ↗)
    51comments
  17. C++26: Trivial infinite loops are no longer undefined behaviour(sandordargo.com ↗)
    168comments
  18. From Geometry to Algebra and Back Again: 4000 Years of Papers (2023) [video](youtube.com ↗)
    discuss
  19. Size-Specialized Memory Allocation(go.dev ↗)
    3comments
  20. Warez: The Infrastructure and Aesthetics of Piracy (2021)(archive.org ↗)
    13comments
  21. Minimal Phone 2(minimalcompany.com ↗)
    150comments
  22. How SpaceX streamlined the Raptor engine(construction-physics.com ↗)
    25comments
  23. The US 'Kill Chain' That Destroyed an Iranian School(bloomberg.com ↗)
    1comments
  24. A 1542 papal cipher cracked with simulated annealing(simonklee.dk ↗)
    discuss
  25. Inside ZCode: Silently uploading your Git history to the cloud(ferstar.org ↗)
    89comments
  26. A search-and-inference database from scratch in pure Zig(antfly.io ↗)
    16comments
  27. I vibed a proof of Conway's conjecture(overreacted.io ↗)
    175comments
  28. Korea raises data breach fines to 10% of revenue(koreajoongangdaily.com ↗)
    73comments
  29. North Korean nuclear test sets off years of earthquakes(science.org ↗)
    148comments
  30. Cekura (YC F24) Is Hiring(ycombinator.com ↗)
    discuss

Caveman Mode Save Token?

16 pointsby 5mo agotwitter.com
7 comments
5mo agoHN ↗

Anything that reduce input/output works to an extent logically.

5mo agoHN ↗

It does. I've been tinkering with Copilot Studio Agents and you can hit a 8k character limit quickly. By taking your instructions and asking Copilot to compress the information down, while ensuring they are still human readable, you can cut it back to about 5k characters. The information is more dense and functionally the same and the agent is just as consistent as before.

5mo agoHN ↗

I used a system prompt similar to this, where I just dumped the entirety of https://grugbrain.dev/ into it and prefaced it with the assistant having to emulate grug.

Didn't find it particularly useful, but is is funny!

5mo agoHN ↗

I've had the thought that English is an efficiency barrier for a while now. Surely there are more information-dense representations of semantic concepts.

Some languages for example have single characters that represent entire ideas/phrases.

https://news.ycombinator.com/item?id=47442478