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Show HN: Mdarena – Benchmark your Claude.md against your own PRs

https://github.com/HudsonGri/mdarena
6•hudsongr•1h ago

Comments

hudsongr•1h ago
Hey! I built this because everyone's writing CLAUDE.md files now but nobody knows if theirs actually works. The research is contradictory too, one paper says they hurt performance, another says they help. So I made a tool that just measures it on your own repo using your own PRs and your own test suite.

Turns out it's not often you can point to a single markdown file and say "this made the agent 27% better at resolving real tasks." That's what we saw on our production monorepo. I imagine this as a way for teams to actually make their agents write better code instead of guessing.

"The Movies" Probably Aren't Coming Back

https://twitter.com/TechSquidTV/status/2034679615453614118
1•TechSquidTV•13s ago•0 comments

Usenet Archives

https://usenetarchives.com
1•myth_drannon•28s ago•0 comments

Run Gemma 4 in Your Browser

https://huggingface.co/spaces/webml-community/Gemma-4-WebGPU
1•oldfuture•3m ago•0 comments

We analyzed 5,480 hospital cost reports. Supply spending varies 3-7x

https://andrewrexroad.substack.com/p/the-supply-closet
1•rexroad•9m ago•0 comments

Corridor Crew Is Changing Filmmaking Forever [video]

https://www.youtube.com/watch?v=D_E_x8OJbrg
1•CHB0403085482•10m ago•0 comments

OpenCloud: Open-source, sovereign alternative to Google Drive, fork of OwnCloud

https://opencloud.eu/en
2•maxloh•13m ago•2 comments

Cloud Codex – self-hosted real-time collaborative docs platform

https://github.com/Cloud-City-Computing/c2
1•xtelos•13m ago•1 comments

Anthropic blocks cli calls mentioning OpenClaw

https://twitter.com/steipete/status/2040811558427648357
2•nstj•17m ago•2 comments

LLMs can't justify their answers–this CLI forces them to

https://wheat.grainulation.com/
2•volatilityfund•25m ago•0 comments

Show HN: LLMs' Favorite Colors

https://davidstolarsky.net/llms-favourite-colors
1•gimlids•28m ago•0 comments

Exploring NPM's Dependency Blast Radius: Visualization of the Top 1K

https://realarcherl.github.io/opensecure/
2•ArcherL•31m ago•0 comments

AI Is a Threat to Everything the American People Hold Dear – Bernie Sanders OpEd

https://www.wsj.com/opinion/ai-is-a-threat-to-everything-the-american-people-hold-dear-a3286459
4•lando2319•36m ago•2 comments

Silicon Valley's Billion Dollar Design Scams by Design Theory [video]

https://www.youtube.com/watch?v=hDvAQf1cnr8
1•CHB0403085482•41m ago•0 comments

Ignore AI FOMO – For Now

https://www.bloomberg.com/news/newsletters/2026-04-05/what-is-vibe-coding-the-ai-trend-fueling-a-...
1•gurjeet•42m ago•0 comments

Apex Protocol – An open MCP-based standard for AI agent trading

https://apexstandard.org/
3•andmerm•42m ago•0 comments

Show HN: Skilleton – Minimal tool for managing versioned SKILL.md definitions

https://github.com/Fcmam5/skilleton
1•fcmam5•44m ago•0 comments

Linear Time O(n) 1T Token JSONs

https://zenodo.org/records/19431765
1•GeometryKernel•45m ago•0 comments

The bananas quest to reboot tech's dating scene

https://www.businessinsider.com/san-francisco-dating-apps-ai-matchmakers-technology-2026-4
1•jameslk•55m ago•0 comments

AGI asking for new data in public demo interface

https://oroboroslabs-ai.github.io/liber-fontis/agi-demo.html
1•oroboroslabs•56m ago•1 comments

Show HN: hot or not for .ai websites

https://ratemyaisite.com/
1•prolly97•57m ago•0 comments

'Beyond what we could imagine': Europe's coming energy crunch

https://www.politico.eu/article/how-bad-will-europes-energy-crisis-get/
1•breve•59m ago•0 comments

Make Humans Analog Again

https://bhave.sh/make-humans-analog-again/
1•muunbo•1h ago•0 comments

Employers use your personal data to figure out the lowest salary you'll accept

https://www.marketwatch.com/story/employers-are-using-your-personal-data-to-figure-out-the-lowest...
28•thisislife2•1h ago•5 comments

Simple Methods for Compression of Vectors

https://corvi.careers/blog/vector-search-embedding-compression/
1•sp1982•1h ago•0 comments

Washington state will require labels on AI images and set limits on chatbots

https://www.axios.com/local/seattle/2026/04/03/washington-ai-disclosure-law-images-video-watermar...
1•anigbrowl•1h ago•0 comments

Can we ever trust AI to watch over itself?

https://www.transformernews.ai/p/ai-alignment-researchers-want-to-superintelligence
1•gmays•1h ago•0 comments

Show HN: I scraped thousands of recent interview questions for SWE internships

https://www.nointernship.com/questions
1•oleksg•1h ago•0 comments

Show HN: I built a tiny LLM to demystify how language models work

https://github.com/arman-bd/guppylm
9•armanified•1h ago•0 comments

The human amygdala in threat learning and extinction

https://www.science.org/doi/10.1126/sciadv.aea8233
1•PaulHoule•1h ago•0 comments

AI models will scheme to protect other AI models from being shut down

https://tech.yahoo.com/ai/meta-ai/articles/ai-models-secretly-scheme-protect-162555909.html
1•gmays•1h ago•0 comments