4.18.26 | Claude Design, measuring Claude 4.7's tokenizer costs, Smol machines – subsecond coldstart, portable virtual machines

This is a recap of the top 10 posts on Hacker News on Apr 18, 2026.

Feel free to leave feedback on Github: https://github.com/denolfe/hacker-news-highlights

(00:00) - Intro
(00:19) - Claude Design
(01:53) - Measuring Claude 4.7's tokenizer costs
(03:42) - Show HN: Smol machines – subsecond coldstart, portable virtual machines
(04:52) - All 12 moonwalkers had "lunar hay fever" from dust smelling like gunpowder (2018)
(06:12) - NASA Force
(07:23) - Are the costs of AI agents also rising exponentially? (2025)
(08:35) - Spending 3 months coding by hand
(09:45) - NIST gives up enriching most CVEs
(11:19) - Hyperscalers have already outspent most famous US megaprojects
(12:35) - Outro

Claude Design
https://www.anthropic.com/news/claude-design-anthropic-labs
https://news.ycombinator.com/item?id=47806725

Measuring Claude 4.7's tokenizer costs
https://www.claudecodecamp.com/p/i-measured-claude-4-7-s-new-tokenizer-here-s-what-it-costs-you
https://news.ycombinator.com/item?id=47807006

Show HN: Smol machines – subsecond coldstart, portable virtual machines
https://github.com/smol-machines/smolvm
https://news.ycombinator.com/item?id=47808268

All 12 moonwalkers had "lunar hay fever" from dust smelling like gunpowder (2018)
https://www.esa.int/Science_Exploration/Human_and_Robotic_Exploration/The_toxic_side_of_the_Moon
https://news.ycombinator.com/item?id=47808913

NASA Force
https://nasaforce.gov/
https://news.ycombinator.com/item?id=47807209

Are the costs of AI agents also rising exponentially? (2025)
https://www.tobyord.com/writing/hourly-costs-for-ai-agents
https://news.ycombinator.com/item?id=47778922

Spending 3 months coding by hand
https://miguelconner.substack.com/p/im-coding-by-hand
https://news.ycombinator.com/item?id=47807583

NIST gives up enriching most CVEs
https://risky.biz/risky-bulletin-nist-gives-up-enriching-most-cves/
https://news.ycombinator.com/item?id=47806777

Hyperscalers have already outspent most famous US megaprojects
https://twitter.com/finmoorhouse/status/2044933442236776794
https://news.ycombinator.com/item?id=47807619

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