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/plugin marketplace add anthropics/claude-code
/plugin install frontend-design@claude-code-plugins

"use the frontend-design plugin to redesign our newsletter while sticking to the policyengine design principles"

Read this post from @daphnehansell.bsky.social and me on the Effective Altruism Forum for more: forum.effectivealtruism.org/posts/AQvSij...

We built GiveCalc because most donation calculators just multiply by your tax bracket. That misses a lot: standard vs. itemized thresholds, state taxes, future-dated policy, new HR1 provisions.

PolicyEngine's tax models handle the full complexity. GiveCalc makes them accessible.

Important read on fiscal transparency.

While CBO is taking commendable steps by expanding its GitHub presence, Rauh & Jaros are right: full replicability should be the standard for them and JCT.

Open source builds trust and accuracy. www.wsj.com/opinion/the-...

Rep Tlaib's press release cites David's PolicyEngine-powered analysis: tlaib.house.gov/posts/tlaib-...

Great to see Rep Tlaib's team use PolicyEngine to design her new policy reform.

I had a blast making this with Claude Code - both the animation and the spooky soundtrack, which it composed in Python.

github.com/policyengine...

Our AI journey continues - excited to share our Claude Code plugin soon!

Thanks for this data point. Is there an extract on Californians you can point to? I didn't see state there.

Additional people have some chance of being in the phase-in range on 2026-12-31 (including some currently outside California) who may plan accordingly over the coming 14 months.

California's wealth tax proposal isn't marginal: At $2B wealth, you'll pay 5% on the full $2B ($100M).

To avoid a cliff, they phase in the 5% over $1B to $1.1B wealth. You pay $0 at $1B and 5% at $1.1B. That's $55M, or a 55% tax on tha $100M marginal wealth.

Something about being in California brings out the ballot measure analyst in me!

I have some free time Thursday and Friday afternoons - shoot me a message if you'd like to connect in LA. And you can RSVP to the event here:
forms.zohopublic.com/imaginela1/f...

Heading to LA this week for Benefit Navigator's event.

Their platform helps families and case managers navigate public benefits and tax credits - powered by the @us.policyengine.org API for tax and benefit calculations. Excited to see tech and policy come together to expand access.

Tomorrow evening I'll be celebrating the 13th anniversary of the @opengovhub.bsky.social, @us.policyengine.org's new home in DC. I'll also give a short talk on our work to promote open governance and transparency, the mission of the space and our neighbor organizations. Tickets still available!

ChatGPT estimates the anti-Israel boycott against Shouk increased their risk of closure by 40% this year.

Links:
instagram.com/p/DHWA8BWJHl6
washingtonsocialist.mdcdsa.org/ws-articles/...
instagram.com/p/DPUllyAjkxb
chatgpt.com/share/68e223...

Disappointed that the plant-based Shouk, my favorite fast-casual place in DC, has closed. Anti-Israel groups targeted it because an Israeli immigrant owned it, and are now cheering their victory.

Agentic AI coding tools continue to inspire us to turn everything into software.

Join us at our new home in downtown DC, the @opengovhub.bsky.social, for a celebratory happy hour on Oct 22: luma.com/lnrzph2h

Alaska's Fairbanks region has the highest second-lowest-cost silver plan (a key PTC ingredient) for older residents.

As a result, a married couple, each 64 years old earning $83k, would gain $57,292 in 2026 if the enhanced subsidies are extended. They'd get some PTC with up to $756k income.

Our new ACA calculator shows how extending the enhanced premium tax credits would affect households.

An extreme case: A 64-year-old in Fairbanks, AK would gain $655 in 2026 if they earn $61k, but gain $26,861 if they earn $62k.

Try it here: policyengine.org/us/aca-calc

Come by tonight if you're in London!

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