Sunday Signal

Sunday Signal

I built my AI a brain. It drafted this email.

Jul 5, 2026

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6 min read

I built my AI a brain. It drafted this email.

The second brain I built in a weekend, the agents it now feeds, and the loop that drafted this issue. Plus 3 AI things worth your attention.

Kalpesh Mistry
Kalpesh Mistry
I built a tool in 25 minutes. Then came the hard part.

Jun 28, 2026

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6 min read

I built a tool in 25 minutes. Then came the hard part.

Why building stopped being the hard part, the leap I finally made, and a 7th product nobody asked for. Plus 3 AI things worth your attention.

Kalpesh Mistry
Kalpesh Mistry
I asked an agent to audit my own work. Here's what it said.

Jun 21, 2026

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7 min read

I asked an agent to audit my own work. Here's what it said.

What 30 days of building in public looks like with cold eyes, the five things I'm stopping, and the lead magnet I finally shipped. Plus 3 AI things worth your attention.

Kalpesh Mistry
Kalpesh Mistry
Spire went live. Then it broke.

Jun 14, 2026

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6 min read

Spire went live. Then it broke.

The patches nobody saw, the hours that made them possible, and what "shipped" actually means. Plus 3 AI things worth your attention.

Kalpesh Mistry
Kalpesh Mistry
I shipped a game in 4 hours.

Jun 7, 2026

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7 min read

I shipped a game in 4 hours.

What changes when AI agents do the brainstorming, the building, and the boring parts. Plus 3 AI things worth your attention.

Kalpesh Mistry
Kalpesh Mistry
I got suspended. Then I built better.

May 31, 2026

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6 min read

I got suspended. Then I built better.

One bad Monday, a sturdier business on the other side, and the playbook I'd hand any founder. Plus 3 AI things worth your attention.

Kalpesh Mistry
Kalpesh Mistry
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