Claude Code
Anthropic
My main coding agent. It writes and reviews most changes to this site, from article fixes to the Worker that routes every request.
claude.com ↗Stack
My AI stack
The tools I build agents with and run this site on, and what each one is for. When something joins or leaves the list, this page changes and the changelog says why.
Updated · 10 tools · Changelog
Agents that write the code
Two coding agents on the same repository, reading the same instructions.
Codex
OpenAI
The second coding agent on the same repo. Both read one AGENTS.md, so either can pick up where the other stopped.
openai.com ↗
Claude app
Anthropic
The desktop home for my Claude Code sessions, with connectors to PostHog, Beehiiv and Cloudflare.
claude.ai ↗Research and the browser
Finding sources, and doing the work that needs a signed-in browser.
Exa
Exa
Search built for agents. It returns pages and their text, so a research run starts from sources instead of a results page.
exa.ai ↗
Aside
Aside
An AI browser signed into my accounts. It reads Search Console, re-checks job postings before pay data ships, and edits my X profile.
aside.com ↗Keys and network
Where the secrets live and how the machines reach each other.
Bitwarden
Bitwarden
Every password and API key, with the ones agents are allowed to use kept apart from the rest.
bitwarden.com ↗
Tailscale
Tailscale
A private network across my machines, so work started on one Mac can reach the others.
tailscale.com ↗Running this site
Hosting, analytics and the newsletter.
Cloudflare
Cloudflare
Hosts this site: static pages on Workers, a router Worker in front of them, and D1 for newsletter signups.
cloudflare.com ↗
PostHog
PostHog
Analytics for the site: which pages get read, where readers come from, and which forms convert.
posthog.com ↗
Beehiiv
Beehiiv
Sends Still Building, the newsletter.
beehiiv.com ↗Moved on from: Cursor, Conductor.
Changelog
First version: ten tools. Cursor and Conductor were in the stack earlier and are no longer in daily use.
Newsletter
Still Building
When a tool earns a place here or gets cut, the newsletter hears why first.
Logos belong to their owners and appear here only to identify each tool.