# How Geoffrey Litt actually uses coding agents

Malleable software, Notion

**If you take one thing:** `/explain-diff`, with a quiz before he ships. every agent change becomes a background-intuition-code explainer ending in five quiz questions, and he won't send code until he passes.

- **Agent:** Claude Code ([source, 2025-10-24](https://geoffreylitt.com/2025/10/24/code-like-a-surgeon.html))
- **Agent:** Cursor (ide) ([source, 2025-10-24](https://geoffreylitt.com/2025/10/24/code-like-a-surgeon.html))
- **Agent:** Codex CLI (cli) ([source, 2025-10-24](https://geoffreylitt.com/2025/10/24/code-like-a-surgeon.html))
- **Model:** Claude Opus 5 ([source, 2026-08-24](https://github.com/geoffreylitt/homepage/commit/ea712275a9ffd05f9b448652852726d37e2172d1))
- **Model:** Claude Fable 5 ([source, 2026-07-02](https://github.com/geoffreylitt/homepage/commit/9025712970f04625457fa9366ed3544531cbff0b))
- **Review:** Reads an explainer first, then the full diff; must pass a 5-question quiz before sending code on ([source, 2026-07-02](https://geoffreylitt.com/2026/07/02/understanding-is-the-new-bottleneck.html))
- **Harness:** Coding agents run from Notion; their plans land in shared pages the team comments on ([source, 2026-07-02](https://geoffreylitt.com/2026/07/02/understanding-is-the-new-bottleneck.html))
- **Rules file:** CLAUDE.md (imports AGENTS.md) ([source, 2026-08-13](https://github.com/geoffreylitt/super-skills/blob/2313512297e79fe020c4c18397b8598848890ae3/CLAUDE.md#L5-L6))
- **Skills:** explain-diff-html, explain-diff-notion ([source, 2026-06-28](https://gist.github.com/geoffreylitt/a29df1b5f9865506e8952488eac3d524))

## In their words

> Claude Code has been my go-to for long unsupervised sessions but Codex CLI is becoming a strong contender there too, possibly my new favorite.

> (eg, I like Cursor tab-complete here)

> Claude Code has been my go-to for long unsupervised sessions but Codex CLI is becoming a strong contender there too, possibly my new favorite.

> Co-Authored-By: Claude Opus 5

> Co-Authored-By: Claude Fable 5


Archetype (our label): Purist. Newest source: 2026-08-24.
Card: https://www.prehistoriq.com/stacks/geoffreylitt/ · Data: https://github.com/prehistoriq/stacks/blob/main/data/stacks/geoffreylitt.json