# How Sean Goedecke actually uses coding agents

Writing on AI and big tech

**If you take one thing:** `30-second triage`, rejects most agent attempts. he lets agents attempt every change, throws most away after a half-minute skim, and only reviews in depth the attempt worth keeping.

- **Agent:** GitHub Copilot app (app) ([source, 2026-05-17](https://www.seangoedecke.com/how-i-use-llms-in-2026/))
- **Agent:** Copilot CLI (cli) ([source, 2026-05-17](https://www.seangoedecke.com/how-i-use-llms-in-2026/))
- **Model:** GPT-6-Astra ([source, 2026-09-25](https://www.seangoedecke.com/you-should-all-be-asking-way-more-questions/))
- **Model:** Claude Opus 5.5 ([source, 2026-09-25](https://www.seangoedecke.com/you-should-all-be-asking-way-more-questions/))
- **Review:** Skims each attempt for ~30 seconds, rejects most, then fully reviews the one he keeps ([source, 2026-05-17](https://www.seangoedecke.com/how-i-use-llms-in-2026/))
- **At once:** 6–7 sessions per task ([source, 2026-08-07](https://www.seangoedecke.com/how-to-keep-thinking/))
- **Harness:** GitHub Copilot app; separate sessions per task for exploring, implementing, reviewing and testing ([source, 2026-08-07](https://www.seangoedecke.com/how-to-keep-thinking/))
- **Skills:** extract-features-clamp-inference ([source, 2026-02-17](https://github.com/sgoedecke/skills/tree/0f38b38c2ef1691a28340d8faa9abfe39467c99d/skills))
- **MCP servers:** runpod ([source, 2026-09-15](https://www.seangoedecke.com/tell-agents-the-why/))

## In their words

> Now I use the GitHub Copilot app a lot (tens of sessions per day).

> For instance, if my nvm installation is not switching my Node version correctly, I will often open a Copilot CLI agent and ask it to figure it out.

> I mostly work with GPT-6-Astra and Claude Opus 5.5.

> I mostly work with GPT-6-Astra and Claude Opus 5.5.

> I routinely use six or seven different agent sessions on the same task: one for exploration, two or three for trying out different implementations, two or three for review, one for manual testing, and so on.


Archetype (our label): Orchestrator. Newest source: 2026-09-25.
Card: https://www.prehistoriq.com/stacks/sgoedecke/ · Data: https://github.com/prehistoriq/stacks/blob/main/data/stacks/sgoedecke.json