Find bugs and ship a pull request entirely from your phone with Claude Duet
Matt Van Horn asked Claude Duet to make something for his last30days project; it found four YouTube-related issues, and when he said "make a PR to fix it" it did, almost without questions.
Source
@mvanhorn on X · 2026-10-22
Written in our own words. Credit to the original author. Link checked 2026-10-23.
What they did
Matt Van Horn asked Claude Duet to make something for his last30days project; it found four YouTube-related issues, and when he said "make a PR to fix it" it did, almost without questions.
Result (as claimed)
A high-quality PR was made, merged, commented and the issues closed entirely from mobile.
Tools they used
Cost: GitHub: free plan, paid from $4/user/mo. Checked 2026-10-14.
Set it up
Pick a contained repo or task
Start on a branch or side project where mistakes are cheap.
Install and configure
Set up Claude Duet, GitHub. Read what it can run on your machine and limit permissions where possible.
Run it on a real task
Give it a well-scoped issue and let it work. Review the diff like any pull request.
Add guardrails
Keep tests and CI in the loop, and never let an agent push to main or touch production secrets unattended.
Copy the full setup prompt
Paste into your agent and it will walk you through the setup, asking before anything that sends, posts or spends.
You are helping me set up this AI use case end to end in Claude Code. Goal: Find bugs and ship a pull request entirely from your phone with Claude Duet What the original author did: Matt Van Horn asked Claude Duet to make something for his last30days project; it found four YouTube-related issues, and when he said "make a PR to fix it" it did, almost without questions. Reported result (as claimed by the author): A high-quality PR was made, merged, commented and the issues closed entirely from mobile. Source: https://x.com/mvanhorn/status/2113170475094577641 Tools they used: Claude Duet, GitHub Category: Dev & ops Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
You are helping me set up this AI use case end to end in Codex. Goal: Find bugs and ship a pull request entirely from your phone with Claude Duet What the original author did: Matt Van Horn asked Claude Duet to make something for his last30days project; it found four YouTube-related issues, and when he said "make a PR to fix it" it did, almost without questions. Reported result (as claimed by the author): A high-quality PR was made, merged, commented and the issues closed entirely from mobile. Source: https://x.com/mvanhorn/status/2113170475094577641 Tools they used: Claude Duet, GitHub Category: Dev & ops Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
You are helping me set up this AI use case end to end in Grok Bot. Goal: Find bugs and ship a pull request entirely from your phone with Claude Duet What the original author did: Matt Van Horn asked Claude Duet to make something for his last30days project; it found four YouTube-related issues, and when he said "make a PR to fix it" it did, almost without questions. Reported result (as claimed by the author): A high-quality PR was made, merged, commented and the issues closed entirely from mobile. Source: https://x.com/mvanhorn/status/2113170475094577641 Tools they used: Claude Duet, GitHub Category: Dev & ops Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
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Guides for this use case
How to get AI code review on your pull requests · How to use Claude Duet: real examples and tips · How to control coding agents from your phone · How to automate work with n8n and AI
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