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Inside RepoPrompt: The Secret AI Prompt Tool Silicon Valley Engineers Are Using
Can simply "Vibe coding" with AI really replace the need for deep code context when building real applications?
Nathan Lands
May 07, 2025 • Estimated Reading Time: 3 minutes
RepoPrompt: The AI coding secret weapon used in Silicon Valley
Brought to you by: HubSpot
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Why this episode matters
“Vibe coding” tools like Cursor feel magical until they hit a real-world codebase. Eric explains where they break and why curated context still wins. You’ll see how RepoPrompt lets power users feed LLMs only the files and functions that matter, unlocking reliable refactors, test generation, and more.
What you’ll learn
The hidden pitfalls of vibe-driven prompting in large repos
How Repo Prompt’s Context Builder and Codemaps deliver laser-focused prompts
Practical ways to automate file rewrites with Gemini 2.5 or Claude 3
A live demo of rapid repo navigation for Flutter devs
What contextual prompting means for the future of engineering education and tooling)
Show notes (timestamps)
00:00 – Vibe coding myths unveiled
03:15 – Repo navigation for Flutter developers
06:37 – Gemini 2.5 extends model context
11:18 – Automating file rewrites with AI
15:33 – The next AI wave
20:58 – MCP: user-customizable tool integration
23:53 – Efficient AI tool chaining
28:32 – XR Interaction Toolkit developer tips
31:01 – AI’s impact on how we learn to code
Mentions & links
Eric Provencher on X – https://x.com/pvncher
Repo Prompt – https://repoprompt.com/
Unity AI – https://unity.com/ai
Cursor – https://www.cursor.com/en
Gemini – https://gemini.google.com/
Claude – https://claude.ai/
That’s all for today. Please consider sharing the newsletter with your friends if you think they’d enjoy it. 🙏
-Nathan