articleJanuary 5, 2026

Opus 4.5 is Going to Change Everything

AI coding agents can replace developers for many tasks—Claude Opus 4.5's self-correction capabilities make human code review increasingly optional.

The Claim

Burke Holland, a Microsoft developer advocate, argues that Claude Opus 4.5 represents a fundamental shift from AI as coding assistant to AI as genuine code generator. His evidence: four substantial projects built with minimal code comprehension, including applications in languages he doesn't know (Swift).

Projects Built

  1. Windows Image Conversion Utility - Right-click context menu tool with distribution site and GitHub Actions automation
  2. Screen Recording/Editing App - Video editing with GIF recording, shapes, cropping, and blur effects
  3. AI Posting Utility - Mobile app using Firebase for photo upload, AI captions, and scheduled Facebook posting
  4. Order Tracking & Routing App - Email parsing, route optimization, and drive time tracking

The Controversial Stance

When asked about the risk of not understanding the code:

"I'm genuinely not sure that they do" need human review given Opus 4.5's self-correction capabilities.

Holland acknowledges security remains his biggest concern, estimating only 80% confidence in application security.

AI-First Coding Philosophy

Holland shares a custom agent prompt prioritizing LLM maintainability over human readability:

  • Explicit, flat code structures
  • Minimal abstractions
  • Linear control flow
  • Modules designed for regeneration

He uses secondary prompts for refactoring opportunities and security vulnerabilities, treating the AI as both author and reviewer.

The Takeaway

"Make things. Stop waiting to have all the answers...you can make them faster than you ever thought possible."

Connections

  • we-removed-80-percent-of-our-agents-tools - Both use Claude Opus 4.5 and trust the model's reasoning. Vercel's experience validates Holland's claim that advanced models work better with less human scaffolding.
  • vibe-coding-for-production-quality - Presents the counterargument: experienced engineers warn that "code is 30% of the work" and AI requires heavy guardrails for production quality. Holland's optimism contrasts sharply with this thread's skepticism.

Connections (12)