Dev Has Codex Build Its Own Frame Profiler to Auto-Optimize a Custom Game Engine
Dimillian · x · 2026-10-09
Developer Dimillian is building a custom engine for the game Dark Veil. He asked Codex to write its own frame profiling tooling, and now runs it in a loop to hunt for optimizations. He says the game will be much smoother soon.
Key points:
- The setting is performance tuning of a hand-rolled game engine, not generic code completion.
- The workflow has the coding agent first build the profiling tool, then use it to drive an automated optimization loop.
- A concrete example of an agent building its own tooling and self-iterating.
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