Steve Tran Blog https://nhuantranduc.dev/blog All about Data and Artifical Intelligence en-us tranducnhuan@hotmail.com (Steve Tran) tranducnhuan@hotmail.com (Steve Tran) Fri, 23 Oct 2026 00:00:00 GMT https://nhuantranduc.dev/blog/claude-opus-system-prompt-evolution What Claude Opus System Prompts Teach About Agent Design https://nhuantranduc.dev/blog/claude-opus-system-prompt-evolution Changes in 12 published Claude Opus system prompts, from Opus 3 through Opus 5.5, and lessons for prompt design. Fri, 23 Oct 2026 00:00:00 GMT tranducnhuan@hotmail.com (Steve Tran) AILLMprompt-engineeringagents