Microsoft’s SkillOpt Shows Optimized Agent Skill Artifacts Transfer Across Model Scales and Between Codex and Claude Code Harnesses
MarkTechPost 2 months ago 38 ● 5 sources
Microsoft researchers developed SkillOpt, a text-space optimizer that trains natural-language skill documents to improve agent performance while keeping target models frozen. A skill trained on Codex for spreadsheet tasks scored 81.8 on Claude Code, exceeding Claude Code's own in-domain result of 80.4, demonstrating strong cross-harness transfer. Procedural skills like spreadsheet inspection transfer well across models and harnesses, while reasoning-heavy skills remain more tied to their training environment, enabling optimize-once-deploy-everywhere workflows.