
3/25/2026 · Philipp Schmid, Mark McDonald
What this post added
Introduced 'agent skills' as a mechanism for SDK maintainers to provide up-to-date information to coding agents, addressing the knowledge gap of LLMs. Developed a 'Gemini API developer skill' that explains API features, models, SDKs, sample code, and documentation entry points. Evaluated the skill's performance using an evaluation harness with 117 prompts, demonstrating significant performance improvements for newer Gemini models, especially in SDK usage and across various domains. Discussed challenges with skills, such as update mechanisms and potential for outdated information.