Agent Skills: gemini-batch

Use when the user says 'run this prompt over all the documents', 'process thousands of PDFs', 'extract fields from every filing', 'bulk LLM job', 'submit a batch job', 'use the Gemini Batch API', 'upload files to Gemini', or 'this is too many to do one at a time' - any large-scale LLM extraction or classification over many files. ALWAYS load before writing Gemini batch code, including the small test run.