All Data and AI Weekly #238-20April2026

All Data and AI Weekly #238-20April2026 ( AI, Data, Agentic AI, Cortex Code, NiFi, Iceberg, Polaris, Streamlit, Python, Java, SQL, MCP, LLM, RAG, Cortex AI, AISQL, Search, Unstructured Data ) Tim's Corner: Agents Get Report Cards, Polaris Graduates, and JSON Goes Turbo Welcome to issue 238! This week Snowflake delivered a trio of engineering deep dives that show the platform maturing fast. Cortex Agent Evaluations hit GA with the research-backed Agent GPA framework - Goal, Plan, Action metrics t