olap instructions

chdb-io/chdb

Instructions file CodexOpenCode

Instructions for chdb-io/chdb, covering agents.md — chdb, 1. fully lazy execution architecture, 2. natural execution triggering (explicit calls prohibited), 3. unified architecture, simplicity first and 4. testing principles.

duckdb/duckdb-r

Instructions file CodexOpenCode

AGENTS.md instructions for duckdb/duckdb-r, covering working on duckdb-r, the first five minutes and everything else.