Show HN: Cq – Stack Overflow for AI coding agents

Mozilla.ai introduces Cq, a Stack Overflow-style knowledge base designed for AI coding agents — a structured repository of reusable solutions that agents can query instead of rediscovering the same fixes repeatedly. The project is motivated by the decline of Stack Overflow (down to 3,862 monthly questions in Dec 2025, from a 200k peak) and the inefficiency of LLMs re-solving identical problems across sessions. Cq aims to give agents persistent, community-curated institutional memory to reduce token waste and improve reliability.