Invincat: A CLI agent with structured, tiered memory governance for long-term engineering collaboration

https://github.com/dog-qiuqiu/invincat As AI coding assistants enter real-world engineering workflows, the central challenge is shifting from "insufficient generative capability" to "uncontrollable long-term collaboration." In practice, engineering teams rarely lack the ability to get a one-off answer — the real difficulty is whether the system can persistently remember the right conventions, retire stale memories, isolate sensitive information, and maintain stable decisions across multi-turn ta