CogniCore Never Twice: an AI agent that records mistakes as lessons and checks them before acting

CogniCore's Never Twice tool lets an AI agent store lessons from mistakes via the `cognicore lesson add` command and check them with `cognicore lesson check` before any task that changes something, such as installing packages, editing code, running migrations or deploying. Lessons are matched by words and stored locally in `~/.cognicore/mcp/lessons.db`, with users able to list or forget them.