Never Twice dont let the AI agent do mistake again

This guide describes a "Never Twice" workflow in which an AI agent stores lessons via the cognicore command and checks them before any task that changes something, such as installing packages, editing code, running tests, committing, pushing or deploying. Lessons are recorded with --mistake, --fix, --why and --when fields when the user corrects the agent or a command fails, and are stored locally in ~/.cognicore/mcp/lessons.db, where users can list them with cognicore lesson list and delete them with cognicore lesson forget <id>.