In short
2023: ChatGPT in the browser so I closed fewer Google/Yandex tabs. Late 2024: DeepSeek plus paste into the IDE, and the first thing other people saw was a Telegram Mini App Advent calendar for the company QA community. 2025: agents, MCP, RAG, a year to map the zoo instead of marrying one tool. 2025/2026 boundary: a company coverage dashboard in Cursor (early skills and a custom MCP). 2026: several agent runtimes next to Cursor, a live portal, test automation, and my own AI projects. Session counts are a lower bound. Some of the history lived only in web chats and then got wiped.