Skillsync makes AI coding sessions portable across agents without re-explaining context

Launch HN: Skillsync (YC W26) – AI chat sessions made portable across agents

Skillsync, a YC W26 project, packages chat sessions from local coding agents like Claude Code, Cursor, and Codex into portable context. Users can move a session from one agent to another and continue working without re-explaining anything. It offers a macOS desktop app and a CLI, with a local-first, no-lock-in approach. Community feedback includes migrating 7GB of Cursor sessions to Claude Code in minutes and building decision traces from agent sessions. The post doesn't disclose pricing details or team size.

Why it matters: YC W26 launch tackling context lock-in across AI coding tools, with a working product (macOS app + CLI) and community validation (7GB session migration). Hits all three HKR axes, but early-stage with unknown user scale—scores 72 at the featured threshold.