Skillsync Review 2026: Portable Agent Chat Sessions Across Coding Agents
Skillsync portable agent chat sessions work by deterministic translation, not summarization: it reads a session transcript from one coding agent, converts it into the target agent’s native format, and opens it so you continue where you left off. Tool calls and reasoning traces ride along. It is a YC W26 product built on an open-source Rust engine, txcript. What does Skillsync actually do (and what is it not)? Skillsync is a macOS desktop app plus a CLI (skl) plus an MCP server. Its one-line pitch, as listed on the Y Combinator company page, is “Notion for AI chats” — a searchable, portable store of every session you have ever run, across every harness you use. The marketing page frames it as: “Your AI sessions made portable across every agent and teammate.” ...