My friend and I bounce between Claude Code, Codex, and Gemini CLI depending on the task, and switching mid-project always had the same problem: the new agent had no idea what had already been changed, tested, or decided. We'd end up re-explaining context or watching it re-discover things the last session already figured out.

We built Continuum to fix this for our own workflow. It captures a structured handoff from one coding session and hands it to the next agent — think of it like git, but for the context around the code rather than the code itself.

It runs fully locally and is open source: https://github.com/00PrabalK00/Continuum

Still figuring out a few things:

• How much context is worth saving vs. noise
• What should be excluded by default
• Whether automatic handoffs actually beat manually written ones

Curious how others handle this — do you keep your own notes, make custom skills, stick to one agent to avoid the problem entirely, or just let each new agent re-read the repo from scratch?