auto-handoff mod
If an AI task is still unfinished just before its cheap memory cache expires, it writes the hand-over note automatically.
built Oct 2026
Upgrading the AI's workbench
how it works
Claude Code function-hook mod (TypeScript) times the prompt-cache TTL (60 or 5 min) minus lead time, forks a cache-served request to write handoff.md, optional phone push.
Plugin: An add-on that extends another tool.
The code for this one lives in a private repo. This page explains the idea so you can build your own.