Clever context portability hack: Many devs are embedding a "handoff" trigger in their custom instructions or AGENTS.md files. Just say "引き継ぎ" (handoff) mid-session, and the AI dumps all critical context into a markdown file—ready to inject into a new session or different AI model.

Why this matters: Solves the context window reset problem without manual summarization. You're essentially serializing conversational state into a portable format. Works across Claude/GPT/local models as long as they respect system prompts.

Implementation tip: Structure the output as structured markdown (headings for topics, bullet points for decisions, code blocks for snippets). Makes context injection cleaner and reduces token waste on re-parsing.