Following the recent discussion on files as the ideal interface for agents [0], this might be an interesting exploration.

llm9p is a small, experimental 9P server that lets you interact with LLMs as a filesystem.

[0] https://news.ycombinator.com/item?id=47286408

How can it set the system prompt when using Claude Code, when even Claude code itself doesn’t support adding to the system prompt? It does have “—appendSystemPrompt” but despite its name that’s actually just a user message being sent upon startup.