Agent Notes: background memory system that learns from emails, chats, and explicit
saves
- Background service (agent_notes.ts) runs periodically, collecting user-sent
emails, copilot conversation history, and save-to-memory inbox entries
- Agent (agent_notes_agent.ts) processes all sources with workspace tools, deciding
what to update: user.md (timestamped facts), preferences.md (general rules),
style/email.md (writing patterns), and topic-specific files as needed
- save-to-memory builtin tool lets the copilot proactively note preferences during
conversations
- user.md and preferences.md injected into copilot system prompt on every turn;
other files listed for on-demand access
- Agent manages timestamp freshness on user.md: refreshes confirmed facts, removes
stale transient ones
