Service-specific context for each connected integration (gmail.md, slack.md, notion.md). Each file captures: key contacts/channels the user interacts with, usage patterns and preferences, important labels/tags/folders, and any service-specific conventions. Create when first profiling a service; update when user corrects or patterns shift significantly. Don't duplicate raw API data—summarize what matters for task execution. Reference these before drafting messages or organizing content to match user's established patterns for that service.