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BLUEPRINT · DEVELOPER · DRAFT

Private-first coding assistant - architecture brief

How to design a coding assistant that learns from your work without leaking your repos. The architecture behind WHY AI IDE.

A draft architecture brief for the WHY AI IDE private beta.

What the brief covers

  • The learning signal pipeline: capture · curate · apply
  • Local vs cloud personalization tradeoffs
  • The four classes of signal we track (decisions, style, patterns, refusals)
  • The control surface: every signal is editable, exportable, deletable

The lesson (preview)

Cursor reads your code. A private-first assistant is designed to learn how you think - and to let you delete that learning when you want to. The architectural difference is small. The product difference is large.

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