Design-only (no code yet): an MBSE subsystem model for a chicken mascot
that roams the desktop shell, is draggable, opens a Sims-style nested
radial menu, and has a tamagotchi lifecycle (egg -> chick -> adult) that
reacts to real app activity (chat streaming, knowledge-graph writes,
signals). Everything (animations, autonomous behaviors, menu actions,
environment reactions) is scoped as a data-driven registry for easy
extension.
- docs/mascot/README.md: subsystem Model conforming to docs/mbse's
Holt-based Framework — mission/boundary, requirements, structural view
(module registry map), behavioral view (behavior FSM + lifecycle state
machines + a stimulus sequence diagram), interfaces view (which web
stores it observes, read-only), extension guide, verification view.
- plans/2026-07-20-desktop-mascot.md: the concrete file-by-file
implementation plan for web/src/lib/mascot/ derived from the model,
with an ordered build sequence and a manual browser verification
checklist.
- Indexed both in docs/index.md and plans/index.md.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
dtoro
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