Skill Claude CodeCodex
Architecture/conventions for the Echo browser SPA: Go stdlib server :3740, Vite-built TS+JS SPA (embedded web/dist), JSON envelope, WebSocket hub, chat tool loop, shared appdata echo.json, internal/tools registry, tool-generated media transport (Phase 0/1), and the file-browser image/video/audio preview surface…
Skill Claude CodeCodex
How Echo surfaces cross-surface/cross-tab alerts to the user: global WebSocket broadcasts (chatcompleted, planquestionsawaiting) mirrored by frontend notification modules that play sounds, show OS/browser Notifications, and deep-link on click.
Skill Claude CodeCodex
Build, validate, package, and stage optional Echo plugins using the Echo Plugin API v1 security and lifecycle contracts.
Skill Claude CodeCodex
Why the Echo SPA page scrolls/zooms out past the app on mobile, and how to find and prevent viewport overflow from escaped absolute-positioned badges.
Skill Claude CodeCodex
How workspace-scoped agent modes and the per-workspace default mode for new chat tabs are stored, served, and consumed.
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: