Kuang Grade Mark Eleven: Browser Navigation & Multi-Tab Playbook

1. Fast & Speculative Navigation

Mark Eleven features a 0ms Speculative Prerender Engine:

• While interacting with a search results page or article list, call prerender_links().
• Top candidate URLs are pre-fetched and fully hydrated in background views with host stealth headers.
• When navigate_to(url) is later called, the view is elevated instantly in 0ms without a cold network fetch.
• All pre-rendered content is also automatically distilled and indexed into LanceDB Cortex vector memory, making it immediately queryable via recall_memory(query).

2. Multi-Tab Orchestration

• new_tab(url): Spawns an isolated tab.
• switch_tab(tab_id): Focuses another tab without destroying state.
• close_tab(tab_id): Frees memory.
• list_tabs(): Returns all active tabs and current URLs.

3. Session Persistence (context profiles)

• context_save(name): Snapshots cookies, localStorage, and sessionStorage.
• context_open(name): Rehydrates an authenticated session on demand.
• context_list() / context_delete(name): Enumerate / remove saved profiles.
• Switching profiles is how you change authenticated identities. (Legacy save_session / restore_session / list_sessions still work but are hidden aliases.) See partition 4 for the primitives, wait vocabulary, and workflow recipes (R1–R5) that tie navigation, observation and network capture together.