The gateway reads each request's prompt into its parts (system prompt,
tools and MCP servers, memory, files, tool results, chat), measured
against the model's window and calibrated to the tokens the vendor
counted. Routing shows a request's window as a card: a 400-cell grid by
part, a hover naming what is largest in a cell, and the contents by part.
The Usage page's Context tab scores each agent out of 100 (cache reuse,
how lean it starts, how fast it grows, how reliably it answers), tags it
(lean, cache-friendly, mcp-heavy, compacts, near-full…), and draws each
session's growth with its latest request's card.
Older Safari (15) gets media-query and solid-colour fallbacks for the
card's container queries and color-mix.
yetone
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