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Add mx divider <text> [-o], which fills a terminal with <text> rendered as large block letters, a visual separator for macOS Mission Control Spaces (for example an IN REVIEWS or PR REVIEWS window between clusters of work windows). Bare, it takes over the current terminal: clears it, draws the banner, and holds it on screen until Ctrl-C or q. With -o it opens a new fullscreen Terminal running the same banner (macOS). The text auto-scales to fill the terminal and re-renders on resize. The renderer is a zero-dependency 5x7 block font in @mx/core (renderBanner), so no figlet or banner binary is needed. The CLI divider.ts owns the clear, hold, cursor, and resize handling, and openFullscreenTerminal (factored out of openWorkLayout) powers -o. It touches no runtime state. core: renderBanner + the block font. cli: divider.ts, the divider dispatch in main.ts, help text. tests: 5 new cases (112 total). docs: commands, history, both READMEs, root CLAUDE.md. version 3.5.0 to 3.6.0.
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Summary
Adds mx divider [-o], which fills a terminal with rendered as large block letters, a visual separator for macOS Mission Control Spaces (for example an IN REVIEWS or PR REVIEWS window between clusters of work windows).
Bare, it takes over the current terminal: clears it, draws the banner, and holds it on screen until Ctrl-C or q. With -o it opens a new fullscreen Terminal running the same banner (macOS, UNSUPPORTED elsewhere). The text auto-scales to fill the terminal and re-renders on resize.
The renderer is a zero-dependency 5x7 block font in @mx/core (renderBanner), so no figlet or banner binary is needed. The CLI owns the clear, hold, cursor, and resize handling, and openFullscreenTerminal (factored out of openWorkLayout) powers -o. It touches no runtime state.
Runtime stays v3, no migration. typecheck, lint, tests (112), and build all pass.