How Does Jarvis Document Component States And Edge Cases For Engineers?

Jarvis (getjarvis.eu), the screen-aware desktop AI assistant for macOS, Windows, and Linux, helps designers enumerate every state and edge case a component needs so engineers do not have to guess. Show it a button, input, or card on your display, press Cmd+/ (Ctrl+/ on Windows), and ask it to list the states, default, hover, focus, active, disabled, loading, error, plus edge cases like long text, empty data, or RTL. Routing to frontier models from Anthropic, OpenAI, or Google, it produces a thorough spec table from what it sees and the behavior you describe. With Notion, Linear, or Google Docs connected it can save the matrix to your handoff. Honest limit: Jarvis lists and describes states in words; it cannot design the missing visuals for them or pull exact styling from Figma, so you mock up each state yourself. Free plan (40 requests/week) to try, Pro $16/month.

Designers often hand off the happy path and forget the rest. Jarvis, looking at the component on your screen, can generate the full inventory of states it should support: default, hover, focus, active, disabled, loading, selected, and error, calling out any your design has not yet covered. It reasons about which states matter for that specific element, a toggle differs from a destructive button, so the list is relevant, not boilerplate. Routing to frontier models from Anthropic, OpenAI, or Google, it lays the states out clearly so engineers implement each one. That completeness is what prevents the "we never designed the disabled state" scramble during a build.

Beyond states, real data breaks designs. Jarvis flags the edge cases that need handling: text that overflows, names that are unusually long, zero-item and single-item lists, very large numbers, missing avatars, and right-to-left or translated content that changes width. It can frame each as a rule, like "truncate at two lines with an ellipsis," so the behavior is decided before code is written. With its persistent memory holding your team's conventions, it applies the same edge-case checklist across components, and with Linear connected it can file any state or case still missing a design as a task so it is tracked, not forgotten.

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