Hover Active Focus Checklist
Require every interactive component to define all of its states before it ships.
What it adds
A per-component state matrix covering rest, hover, active, focus, selected, disabled, and loading.
What your agent is told to do
5
What your agent is told to do
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Enumerate the interactive components the app actually ships — buttons, links, inputs, selects, rows, cards, tabs, menu items — and give each a written matrix covering rest, hover, active, visible focus, selected, disabled, and loading. What selected and disabled mean is owned by Selection State Pattern and Disabled State Standards; this brief owns the guarantee that no component leaves a cell of the matrix empty.
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Express each state as a change of shared tokens rather than a bespoke rule per component, so a button and a table row communicate the same state with the same values.
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Specify what happens when states combine, because they will: focused and disabled, selected and hovered, active and loading. Choose the winner for each pair rather than letting stylesheet order decide it.
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Hold dimensions constant across states. A border that only appears on hover, or a heavier font weight on selection, shifts the layout under the cursor — reserve the space at rest instead.
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Do not attach meaning that exists only on hover. Touch and keyboard users never reach a hover state, so anything discoverable there must also be present on focus or permanently visible.
Edge cases it handles
7
Edge cases it handles
7- Hover on a touch device is either absent or sticks after a tap, leaving a row highlighted long after the user has moved on. Treat hover as decoration, never as the only route to an action.
- Keyboard focus and selection routinely land on the same element and must stay separately identifiable — a user tabbing through a list needs to see where they are as well as what they have chosen.
- Combined states are where the matrix breaks. A disabled control that still lights up on hover, or a focused row whose outline is overwritten by the selection style, both read as defects.
- Any state that adds a border, an inset shadow, or a heavier weight has to be accounted for at rest, or the element grows and pushes its neighbours sideways.
- Focus indicators must clear both the element's own background and whatever sits next to it, including items at the edge of a scrolling container where an outline is easily clipped.
- Users who have asked for reduced motion must still get the state change; it is the transition that is dropped, not the state.
- The matrix has to cover custom controls assembled from generic containers, which is precisely where focus and disabled states are usually missing.
Definition of done
9
Definition of done
9- Every interactive component has a documented state matrix with no empty cells.
- States are expressed through shared tokens rather than per-component rules.
- Combined states have a defined precedence and render predictably.
- No state change alters an element's dimensions or shifts its neighbours.
- No action or information is reachable only through hover.
- Focus is visible on every focusable element and is distinguishable from selection.
- State transitions honour a reduced-motion preference without losing the state itself.
- The feature matches the existing design system.
- No existing functionality is broken.
Related features
Feedback Widget
Feedback Widget
Let anyone report a bug or send a comment from the page they are looking at.
What it does
An always-available launcher that opens a short feedback form and submits it with page context attached.
How it works
- 1 Put a single persistent launcher in one corner of the app and open a compact form in place. Do not route the user to a separate feedback page and lose the context they were about to describe.
- 2 Attach the current URL, the app version, the viewport size, the signed-in account, and a short trail of recent client errors automatically, so the reporter does not have to describe where they were.
- 3 Show the captured context to the user before they send it, in a collapsible section, and let them remove it. Silent collection of screen state is a trust problem.
Copy the prompt
No account needed
Add this feature to my app:
https://addthisfeature.com/x/feedback-widget
Interactive Transcript
Interactive Transcript
Put the transcript next to the player so clicking any line jumps playback to that moment.
What it does
A time-aligned transcript panel beside the audio or video player, with click-to-seek, a moving highlight, and in-transcript search.
How it works
- 1 Render the transcript from the timestamps the app already stores. If Voice Transcription exists, extend its output and its data model rather than producing a second transcript with its own timings.
- 2 Make every line a real seek target: clicking or pressing enter on a line moves playback to that time and keeps focus where the user left it.
- 3 Highlight the line currently being spoken and keep it in view as playback advances, using the player's own time updates rather than a separate timer.
Copy the prompt
No account needed
Add this feature to my app:
https://addthisfeature.com/x/interactive-transcript
Reschedule and Cancel Links
Reschedule and Cancel Links
Give every booking confirmation a link the person can use to move or cancel it.
What it does
Tokenised self-service links in booking confirmations and reminders that let the attendee change or cancel without signing in.
How it works
- 1 Put the two links in the booking confirmation, in every reminder, and on the confirmation screen itself. A person looking for the link is usually looking in the last message they received.
- 2 Land the link on a page that restates the booking in plain terms before offering any action, so someone who opened it by accident can see what they are about to change and back out.
- 3 Reuse the app's existing Signed Share Links mechanism for token generation, expiry, and revocation rather than inventing a second token scheme. If the app has Magic Link Sign-In, note that this link grants access to one booking only and must never establish a full session.
Copy the prompt
No account needed
Add this feature to my app:
https://addthisfeature.com/x/reschedule-and-cancel-links
How it works
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1
Copy the link
Grab the Markdown instruction URL for this feature.
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Give it to your AI
Paste it into Claude Code, Cursor, v0, Lovable — whatever you build with.
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It inspects, then implements
Your agent reads your existing app first, then adds the feature to fit it.
Works with your stack
These instructions are written to adapt. They tell the agent to detect your framework, match your existing design system, and reuse what you already have — rather than assuming a particular stack.
Need it tighter than that? Customize the feature and tell it exactly what you're running.