Customizable Dashboard Widgets
Let people arrange the panels that matter to them.
What it adds
A widget system with a catalog, add and remove, drag-to-arrange layout, and persisted per-user layouts that survive permission and data changes.
What your agent is told to do
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What your agent is told to do
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Define a widget contract — identifier, title, size constraints, required permissions, and configuration schema — and register every widget against it.
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Give users a catalog to add from, removal, and rearranging, with the layout saved per user.
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Persist layout per breakpoint, or persist one layout and define deterministic reflow rules for narrow screens. Do not save absolute positions and hope they still make sense on a phone.
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Revalidate every widget on load against current permissions and data. A widget the user can no longer see must be removed or shown as unavailable, never rendered with someone else's numbers.
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Put a ceiling on cost: cap concurrent expensive widgets, load them lazily below the fold, and give each one its own error boundary.
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Do NOT implement metric computation, pre-aggregation, date ranges, or chart accessibility here — those are owned by Analytics Dashboard. Generic list and table preference storage is owned by Persistent View Preferences. Widgets consume those; they do not reimplement them.
Edge cases it handles
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Edge cases it handles
7- A widget removed from the catalog in a later release will still appear in saved layouts — handle the unknown identifier instead of crashing the dashboard.
- A widget whose underlying data source is deleted must degrade to an unavailable tile, not an error page.
- Overlapping or off-grid tiles after a resize must be reflowed deterministically; two users on the same layout must see the same result.
- One slow widget must not block the rest of the dashboard from rendering.
- Always offer a reset to the default layout — it is the only recovery when a saved layout is unusable.
- An empty dashboard needs a real empty state pointing at the catalog, not blank space.
- Layouts saved by one user and cloned to another must be re-validated against the second user's permissions before rendering.
Definition of done
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Definition of done
8- Users can add, remove, and rearrange widgets, and the layout persists across sessions and devices.
- Widget configuration is revalidated against current permissions and data on every load.
- No layout produces overlapping or unreachable widgets at any supported width.
- Expensive widgets are capped, lazily loaded, and individually error-bounded.
- A reset-to-default action exists and works from a broken layout.
- Metric computation and chart rendering are deferred to Analytics Dashboard.
- The feature matches the existing design system.
- No existing functionality is broken.
Related features
UI Event Naming Schema
UI Event Naming Schema
Give every tracked interaction a name that still means the same thing in a year.
What it does
A documented vocabulary and structure for event names and properties, applied across the app's existing tracking.
How it works
- 1 Audit the events the app already sends and list them. The duplicates, the near-synonyms, and the ones nobody can explain are the reason the schema is needed, and they are also the migration list.
- 2 Fix a structure of object, action, and context: what was acted on, what happened to it, and where. Fix a closed set of actions — viewed, clicked, opened, submitted, selected, failed — and require every new event to reuse one of them.
- 3 Keep variable detail in properties, never in the name. A record identifier, a plan name, or a workspace slug baked into an event name produces thousands of unaggregatable one-off events.
Copy the prompt
No account needed
Add this feature to my app:
https://addthisfeature.com/x/ui-event-naming-schema
Data Table Cell Primitives
Data Table Cell Primitives
Render every kind of table cell the same way, wherever the table happens to be.
What it does
A shared set of cell renderers for numbers, dates, people, statuses, links, and row actions, used by every table in the app.
How it works
- 1 Catalogue the cell types the app's tables already render and reduce them to a small set: number and currency, date and relative time, person or avatar, status or badge, link or identifier, and an actions cell.
- 2 Separate each cell's underlying value from its presentation, so sorting, filtering, grouping, and export operate on the raw value while the user sees the formatted one.
- 3 Align and format numerically consistent cells the same way everywhere — figures right-aligned with tabular figures and a fixed precision per column, dates in the user's locale and time zone, currency with its code where more than one is possible.
Copy the prompt
No account needed
Add this feature to my app:
https://addthisfeature.com/x/data-table-cell-primitives
Segment Event Forwarding
Segment Event Forwarding
Send one clean stream of product events to Segment and let it fan out downstream.
What it does
A documented event schema and a single forwarding path emitting track, identify, group, and page calls with consistent identity.
How it works
- 1 Write the event schema before writing any code: the exact set of event names, the properties each carries with their types, and the traits attached to a user and to an account. Every downstream tool inherits this schema, so a name chosen carelessly is expensive to change later.
- 2 Establish one identity model and apply it everywhere. Use a stable internal user identifier that never changes, associate the anonymous identifier from the first visit with it at signup, and attach the account or workspace so downstream tools can roll events up by customer.
- 3 Route every event through one internal emitter rather than calling the provider from feature code. That emitter validates the event against the schema, drops or flags anything unrecognised, and is the single place where identity and default properties are attached.
Copy the prompt
No account needed
Add this feature to my app:
https://addthisfeature.com/x/segment-event-forwarding
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.