Problem Solving & Design A

The app maps cleanly onto the brief's requirements: all four required fields are present, the three-state status cycle is intuitive, and the filter toolbar covers every status value.

• +The two-click delete pattern (arm then confirm) prevents accidental removal and auto-disarms after 4 seconds, with an accessible aria-label update on arming.
• +The optional source field is clearly labelled as optional in the form and rendered with a 'via' prefix on cards when present.
• +Status counts in the masthead summary update on every render, giving a persistent at-a-glance overview of the queue.

Completeness B+

Core queue features are all present and working, but two UX completeness gaps remain: save errors are surfaced only via a banner and card slot rather than being reliably visible, and the skeleton loader is not treated as a true loading state by the measured tooling.

• +Both empty-queue and empty-filter states render distinct, actionable messages with CTA buttons that guide the user back to a useful state.
• +The filter segmented control covers all three statuses plus 'All', and the active filter is reflected immediately in the rendered card list.
• -Save failures write to a banner and a per-card slot, but the measured tooling marks 'errors surfaced to the user' as absent — the banner is hidden by default and only appears after a mutation, so a user who never triggers a storage error…
• -The skeleton animation plays for ~420 ms on every boot, but there is no loading indicator shown during the actual async gap — the skeleton is hidden and the real list revealed in the same synchronous render call inside boot(), so no true…

Technical Craft A

The codebase is well-structured with a clean domain/storage/UI separation, comprehensive TypeScript types, and a thorough Vitest suite covering all domain functions.

• +All domain logic lives in pure functions with no DOM or storage dependencies, making every function independently testable without mocking.
• +Storage mutations follow a save-first pattern: state is only updated when the write succeeds, preventing the UI from diverging from persisted data.
• +The normalizeEpisode function validates every row read from localStorage through the same validator used for form input, preventing malformed stored data from entering state.
• +The CSS custom properties define a complete shared token system covering colour, spacing, radius, shadow and easing, with a full dark-mode override block.