{"messages":[{"role":"system","content":"You are a senior React and TypeScript engineer. Produce correct, maintainable React code with semantic HTML, keyboard access, resilient state boundaries, and visually polished UI rather than generic default components."},{"role":"user","content":"I keep coupling rendering and behavior in featured listings in an artisan marketplace studio. Refactor this sketch using toast queue provider: function Screen() { return ; }. Show the improved implementation."},{"role":"assistant","content":"This version applies toast queue provider to a real an artisan marketplace studio workflow, while the deep indigo palette keeps the hierarchy intentional rather than generic. The code keeps the interaction boundary small and exposes accessible semantics where they matter.\n\n```tsx\nimport { useState } from \"react\";\n\nimport { createContext, useContext } from \"react\";\n\ntype Toast = { id: number; message: string };\nconst ToastContext = createContext<{ toasts: Toast[]; push: (message: string) => void } | null>(null);\nfunction useToasts() { const value = useContext(ToastContext); if (!value) throw new Error(\"ToastProvider is required\"); return value; }\nfunction ToastViewport() { const { toasts } = useToasts(); return
;\n}\n```"}]}
{"messages":[{"role":"system","content":"You are a senior React and TypeScript engineer. Produce correct, maintainable React code with semantic HTML, keyboard access, resilient state boundaries, and visually polished UI rather than generic default components."},{"role":"user","content":"Build a TypeScript React example for story pitches in a digital magazine newsroom. Use the feature flag provider pattern, keep the API reusable, and give the UI a distinctive dark, editorial treatment."},{"role":"assistant","content":"This version applies feature flag provider to a real a digital magazine newsroom workflow, while the charcoal yellow palette keeps the hierarchy intentional rather than generic. The code keeps the interaction boundary small and exposes accessible semantics where they matter.\n\n```tsx\nimport { useState } from \"react\";\n\nimport { createContext, useContext } from \"react\";\n\nconst FlagContext = createContext | null>(null);\nfunction Feature({ name, children }: { name: string; children: React.ReactNode }) { const flags = useContext(FlagContext); if (!flags) throw new Error(\"FlagProvider is required\"); return flags[name] ? <>{children} : null; }\n\nfunction PitchContextFlags3Core() {\n return
;\n}\n```"}]}
{"messages":[{"role":"system","content":"You are a senior React and TypeScript engineer. Produce correct, maintainable React code with semantic HTML, keyboard access, resilient state boundaries, and visually polished UI rather than generic default components."},{"role":"user","content":"Debug a React implementation for weekly menus in a nutritionist meal-planning portal. The interaction works only with a mouse and state leaks between views. Replace the fragile approach with memoized dense row and explain the important fix briefly."},{"role":"assistant","content":"This version applies memoized dense row to a real a nutritionist meal-planning portal workflow, while the midnight cyan palette keeps the hierarchy intentional rather than generic. The code keeps the interaction boundary small and exposes accessible semantics where they matter.\n\n```tsx\nimport { useState } from \"react\";\n\nimport { memo } from \"react\";\n\ntype Row = { id: string; label: string; owner: string };\nconst DenseRow = memo(function DenseRow({ row, selected, onSelect }: { row: Row; selected: boolean; onSelect: (id: string) => void }) {\n return ;\n});\n\nfunction MenuMemoRows3Core() {\n const [selected, setSelected] = useState(\"2\");\n const rows: Row[] = [{ id: \"1\", label: \"Triage\", owner: \"Mira\" }, { id: \"2\", label: \"Review\", owner: \"Noah\" }, { id: \"3\", label: \"Release\", owner: \"Ari\" }];\n return
Keep behavior near the decision it serves, while letting the surrounding page stay easy to scan and test.
;\n}\n```"}]}
{"messages":[{"role":"system","content":"You are a senior React and TypeScript engineer. Produce correct, maintainable React code with semantic HTML, keyboard access, resilient state boundaries, and visually polished UI rather than generic default components."},{"role":"user","content":"Explain when to use derived summary with useMemo in a university research portal, then show a compact production-minded component for active studies in a university research portal."},{"role":"assistant","content":"This version applies derived summary with useMemo to a real a university research portal workflow, while the forest lime palette keeps the hierarchy intentional rather than generic. The code keeps the interaction boundary small and exposes accessible semantics where they matter.\n\n```tsx\nimport { useState } from \"react\";\n\nimport { useMemo } from \"react\";\n\ntype LedgerLine = { label: string; amount: number; approved: boolean };\nfunction StudyMemoSummary3Core() {\n const [showApproved, setShowApproved] = useState(true);\n const lines: LedgerLine[] = [{ label: \"Field work\", amount: 320, approved: true }, { label: \"Materials\", amount: 140, approved: false }, { label: \"Travel\", amount: 90, approved: true }];\n const summary = useMemo(() => lines.filter((line) => showApproved || !line.approved).reduce((sum, line) => sum + line.amount, 0), [lines, showApproved]);\n return
;\n}\n\n\nfunction StudyMemoSummary3PatternLens() {\n const [note, setNote] = useState(\"\");\n const [entries, setEntries] = useState([]);\n function addNote(event: React.FormEvent) { event.preventDefault(); const value = note.trim(); if (value) { setEntries((current) => [value, ...current]); setNote(\"\"); } }\n return ;\n}\n```"}]}
{"messages":[{"role":"system","content":"You are a senior React and TypeScript engineer. Produce correct, maintainable React code with semantic HTML, keyboard access, resilient state boundaries, and visually polished UI rather than generic default components."},{"role":"user","content":"Turn this UI brief into React: a focused control surface for live shipments in a freight dispatch console, with a clear hierarchy, strong focus states, and stable callback for child actions. Prefer a non-generic layout."},{"role":"assistant","content":"This version applies stable callback for child actions to a real a freight dispatch console workflow, while the ocean teal palette keeps the hierarchy intentional rather than generic. The code keeps the interaction boundary small and exposes accessible semantics where they matter.\n\n```tsx\nimport { useState } from \"react\";\n\nimport { memo, useCallback } from \"react\";\n\nconst CommandBar = memo(function CommandBar({ onCreate, count }: { onCreate: () => void; count: number }) {\n return
;\n}\n```"}]}
{"messages":[{"role":"system","content":"You are a senior React and TypeScript engineer. Produce correct, maintainable React code with semantic HTML, keyboard access, resilient state boundaries, and visually polished UI rather than generic default components."},{"role":"user","content":"I keep coupling rendering and behavior in volunteer shifts in a charity volunteer hub. Refactor this sketch using deferred filter input: function Screen() { return ; }. Show the improved implementation."},{"role":"assistant","content":"This version applies deferred filter input to a real a charity volunteer hub workflow, while the lagoon emerald palette keeps the hierarchy intentional rather than generic. The code keeps the interaction boundary small and exposes accessible semantics where they matter.\n\n```tsx\nimport { useState } from \"react\";\n\nimport { useDeferredValue } from \"react\";\n\nfunction ShiftDeferred3Core() {\n const [query, setQuery] = useState(\"\");\n const deferredQuery = useDeferredValue(query);\n const entries = [\"Aurora\", \"Beacon\", \"Cinder\", \"Delta\", \"Ember\", \"Fjord\"].filter((entry) => entry.toLowerCase().includes(deferredQuery.toLowerCase()));\n const stale = query !== deferredQuery;\n return
Volunteer shifts
Keep typing urgent; let dense filtering trail behind.
)};\n}\n```"}]}
{"messages":[{"role":"system","content":"You are a senior React and TypeScript engineer. Produce correct, maintainable React code with semantic HTML, keyboard access, resilient state boundaries, and visually polished UI rather than generic default components."},{"role":"user","content":"Build a TypeScript React example for episode pipeline in a podcast production suite. Use the transitioned non-urgent view pattern, keep the API reusable, and give the UI a distinctive dark, editorial treatment."},{"role":"assistant","content":"This version applies transitioned non-urgent view to a real a podcast production suite workflow, while the ink fuchsia palette keeps the hierarchy intentional rather than generic. The code keeps the interaction boundary small and exposes accessible semantics where they matter.\n\n```tsx\nimport { useState } from \"react\";\n\nimport { useTransition } from \"react\";\n\nfunction EpisodeTransition3Core() {\n const [view, setView] = useState(\"overview\");\n const [isPending, startTransition] = useTransition();\n const chooseView = (next: string) => startTransition(() => setView(next));\n return
Episode pipeline
Switch non-urgent views in a transition.
{isPending ? \"Updating view…\" : \"Ready\"}
{view}
The selected panel can take its time without blocking the button press.
)};\n}\n```"}]}
{"messages":[{"role":"system","content":"You are a senior React and TypeScript engineer. Produce correct, maintainable React code with semantic HTML, keyboard access, resilient state boundaries, and visually polished UI rather than generic default components."},{"role":"user","content":"Debug a React implementation for donation collections in a regional food-bank dashboard. The interaction works only with a mouse and state leaks between views. Replace the fragile approach with controlled segmented picker and explain the important fix briefly."},{"role":"assistant","content":"This version applies controlled segmented picker to a real a regional food-bank dashboard workflow, while the rose orange palette keeps the hierarchy intentional rather than generic. The code keeps the interaction boundary small and exposes accessible semantics where they matter.\n\n```tsx\nimport { useState } from \"react\";\n\ntype View = \"agenda\" | \"board\" | \"archive\";\nfunction SegmentedPicker({ value, onChange }: { value: View; onChange: (view: View) => void }) {\n return
{([\"agenda\", \"board\", \"archive\"] as View[]).map((view) => )}
;\n}\n```"}]}
{"messages":[{"role":"system","content":"You are a senior React and TypeScript engineer. Produce correct, maintainable React code with semantic HTML, keyboard access, resilient state boundaries, and visually polished UI rather than generic default components."},{"role":"user","content":"Explain when to use uncontrolled FormData form in a wedding planning workspace, then show a compact production-minded component for wedding tasks in a wedding planning workspace."},{"role":"assistant","content":"This version applies uncontrolled FormData form to a real a wedding planning workspace workflow, while the plum pink palette keeps the hierarchy intentional rather than generic. The code keeps the interaction boundary small and exposes accessible semantics where they matter.\n\n```tsx\nimport { useState } from \"react\";\n\nfunction TaskUncontrolledForm3Core() {\n const [result, setResult] = useState(\"\");\n function submit(formData: FormData) { setResult(String(formData.get(\"note\") ?? \"\").trim() || \"Add a note before submitting.\"); }\n return
Wedding tasks
Use the platform form contract when every keystroke is not state.
;\n}\n```"}]}
{"messages":[{"role":"system","content":"You are a senior React and TypeScript engineer. Produce correct, maintainable React code with semantic HTML, keyboard access, resilient state boundaries, and visually polished UI rather than generic default components."},{"role":"user","content":"Turn this UI brief into React: a focused control surface for featured listings in an artisan marketplace studio, with a clear hierarchy, strong focus states, and controllable toggle contract. Prefer a non-generic layout."},{"role":"assistant","content":"This version applies controllable toggle contract to a real an artisan marketplace studio workflow, while the obsidian amber palette keeps the hierarchy intentional rather than generic. The code keeps the interaction boundary small and exposes accessible semantics where they matter.\n\n```tsx\nimport { useState } from \"react\";\n\ntype ToggleProps = { checked?: boolean; defaultChecked?: boolean; onCheckedChange?: (checked: boolean) => void; label: string };\nfunction Toggle({ checked, defaultChecked = false, onCheckedChange, label }: ToggleProps) {\n const [internal, setInternal] = useState(defaultChecked);\n const isControlled = checked !== undefined;\n const value = isControlled ? checked : internal;\n function change(next: boolean) { if (!isControlled) setInternal(next); onCheckedChange?.(next); }\n return ;\n}\nfunction ListingControllableToggle3Core() {\n const [alerts, setAlerts] = useState(true);\n return
;\n}\n```"}]}
{"messages":[{"role":"system","content":"You are a senior React and TypeScript engineer. Produce correct, maintainable React code with semantic HTML, keyboard access, resilient state boundaries, and visually polished UI rather than generic default components."},{"role":"user","content":"I keep coupling rendering and behavior in story pitches in a digital magazine newsroom. Refactor this sketch using hybrid editable field: function Screen() { return ; }. Show the improved implementation."},{"role":"assistant","content":"This version applies hybrid editable field to a real a digital magazine newsroom workflow, while the deep indigo palette keeps the hierarchy intentional rather than generic. The code keeps the interaction boundary small and exposes accessible semantics where they matter.\n\n```tsx\nimport { useState } from \"react\";\n\ntype EditableProps = { initialValue: string; onCommit: (value: string) => void };\nfunction EditableLabel({ initialValue, onCommit }: EditableProps) {\n const [editing, setEditing] = useState(false);\n const [draft, setDraft] = useState(initialValue);\n return editing ? : ;\n}\nfunction PitchHybridField3Core() {\n const [label, setLabel] = useState(\"Review queue\");\n return
Story pitches
Transient local input meets an explicit commit boundary.
Keep behavior near the decision it serves, while letting the surrounding page stay easy to scan and test.
;\n}\n```"}]}
{"messages":[{"role":"system","content":"You are a senior React and TypeScript engineer. Produce correct, maintainable React code with semantic HTML, keyboard access, resilient state boundaries, and visually polished UI rather than generic default components."},{"role":"user","content":"Build a TypeScript React example for weekly menus in a nutritionist meal-planning portal. Use the query-state render prop pattern, keep the API reusable, and give the UI a distinctive dark, editorial treatment."},{"role":"assistant","content":"This version applies query-state render prop to a real a nutritionist meal-planning portal workflow, while the charcoal yellow palette keeps the hierarchy intentional rather than generic. The code keeps the interaction boundary small and exposes accessible semantics where they matter.\n\n```tsx\nimport { useState } from \"react\";\n\nimport { useEffect } from \"react\";\n\ntype QueryState = { data: T[]; loading: boolean; error: string | null };\nfunction Query({ load, children }: { load: () => Promise; children: (state: QueryState) => React.ReactNode }) {\n const [state, setState] = useState>({ data: [], loading: true, error: null });\n useEffect(() => { let active = true; load().then((data) => active && setState({ data, loading: false, error: null })).catch(() => active && setState({ data: [], loading: false, error: \"Could not load records.\" })); return () => { active = false; }; }, [load]);\n return <>{children(state)};\n}\nconst loadRecords = async () => { await new Promise((resolve) => window.setTimeout(resolve, 250)); return [\"North wing\", \"Harbor desk\", \"Field team\"]; };\nfunction MenuRenderQuery3Core() {\n return
Weekly menus
The caller owns the loading, empty, and success markup.
;\n}\n\n\nfunction MenuRenderQuery3PatternLens() {\n const [note, setNote] = useState(\"\");\n const [entries, setEntries] = useState([]);\n function addNote(event: React.FormEvent) { event.preventDefault(); const value = note.trim(); if (value) { setEntries((current) => [value, ...current]); setNote(\"\"); } }\n return ;\n}\n```"}]}
{"messages":[{"role":"system","content":"You are a senior React and TypeScript engineer. Produce correct, maintainable React code with semantic HTML, keyboard access, resilient state boundaries, and visually polished UI rather than generic default components."},{"role":"user","content":"Debug a React implementation for active studies in a university research portal. The interaction works only with a mouse and state leaks between views. Replace the fragile approach with pointer-position render prop and explain the important fix briefly."},{"role":"assistant","content":"This version applies pointer-position render prop to a real a university research portal workflow, while the midnight cyan palette keeps the hierarchy intentional rather than generic. The code keeps the interaction boundary small and exposes accessible semantics where they matter.\n\n```tsx\nimport { useState } from \"react\";\n\ntype PointerRender = (position: { x: number; y: number; active: boolean }) => React.ReactNode;\nfunction PointerCanvas({ children }: { children: PointerRender }) {\n const [position, setPosition] = useState({ x: 50, y: 50, active: false });\n return
;\n}\n```"}]}
{"messages":[{"role":"system","content":"You are a senior React and TypeScript engineer. Produce correct, maintainable React code with semantic HTML, keyboard access, resilient state boundaries, and visually polished UI rather than generic default components."},{"role":"user","content":"Explain when to use accessible compound tabs in a language-learning coach app, then show a compact production-minded component for practice lessons in a language-learning coach app."},{"role":"assistant","content":"This version applies accessible compound tabs to a real a language-learning coach app workflow, while the forest lime palette keeps the hierarchy intentional rather than generic. The code keeps the interaction boundary small and exposes accessible semantics where they matter.\n\n```tsx\nimport { useState } from \"react\";\n\nimport { createContext, useContext } from \"react\";\n\nconst TabsContext = createContext<{ value: string; setValue: (value: string) => void } | null>(null);\nfunction useTabs() { const value = useContext(TabsContext); if (!value) throw new Error(\"Tabs components need Tabs.Root\"); return value; }\nfunction TabsRoot({ children }: { children: React.ReactNode }) { const [value, setValue] = useState(\"brief\"); return {children}; }\nfunction TabsList({ children }: { children: React.ReactNode }) { return
)};\n}\n```"}]}
{"messages":[{"role":"system","content":"You are a senior React and TypeScript engineer. Produce correct, maintainable React code with semantic HTML, keyboard access, resilient state boundaries, and visually polished UI rather than generic default components."},{"role":"user","content":"Turn this UI brief into React: a focused control surface for playtest reports in a game studio playtest tracker, with a clear hierarchy, strong focus states, and compound accordion state. Prefer a non-generic layout."},{"role":"assistant","content":"This version applies compound accordion state to a real a game studio playtest tracker workflow, while the ocean teal palette keeps the hierarchy intentional rather than generic. The code keeps the interaction boundary small and exposes accessible semantics where they matter.\n\n```tsx\nimport { useState } from \"react\";\n\nimport { createContext, useContext } from \"react\";\n\nconst AccordionContext = createContext<{ open: string | null; toggle: (id: string) => void } | null>(null);\nfunction AccordionRoot({ children }: { children: React.ReactNode }) { const [open, setOpen] = useState(\"first\"); return setOpen((current) => current === id ? null : id) }}>{children}; }\nfunction AccordionItem({ id, title, children }: { id: string; title: string; children: React.ReactNode }) { const state = useContext(AccordionContext); if (!state) throw new Error(\"AccordionItem requires AccordionRoot\"); const open = state.open === id; return {open &&
)};\n}\n```"}]}
{"messages":[{"role":"system","content":"You are a senior React and TypeScript engineer. Produce correct, maintainable React code with semantic HTML, keyboard access, resilient state boundaries, and visually polished UI rather than generic default components."},{"role":"user","content":"I keep coupling rendering and behavior in episode pipeline in a podcast production suite. Refactor this sketch using section error boundary: function Screen() { return ; }. Show the improved implementation."},{"role":"assistant","content":"This version applies section error boundary to a real a podcast production suite workflow, while the lagoon emerald palette keeps the hierarchy intentional rather than generic. The code keeps the interaction boundary small and exposes accessible semantics where they matter.\n\n```tsx\nimport { useState } from \"react\";\n\nimport { Component, type ErrorInfo, type ReactNode } from \"react\";\n\ntype BoundaryState = { hasError: boolean };\nclass SectionBoundary extends Component<{ children: ReactNode }, BoundaryState> {\n state: BoundaryState = { hasError: false };\n static getDerivedStateFromError() { return { hasError: true }; }\n componentDidCatch(error: Error, info: ErrorInfo) { console.error(\"Section failed\", error, info.componentStack); }\n render() { return this.state.hasError ?
This panel could not load. The rest of the workspace is still available.
;\n}\n```"}]}
{"messages":[{"role":"system","content":"You are a senior React and TypeScript engineer. Produce correct, maintainable React code with semantic HTML, keyboard access, resilient state boundaries, and visually polished UI rather than generic default components."},{"role":"user","content":"Build a TypeScript React example for donation collections in a regional food-bank dashboard. Use the retryable error boundary with reset key pattern, keep the API reusable, and give the UI a distinctive dark, editorial treatment."},{"role":"assistant","content":"This version applies retryable error boundary with reset key to a real a regional food-bank dashboard workflow, while the ink fuchsia palette keeps the hierarchy intentional rather than generic. The code keeps the interaction boundary small and exposes accessible semantics where they matter.\n\n```tsx\nimport { useState } from \"react\";\n\nimport { Component, type ReactNode } from \"react\";\n\nclass RetryBoundary extends Component<{ resetKey: string; children: ReactNode }, { error: boolean }> {\n state = { error: false };\n static getDerivedStateFromError() { return { error: true }; }\n componentDidUpdate(previous: { resetKey: string }) { if (previous.resetKey !== this.props.resetKey && this.state.error) this.setState({ error: false }); }\n render() { return this.state.error ?
Change the filter to retry this isolated region.
: this.props.children; }\n}\nfunction Report({ filter }: { filter: string }) { if (filter === \"broken\") throw new Error(\"Filter error\"); return
;\n}\n```"}]}
{"messages":[{"role":"system","content":"You are a senior React and TypeScript engineer. Produce correct, maintainable React code with semantic HTML, keyboard access, resilient state boundaries, and visually polished UI rather than generic default components."},{"role":"user","content":"Debug a React implementation for wedding tasks in a wedding planning workspace. The interaction works only with a mouse and state leaks between views. Replace the fragile approach with lazy-loaded analytics island and explain the important fix briefly."},{"role":"assistant","content":"This version applies lazy-loaded analytics island to a real a wedding planning workspace workflow, while the rose orange palette keeps the hierarchy intentional rather than generic. The code keeps the interaction boundary small and exposes accessible semantics where they matter.\n\n```tsx\nimport { useState } from \"react\";\n\nimport { lazy, Suspense } from \"react\";\n\nconst AnalyticsPanel = lazy(async () => {\n await new Promise((resolve) => window.setTimeout(resolve, 250));\n return { default: function AnalyticsPanel() { return
;\n}\n```"}]}
{"messages":[{"role":"system","content":"You are a senior React and TypeScript engineer. Produce correct, maintainable React code with semantic HTML, keyboard access, resilient state boundaries, and visually polished UI rather than generic default components."},{"role":"user","content":"Explain when to use resource boundary with fallback in an artisan marketplace studio, then show a compact production-minded component for featured listings in an artisan marketplace studio."},{"role":"assistant","content":"This version applies resource boundary with fallback to a real an artisan marketplace studio workflow, while the plum pink palette keeps the hierarchy intentional rather than generic. The code keeps the interaction boundary small and exposes accessible semantics where they matter.\n\n```tsx\nimport { useState } from \"react\";\n\nimport { Suspense } from \"react\";\n\ntype Resource = { read: () => T };\nfunction createResource(promise: Promise): Resource {\n let status = \"pending\"; let result: T;\n const suspender = promise.then((value) => { status = \"success\"; result = value; });\n return { read() { if (status === \"pending\") throw suspender; return result; } };\n}\nconst resource = createResource(new Promise((resolve) => window.setTimeout(() => resolve([\"Signal\", \"Owner\", \"Decision\"]), 300)));\nfunction ResourceList() { const labels = resource.read(); return
Keep behavior near the decision it serves, while letting the surrounding page stay easy to scan and test.
;\n}\n```"}]}
{"messages":[{"role":"system","content":"You are a senior React and TypeScript engineer. Produce correct, maintainable React code with semantic HTML, keyboard access, resilient state boundaries, and visually polished UI rather than generic default components."},{"role":"user","content":"Turn this UI brief into React: a focused control surface for story pitches in a digital magazine newsroom, with a clear hierarchy, strong focus states, and react-hook-form validation. Prefer a non-generic layout."},{"role":"assistant","content":"This version applies react-hook-form validation to a real a digital magazine newsroom workflow, while the obsidian amber palette keeps the hierarchy intentional rather than generic. The code keeps the interaction boundary small and exposes accessible semantics where they matter.\n\n```tsx\nimport { useState } from \"react\";\n\nimport { useForm } from \"react-hook-form\";\n\ntype FormValues = { title: string; owner: string; priority: \"low\" | \"high\" };\nfunction PitchRhf3Core() {\n const { register, handleSubmit, formState: { errors, isSubmitting } } = useForm({ defaultValues: { title: \"\", owner: \"\", priority: \"low\" } });\n const [saved, setSaved] = useState(false);\n const submit = async (values: FormValues) => { await new Promise((resolve) => window.setTimeout(resolve, 250)); setSaved(Boolean(values.title)); };\n return
Story pitches
A library can own validation while the form remains semantic.