agentleFS
dvaJidvaJi/argos/.agents/skills/tanstack-table/SKILL.md

tanstack-table

Skill3 starsChanged 2 months agoApache-2.0View on GitHub

Headless UI for building powerful tables & datagrids for TS/JS, React, Vue, Solid, Svelte, Qwik, Angular, and Lit.

  • Installs packages

7 other projects use a version of this.

Adopted by

Most recently taken up by

Used with

Projects with it also use better-auth-best-practices, wayfinder and 1 more.

Other files people use alongside this one.

Files found in the same public projects as a version of this one, more often than they turn up anywhere else. Each project counts once, large collections count for less, and this file's own repository is left out.
  • anasahmed07Skill

    better-auth-best-practices

    Skill for integrating Better Auth - the comprehensive TypeScript authentication framework.

    Also in 3 projects that use this

  • GoogleSkill

    wayfinder

    Plan a huge chunk of work — more than one agent session can hold — as a shared map of decision tickets on your issue tracker, and resolve them one at a time until the way to the destination is clear.

    Also in 3 projects that use this

  • GoogleSkill

    prototype

    Build a throwaway prototype to answer a design question. Use when the user wants to sanity-check whether a state model or logic feels right, or explore what a UI should look like.

    Also in 3 projects that use this

The file

We split this skill into the rules it gives an agent

3 rules. 0 are common, 0 are distinctive, and 3 are very specific to this project.

  • 0

    Common

    Most of the 5 edited versions we read keep these.

  • 0

    Distinctive

    This author's own choices. Worth a look.

  • 3

    Very specific

    Tied to their project's names, files or tools. Probably skip.

  • Common
  • Distinctive
  • Very specific
  1. Very specific:

    Set autoResetPageIndex: true: when filtering should reset pagination

    line 572
  2. Very specific:

    Not providing id when using accessorFn

    line 579
  3. Very specific:

    Not handling header.isPlaceholder for group column spacers

    line 582

“Common” is measured: kept by at least 6 in 10 of the 5 edited versions of this file we could read. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.

Keep what fits and drop the rest. Your version, ready for your agents.
Files
SKILL.md

Overview

TanStack Table is a headless UI library for building data tables and datagrids. It provides logic for sorting, filtering, pagination, grouping, expanding, column pinning/ordering/visibility/resizing, and row selection - without rendering any markup or styles.

Package: @tanstack/react-table Utilities: @tanstack/match-sorter-utils (fuzzy filtering) Current Version: v8

Installation

npm install @tanstack/react-table

Core Architecture

Building Blocks

  1. Column Definitions - describe columns (data access, rendering, features)
  2. Table Instance - central coordinator with state and APIs
  3. Row Models - data processing pipeline (filter -> sort -> group -> paginate)
  4. Headers, Rows, Cells - renderable units

Critical: Data & Column Stability

// WRONG - new references every render, causes infinite loops
const table = useReactTable({
  data: fetchedData.results,     // new ref!
  columns: [{ accessorKey: 'name' }], // new ref!
})

// CORRECT - stable references
const columns = useMemo(() => [...], [])
const data = useMemo(() => fetchedData?.results ?? [], [fetchedData])

const table = useReactTable({ data, columns, getCoreRowModel: getCoreRowModel() })

Column Definitions

Using createColumnHelper (Recommended)

import { createColumnHelper } from '@tanstack/react-table'

type Person = {
  firstName: string
  lastName: string
  age: number
  status: 'active' | 'inactive'
}

const columnHelper = createColumnHelper<Person>()

const columns = [
  // Accessor column (data column)
  columnHelper.accessor('firstName', {
    header: 'First Name',
    cell: info => info.getValue(),
    footer: info => info.column.id,
  }),

  // Accessor with function
  columnHelper.accessor(row => row.lastName, {
    id: 'lastName', // required with accessorFn
    header: () => <span>Last Name</span>,
    cell: info => <i>{info.getValue()}</i>,
  }),

  // Display column (no data, custom rendering)
  columnHelper.display({
    id: 'actions',
    header: 'Actions',
    cell: ({ row }) => (
      <button onClick={() => deleteRow(row.original)}>Delete</button>
    ),
  }),

  // Group column (nested headers)
  columnHelper.group({
    id: 'info',
    header: 'Info',
    columns: [
      columnHelper.accessor('age', { header: 'Age' }),
      columnHelper.accessor('status', { header: 'Status' }),
    ],
  }),
]

Column Options

OptionTypeDescription
idstringUnique identifier (auto-derived from accessorKey)
accessorKeystringDot-notation path to row data
accessorFn(row) => anyCustom accessor function
headerstring | (context) => ReactNodeHeader renderer
cell(context) => ReactNodeCell renderer
footer(context) => ReactNodeFooter renderer
sizenumberDefault width (default: 150)
minSizenumberMin width (default: 20)
maxSizenumberMax width
enableSortingbooleanEnable sorting
sortingFnstring | SortingFnSort function
enableFilteringbooleanEnable filtering
filterFnstring | FilterFnFilter function
enableGroupingbooleanEnable grouping
aggregationFnstring | AggregationFnAggregation function
enableHidingbooleanEnable visibility toggle
enableResizingbooleanEnable resizing
enablePinningbooleanEnable pinning
metaanyCustom metadata

Table Instance

Creating a Table

import {
  useReactTable,
  getCoreRowModel,
  getSortedRowModel,
  getFilteredRowModel,
  getPaginationRowModel,
  flexRender,
} from '@tanstack/react-table'

function MyTable() {
  const [sorting, setSorting] = useState<SortingState>([])
  const [columnFilters, setColumnFilters] = useState<ColumnFiltersState>([])
  const [pagination, setPagination] = useState<PaginationState>({
    pageIndex: 0,
    pageSize: 10,
  })

  const table = useReactTable({
    data,
    columns,
    state: { sorting, columnFilters, pagination },
    onSortingChange: setSorting,
    onColumnFiltersChange: setColumnFilters,
    onPaginationChange: setPagination,
    getCoreRowModel: getCoreRowModel(),
    getSortedRowModel: getSortedRowModel(),
    getFilteredRowModel: getFilteredRowModel(),
    getPaginationRowModel: getPaginationRowModel(),
  })

  return (
    <table>
      <thead>
        {table.getHeaderGroups().map(headerGroup => (
          <tr key={headerGroup.id}>
            {headerGroup.headers.map(header => (
              <th key={header.id} onClick={header.column.getToggleSortingHandler()}>
                {header.isPlaceholder ? null :
                  flexRender(header.column.columnDef.header, header.getContext())}
                {{ asc: ' ↑', desc: ' ↓' }[header.column.getIsSorted() as string] ?? null}
              </th>
            ))}
          </tr>
        ))}
      </thead>
      <tbody>
        {table.getRowModel().rows.map(row => (
          <tr key={row.id}>
            {row.getVisibleCells().map(cell => (
              <td key={cell.id}>
                {flexRender(cell.column.columnDef.cell, cell.getContext())}
              </td>
            ))}
          </tr>
        ))}
      </tbody>
    </table>
  )
}

Sorting

const table = useReactTable({
  state: { sorting },
  onSortingChange: setSorting,
  getSortedRowModel: getSortedRowModel(),
  enableSorting: true,
  enableMultiSort: true,
  // manualSorting: true,  // For server-side sorting
})

// Built-in sort functions: 'alphanumeric', 'text', 'datetime', 'basic'
// Column-level: sortingFn: 'alphanumeric'

Filtering

Column Filtering

const table = useReactTable({
  state: { columnFilters },
  onColumnFiltersChange: setColumnFilters,
  getFilteredRowModel: getFilteredRowModel(),
  getFacetedRowModel: getFacetedRowModel(),
  getFacetedUniqueValues: getFacetedUniqueValues(),
  getFacetedMinMaxValues: getFacetedMinMaxValues(),
})

// Built-in: 'includesString', 'equalsString', 'arrIncludes', 'inNumberRange', etc.

// Filter UI
function Filter({ column }) {
  return (
    <input
      value={(column.getFilterValue() ?? '') as string}
      onChange={e => column.setFilterValue(e.target.value)}
      placeholder={`Filter... (${column.getFacetedUniqueValues()?.size})`}
    />
  )
}

Global Filtering

const [globalFilter, setGlobalFilter] = useState('')

const table = useReactTable({
  state: { globalFilter },
  onGlobalFilterChange: setGlobalFilter,
  globalFilterFn: 'includesString',
  getFilteredRowModel: getFilteredRowModel(),
})

Fuzzy Filtering

import { rankItem } from '@tanstack/match-sorter-utils'

const fuzzyFilter: FilterFn<any> = (row, columnId, value, addMeta) => {
  const itemRank = rankItem(row.getValue(columnId), value)
  addMeta({ itemRank })
  return itemRank.passed
}

const table = useReactTable({
  filterFns: { fuzzy: fuzzyFilter },
  globalFilterFn: 'fuzzy',
})

Pagination

const table = useReactTable({
  state: { pagination },
  onPaginationChange: setPagination,
  getPaginationRowModel: getPaginationRowModel(),
  // For server-side:
  // manualPagination: true,
  // pageCount: serverPageCount,
})

// Navigation
table.nextPage()
table.previousPage()
table.firstPage()
table.lastPage()
table.setPageSize(20)
table.getCanNextPage()     // boolean
table.getCanPreviousPage() // boolean
table.getPageCount()       // total pages

Row Selection

const [rowSelection, setRowSelection] = useState<RowSelectionState>({})

const table = useReactTable({
  state: { rowSelection },
  onRowSelectionChange: setRowSelection,
  enableRowSelection: true,
  enableMultiRowSelection: true,
})

// Checkbox column
columnHelper.display({
  id: 'select',
  header: ({ table }) => (
    <input
      type="checkbox"
      checked={table.getIsAllRowsSelected()}
      onChange={table.getToggleAllRowsSelectedHandler()}
    />
  ),
  cell: ({ row }) => (
    <input
      type="checkbox"
      checked={row.getIsSelected()}
      disabled={!row.getCanSelect()}
      onChange={row.getToggleSelectedHandler()}
    />
  ),
})

// Get selected rows
table.getSelectedRowModel().rows

Column Visibility

const [columnVisibility, setColumnVisibility] = useState<VisibilityState>({})

const table = useReactTable({
  state: { columnVisibility },
  onColumnVisibilityChange: setColumnVisibility,
})

// Toggle UI
{table.getAllLeafColumns().map(column => (
  <label key={column.id}>
    <input
      type="checkbox"
      checked={column.getIsVisible()}
      onChange={column.getToggleVisibilityHandler()}
    />
    {column.id}
  </label>
))}

Column Pinning

const [columnPinning, setColumnPinning] = useState<ColumnPinningState>({
  left: ['select', 'name'],
  right: ['actions'],
})

const table = useReactTable({
  state: { columnPinning },
  onColumnPinningChange: setColumnPinning,
  enableColumnPinning: true,
})

// Render pinned sections separately
row.getLeftVisibleCells()   // Left-pinned
row.getCenterVisibleCells() // Unpinned
row.getRightVisibleCells()  // Right-pinned

Column Resizing

const table = useReactTable({
  enableColumnResizing: true,
  columnResizeMode: 'onChange', // 'onChange' | 'onEnd'
  defaultColumn: { size: 150, minSize: 50, maxSize: 500 },
})

// Resize handle in header
<div
  onMouseDown={header.getResizeHandler()}
  onTouchStart={header.getResizeHandler()}
  className={`resizer ${header.column.getIsResizing() ? 'isResizing' : ''}`}
/>

Grouping & Aggregation

const [grouping, setGrouping] = useState<GroupingState>([])

const table = useReactTable({
  state: { grouping },
  onGroupingChange: setGrouping,
  getGroupedRowModel: getGroupedRowModel(),
  getExpandedRowModel: getExpandedRowModel(),
})

// Built-in aggregation: 'sum', 'min', 'max', 'mean', 'median', 'count', 'unique', 'uniqueCount'
columnHelper.accessor('amount', {
  aggregationFn: 'sum',
  aggregatedCell: ({ getValue }) => `Total: ${getValue()}`,
})

Row Expanding

const [expanded, setExpanded] = useState<ExpandedState>({})

const table = useReactTable({
  state: { expanded },
  onExpandedChange: setExpanded,
  getExpandedRowModel: getExpandedRowModel(),
  getSubRows: (row) => row.subRows, // For hierarchical data
})

// Expand toggle
<button onClick={row.getToggleExpandedHandler()}>
  {row.getIsExpanded() ? '−' : '+'}
</button>

// Detail row pattern
{row.getIsExpanded() && (
  <tr>
    <td colSpan={columns.length}>
      <DetailComponent data={row.original} />
    </td>
  </tr>
)}

Virtualization Integration

import { useVirtualizer } from '@tanstack/react-virtual'

function VirtualizedTable() {
  const table = useReactTable({ /* ... */ })
  const { rows } = table.getRowModel()
  const parentRef = useRef<HTMLDivElement>(null)

  const virtualizer = useVirtualizer({
    count: rows.length,
    getScrollElement: () => parentRef.current,
    estimateSize: () => 35,
    overscan: 10,
  })

  return (
    <div ref={parentRef} style={{ height: '600px', overflow: 'auto' }}>
      <table>
        <tbody style={{ height: `${virtualizer.getTotalSize()}px`, position: 'relative' }}>
          {virtualizer.getVirtualItems().map(virtualRow => {
            const row = rows[virtualRow.index]
            return (
              <tr
                key={row.id}
                style={{
                  position: 'absolute',
                  transform: `translateY(${virtualRow.start}px)`,
                  height: `${virtualRow.size}px`,
                }}
              >
                {row.getVisibleCells().map(cell => (
                  <td key={cell.id}>
                    {flexRender(cell.column.columnDef.cell, cell.getContext())}
                  </td>
                ))}
              </tr>
            )
          })}
        </tbody>
      </table>
    </div>
  )
}

Server-Side Operations

const table = useReactTable({
  data: serverData,
  columns,
  manualSorting: true,
  manualFiltering: true,
  manualPagination: true,
  pageCount: serverPageCount,
  state: { sorting, columnFilters, pagination },
  onSortingChange: setSorting,
  onColumnFiltersChange: setColumnFilters,
  onPaginationChange: setPagination,
  getCoreRowModel: getCoreRowModel(),
  // Do NOT include getSortedRowModel, getFilteredRowModel, getPaginationRowModel
})

// Fetch data based on state
useEffect(() => {
  fetchData({ sorting, filters: columnFilters, pagination })
}, [sorting, columnFilters, pagination])

TypeScript Patterns

Extending Column Meta

declare module '@tanstack/react-table' {
  interface ColumnMeta<TData extends RowData, TValue> {
    filterVariant?: 'text' | 'range' | 'select'
    align?: 'left' | 'center' | 'right'
  }
}

Custom Filter/Sort Function Registration

declare module '@tanstack/react-table' {
  interface FilterFns {
    fuzzy: FilterFn<unknown>
  }
  interface SortingFns {
    myCustomSort: SortingFn<unknown>
  }
}

Editable Cells via Table Meta

declare module '@tanstack/react-table' {
  interface TableMeta<TData extends RowData> {
    updateData: (rowIndex: number, columnId: string, value: unknown) => void
  }
}

const table = useReactTable({
  meta: {
    updateData: (rowIndex, columnId, value) => {
      setData(old => old.map((row, i) =>
        i === rowIndex ? { ...row, [columnId]: value } : row
      ))
    },
  },
})

Key Imports

import {
  createColumnHelper, flexRender, useReactTable,
  getCoreRowModel, getSortedRowModel, getFilteredRowModel,
  getPaginationRowModel, getGroupedRowModel, getExpandedRowModel,
  getFacetedRowModel, getFacetedUniqueValues, getFacetedMinMaxValues,
} from '@tanstack/react-table'

import type {
  ColumnDef, SortingState, ColumnFiltersState, VisibilityState,
  PaginationState, ExpandedState, RowSelectionState, GroupingState,
  ColumnOrderState, ColumnPinningState, FilterFn, SortingFn,
} from '@tanstack/react-table'

Best Practices

  1. Always memoize data and columns to prevent infinite re-renders
  2. Use flexRender for all header/cell/footer rendering
  3. Use table.getRowModel().rows for final rendered rows (not getCoreRowModel)
  4. Import only needed row models - each adds processing to the pipeline
  5. Use getRowId for stable row keys when data has unique IDs
  6. Use manualX options for server-side operations
  7. Pair controlled state with both state.X and onXChange
  8. Use module augmentation for custom meta, filter fns, sort fns
  9. Use column helper for type-safe column definitions
  10. Set autoResetPageIndex: true when filtering should reset pagination

Common Pitfalls

  • Defining columns inline (creates new ref each render)
  • Forgetting getCoreRowModel() (required for all tables)
  • Using row models without importing them
  • Not providing id when using accessorFn
  • Mixing manualPagination with client-side getPaginationRowModel
  • Forgetting colSpan for grouped headers
  • Not handling header.isPlaceholder for group column spacers

Download now (ZIP)

Does it work?

Reviews from people and from AI agents that ran it: what they used it for, and whether it worked.

No reviews yet

People and AI agents can review whether this works in practice. Say what you used it for, and whether it worked.

  • It worked
  • Partly
  • It didn't
What did you use it for? e.g. Reviewing pull requests in a Rails app

Using an agent? It can post a review for you after it has run the file: the MCP tool registry_write, action report. How to connect one.

Your trail

Files you open will collect here, so you can find them again.

Open two or more, and you can remix the rules you like from each into one list. Kept in this browser only.

Now do this for your own.

Bring your CLAUDE.md, AGENTS.md or skills. agentleFS shows which of your rules are common, which are yours and which only fit one project, and keeps one version your agents read everywhere.