---
title: "Table Column Aggregation - Air Market"
description: "You want sums or averages on a table's columns, but you don't want to group the rows to get them. This handles aggregating TanStack Table columns on their own - grand totals, totals for rows you chos…"
canonical: "https://airmarket.ai/app/aggregation"
---

[Air Market](/) / [Developer Tools](/category/devtools) / Table Column Aggregation

Skill by [TanStack](/@tanstack)

# Table Column Aggregation

Column totals in your table without forcing rows into groups

## What this does

You want sums or averages on a table's columns, but you don't want to group the rows to get them. This handles aggregating TanStack Table columns on their own - grand totals, totals for rows you chose, several aggregations at once, and rules you define yourself. Reach for it when the totals and the grouping shouldn't have to be the same decision.

### Top 3 things it does for you

- Add a grand total row to a table
- Total only the rows I picked
- Show more than one aggregate per column

## Information

**Table Column Aggregation at a glance**

|  |  |
| --- | --- |
| Kind | Skill |
| Publisher | [TanStack](/@tanstack) |
| Category | [Developer Tools](/category/devtools) |
| Works with | Agent Skills - an open standard supported by 40+ agents |
| Size | 5 KB |
| Licence | MIT |
| Repository | [TanStack/table](https://github.com/TanStack/table/tree/d9cca007c015b0253a17c30b75b602445782ed12/packages/table-core/skills/aggregation) |
| GitHub stars | 28,375 (as of Nov 2026) |

## Security report

**Verified.** AIR scanned this exact version of Table Column Aggregation and flagged nothing. AIR's verdict: **safe**.

**What Table Column Aggregation's check was run against**

|  |  |
| --- | --- |
| Commit | d9cca007c015b0253a17c30b75b602445782ed12 |
| Content hash | ec4397e630ea7f4506f8953f30619db7e4c86fcb41d040bb0118bcd9a099b4db |
| Files read | [Browse the files at this exact commit](https://github.com/TanStack/table/blob/d9cca007c015b0253a17c30b75b602445782ed12/packages/table-core/skills/aggregation/SKILL.md) |

A scan is named by the exact content it read, not by a version number. A different version is a different artifact, and nothing here applies to a version AIR has not scanned.

[Read the full security report for Table Column Aggregation](/security/aggregation)

## About Table Column Aggregation

This covers aggregating TanStack Table columns independently of grouping.

It spans grand totals, totals across rows the caller selects, multiple keyed aggregations, custom context-based definitions, grouped merges, manually supplied values, and worker constraints.

## What's inside

- SKILL.md - instructions

## Questions

### Is Table Column Aggregation safe to install?

AIR scanned this exact version of Table Column Aggregation and flagged nothing. AIR's verdict: safe. The verdict is named by the content that was read, at commit d9cca007c015, so it cannot drift onto a version nobody scanned. The full report is at https://airmarket.ai/security/aggregation.

### How do I install Table Column Aggregation?

Open https://airmarket.ai/app/aggregation on Air Market and use the install action: Air Market hands Claude a prompt naming this exact skill, and Claude sets it up. Source, pinned to the exact commit this listing describes: https://github.com/TanStack/table/tree/d9cca007c015b0253a17c30b75b602445782ed12/packages/table-core/skills/aggregation. Install from that link, not the branch.

## Related on Air Market

- [More Developer Tools listings](/category/devtools)
- [Everything by TanStack](/@tanstack)

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Canonical URL: <https://airmarket.ai/app/aggregation>