---
title: "Start Server Core (@tanstack/start-server-core) - Air Market"
description: "Your server code needs the actual request in front of it: a header, a cookie, a session, the response on the way back out. This covers those server-side utilities in TanStack Start and how a request…"
canonical: "https://airmarket.ai/app/start-server-core"
---

[Air Market](/) / [Developer Tools](/category/devtools) / Start Server Core (@tanstack/start-server-core)

Skill by [TanStack](/@tanstack)

# Start Server Core (@tanstack/start-server-core)

Work with the request and response on the server side

## What this does

Your server code needs the actual request in front of it: a header, a cookie, a session, the response on the way back out. This covers those server-side utilities in TanStack Start and how a request moves through handling. Reach for it when you are writing code that runs on the server and needs request or response access.

### Top 3 things it does for you

- Set up the server request handler
- Read a request and set response headers
- Read and set cookies

## Information

**Start Server Core (@tanstack/start-server-core) 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 | 11 KB |
| Licence | MIT |
| Repository | [TanStack/router](https://github.com/TanStack/router/tree/179d9b9b5eec50dc7833b4e2ef91b735d34bbc07/packages/start-server-core/skills/start-server-core) |
| GitHub stars | 14,984 (as of Nov 2026) |

## Security report

**Verified.** AIR scanned this exact version of Start Server Core (@tanstack/start-server-core) and flagged nothing. AIR's verdict: **safe**.

**What Start Server Core (@tanstack/start-server-core)'s check was run against**

|  |  |
| --- | --- |
| Commit | 179d9b9b5eec50dc7833b4e2ef91b735d34bbc07 |
| Content hash | 50c652d1a6a40617f4146af8f48b382625782496a1e1eb73931cb42ebf8f399a |
| Files read | [Browse the files at this exact commit](https://github.com/TanStack/router/blob/179d9b9b5eec50dc7833b4e2ef91b735d34bbc07/packages/start-server-core/skills/start-server-core/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 Start Server Core (@tanstack/start-server-core)](/security/start-server-core)

## About Start Server Core (@tanstack/start-server-core)

This covers the server-side runtime for TanStack Start: createStartHandler and the request and response utilities - getRequest, setResponseHeader, setCookie, getCookie, and useSession.

It also covers the three-phase request handling and the AsyncLocalStorage context behind it.

## What's inside

- SKILL.md - instructions

## Questions

### Is Start Server Core (@tanstack/start-server-core) safe to install?

AIR scanned this exact version of Start Server Core (@tanstack/start-server-core) and flagged nothing. AIR's verdict: safe. The verdict is named by the content that was read, at commit 179d9b9b5eec, so it cannot drift onto a version nobody scanned. The full report is at https://airmarket.ai/security/start-server-core.

### How do I install Start Server Core (@tanstack/start-server-core)?

Open https://airmarket.ai/app/start-server-core 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/router/tree/179d9b9b5eec50dc7833b4e2ef91b735d34bbc07/packages/start-server-core/skills/start-server-core. 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/start-server-core>