# Limits and quotas

Request, session, file, and rate limits, with the status you see when you hit one.

Every limit an application can hit, in one table. The numbers are being confirmed for publication.

This page is planned and not yet written, because the capability it describes is not yet
generally available. The structure is here so you can see where it fits; the notice comes off
when it ships.

## What this page will cover

- Idempotency key and payload sizes.
- Session lifetime and idle limits.
- File size and count limits.
- Rate limits and the 429 contract.

## Meanwhile

- The [Platform API overview](/api#errors-and-retries) already describes the retry contract for each status.