# witcheer's Wingtips #88: /context, see what fills your model's context window, by category, with the free space left

Written by [witcheer](https://x.com/witcheer) at Nous Research. Republished with credit.

Canonical: https://hermeswatcher.com/wingtips/88  
Published: 2026-10-01  
[Original](https://notwitcheer.github.io/hermes-recipes/wingtips/88-context/) · [On X](https://x.com/witcheer/status/2105552884670550343) · [Full collection](https://notwitcheer.github.io/hermes-recipes/) · [Official docs](https://hermes-agent.nousresearch.com/docs/reference/slash-commands)

[Source Markdown](https://raw.githubusercontent.com/notwitcheer/hermes-recipes/8653fb699a137a32e81936fa33cabacd3f4f2095/docs/wingtips/88-context.md): use this file as the base for relative links in the verbatim text below.

Sources: [Hermes docs: Slash Commands](https://hermes-agent.nousresearch.com/docs/reference/slash-commands)


your Hermes Agent's context window holds more than your messages: the system prompt, the tool definitions, your memory, any project rules and the conversation so far.

how much room does each one take?

type this in the chat:

`/context`

you get a breakdown of the window by what fills it, with the free space that is left.

useful before a long session, or when you want to see how close a chat is to compressing!

docs: [https://hermes-agent.nousresearch.com/docs/reference/slash-commands](https://hermes-agent.nousresearch.com/docs/reference/slash-commands)