WEBVTT

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With that, we have the base usage left
and obviously you can open it, you

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can type a prompt, I know.
But there's a bit more to that.

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For one, it's worth noting that there
are many slash commands

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by simply typing slash
and then some command.

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And these change over time. New ones
are added, some are deprecated.

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One important one, for example,
is the clear command, which I just ran,

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run again.
The clear command simply clears the

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and, important,
the context window related to the session

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can start a new clean session. Of course,
that session and the

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AI running in there won't know anything
about the previous one, but you typically

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want that when you clear a session.

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You want to free up the context memory
and start fresh.

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This can, for example, also be helpful
if the AI agent got stuck and

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can't figure out or fix a problem or
if you're simply working on a different

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problem. Obviously,
you can also just start a new session by

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a new terminal window
and starting Claude in there too.

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You can have multiple Claude code sessions
run in parallel.

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You can work on the same project with
multiple Claude code sessions.

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You just wanna steer it such
that the agents don't work against each

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other in the same file, for example.
But hey, that's why you're a developer.

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You can control what you're doing with
those AI assistants.

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Now,
there are many other useful tools in there

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For example, context tells you how the

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context window for this session
is currently being used or

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occupied. And since I just cleared it,
it's almost

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empty. Well, kind of.
Interestingly enough,

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20,000 of the 200,000 tokens that
are available for

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Claude Code Opus,
the model I'm using here

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already occupied by default.
And you see that a part

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of that is the system prompt that
was set up by the Claude Code engineers

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and Anthropic. A decent chunk
is occupied by system

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tools, so tool descriptions that
are exposed to Claude

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Code to give it some hints on
when to use which tool, and

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we'll get back to that. Some small part is

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occupied by MCP tools because I already
added some MCP servers, but

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I'll also get back to that. And, well,
you see the distribution, but you

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also see there's a lot of free space.

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Also interesting is this auto compact
buffer, and we'll get back to

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compaction. But in the end,
it's there to ensure that

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limits of the context window for your
session, Claude

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Code will automatically compact it by
generating a summary

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of the work that was done
and the work that still needs to be done

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it can throw away all the old context and

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just keep that summary,
that compaction summary, and continue

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based on that. And since that compaction,
generating that

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summary requires some tokens too, there is

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this reserved auto compact buffer
which you can't use,

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which is always reserved.
Also interesting is the slash

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usage tab which shows you your remaining

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usage per your Claude Code plan

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so that you can see how hard you can go on
Claude Code or if

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you should maybe decelerate
and write more code from

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hand again,
or maybe pay extra for the extra

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usage.