Context Window Size Notification / Claude Code v2.1.92

What

A new notification appears when your context window grows large, showing approximate uncached token count and suggesting /clear.

Details

Triggers when uncached tokens exceed ~50,000
Only shows if more than a certain time has passed since session start
Format: ~Nk uncached · /clear to start fresh
Helps users understand when conversation context is getting expensive

Evidence

Context notification function (search for "k uncached", "/clear to start fresh")

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

How sure we are

One source agreesOne thing we can check says the same as this entry.

Anthropic's release notes agreeFixed idle-return "/clear to save X tokens" hint showing cumulative session tokens instead of current context size

See this entry in the whole of v2.1.92 →

The build it came inv2.1.92

4 Apr 2026 · 28 entries, this one is #6.

Either side of it

v2.1.91Older
v2.1.94Newer

Open the release →

Names in this entry

slash/clear
Start a new conversation with empty context. Pass a name to label the previous conversation in the /resume picker. To free up context while continuing the same conversation, use /compact instead. Resume the previous conversation with /resume, or, in the same Claude Code process, restore it from the rewind menu's previous-session entry. Aliases: /reset, /new

Anthropic's note

Upstream's own release notes for v2.1.92 name something this entry names, so the two are probably about the same change. Probably: the pairing is made on a shared name rather than on the words around it.

Fixed idle-return "/clear to save X tokens" hint showing cumulative session tokens instead of current context size

Is this right?