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DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

← All of v2.1.251 Home All releases ←olderv2.1.250

Claude Code v2.1.251 28 Aug 2026

A proactivity menu is wired into the main input area

Not switched on

Useful1 Signal5

Terminal UI Notable

The input area accepts a flag for a proactivity menu, but nothing in this build opens it.

A proactivity menu state is wired into the prompt input with no surface that opens it.

What

The main prompt input component now receives a flag for whether a "proactivity" menu is open, alongside the existing help overlay and mode state. Nothing in this build shows what opens that menu.

Details

Passed as a prop next to the help-overlay flag, so the two are treated as sibling input-area surfaces.

Evidence

proactivityMenuOpen: Tn

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

See this entry in the whole of v2.1.251 →