Anthropic just hid the thinking summaries...again.

Anthropic has reportedly hidden thinking summaries again in its latest Windows desktop app. Users are finding that these summaries, previously visible as separate blocks, are now buried within tool-call blocks, requiring extra clicks to access. This change has led to user frustration, with some suggesting that Anthropic should officially announce if it intends to retire or hide this feature rather than making unannounced alterations.

This report highlights a repeated pattern of Anthropic hiding thinking summaries, unlike other developers who typically announce such feature changes.