Expired85% confidenceEventTime unknown
User Stellar Accident analyzed log data of 17,871 thinking blocks and 230,000 tool calls, and pointed out that Claude Code exhibited significant performance degradation after the thought content masking pushed in February.
1
Sources
85%
Confidence
Medium-term (~90 days)
Relevance
5/31/2026
First Seen
Valid until: 8/29/2026(expired)
Sources
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