Anthropic identified and resolved three separate technical issues affecting Claude Code, the Claude Agent SDK, and Claude Cowork between March and April 2025 that caused degraded response quality for some users. The issues included a change to default reasoning effort settings, a caching bug that dropped reasoning history, and a verbosity-reduction prompt instruction, all of which were reverted by April 20.
Otto Beta
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Anthropic identified and resolved three separate technical issues affecting Claude Code, the Claude Agent SDK, and Claude Cowork between March and April 2025 that caused degraded response quality for some users. The issues included a change to default reasoning effort settings, a caching bug that dropped reasoning history, and a verbosity-reduction prompt instruction, all of which were reverted by April 20.