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Opus 4.7 is adaptive-only (extended thinking returns 400) and defaults thinking content to "omitted". Removes stale CLAUDE_CODE_DISABLE_ADAPTIVE_THINKING workaround from v0.30.1, adds showThinkingSummaries to restore visible thinking blocks, and splits effort levels (xhigh base, max work override).
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Opus 4.7 launched with several breaking changes: extended thinking is removed (adaptive-only now, sending the old fixed-budget param returns 400), and thinking content defaults to
"omitted"rather than"summarized"— meaning thinking blocks appear in the TUI but with empty content.ANTHROPIC_DEFAULT_OPUS_MODEL→claude-opus-4-7(base) /claude-opus-4-7[1m](work profile)CLAUDE_CODE_DISABLE_ADAPTIVE_THINKING— was a v0.30.1 workaround for an Opus 4.6 under-allocation bug; no-op on 4.7showThinkingSummaries: trueto fix silent empty thinking blocks (separate fromalwaysThinkingEnabled, which only controls the TUI toggle)xhighas base default (new 4.7 tier, falls back tohighon non-4.7 models),maxas work profile override