Thinking mode Unicode tags leaking into visible output

Related Claude Code issues

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• [BUG] Thinking tags visible in output on Windows
  Resolved 💬 3 #14601
• Session-start-hook tags visible in terminal output
  Resolved 💬 6 #8964
• system-reminder tags visible in terminal output (v2.1.71)
  Resolved 💬 3 v2.1.71 #32565
• [DOCS] Tags please?
  Resolved 💬 3 #14074
• [BUG] Thinking blocks not visible in UI with Claude Opus 4.7
  Resolved 💬 2 v2.1.74 #50171
• [BUG] Thinking block no longer visible in VS Code extension
  Open 💬 2 v2.1.170 #68898
• Internal /rate-limit-options command leaking into user history
  Resolved 💬 6 #17450
• [BUG] Thinking content leaks to output despite properly closed thinking tags
  Open 💬 4 v2.1.7 #20081

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