claude code agent 227 5e8cb628f0 feat(ai-chat): compact reasoning rendering — collapse blank lines (#181) ...

The "Thinking" (reasoning) block rendered with large vertical gaps: models
emit reasoning with a blank line (\n\n) between every list item and
paragraph, which `marked` turns into loose lists (each <li> wrapped in a
<p>) and separate <p> paragraphs, each carrying a margin.

- Add `collapseBlankLines(text)`: collapse 2+ newlines to one, EXCEPT inside
  fenced code blocks (``` / ~~~) where blank lines are significant. Applied
  in reasoning-block.tsx before renderChatMarkdown, so loose lists become
  tight (no <li><p>) and paragraphs join; `breaks: true` keeps single \n as
  <br>, preserving line breaks. Reasoning-only — the normal answer is
  untouched.
- Drop `white-space: pre-wrap` from `.reasoningText`: on the rendered
  markdown <div> it turned the newlines between block tags into visible
  blank lines on top of the margins. The plain-text fallback <Text> that
  needs pre-wrap already sets it inline.

Tests: collapseBlankLines unit (collapse, fence preservation incl. tilde and
unclosed fences) + rendered-HTML assertions that a blank-line-separated list
becomes a tight list and still parses as a list after a paragraph.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

2026-06-25 11:36:01 +03:00

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