Fix long-response fallback in Rich streaming#133
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Jun 5, 2026
Follow-up to the long-response Rich Live fallback (PR SafeRL-Lab#133). ui/render.py: _rendered_line_count now uses a cheap per-line wrap estimate to short-circuit the expensive full console.render_lines() measurement while a response stays comfortably under the limit. Normal responses no longer pay an extra full Markdown re-render on every streamed chunk (was O(n^2) on the hot path); the precise render only runs as output nears the fallback limit. On render failure it now falls back to the cheap estimate instead of 0 so oversized content still triggers the plain-streaming fallback. Docs: document the automatic per-response plain-streaming fallback (wrap- / terminal-height aware) across README News, docs/news.md, features.md, advanced.md, and the 7 i18n READMEs. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Summary
Fix Rich Live streaming fallback for long responses.
Problem
Large streamed responses can exceed the practical redraw area for Rich Live. In some terminals, this may leave stale or duplicated output while the response is still streaming. The previous fallback logic also did not fully isolate fallback mode to the current response.
Changes
flush_response()so the next response can use Live again.Test Plan