agent_coder
2d30ad1fa2
The reasoning block memoized its markdown render on [trimmed] alone, so as the
reasoning text streamed in it re-parsed the whole, ever-growing text (marked +
DOMPurify) on every throttled delta (~20Hz) — an O(n^2) CPU storm that pinned the
main thread and froze the chat during a long "thinking" phase. Worse, the block is
collapsed by default, so all that parsing was for a hidden body the user never sees
(html is only shown inside <Collapse in={open}>).
Gate the parse on `open`: collapsed shows the cheap raw-text fallback and does no
markdown parsing; expanding parses the current text once (an instant user click), and
further streaming while open is the normal per-delta append render, like the answer.
Test: assert renderChatMarkdown is not called while collapsed and is called once on
expand.
closes #302
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
React + TypeScript + Vite
This template provides a minimal setup to get React working in Vite with HMR and some ESLint rules.
Currently, two official plugins are available:
- @vitejs/plugin-react uses Babel for Fast Refresh
- @vitejs/plugin-react-swc uses SWC for Fast Refresh
Expanding the ESLint configuration
If you are developing a production application, we recommend updating the configuration to enable type aware lint rules:
- Configure the top-level
parserOptionsproperty like this:
parserOptions: {
ecmaVersion: 'latest',
sourceType: 'module',
project: ['./tsconfig.json', './tsconfig.node.json'],
tsconfigRootDir: __dirname,
},
- Replace
plugin:@typescript-eslint/recommendedtoplugin:@typescript-eslint/recommended-type-checkedorplugin:@typescript-eslint/strict-type-checked - Optionally add
plugin:@typescript-eslint/stylistic-type-checked - Install eslint-plugin-react and add
plugin:react/recommended&plugin:react/jsx-runtimeto theextendslist