New npm package for automatic recovery of broken streaming markdown

is a new standalone package that brings intelligent incomplete Markdown handling to any application.Remend

Previously part of 's Markdown termination logic, Remend is now a standalone library () you can use in any application.Streamdownnpm i remend

AI models stream Markdown token-by-token, which often produces incomplete syntax that breaks rendering. For example:

Without correction, these patterns fail to render, leak raw Markdown, or disrupt layout:

Remend automatically detects and completes unterminated Markdown blocks, ensuring clean, stable output during streaming.

As the stream continues and the actual closing markers arrive, the content seamlessly updates, giving users a polished experience even mid-stream.

It works with any Markdown renderer as a pre-processor. For example:

Remend powers the markdown rendering in Streamdown and has been battle-tested in production AI applications. It includes intelligent rules to avoid false positives and handles complex edge cases like:

To get started, either use it through or install it standalone with:Streamdown

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Why it matters

• Unclosed fences

• Half-finished bold/italic markers

• Unterminated links or lists

• Mathematical expressions with underscores in LaTeX blocks

• Product codes and variable names with asterisks/underscores

• List items with formatting markers

• Nested brackets in links