> ## Documentation Index
> Fetch the complete documentation index at: https://developers.myhero.so/llms.txt
> Use this file to discover all available pages before exploring further.

# Append markdown to document

> Append content to the END of an existing document. Existing content is PRESERVED — new content is added after it. Use when the user asks to ADD, INSERT…

`append_markdown_to_document`

Append content to the END of an existing document. Existing content is PRESERVED — new content is added after it. Use when the user asks to ADD, INSERT, or EXTEND a document (NOT rewrite it). Same extended Markdown syntax as write\_document\_markdown — see system prompt for reference.

## Parameters

<ParamField path="documentId" type="string" required>
  ID of the document to append to.
</ParamField>

<ParamField path="markdown" type="string" required>
  Content to append, in extended Markdown.
</ParamField>