Attaching Context

Enrich your prompts with files, PDFs, and pasted text.

Second Brain lets you attach extra context to any prompt. This is useful when agents need information that is not already in your vault — such as a document you want to summarize, a research paper, or notes you have copied from elsewhere.

Attaching files

1. Open the Attach popover

   Click the Attach button in the input toolbar (left side of the input bar).

2. Upload your files

   Select one or more files. Supported types: PDF (.pdf), Markdown (.md), plain text (.txt).

3. Wait for processing

   The app extracts and processes the text from each file. A progress bar shows extraction status when multiple files are uploaded.

4. Send your prompt

   Click Send. The extracted file content is included automatically in the prompt sent to agents.

Files are processed in-memory and are not saved to your vault unless an agent explicitly creates a note from them. To turn an attached file into a vault note, ask the agent to do so in your prompt.

Pasting text

Inside the Attach popover there is a Paste from clipboard text area. Paste any additional context — meeting notes, code snippets, URLs, or any other text — and it will be included in the prompt alongside your message and any uploaded files.

Supported file types

Type	What is extracted
.pdf	Text is extracted from all pages
.md	Full markdown content is included
.txt	Raw text content is included

Attach a research paper and use Research mode to generate a structured vault note from it. The Researcher agent will synthesize the content and the Builder will write it directly to your vault.