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File attachments let you upload files directly to a task. These files are included in Claude’s prompt as additional context.

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Use Cases

Design Specs

Attach mockups, wireframes, or screenshots for Claude to reference when building UI.

Data Samples

Include CSV files, JSON samples, or API response examples.

Documentation

Attach spec documents, requirements, or architecture diagrams.

Error Logs

Upload log files or stack traces for bugfix tasks.

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How It Works

1

Open a task

Click on any task card to open the detail view.
2

Upload files

Use the attachment section to upload one or more files. Files are stored in Claude Board’s data directory.
3

Claude receives them

When the agent starts, attached files are included in the prompt. Claude can read their contents as part of the task context.

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Supported Files

Attachments work best with text-based files that Claude can read directly:
  • Source code files (.js, .py, .ts, etc.)
  • Data files (.json, .csv, .yaml)
  • Documents (.txt, .md)
  • Images (.png, .jpg) — included as visual context
Large binary files are stored but may not be useful as prompt context. Keep attachments focused and relevant to the task.

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Managing Attachments

  • Attach files when creating a task or from the task detail view
  • Remove attachments by clicking the delete icon next to each file
  • Attachments are deleted when the task is deleted