Issue Summary

When using the Atlassian MCP server to update a Jira issue description, the update process overwrites the entire issue payload rather than performing a field-scoped update. This results in the loss of existing formatting and the destructive deletion of all file attachments associated with the ticket

Steps to Reproduce

1. Open a Jira issue that contains a description with formatting and several file attachments.

1. Use an MCP-integrated tool (like Claude Cowork)  to request a minor text correction in the description (e.g., correcting a typo).

1. Observe the update being applied to the Jira issue.

Expected Results

Only the specific text within the description field is updated. All existing formatting, inline images, and file attachments remain intact.

Actual Results

The update overwrites the description field entirely, stripping out wiki/markdown formatting and inline images. Furthermore, all file attachments on the issue are deleted destructively without any record of deletion in the issue history.

Workaround

There is currently no direct workaround to prevent the deletion during the update.

Users may be able to get the previous description from the Jira History tab and use Rovo to convert it into the rich text format. But this will not restore the attachments.