Text file editing

[kof]

Build first-class text-file workflows around project assets.

Asset text editor

• Allow uploading supported text files from the Assets panel.
• Allow creating a new blank text file from the Assets panel.
• Open supported text assets in an editor dialog on double-click.
• Edit and persist text content while preserving the stable asset ID.
• Protect edits from overwriting a newer asset revision.
• Provide syntax highlighting for every supported editable text format.
• Show created and last-modified timestamps in asset settings.
• Support downloading or externally opening asset formats that cannot be edited as text.

Markdown editing

• Provide common Markdown formatting controls.
• Provide heading-level selection.
• Reuse the existing asset picker for Markdown images.
• Reuse the existing link control for internal and external links.
• Provide a resizable code/preview split view.
• Resolve project asset references correctly in Markdown preview.

Asset organization and upload

• Open assets and folders on double-click while keeping actions available in context and dropdown menus.
• Support dropping a desktop folder into Assets.
• Preserve the dropped folder hierarchy instead of flattening its files.
• Support asset rename, description, folder placement, duplication, replacement, download, and deletion.

Asset API and MCP

• Expose folder and asset CRUD through MCP.
• Expose single and batch uploads with folder placement through MCP.
• Expose revision-safe text-content editing and downloading through MCP.
• Expose usage lookup, duplication, replacement, and confirmation-gated deletion through MCP.
• Keep the Builder and MCP content-editing paths on the same reusable storage/revision logic.
• Support querying assets by extension and filename.
• Support selecting whether asset contents are included in query results.
• Define bounded content-query behavior for large or binary assets.
• Parse JSON asset contents as structured objects when requested.

Data bindings

• Allow bindable fields to consume selected asset metadata.
• Allow bindable fields to consume structured data from supported asset contents.

Implementation: Ref #5918