MR: https://gitlab.wikimedia.org/daanvr/upload-workbench/-/merge_requests/26
Preview: https://upload-workbench.toolforge.org/mr-26/

Quick research notes (template fields used by each Commons template, captured during implementation):

• {{Information}} — description, date, source, author, permission, other_versions
• {{Artwork}} — artist, title, description, date, medium, dimensions, institution, location, references, object_history, credit_line, inscriptions, notes, accession_number, source, permission, other_versions
• {{Photograph}} — photographer, title, description, depicted people, depicted place, date, medium, dimensions, institution, department, references, object history, exhibition history, credit line, inscriptions, notes, accession number, source, permission, other_versions
• {{Book}} — Author, Translator, Editor, Illustrator, Title, Subtitle, Series title, Volume, Edition, Publisher, Printer, Date, City, Language, Description, Source, Permission, Image, Pageoverview, Wikisource, Homecat, Other_versions, ISBN, LCCN, OCLC, Other_fields

Each builtin template only maps the params for which the workbench already has a column (the rest are left empty). Custom templates use {{field:KEY}} placeholders against any workbench column key.

Well it is going in the right direction, however I I would like some more clarity on which columns are related to which template. Uh also maybe the possibility to hide columns that are not in that template. Um Also it said it add um a add columns for this template, but I didn't see which one and if any were added

Iterated per feedback (commit b850123):

1. Per-row template badges in the Columns tab — each column now shows a small inline badge surfacing its relationship to the active template (|description= for direct field mappings, custom for custom-template placeholders, recommended for the broader hint list). The column ↔ template wiring is visible directly on the row, no need to switch tabs.

2. New "In <Template>" filter chip on the Columns tab — quick way to hide every column that isn't used by the chosen template; counts the in-template columns next to the chip label like the other legend filters.

3. After clicking "Add N columns" the user now lands on the Columns tab pre-filtered to the active template, sees a banner naming the columns that were just enabled (by label, not raw key), and the matching rows flash-highlight for ~4 s. Previously the action ran silently.

Bonus: the Templates tab's "Columns this template uses" section now splits direct field mappings from recommended-only columns and renders each entry as "Column label → |param=" with a green/grey enabled-dot, instead of bare key codes.

Preview updated: https://upload-workbench.toolforge.org/mr-26/