As part of Article Guidance (T396029), by typing the title for a new article, users can select the specific subject for the article. The list is based on Wikidata items. Currently, it only shows those items that are supported by the current set of outlines defined. However, when the Wikidata item is not supported by an outline, the item is completely hidden from the list, which can cause confusion (is the topic not on wikidata? maybe under a different name?).

This ticket proposes to adjust the treatment of matching items that are not supported by an existign outline:

• For cases where an article already exists, we can just display them in the results. When users select, they will reach the existing view inviting them to edit those further (T420334).
• For cases where an article does not exist for the Wikidata item, we can display it in a way that communicates that it is not supported yet by an outline (de-emphasized, with a label...) and de-prioritize it in the list of the results (shown at the end or in a separate group at the bottom). Selecting these could lead to a similar view as (T420334) where we confirm that it is not supported yet and provide alternatives: create with the regular non-guided experience (directing users to Visual Editor or Article Wizard) and request support for the type of the selected article (talk page message with info on the selected article not supported yet).

In this way, users will know that their query was understood by the system and that the element they want to create an article for is not supported yet.
This opens an opportunity to instrument and identify these cases too. In the context of the experiment, we may want to exclude and/or analyze separately these users that Article Guidance could not support yet.

UX Design Updates

Search results

• Supported items appear first (up to 5), unsupported items appear after (up to 3)
• Supported items show their outline label (e.g. "actor"); unsupported items show no label
• Unsupported items are selectable and lead to the unsupported topic step
• When all results are unsupported, all are shown (up to 3)
• When all results are supported, behaves as before (up to 5)

Unsupported topic step

Structure:

• Topic card: CdxCard showing selected Wikidata item (thumbnail, title, description), non-interactive
• Section heading: <h3> — "No guidance for this topic yet"
  • @font-size-medium, @font-weight-bold, margin: 0 0 12px 0
• Option list: icon + title + description rows with @border-color-subtle dividers (same pattern as NotabilityStep)

Option 1 — Request support for this type

• Icon: cdxIconUserTalk in @color-progressive
• Title: "Request support for this type" — @font-weight-normal, @color-progressive
• Description: "Ask the community to add guidance for this type of article." — @font-size-small, @color-subtle
• Action: opens project talk page and prefill the talk-page request with the selected article details, including title, Wikidata QID/link, description, source wiki, and intended article, so community members have enough context to create a matching outline later.

Option 2 — Start writing

• Icon: cdxIconArticle in @color-progressive
• Title: "Start writing" — @font-weight-normal, @color-progressive
• Description: "Write this article without article guidance." — @font-size-small, @color-subtle
• Action: opens VisualEditor for the article title