Ensure placeholder blocks cannot be placed in any UI

Created on 10 January 2026, 3 days ago

Problem/Motivation

In Support "placeholder" dashboard blocks Needs review we actually added "placeholder blocks". Its purpose is being used in recipes.
We forgot there to actually restrict that an editor can actually create them, because there's no way we can provide a good UI for those anyway.

Proposed resolution

Restrict them from layout builder and block UI.

Remaining tasks

Fix + tests

User interface changes

No weird blocks show up when placing blocks.

API changes

None.

Data model changes

None.

📌 Task
Status

Active

Version

2.0

Component

Code

Created by

🇪🇸Spain penyaskito Seville 💃, Spain 🇪🇸, UTC+2 🇪🇺

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