Rusty Raven c7a50ea221 Drop settings that no longer exist from the reference (#64210)
# Objective

Follow-up to #64196, which corrected documented default *values*. This
one covers documented *settings* — four entries in the reference name
settings that have been renamed, moved, or removed outright, so a reader
who copies them gets a key Zed either ignores or silently rewrites on
load.

Each claim below links to the code that makes it true:

| Documented as | Reality | Evidence |
| --- | --- | --- |
| `features` | Gone |
[`m_2026_02_02/settings.rs#L19-L27`](https://github.com/zed-industries/zed/blob/977458038b62d8a989903aeb0f0c67cd12e8eb00/crates/migrator/src/migrations/m_2026_02_02/settings.rs#L19-L27)
moves the provider out and deletes `features` once empty; no `pub
features` exists in
[`crates/settings_content/`](https://github.com/zed-industries/zed/tree/977458038b62d8a989903aeb0f0c67cd12e8eb00/crates/settings_content/src)
|
| `edit_prediction_provider` | `edit_predictions.provider` | same
migration, plus
[`default.json`](https://github.com/zed-industries/zed/blob/977458038b62d8a989903aeb0f0c67cd12e8eb00/assets/settings/default.json)
ships `"edit_predictions": { "provider": "zed" }` |
| `agent_font_size` | `agent_ui_font_size` |
[`m_2025_10_03/settings.rs#L10-L11`](https://github.com/zed-industries/zed/blob/977458038b62d8a989903aeb0f0c67cd12e8eb00/crates/migrator/src/migrations/m_2025_10_03/settings.rs#L10-L11)
— "Renames the setting `agent_font_size` to `agent_ui_font_size`" |
| `projects_online_by_default` | Gone | no match in `crates/` or
`assets/` |

## Solution

`## Features` is deleted. Its only child, [Edit Prediction
Provider](https://zed.dev/docs/reference/all-settings#edit-prediction-provider),
moves under [Edit
Predictions](https://zed.dev/docs/reference/all-settings#edit-predictions)
to sit with the other `edit_predictions` settings, and its `Setting:`
line becomes `provider`. Nothing else had to change in that subsection —
its JSON examples already used the `edit_predictions.provider` shape,
which is what made the stale wrapper easy to miss.

`agent_font_size` is renamed in place, heading included.
`projects_online_by_default` is removed.

The Edit Predictions example also listed seven `disabled_globs` where
`default.json` ships ten. #64196 corrected that number on the [Disabled
Globs](https://zed.dev/docs/reference/all-settings#disabled-globs) entry
immediately below it, so the two were contradicting each other on the
same page; the example is now synced.

## Testing

`cd docs && npx prettier --check src/` passes, per
[`docs/AGENTS.md`](https://github.com/zed-industries/zed/blob/main/docs/AGENTS.md).
Code fences stay balanced, the moved heading is unique on the page, and
no page links to `#features`, `#agent-font-size`,
`#projects-online-by-default`, or `#edit-prediction-provider`, so the
restructure breaks no anchors. No `{#action}` or `{#kb}` references are
added, so this does not depend on the action metadata `check_docs`
generates.

Found by extracting every ``Setting:`` name on the page and checking it
against the keys `assets/settings/default.json` actually contains, then
confirming each miss against `crates/settings_content/` and
`crates/migrator/`.

## Notes for review

- The same sweep says 24 scalar settings that `default.json` ships have
no entry on this page at all, including `hide_mouse`,
`word_diff_enabled`, `minimum_contrast_for_highlights`,
`modeline_lines`, `lsp_results_location` and `zoomed_padding`. That is
#53323 territory and a much larger piece of writing, so it is not here —
happy to take it on if you want it.
- `auto_update_extensions` and `terminal.font_features` are documented
but absent from `default.json`. Both are real settings
([`extension.rs`](https://github.com/zed-industries/zed/blob/977458038b62d8a989903aeb0f0c67cd12e8eb00/crates/settings_content/src/extension.rs),
[`terminal.rs`](https://github.com/zed-industries/zed/blob/977458038b62d8a989903aeb0f0c67cd12e8eb00/crates/settings_content/src/terminal.rs))
that simply have no shipped default, so I left them alone.
- Still outstanding from #64196's review notes:
`crates/settings_content/src/language.rs` and `editor.rs` carry `///
Default:` comments that feed the settings.json schema tooltips and still
disagree with the site, and `docs/src/diagnostics.md` and
`docs/src/visual-customization.md` still show the old
`diagnostics_max_severity` and `cursor_shape` defaults.

## Self-Review Checklist:

- [x] I've reviewed my own diff for quality, security, and reliability
- [x] Unsafe blocks (if any) have justifying comments
- [x] The content adheres to Zed's UI standards
([UX/UI](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)
and
[icon](https://github.com/zed-industries/zed/blob/main/crates/icons/README.md)
guidelines)
- [x] Tests cover the new/changed behavior
- [x] Performance impact has been considered and is acceptable

Release Notes:

- N/A
2026-09-15 05:22:45 +00:00
2026-08-12 08:35:43 +00:00
2026-01-22 23:57:26 +05:30
2026-08-28 20:04:24 +00:00
WIP
2023-12-14 09:25:14 -07:00
2026-09-11 09:13:44 +00:00
2026-09-11 09:13:44 +00:00
2025-02-04 09:02:59 -05:00
2025-10-27 13:27:59 -04:00
2025-10-17 18:58:14 +00:00
2026-03-17 16:34:35 +00:00

Zed

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