Alt-u and Alt-U undo and redo

helix's earlier/later walk its history tree by time; pardes's history is a
line, where earlier and later are undo and redo, so the keys are aliases.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

1 files changed, 1 insertions, 2 deletions

diff --git a/docs/helix-keys.md b/docs/helix-keys.md
index 2928d78e..d2915cbb 100644
--- a/docs/helix-keys.md
+++ b/docs/helix-keys.md
@@ -118,7 +118,7 @@ language-backend queries, and the shell pipe.
 | `d` | delete selection (implicit or explicit); bare cursor = the 1-wide selection | always yanks (`Alt-d` noyank in B); terminals: drops typed runs only | helix-verified |
 | `c` | change (delete + insert mode); linewise selections open a fresh indented line | same shape as `d` | helix-verified |
 | `y` | yank each range's text into the register (`"<reg>` names one, else `"`), one value per range | line-yank vim-ism removed (phase 5); yank keeps selection AND cursor (helix). The system clipboard is `"+y` / `SPC y`, helix's own split: a `d` of one character never clobbers what the desktop holds | helix-verified |
-| `u` / `U` | undo / redo | restores the pre-edit selection (helix); snapshot granularity, no `Alt-u`/`Alt-U` history walking (skipped) | helix-verified |
+| `u` / `U` | undo / redo | restores the pre-edit selection (helix); snapshot granularity, `Alt-u`/`Alt-U` are the same two: helix walks a history tree by time with them, and pardes's history is linear, so earlier and later ARE undo and redo | helix-verified |
 | `p` (normal) | paste the register after each range: value i at range i, the last value repeated when there are fewer | helix `paste_impl`. `"+p` asks the system clipboard (`SPC p`); on a tty that read is OSC 52, which most terminals refuse: an honest no-op rather than a paste of the wrong text | helix-verified |
 | `Esc` (body normal) | clear a pending modal prefix / exit select mode, keeping the selection, then run `Last`: hop to the pane you were in before this one, whichever kind it was, exactly like `SPC j j` — so held down it alternates between two panes, two files as readily as a file and its shell. A PDF pane is the ONE exception: there Esc is the document's own cancel (drop the mouse selection and the search overlay, stay where you are reading) and `Shift-Esc` is the hop out, while raw tty only intercepts unmodified Esc at a detected shell prompt | Pardes-specific focus binding layered on helix's cleanup. A leader path, tag, topbar or search owns Esc while it is active; raw tty forwards it | pardes-specific (cleanup helix-verified) |
 | `Esc` (insert) | back to normal mode, cursor right after the insertion (no vim left-step) | | helix-verified |
@@ -357,7 +357,6 @@ text.
 | `]g [g ]G [G` | git change jumps | needs VCS diff state |
 | insert `Ctrl-x` | completion menu | completion exists, but not as a popup: insert-mode Tab straight after a `.` opens a buffer of candidate DECLARATIONS (section A). helix's menu itself is skipped |
 | `Ctrl-s` (normal) | save jumplist position | jumplist itself is implemented (`Ctrl-o`/`Ctrl-i`, section A); only the explicit save point is skipped |
-| `Alt-u` / `Alt-U` | undo-history earlier/later | history timeline — linear snapshot u/U covers pardes |
 | `:` | command mode | side-effects/file-ops — pardes builtins live in the tag, and `:` is bound to focusing it (section A) |
 | `gf` | goto file under selection | covered by pardes Enter-look |
 | `Ctrl-z` | suspend | pardes IS the terminal multiplexer |