1 files changed, 21 insertions, 9 deletions

diff --git a/docs/superpowers/plans/2026-08-03-post-0.1.0-usability.md b/docs/superpowers/plans/2026-08-03-post-0.1.0-usability.md
index 17cf434..ad6dbc0 100644
--- a/docs/superpowers/plans/2026-08-03-post-0.1.0-usability.md
+++ b/docs/superpowers/plans/2026-08-03-post-0.1.0-usability.md
@@ -77,7 +77,7 @@ taking that too literally.
 | 17 | No completion for tags in the query bar | workflow | M | **done** |
 | 18 | No visual cue that there are unsynced edits | feedback | S | **done** |
 | 19 | No prompt to sync on exit when edits are pending | behavior | S | **done** |
-| 20 | Thread view does not match the user's mental model | presentation | L | built on branch `item-20-message-rows`, **not merged**; see 53 |
+| 20 | Thread view does not match the user's mental model | presentation | L | rebuilt as cards on branch `card-list`, **not merged**; awaiting the user's verdict |
 | 21 | Default shortcuts are not sensible enough | discoverability | S | open |
 | 22 | Translatability audit and i18n wiring | correctness | M | open |
 | 23 | No way to save a search query from the UI | workflow | M | open |
@@ -108,16 +108,16 @@ taking that too literally.
 | 48 | Removing a tag suggests every tag, not the thread's own | workflow | XS | **done** |
 | 49 | Sync runs every account regardless of what changed | workflow | M | **done** |
 | 50 | Esc blanks the pane but leaves the row selected | workflow | XS | **done** |
-| 51 | Clicking a subject scrolls the list sideways | presentation | XS | open; resolved as a side effect of 53, do not work separately |
+| 51 | Clicking a subject scrolls the list sideways | presentation | XS | built on branch `card-list`, **not merged**; a card is viewport width |
 | 52 | `test_querycompleter` fails under Wayland, passes offscreen | testing | XS | **done** |
-| 53 | Message rows still read as a table, not as a conversation | presentation | M | open, specified 2026-08-09; see the card-list spec |
+| 53 | Message rows still read as a table, not as a conversation | presentation | M | built 2026-08-10 on branch `card-list`, **not merged**; awaiting the user's verdict |
 | 54 | A cron sync carries the edits but the count still says pending | correctness | S | **done** |
 | 55 | In a narrow window the message pane is invisible | presentation | XS | **done** |
 | 56 | No action carries an icon, so the toolbar reserves space for nothing | presentation | S | **done** |
 | 57 | "Flag" would read better as "Important" or "Starred" | presentation | XS | **done** |
 | 58 | `message_zoom` documents a 0.5 to 3.0 range and enforces none of it | correctness | XS | **done** |
 | 59 | Archive and Mark all read shipped with the same icon | presentation | XS | **done** |
-| 60 | Next thread dead-ends on the last reply of an expanded thread | defect | XS | open; branch only, fix as part of 53 |
+| 60 | Next thread dead-ends on the last reply of an expanded thread | defect | XS | **done** on the branch; already fixed by 5487d58, see below |
 
 Sizes are rough: XS under an hour, S a sitting, M a session.
 
@@ -3683,11 +3683,23 @@ navigation actions against the same rule.
 current index, which follow visible rows across parent boundaries. For
 thread-to-thread jumping, skip any index whose `IsMessageRole` is true.
 
-**Specified as part of the card-list spec**
-(`docs/superpowers/specs/2026-08-09-card-list-design.md`), which also adds
-Alt+Up/Down for these actions and relies on `QTreeView`'s built-in Up/Down for
-stepping through replies. Fix it there rather than separately, unless the card
-list is dropped.
+**The cause above is wrong, and was corrected on 2026-08-10.** It was read off
+`master`, where the arithmetic really is `current.row() + 1`. The branch does
+not do that: `5487d58` added `MainWindow::threadRowOf()`, which walks up to the
+containing thread BEFORE the arithmetic, so from the last reply of an expanded
+thread `next_thread` already reached the next thread. The defect was fixed in
+the same commit that could have introduced it, one commit before this entry was
+written. Verified by writing both failing tests first, on the branch, and
+watching them pass against unchanged code.
+
+The entry is kept rather than deleted, because the reasoning it records is
+sound and the tests it demanded now exist. It is a reminder that a cause
+"verified in code" is only verified against the branch it was read on.
+
+**Superseded by the card-list work all the same.** Both actions now walk with
+`indexBelow`/`indexAbove` (`card-list`, 2026-08-10), so nothing in that path is
+keyed on a row number, which is the rule a deeper tree would break next.
+Alt+Up/Down were added alongside Ctrl+J/K there.
 
 **Constraint.** The test that would catch this must start from the **last reply
 of an expanded thread**. A test that arrows down a collapsed list passes against