diff --git a/context/code/clients.md b/context/code/clients.md
index c9daea61..b535916a 100644
--- a/context/code/clients.md
+++ b/context/code/clients.md
@@ -891,8 +891,23 @@ gotcha 47 asks for — closing e24v has to come to that line and delete it.
   broadcasts nothing, so it reaches this user and no one else. This argument
   arrived as `edit_or_drill`'s, i.e. about `i`/`a` on an aggregate, and for a
   while it read as doctrine for `>` while `>` was still silent. Both doors now
-  refuse, and **they refuse with different sentences on purpose**: "this key is
-  not built yet" and "this cell is not yours to write" are different facts.
+  refuse, and **they name the same missing feature in the same words** —
+  `not_yet("drill")` — because they reach the same one. In the TUI,
+  `EditOrDrill` hands an aggregate straight to `DrillIntoCell`, so an aggregate
+  *is* writable there, by drilling; `i` on it is drill by another door. `i`'s
+  sentence adds only *why* it drilled rather than edited ("an aggregate is
+  edited by drilling in — …"), and `>` still says nothing about aggregates,
+  because it is refused whatever the cell is.
+
+  This **reverses** what this bullet said until improvise-s8h7: that the two
+  refused with different sentences on purpose, "this key is not built yet"
+  against "this cell is not yours to write". The second half was false about
+  the application — nothing refuses a write to an aggregate; the TUI drills —
+  and the separate wording hid from a browser user that `i` and `>` were one
+  missing feature. The help page's `edit-or-drill` caption carried the same
+  error, calling `i` only "Edit current cell"; it now says it drills into an
+  aggregate, which is true in both front ends because the browser's refusal
+  names drill. Delivering drill is `improvise-obtu`'s, not this bullet's.
 - **The commit's write is not spelled again here.** It is
   `Client::typed_cell`'s, the same one click-to-edit uses, so a browser keyboard
   commit and a browser mouse commit cannot disagree about what `""` or `"42"`
diff --git a/context/test-evidence/clients.md b/context/test-evidence/clients.md
index fd39ad65..e130266a 100644
--- a/context/test-evidence/clients.md
+++ b/context/test-evidence/clients.md
@@ -1389,28 +1389,74 @@ happened* passes against a page that has stopped listening, so it presses `i`
 afterwards and requires `#status` to change. Without that, this file would be
 folklore with a green tick.
 
-### the_drill_key_and_an_aggregate_edit_refuse_for_different_reasons
+### an_aggregate_edit_names_the_same_missing_drill_as_the_drill_key
 
-The Rust half of the interim, and the assertion that carries the whole weight.
-Two keys on the same aggregate cell must both refuse and must **not** refuse
-with the same sentence: `>` says drill is unavailable, `i` says drilling into an
-aggregate needs the host. Collapsing them into one message would be the
-tempting tidy-up and would lose the distinction between "this key does nothing
-here yet" and "this cell is not one you may write".
+improvise-s8h7. Until it, this test was
+`the_drill_key_and_an_aggregate_edit_refuse_for_different_reasons` and asserted
+the opposite: that `i` and `>` on an aggregate must refuse with *different*
+sentences, "this key does nothing here yet" against "this cell is not one you
+may write". The second half was false about the application. `EditOrDrill`
+hands an aggregated cell to `DrillIntoCell`, so in the TUI `i` on an aggregate
+**is** drill — nothing refuses the write, it drills — and the browser's
+separate wording ("drilling into an aggregate needs the host") hid that `i` and
+`>` are one missing feature. The reasoning is `context/code/clients.md`.
 
-**The injection, and why it is not the obvious one.** Replacing `>`'s sentence
-with the *aggregate* sentence looks like it should fail on the first assertion —
-and does not: that sentence contains both "drill" and "browser", so it clears
-the substring check. What fires is the anti-aggregate assertion lower down. The
-claim that the second assertion is the load-bearing one was doubted on review,
-tested, and confirmed; record it here because the first assertion reads like the
-discriminating one and is not.
+So the test now asserts four things on one aggregate fixture: `>` names drill
+and the browser; `>` does **not** mention aggregates (it is refused whatever the
+cell is); `i`'s sentence **contains** `>`'s sentence verbatim; and `i`'s
+sentence mentions "aggregate", so it still says why it drilled rather than
+edited. The fixture is `client_on(CellId::Aggregate(..))` rather than the old
+empty `in_mode` state, because `i` needs a cell under the cursor to reach the
+`Aggregate` arm at all — on an empty grid it answers nothing and only `>` was
+ever exercised.
 
-The harness sibling (`drill.spec.js`) asserts the same distinction in a browser,
-but its `not.toContainText("aggregate")` is **decoration under the only
-injection that exists** — Playwright throws at the positive assertion above it
-first, so that line is never reached. The Rust assertion is the guard; the
-harness one is end-to-end confirmation that the string survives the wire.
+**Three injections, each failing at a different assertion.** Run, not reasoned:
+
+- `i` says only `not_yet("drill")` — the "why" dropped. Fails at the last
+  assertion, "and `i` must still say why". This is the tempting over-tidy fix.
+- `>`'s `declined` subject becomes "drilling into an aggregate". Fails at the
+  anti-aggregate assertion on `>`. Note that `i` still contains `>`'s *old*
+  sentence here, because `edit_or_drill` calls `not_yet("drill")` itself rather
+  than going through `declined` — so the containment assertion alone would not
+  have caught a `>` that started blaming the cell.
+- `i` paraphrases ("… drill needs the host"). Fails at the containment
+  assertion: the same feature named in different words is exactly what the
+  ticket reported.
+
+The harness sibling (`drill.spec.js`) asserts the same wording in a browser.
+Its `not.toContainText("aggregate")` on `>` is still **decoration under the
+only injection that exists** — Playwright throws at the positive assertion
+above it first — so the Rust assertion is the guard and the harness is
+end-to-end confirmation that the string survives the wire.
+
+### the_edit_key_row_says_it_drills_into_an_aggregate
+
+improvise-s8h7, the help-page half. The `edit-or-drill` row on the Editing page
+read "Edit current cell", while `i`/`a` on an aggregate drill in the TUI and
+name drill in the browser. The row is found by its **keys** — the labels
+`keys_for(Normal, "edit-or-drill", ["editing"])` returns — not by its caption,
+and exactly one row must carry them, so a caption fix that also moved or
+duplicated the row fails on the `let [..]` pattern rather than passing on
+whichever copy was found first. Failed at HEAD on the caption; the injection
+"Edit current cell, or drill" (drill named, aggregate not) fails it too, since
+`>` is also drill and the row must say *when* `i` drills.
+
+### only_the_edit_key_is_captioned_as_editing_the_cell
+
+Found while fixing improvise-s8h7, not predicted by it. The row below the edit
+key read `Enter  Edit current cell (same as i)`, but Normal-mode Enter is bound
+to `enter-advance` alone — not a `Binding::Sequence` — and `EnterAdvance` only
+moves the cursor down, wrapping to the next column. The test takes every help
+row captioned "Edit current cell" and requires its keys to be a subset of
+`edit-or-drill`'s; at HEAD it failed naming `["Enter"]`. The fix moved the row
+to the Navigation page's "Cursor movement" section with a caption that says
+what it does.
+
+Its reach is stated rather than implied: it checks the one phrase that was
+false. A caption that misdescribes Enter in *other* words passes it: a caption
+is prose, and nothing checks it against the command it documents. That is a
+neighbour of improvise-wk18, not the same gap — wk18 is about `literal()` rows
+whose *keys* go unchecked; here the keys were right and the words were wrong.
 
 ### a_view_row_click_focuses_moves_and_switches_to_the_row_clicked
 
diff --git a/crates/improvise-protocol/src/help.rs b/crates/improvise-protocol/src/help.rs
index 8143ec92..724a373c 100644
--- a/crates/improvise-protocol/src/help.rs
+++ b/crates/improvise-protocol/src/help.rs
@@ -439,6 +439,12 @@ fn navigation() -> Vec<HelpLine> {
         Some(HelpLine::Heading("Cursor movement")),
         Some(HelpLine::Blank),
         keys(n, "move-selection", None, "Move one cell"),
+        keys(
+            n,
+            "enter-advance",
+            None,
+            "Move down, wrapping to the next column",
+        ),
         Some(literal("gg", "Jump to first row")),
         keys(n, "jump-last-row", None, "Jump to last row"),
         keys(n, "jump-first-col", None, "Jump to first column"),
@@ -513,8 +519,12 @@ fn editing() -> Vec<HelpLine> {
         Some(HelpLine::Blank),
         Some(HelpLine::Heading("Entering edit mode")),
         Some(HelpLine::Blank),
-        keys(n, "edit-or-drill", Some(&["editing"]), "Edit current cell"),
-        keys(n, "enter-advance", None, "Edit current cell (same as i)"),
+        keys(
+            n,
+            "edit-or-drill",
+            Some(&["editing"]),
+            "Edit current cell (drill into an aggregate)",
+        ),
         keys(
             e,
             "clear-buffer",
@@ -950,6 +960,58 @@ mod tests {
             "an undescribed name falls back to itself rather than to silence"
         );
     }
+
+    fn rows() -> Vec<(Vec<String>, &'static str)> {
+        pages()
+            .into_iter()
+            .flat_map(|page| page.lines)
+            .filter_map(|line| match line {
+                HelpLine::Keys { keys, description } => Some((keys, description)),
+                _ => None,
+            })
+            .collect()
+    }
+
+    fn labels_of(command: &str, args: Option<&[String]>) -> Vec<String> {
+        keys_for(&ModeKey::Normal, command, args)
+            .iter()
+            .map(|(c, m)| key_label(c, *m))
+            .collect()
+    }
+
+    /// improvise-s8h7: `i` on an aggregate drills in the TUI, so the row
+    /// that documents it must say so. See `context/test-evidence/clients.md`.
+    #[test]
+    fn the_edit_key_row_says_it_drills_into_an_aggregate() {
+        let edit = labels_of("edit-or-drill", Some(&["editing".to_string()]));
+        let found: Vec<_> = rows().into_iter().filter(|(k, _)| *k == edit).collect();
+        let [(_, description)] = &found[..] else {
+            panic!("expected one help row keyed {edit:?}, got {found:?}");
+        };
+        assert!(
+            description.contains("drill") && description.contains("aggregate"),
+            "{edit:?} drills into an aggregate and the row must say so: {description}"
+        );
+    }
+
+    /// improvise-s8h7: Normal's Enter is `enter-advance`, which only moves.
+    /// See `context/test-evidence/clients.md`.
+    #[test]
+    fn only_the_edit_key_is_captioned_as_editing_the_cell() {
+        let edit = labels_of("edit-or-drill", Some(&["editing".to_string()]));
+        let claims: Vec<_> = rows()
+            .into_iter()
+            .filter(|(_, d)| d.contains("Edit current cell"))
+            .collect();
+        assert!(!claims.is_empty(), "the check needs a row to check");
+        for (keys, description) in claims {
+            assert!(
+                keys.iter().all(|k| edit.contains(k)),
+                "{keys:?} is captioned {description:?} but only {edit:?} edit"
+            );
+        }
+    }
+
     /// Not an assertion: a printout for a human to read once. `cargo test -p
     /// improvise-protocol eyeball -- --nocapture --ignored`.
     #[test]
diff --git a/crates/improvise-protocol/src/resolve.rs b/crates/improvise-protocol/src/resolve.rs
index 0bece83a..be549bf3 100644
--- a/crates/improvise-protocol/src/resolve.rs
+++ b/crates/improvise-protocol/src/resolve.rs
@@ -748,9 +748,10 @@ fn edit_or_drill(state: &ClientState, mode: AppMode) -> Option<Vec<Command>> {
             },
             Command::ChangeMode(mode),
         ]),
-        CellId::Aggregate(_) => Some(vec![Command::SetStatus(
-            "drilling into an aggregate needs the host — not in the browser yet".to_string(),
-        )]),
+        CellId::Aggregate(_) => Some(vec![Command::SetStatus(format!(
+            "an aggregate is edited by drilling in — {}",
+            not_yet("drill")
+        ))]),
         CellId::Derived { target } => Some(vec![Command::SetStatus(format!(
             "{target} is computed by a formula — edit the formula, not the cell"
         ))]),
@@ -2435,28 +2436,38 @@ mod tests {
         );
     }
 
-    /// The advertised key must say what is actually true. Two refusals, two
-    /// subjects — see `context/test-evidence/clients.md`.
+    /// `i` on an aggregate IS drill in the TUI, so both doors name one missing
+    /// feature; only `i` says why. See `context/test-evidence/clients.md`.
     #[test]
-    fn the_drill_key_and_an_aggregate_edit_refuse_for_different_reasons() {
-        let mut state = in_mode(AppMode::Normal);
-        state.grid.extent = GridExtent { rows: 2, cols: 2 };
-        state.window = (2, 2);
-
-        let KeyOutcome::Local(drill) = resolve(&state, ev(KeyCode::Char('>'))) else {
-            panic!("`>` is advertised in the hint line; it must answer");
-        };
-        let [Command::SetStatus(said)] = &drill[..] else {
-            panic!("expected one status, got {drill:?}");
+    fn an_aggregate_edit_names_the_same_missing_drill_as_the_drill_key() {
+        let aggregate = CellId::Aggregate(
+            serde_json::from_str("\"aa4c8e5e9cbd578e0d388f4b2b5a7879\"").unwrap(),
+        );
+        let state = client_on(aggregate);
+        let said = |key| match resolve(&state, ev(key)) {
+            KeyOutcome::Local(commands) => match &commands[..] {
+                [Command::SetStatus(said)] => said.clone(),
+                other => panic!("expected one status, got {other:?}"),
+            },
+            other => panic!("{key:?} is advertised; it must answer, got {other:?}"),
         };
+        let (drill, edit) = (said(KeyCode::Char('>')), said(KeyCode::Char('i')));
         assert!(
-            said.contains("drill") && said.contains("browser"),
-            "the status must name drill and say it is the browser that lacks it: {said}"
+            drill.contains("drill") && drill.contains("browser"),
+            "the status must name drill and say it is the browser that lacks it: {drill}"
         );
         assert!(
-            !said.contains("aggregate"),
-            "a sentence about aggregates is TRUE-SOUNDING about the wrong thing — \
-             `>` is refused whatever the cell is: {said}"
+            !drill.contains("aggregate"),
+            "`>` is refused whatever the cell is, so it must not blame the cell: {drill}"
+        );
+        assert!(
+            edit.contains(&drill),
+            "`i` reached the same missing feature and must name it the same way: \
+             {edit:?} does not contain {drill:?}"
+        );
+        assert!(
+            edit.contains("aggregate"),
+            "and `i` must still say why it drilled rather than edited: {edit}"
         );
     }
 
diff --git a/harness/tests/drill.spec.js b/harness/tests/drill.spec.js
index d38124c3..c1c12039 100644
--- a/harness/tests/drill.spec.js
+++ b/harness/tests/drill.spec.js
@@ -36,12 +36,14 @@ async function anAggregateGrid(page) {
 test.describe("drill is refused in the browser, not broken", () => {
   // The honest half: `i`/`a` on an aggregate declines OUT LOUD, because
   // `edit_or_drill` answers the `CellId::Aggregate` arm with a status.
-  test("editing an aggregate says drill needs the host", async ({ page }) => {
+  test("editing an aggregate says it is edited by drilling, and drill is missing", async ({
+    page,
+  }) => {
     await anAggregateGrid(page);
 
     await page.keyboard.press("i");
     await expect(page.locator("#toast")).toContainText(
-      "drilling into an aggregate needs the host",
+      "an aggregate is edited by drilling in — drill is not available in the browser yet",
     );
     // And it really is a refusal: no editor opened, no mode change.
     await expect(page.locator("#mode")).toHaveText("NORMAL");
@@ -63,16 +65,15 @@ test.describe("drill is refused in the browser, not broken", () => {
     );
     await expect(page.locator("#mode")).toHaveText("NORMAL");
 
-    // The two refusals have two SUBJECTS, and conflating them would be a
-    // true-sounding sentence about the wrong thing — worse than silence,
-    // because it stops the reader looking. `>` must not talk about aggregates.
+    // `>` is refused whatever the cell is, so it must not blame the cell.
     await expect(page.locator("#toast")).not.toContainText("aggregate");
 
-    // And `i` still gives the OTHER refusal, which is what proves the two are
-    // distinct rather than one message reached by two keys.
+    // `i` reaches the SAME missing feature (in the TUI it drills), so it names
+    // it the same way and adds only why — improvise-s8h7, clients.md.
     await page.keyboard.press("i");
+    await expect(page.locator("#toast")).toContainText("an aggregate is edited by drilling in");
     await expect(page.locator("#toast")).toContainText(
-      "drilling into an aggregate needs the host",
+      "drill is not available in the browser yet",
     );
   });
 });