fix: handle kitty keypad input

refs #570

docs/next/CHANGELOG.md

@@ -33,6 +33,7 @@
 - Claude Code session restore now accepts real `/clear`, `/resume`, and compacted session identity changes while still ignoring nested `claude -p` startup sessions that inherit the pane environment. (#620)
 - Auto-named tab labels now stay compact after closing, moving, or creating tabs while public tab ids remain stable.
 - F1-F4 key presses sent as `ESC[11~` through `ESC[14~` now reach pane apps instead of being dropped. (#574)
+- Numeric keypad keys sent through the kitty keyboard protocol now enter their digits and operators instead of being dropped. (#570)
 
 ## [0.6.10] - 2026-06-11
 

src/input/parse.rs

@@ -253,6 +253,23 @@ fn kitty_codepoint_to_keycode(codepoint: u32) -> Option<KeyCode> {
         57362 => Some(KeyCode::Pause),
         57363 => Some(KeyCode::Menu),
         57376..=57398 => Some(KeyCode::F((codepoint - 57376 + 13) as u8)),
+        57399 => Some(KeyCode::Char('0')),
+        57400 => Some(KeyCode::Char('1')),
+        57401 => Some(KeyCode::Char('2')),
+        57402 => Some(KeyCode::Char('3')),
+        57403 => Some(KeyCode::Char('4')),
+        57404 => Some(KeyCode::Char('5')),
+        57405 => Some(KeyCode::Char('6')),
+        57406 => Some(KeyCode::Char('7')),
+        57407 => Some(KeyCode::Char('8')),
+        57408 => Some(KeyCode::Char('9')),
+        57409 => Some(KeyCode::Char('.')),
+        57410 => Some(KeyCode::Char('/')),
+        57411 => Some(KeyCode::Char('*')),
+        57412 => Some(KeyCode::Char('-')),
+        57413 => Some(KeyCode::Char('+')),
+        57415 => Some(KeyCode::Char('=')),
+        57416 => Some(KeyCode::Char(',')),
         57417 => Some(KeyCode::Left),
         57418 => Some(KeyCode::Right),
         57419 => Some(KeyCode::Up),
@@ -731,6 +748,24 @@ mod tests {
     #[test]
     fn kitty_functional_key_matrix_is_covered() {
         let cases = [
+            ("\x1b[57399;1u", KeyCode::Char('0')),
+            ("\x1b[57400;1u", KeyCode::Char('1')),
+            ("\x1b[57401;1u", KeyCode::Char('2')),
+            ("\x1b[57402;1u", KeyCode::Char('3')),
+            ("\x1b[57403;1u", KeyCode::Char('4')),
+            ("\x1b[57404;1u", KeyCode::Char('5')),
+            ("\x1b[57405;1u", KeyCode::Char('6')),
+            ("\x1b[57406;1u", KeyCode::Char('7')),
+            ("\x1b[57407;1u", KeyCode::Char('8')),
+            ("\x1b[57408;1u", KeyCode::Char('9')),
+            ("\x1b[57409;1u", KeyCode::Char('.')),
+            ("\x1b[57410;1u", KeyCode::Char('/')),
+            ("\x1b[57411;1u", KeyCode::Char('*')),
+            ("\x1b[57412;1u", KeyCode::Char('-')),
+            ("\x1b[57413;1u", KeyCode::Char('+')),
+            ("\x1b[57414;1u", KeyCode::Enter),
+            ("\x1b[57415;1u", KeyCode::Char('=')),
+            ("\x1b[57416;1u", KeyCode::Char(',')),
             ("\x1b[57417;1u", KeyCode::Left),
             ("\x1b[57418;1u", KeyCode::Right),
             ("\x1b[57419;1u", KeyCode::Up),
@@ -755,6 +790,11 @@ mod tests {
         }
     }
 
+    #[test]
+    fn unknown_kitty_functional_key_remains_unsupported() {
+        assert!(parse_terminal_key_sequence("\x1b[57364;1u").is_none());
+    }
+
     fn assert_fixture_corpus_parses(corpus: &str) {
         for line in corpus.lines() {
             let line = line.trim();

tests/fixtures/keyboard_protocol_corpus.tsv

@@ -17,5 +17,23 @@ kitty_alt_backspace	1b5b3132373b3375	backspace	alt	press
 kitty_shift_letter	1b5b3130383a37363b323a3175	char:l	shift	press	76
 kitty_shift_symbol	1b5b34393a33333b323a3175	char:1	shift	press	33
 kitty_release_letter	1b5b3130383a37363b323a3375	char:l	shift	release	76
+kitty_keypad_0	1b5b35373339393b3175	char:0	-	press
+kitty_keypad_1	1b5b35373430303b3175	char:1	-	press
+kitty_keypad_2	1b5b35373430313b3175	char:2	-	press
+kitty_keypad_3	1b5b35373430323b3175	char:3	-	press
+kitty_keypad_4	1b5b35373430333b3175	char:4	-	press
+kitty_keypad_5	1b5b35373430343b3175	char:5	-	press
+kitty_keypad_6	1b5b35373430353b3175	char:6	-	press
+kitty_keypad_7	1b5b35373430363b3175	char:7	-	press
+kitty_keypad_8	1b5b35373430373b3175	char:8	-	press
+kitty_keypad_9	1b5b35373430383b3175	char:9	-	press
+kitty_keypad_decimal	1b5b35373430393b3175	char:.	-	press
+kitty_keypad_divide	1b5b35373431303b3175	char:/	-	press
+kitty_keypad_multiply	1b5b35373431313b3175	char:*	-	press
+kitty_keypad_subtract	1b5b35373431323b3175	char:-	-	press
+kitty_keypad_add	1b5b35373431333b3175	char:+	-	press
+kitty_keypad_enter	1b5b35373431343b3175	enter	-	press
+kitty_keypad_equal	1b5b35373431353b3175	char:=	-	press
+kitty_keypad_separator	1b5b35373431363b3175	char:,	-	press
 kitty_functional_up	1b5b35373431393b3175	up	-	press	
 kitty_functional_home	1b5b35373432333b3175	home	-	press