diff --git a/exercises/practice/allergies/.meta/tests.toml b/exercises/practice/allergies/.meta/tests.toml
index 405bd3f6..799ab856 100644
--- a/exercises/practice/allergies/.meta/tests.toml
+++ b/exercises/practice/allergies/.meta/tests.toml
@@ -155,3 +155,6 @@ description = "list when: -> everything"
 
 [12ce86de-b347-42a0-ab7c-2e0570f0c65b]
 description = "list when: -> no allergen score parts"
+
+[93c2df3e-4f55-4fed-8116-7513092819cd]
+description = "list when: -> no allergen score parts without highest valid score"
diff --git a/exercises/practice/allergies/allergies_test.c b/exercises/practice/allergies/allergies_test.c
index f2fa7369..8afc8caf 100644
--- a/exercises/practice/allergies/allergies_test.c
+++ b/exercises/practice/allergies/allergies_test.c
@@ -317,6 +317,16 @@ void test_no_allergen_score_parts(void) {
     TEST_ASSERT_EQUAL_INT_ARRAY(expected, item_list.items, item_list.size);
 }
 
+static void test_no_allergen_score_parts_without_highest_valid_score(void) {
+    TEST_IGNORE();
+    int expected[] = {EGGS};
+    struct item_list item_list;
+
+    list(257, &item_list);
+    TEST_ASSERT_EQUAL_INT(ARRAY_SIZE(expected), item_list.size);
+    TEST_ASSERT_EQUAL_INT_ARRAY(expected, item_list.items, item_list.size);
+}
+
 int main(void) {
     UNITY_BEGIN();
     RUN_TEST(test_eggs_not_allergic_to_anything);
@@ -368,5 +378,6 @@ int main(void) {
     RUN_TEST(test_lots_of_stuff);
     RUN_TEST(test_everything);
     RUN_TEST(test_no_allergen_score_parts);
+    RUN_TEST(test_no_allergen_score_parts_without_highest_valid_score);
     return UNITY_END();
 }
diff --git a/exercises/practice/bob/.meta/tests.toml b/exercises/practice/bob/.meta/tests.toml
index ea47d6bb..5299e289 100644
--- a/exercises/practice/bob/.meta/tests.toml
+++ b/exercises/practice/bob/.meta/tests.toml
@@ -71,6 +71,7 @@ description = "alternate silence"
 
 [66953780-165b-4e7e-8ce3-4bcb80b6385a]
 description = "multiple line question"
+include = false
 
 [5371ef75-d9ea-4103-bcfa-2da973ddec1b]
 description = "starting with whitespace"
@@ -83,3 +84,7 @@ description = "other whitespace"
 
 [12983553-8601-46a8-92fa-fcaa3bc4a2a0]
 description = "non-question ending with whitespace"
+
+[2c7278ac-f955-4eb4-bf8f-e33eb4116a15]
+description = "multiple line question"
+reimplements = "66953780-165b-4e7e-8ce3-4bcb80b6385a"
diff --git a/exercises/practice/bob/bob_test.c b/exercises/practice/bob/bob_test.c
index 6b04b0ae..603cac31 100644
--- a/exercises/practice/bob/bob_test.c
+++ b/exercises/practice/bob/bob_test.c
@@ -129,12 +129,6 @@ void test_alternate_silence(void) {
     TEST_ASSERT_EQUAL_STRING("Fine. Be that way!", response(str));
 }
 
-void test_multiple_line_question(void) {
-    TEST_IGNORE();
-    char str[] = "\nDoes this cryogenic chamber make me look fat?\nNo.";
-    TEST_ASSERT_EQUAL_STRING("Whatever.", response(str));
-}
-
 void test_starting_with_whitespace(void) {
     TEST_IGNORE();
     char str[] = "         hmmmmmmm...";
@@ -159,6 +153,12 @@ void test_nonquestion_ending_with_whitespace(void) {
     TEST_ASSERT_EQUAL_STRING("Whatever.", response(str));
 }
 
+void test_multiple_line_question(void) {
+    TEST_IGNORE();
+    char str[] = "\nDoes this cryogenic chamber make\n me look fat?";
+    TEST_ASSERT_EQUAL_STRING("Sure.", response(str));
+}
+
 int main(void) {
     UNITY_BEGIN();
     RUN_TEST(test_stating_something);
@@ -181,10 +181,10 @@ int main(void) {
     RUN_TEST(test_silence);
     RUN_TEST(test_prolonged_silence);
     RUN_TEST(test_alternate_silence);
-    RUN_TEST(test_multiple_line_question);
     RUN_TEST(test_starting_with_whitespace);
     RUN_TEST(test_ending_with_whitespace);
     RUN_TEST(test_other_whitespace);
     RUN_TEST(test_nonquestion_ending_with_whitespace);
+    RUN_TEST(test_multiple_line_question);
     return UNITY_END();
 }
diff --git a/exercises/practice/reverse-string/.meta/tests.toml b/exercises/practice/reverse-string/.meta/tests.toml
index 0b04c4cd..52fda995 100644
--- a/exercises/practice/reverse-string/.meta/tests.toml
+++ b/exercises/practice/reverse-string/.meta/tests.toml
@@ -26,3 +26,15 @@ description = "a palindrome"
 
 [b9e7dec1-c6df-40bd-9fa3-cd7ded010c4c]
 description = "an even-sized word"
+
+[1bed0f8a-13b0-4bd3-9d59-3d0593326fa2]
+description = "wide characters"
+include = false
+
+[93d7e1b8-f60f-4f3c-9559-4056e10d2ead]
+description = "grapheme cluster with pre-combined form"
+include = false
+
+[1028b2c1-6763-4459-8540-2da47ca512d9]
+description = "grapheme clusters"
+include = false
diff --git a/exercises/practice/roman-numerals/.meta/tests.toml b/exercises/practice/roman-numerals/.meta/tests.toml
index 57c6c4be..709011b5 100644
--- a/exercises/practice/roman-numerals/.meta/tests.toml
+++ b/exercises/practice/roman-numerals/.meta/tests.toml
@@ -84,5 +84,8 @@ description = "3000 is MMM"
 [3bc4b41c-c2e6-49d9-9142-420691504336]
 description = "3001 is MMMI"
 
+[2f89cad7-73f6-4d1b-857b-0ef531f68b7e]
+description = "3888 is MMMDCCCLXXXVIII"
+
 [4e18e96b-5fbb-43df-a91b-9cb511fe0856]
 description = "3999 is MMMCMXCIX"
diff --git a/exercises/practice/roman-numerals/roman_numerals_test.c b/exercises/practice/roman-numerals/roman_numerals_test.c
index 614f1583..9a477856 100644
--- a/exercises/practice/roman-numerals/roman_numerals_test.c
+++ b/exercises/practice/roman-numerals/roman_numerals_test.c
@@ -211,6 +211,14 @@ void test_3001_is_mmmi(void) {
     TEST_ASSERT_EQUAL_STRING("MMMI", buffer);
 }
 
+void test_3888_is_mmmdccclxxxviii(void) {
+    TEST_IGNORE();
+    char buffer[BUFFER_SIZE];
+
+    roman(3888, buffer);
+    TEST_ASSERT_EQUAL_STRING("MMMDCCCLXXXVIII", buffer);
+}
+
 void test_3999_is_mmmcmxcix(void) {
     TEST_IGNORE();
     char buffer[BUFFER_SIZE];
@@ -246,6 +254,7 @@ int main(void) {
     RUN_TEST(test_1666_is_mdclxvi);
     RUN_TEST(test_3000_is_mmm);
     RUN_TEST(test_3001_is_mmmi);
+    RUN_TEST(test_3888_is_mmmdccclxxxviii);
     RUN_TEST(test_3999_is_mmmcmxcix);
     return UNITY_END();
 }
diff --git a/exercises/practice/space-age/.meta/tests.toml b/exercises/practice/space-age/.meta/tests.toml
index 2c0555e5..a62017e4 100644
--- a/exercises/practice/space-age/.meta/tests.toml
+++ b/exercises/practice/space-age/.meta/tests.toml
@@ -32,3 +32,7 @@ description = "age on Uranus"
 
 [80096d30-a0d4-4449-903e-a381178355d8]
 description = "age on Neptune"
+
+[57b96e2a-1178-40b7-b34d-f3c9c34e4bf4]
+description = "invalid planet causes error"
+include = false
diff --git a/exercises/practice/triangle/.meta/tests.toml b/exercises/practice/triangle/.meta/tests.toml
index 59107059..7db09164 100644
--- a/exercises/practice/triangle/.meta/tests.toml
+++ b/exercises/practice/triangle/.meta/tests.toml
@@ -1,60 +1,73 @@
-# This is an auto-generated file. Regular comments will be removed when this
-# file is regenerated. Regenerating will not touch any manually added keys,
-# so comments can be added in a "comment" key.
+# This is an auto-generated file.
+#
+# Regenerating this file via `configlet sync` will:
+# - Recreate every `description` key/value pair
+# - Recreate every `reimplements` key/value pair, where they exist in problem-specifications
+# - Remove any `include = true` key/value pair (an omitted `include` key implies inclusion)
+# - Preserve any other key/value pair
+#
+# As user-added comments (using the # character) will be removed when this file
+# is regenerated, comments can be added via a `comment` key.
 
 [8b2c43ac-7257-43f9-b552-7631a91988af]
-description = "all sides are equal"
+description = "equilateral triangle -> all sides are equal"
 
 [33eb6f87-0498-4ccf-9573-7f8c3ce92b7b]
-description = "any side is unequal"
+description = "equilateral triangle -> any side is unequal"
 
 [c6585b7d-a8c0-4ad8-8a34-e21d36f7ad87]
-description = "no sides are equal"
+description = "equilateral triangle -> no sides are equal"
 
 [16e8ceb0-eadb-46d1-b892-c50327479251]
-description = "all zero sides is not a triangle"
+description = "equilateral triangle -> all zero sides is not a triangle"
 
 [3022f537-b8e5-4cc1-8f12-fd775827a00c]
-description = "sides may be floats"
+description = "equilateral triangle -> sides may be floats"
 
 [cbc612dc-d75a-4c1c-87fc-e2d5edd70b71]
-description = "last two sides are equal"
+description = "isosceles triangle -> last two sides are equal"
 
 [e388ce93-f25e-4daf-b977-4b7ede992217]
-description = "first two sides are equal"
+description = "isosceles triangle -> first two sides are equal"
 
 [d2080b79-4523-4c3f-9d42-2da6e81ab30f]
-description = "first and last sides are equal"
+description = "isosceles triangle -> first and last sides are equal"
 
 [8d71e185-2bd7-4841-b7e1-71689a5491d8]
-description = "equilateral triangles are also isosceles"
+description = "isosceles triangle -> equilateral triangles are also isosceles"
 
 [840ed5f8-366f-43c5-ac69-8f05e6f10bbb]
-description = "no sides are equal"
+description = "isosceles triangle -> no sides are equal"
 
 [2eba0cfb-6c65-4c40-8146-30b608905eae]
-description = "first triangle inequality violation"
+description = "isosceles triangle -> first triangle inequality violation"
 
 [278469cb-ac6b-41f0-81d4-66d9b828f8ac]
-description = "second triangle inequality violation"
+description = "isosceles triangle -> second triangle inequality violation"
 
 [90efb0c7-72bb-4514-b320-3a3892e278ff]
-description = "third triangle inequality violation"
+description = "isosceles triangle -> third triangle inequality violation"
 
 [adb4ee20-532f-43dc-8d31-e9271b7ef2bc]
-description = "sides may be floats"
+description = "isosceles triangle -> sides may be floats"
 
 [e8b5f09c-ec2e-47c1-abec-f35095733afb]
-description = "no sides are equal"
+description = "scalene triangle -> no sides are equal"
 
 [2510001f-b44d-4d18-9872-2303e7977dc1]
-description = "all sides are equal"
+description = "scalene triangle -> all sides are equal"
 
 [c6e15a92-90d9-4fb3-90a2-eef64f8d3e1e]
-description = "two sides are equal"
+description = "scalene triangle -> first and second sides are equal"
+
+[3da23a91-a166-419a-9abf-baf4868fd985]
+description = "scalene triangle -> first and third sides are equal"
+
+[b6a75d98-1fef-4c42-8e9a-9db854ba0a4d]
+description = "scalene triangle -> second and third sides are equal"
 
 [70ad5154-0033-48b7-af2c-b8d739cd9fdc]
-description = "may not violate triangle inequality"
+description = "scalene triangle -> may not violate triangle inequality"
 
 [26d9d59d-f8f1-40d3-ad58-ae4d54123d7d]
-description = "sides may be floats"
+description = "scalene triangle -> sides may be floats"
diff --git a/exercises/practice/triangle/triangle_test.c b/exercises/practice/triangle/triangle_test.c
index b9a86f48..c142e6ef 100644
--- a/exercises/practice/triangle/triangle_test.c
+++ b/exercises/practice/triangle/triangle_test.c
@@ -113,12 +113,24 @@ void test_scalene_triangle_all_sides_are_equal(void) {
     TEST_ASSERT_EQUAL_INT(0, is_scalene(sides));
 }
 
-void test_scalene_triangle_two_sides_are_equal(void) {
+void test_scalene_triangle_first_and_second_sides_are_equal(void) {
     TEST_IGNORE();
     triangle_t sides = { 4, 4, 3 } ;
     TEST_ASSERT_EQUAL_INT(0, is_scalene(sides));
 }
 
+void test_scalene_triangle_first_and_third_sides_are_equal(void) {
+    TEST_IGNORE();
+    triangle_t sides = { 3, 4, 3 } ;
+    TEST_ASSERT_EQUAL_INT(0, is_scalene(sides));
+}
+
+void test_scalene_triangle_second_and_third_sides_are_equal(void) {
+    TEST_IGNORE();
+    triangle_t sides = { 4, 3, 3 } ;
+    TEST_ASSERT_EQUAL_INT(0, is_scalene(sides));
+}
+
 void test_scalene_triangle_may_not_violate_triangle_inequality(void) {
     TEST_IGNORE();
     triangle_t sides = { 7, 3, 2 } ;
@@ -149,7 +161,9 @@ int main(void) {
     RUN_TEST(test_isosceles_triangle_sides_may_be_floats);
     RUN_TEST(test_scalene_triangle_no_sides_are_equal);
     RUN_TEST(test_scalene_triangle_all_sides_are_equal);
-    RUN_TEST(test_scalene_triangle_two_sides_are_equal);
+    RUN_TEST(test_scalene_triangle_first_and_second_sides_are_equal);
+    RUN_TEST(test_scalene_triangle_first_and_third_sides_are_equal);
+    RUN_TEST(test_scalene_triangle_second_and_third_sides_are_equal);
     RUN_TEST(test_scalene_triangle_may_not_violate_triangle_inequality);
     RUN_TEST(test_scalene_triangle_sides_may_be_floats);
     return UNITY_END();