diff --git a/crates/mergify-cli/tests/skill_references.rs b/crates/mergify-cli/tests/skill_references.rs
index e0a8a2f7..832c9a33 100644
--- a/crates/mergify-cli/tests/skill_references.rs
+++ b/crates/mergify-cli/tests/skill_references.rs
@@ -71,11 +71,6 @@ fn native_commands_for_group(group: &str) -> BTreeSet<String> {
         .collect()
 }
 
-#[test]
-fn skill_content_is_readable() {
-    assert!(!skill_content().is_empty(), "SKILL.md must not be empty");
-}
-
 #[test]
 fn skill_has_valid_frontmatter() {
     let content = skill_content();
diff --git a/crates/mergify-freeze/src/common.rs b/crates/mergify-freeze/src/common.rs
index 77e1eb65..3a006c3a 100644
--- a/crates/mergify-freeze/src/common.rs
+++ b/crates/mergify-freeze/src/common.rs
@@ -228,15 +228,4 @@ mod tests {
             "2026-01-01T10:00:00 (Europe/Paris)",
         );
     }
-
-    #[test]
-    fn detect_local_timezone_returns_a_value() {
-        // We can't assert a specific timezone (varies by environment),
-        // but we can assert that detection doesn't fail outright in
-        // a normal dev / CI environment. If this fires in a sandbox
-        // that masks `TZ`, the `iana-time-zone` crate falls back to
-        // `/etc/localtime` on Unix — both routes work in CI.
-        let tz = detect_local_timezone().expect("local timezone detectable");
-        assert!(!tz.is_empty());
-    }
 }
diff --git a/crates/mergify-stack/src/revision_note.rs b/crates/mergify-stack/src/revision_note.rs
index 913b9f8b..87ae526a 100644
--- a/crates/mergify-stack/src/revision_note.rs
+++ b/crates/mergify-stack/src/revision_note.rs
@@ -322,21 +322,6 @@ mod tests {
         );
     }
 
-    #[test]
-    fn recover_pending_rejects_plain_reason() {
-        assert!(
-            recover_pending(
-                "fixed a typo in the docs",
-                GH,
-                "o",
-                "r",
-                "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
-                "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb",
-            )
-            .is_none()
-        );
-    }
-
     // --- git IO ---
 
     fn init_repo() -> TempDir {