diff --git a/apps/effectcraft-cli/tests/it/qa_template.rs b/apps/effectcraft-cli/tests/it/qa_template.rs
index 8cb533fda..ffbdb94e9 100644
--- a/apps/effectcraft-cli/tests/it/qa_template.rs
+++ b/apps/effectcraft-cli/tests/it/qa_template.rs
@@ -152,6 +152,13 @@ fn essential_graphics_template_via_script_and_commands() {
     assert_eq!(image::open(&frames[0]).unwrap().to_rgba8(), edit);
     assert_eq!(std::fs::read(dir.join("lt.ectemplate")).unwrap(), original_template);
 
+    invalid_template_values_fail_cleanly(&dir);
+    template_usage_errors(&dir);
+    rational_template_keeps_exact_rate(&dir, &original_template);
+    let _ = std::fs::remove_dir_all(&dir);
+}
+
+fn invalid_template_values_fail_cleanly(dir: &PathBuf) {
     // Invalid values fail before the queue creates an output directory, or frame rendering
     // overwrites an existing output. A JSON object and existing control names are required.
     for (name, values, expected) in [
@@ -164,25 +171,27 @@ fn essential_graphics_template_via_script_and_commands() {
         std::fs::write(dir.join(&values_file), values).unwrap();
         let output_dir = dir.join(format!("failed-{name}"));
         let out = output_dir.join("frame_[#####].png");
-        let (code, error) = cli(&dir, &["render", "--template", "lt.ectemplate", "--values", &values_file, "--out", out.to_str().unwrap()]);
+        let (code, error) = cli(dir, &["render", "--template", "lt.ectemplate", "--values", &values_file, "--out", out.to_str().unwrap()]);
         assert_eq!(code, 1, "{name}: {error}");
         assert!(error["error"].as_str().unwrap().contains(expected), "{name}: {error}");
         assert!(!output_dir.exists(), "{name}: invalid input created render output");
         std::fs::write(dir.join("untouched.png"), b"existing output").unwrap();
-        let (code, error) = cli(&dir, &["render-frame", "--template", "lt.ectemplate", "--values", &values_file, "--out", "untouched.png"]);
+        let (code, error) = cli(dir, &["render-frame", "--template", "lt.ectemplate", "--values", &values_file, "--out", "untouched.png"]);
         assert_eq!(code, 1, "{name}: {error}");
         assert_eq!(std::fs::read(dir.join("untouched.png")).unwrap(), b"existing output");
     }
-    let (code, error) = cli(&dir, &["render-frame", "--template", "lt.ectemplate", "--values", "missing-values.json", "--out", "missing.png"]);
+    let (code, error) = cli(dir, &["render-frame", "--template", "lt.ectemplate", "--values", "missing-values.json", "--out", "missing.png"]);
     assert_eq!(code, 1, "{error}");
     assert!(error["error"].as_str().unwrap().contains("cannot read values"), "{error}");
     assert!(!dir.join("missing.png").exists());
     std::fs::write(dir.join("large-values.json"), vec![b' '; 1024 * 1024 + 1]).unwrap();
-    let (code, error) = cli(&dir, &["render-frame", "--template", "lt.ectemplate", "--values", "large-values.json", "--out", "large.png"]);
+    let (code, error) = cli(dir, &["render-frame", "--template", "lt.ectemplate", "--values", "large-values.json", "--out", "large.png"]);
     assert_eq!(code, 1, "{error}");
     assert!(error["error"].as_str().unwrap().contains("exceeds 1 MiB"), "{error}");
     assert!(!dir.join("large.png").exists());
+}
 
+fn template_usage_errors(dir: &PathBuf) {
     for args in [
         vec!["render-frame", "--values", "values.json"],
         vec!["info", "--template", "lt.ectemplate"],
@@ -191,10 +200,12 @@ fn essential_graphics_template_via_script_and_commands() {
         vec!["render", "--template", "lt.ectemplate", "--queue"],
         vec!["render-frame", "--template", "lt.ectemplate", "--bridge", "1"],
     ] {
-        let output = Command::new(crate::binary()).current_dir(&dir).args(&args).output().unwrap();
+        let output = Command::new(crate::binary()).current_dir(dir).args(&args).output().unwrap();
         assert_eq!(output.status.code(), Some(2), "{args:?}: {}", String::from_utf8_lossy(&output.stderr));
     }
+}
 
+fn rational_template_keeps_exact_rate(dir: &PathBuf, original_template: &[u8]) {
     // File-loaded templates can use exact rational rates that comp.new's float parser rounds.
     // Preserve that rate, Tick duration, work area, background and locked source layers.
     let mut project = effectcraft_engine::project::Project::from_json(&std::fs::read_to_string(dir.join("t.ecproj")).unwrap()).unwrap();
@@ -207,13 +218,13 @@ fn essential_graphics_template_via_script_and_commands() {
     comp.background = [0.08, 0.16, 0.24];
     comp.layers.first_mut().unwrap().switches.locked = true;
     std::fs::write(dir.join("rational.ecproj"), project.to_json()).unwrap();
-    ok(&dir, &["exec", "essential.exportTemplate", r#"{"comp":"Lower Third","path":"rational.ectemplate"}"#, "rational.ecproj"]);
+    ok(dir, &["exec", "essential.exportTemplate", r#"{"comp":"Lower Third","path":"rational.ectemplate"}"#, "rational.ecproj"]);
     let rational_template = std::fs::read(dir.join("rational.ectemplate")).unwrap();
-    let rational = ok(&dir, &["render-frame", "--template", "rational.ectemplate", "--frame", "5", "--out", "rational.png"]);
+    let rational = ok(dir, &["render-frame", "--template", "rational.ectemplate", "--frame", "5", "--out", "rational.png"]);
     assert!((rational["time"].as_f64().unwrap() - 5.0 / rate.as_f64()).abs() < 1e-9, "{rational}");
     assert_eq!((rational["width"].as_u64().unwrap(), rational["height"].as_u64().unwrap()), (320, 90));
     let output = dir.join("rational-work-area/frame_[#####].png");
-    ok(&dir, &["render", "--template", "rational.ectemplate", "--work-area", "--out", output.to_str().unwrap(), "--format", "png", "--resolution", "0.05"]);
+    ok(dir, &["render", "--template", "rational.ectemplate", "--work-area", "--out", output.to_str().unwrap(), "--format", "png", "--resolution", "0.05"]);
     let count = std::fs::read_dir(dir.join("rational-work-area"))
         .unwrap()
         .filter_map(Result::ok)
@@ -222,8 +233,8 @@ fn essential_graphics_template_via_script_and_commands() {
     assert_eq!(count, 4, "the template's exact work area contains frames 3 through 6");
     assert_eq!(std::fs::read(dir.join("rational.ectemplate")).unwrap(), rational_template);
     assert_eq!(std::fs::read(dir.join("lt.ectemplate")).unwrap(), original_template);
-    let _ = std::fs::remove_dir_all(&dir);
 }
+
 fn template_output_alias_fixture(case: &str) -> PathBuf {
     let dir = std::env::temp_dir().join(format!("ec-qa-template-output-{case}-{}", std::process::id()));
     let _ = std::fs::remove_dir_all(&dir);
diff --git a/apps/effectcraft-web/src/frames.rs b/apps/effectcraft-web/src/frames.rs
index c7f350526..69089e308 100644
--- a/apps/effectcraft-web/src/frames.rs
+++ b/apps/effectcraft-web/src/frames.rs
@@ -311,10 +311,11 @@ pub fn stats() -> Value {
     })
 }
 
+type PendingFrameCheck = (js_sys::Function, js_sys::Function, (u32, u32, Vec<u8>), f64);
+
 thread_local! {
     /// `workerFrameCheck` promises waiting for their frame: id → (resolve, reject, local frame).
-    #[allow(clippy::type_complexity)]
-    static CHECKS: RefCell<std::collections::HashMap<u64, (js_sys::Function, js_sys::Function, (u32, u32, Vec<u8>), f64)>> = RefCell::new(Default::default());
+    static CHECKS: RefCell<std::collections::HashMap<u64, PendingFrameCheck>> = RefCell::new(Default::default());
 }
 
 /// `effectcraft.workerFrameCheck({time?, scale?, backend?})`: render the active comp's frame in
diff --git a/apps/effectcraft/src/main.rs b/apps/effectcraft/src/main.rs
index 6df015290..17bbb7e1b 100644
--- a/apps/effectcraft/src/main.rs
+++ b/apps/effectcraft/src/main.rs
@@ -9,8 +9,8 @@
 //!
 //! `--control <port>` (or `EFFECTCRAFT_CONTROL_PORT`) starts a localhost JSON-lines control server;
 //! see `effectcraft_ui_egui::control` for the methods.
-#![cfg_attr(all(target_os = "windows", not(debug_assertions)), windows_subsystem = "windows")]
 #![deny(clippy::unwrap_used, clippy::expect_used, clippy::panic, clippy::unimplemented, clippy::todo, clippy::unreachable)]
+#![cfg_attr(all(target_os = "windows", not(debug_assertions)), windows_subsystem = "windows")]
 
 // Built everywhere so its tests run on every platform; only Linux AppImages use it.
 mod appearance;
diff --git a/apps/effectcraft/tests/args.rs b/apps/effectcraft/tests/args.rs
index 41281eb23..62c591b45 100644
--- a/apps/effectcraft/tests/args.rs
+++ b/apps/effectcraft/tests/args.rs
@@ -1,6 +1,4 @@
 //! The desktop binary rejects a bad command line before it starts anything (#997).
-// Integration tests: unwrapping and panicking on failure is fine here.
-#![allow(clippy::unwrap_used, clippy::expect_used, clippy::panic)]
 
 use std::path::PathBuf;
 use std::process::{Command, Stdio};