feat(symfony-console): port Symfony Console and make the workspace compile

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

44 files changed, 820 insertions, 594 deletions

diff --git a/crates/shirabe/src/advisory/auditor.rs b/crates/shirabe/src/advisory/auditor.rs
index 2b71237..c12e131 100644
--- a/crates/shirabe/src/advisory/auditor.rs
+++ b/crates/shirabe/src/advisory/auditor.rs
@@ -417,12 +417,12 @@ impl Auditor {
                     }
                     .into());
                 }
-                self.output_advisories_table(io_as_console.unwrap(), advisories);
+                self.output_advisories_table(io_as_console.unwrap(), advisories)?;
 
                 Ok(())
             }
             Self::FORMAT_PLAIN => {
-                self.output_advisories_plain(io, advisories);
+                self.output_advisories_plain(io, advisories)?;
 
                 Ok(())
             }
@@ -440,7 +440,7 @@ impl Auditor {
         &self,
         io: &ConsoleIO,
         advisories: &IndexMap<String, Vec<AnySecurityAdvisory>>,
-    ) {
+    ) -> Result<()> {
         for package_advisories in advisories.values() {
             for advisory in package_advisories {
                 let mut headers: Vec<String> = vec![
@@ -475,22 +475,26 @@ impl Auditor {
                             .unwrap_or_else(|| "None specified".to_string()),
                     );
                 }
-                io.get_table()
+                let mut table = io.get_table();
+                table
                     .set_horizontal(true)
-                    .set_headers(headers.into_iter().map(|h| h.into()).collect())
-                    .add_row(ConsoleIO::sanitize(
-                        PhpMixed::List(
-                            row.into_iter()
-                                .map(|s| Box::new(PhpMixed::String(s)))
-                                .collect(),
-                        ),
-                        false,
-                    ))
+                    .set_headers(headers.into_iter().map(|h| h.into()).collect());
+                table.add_row(ConsoleIO::sanitize(
+                    PhpMixed::List(
+                        row.into_iter()
+                            .map(|s| Box::new(PhpMixed::String(s)))
+                            .collect(),
+                    ),
+                    false,
+                ))??;
+                table
                     .set_column_width(1, 80)
                     .set_column_max_width(1, 80)
                     .render();
             }
         }
+
+        Ok(())
     }
 
     /// @param array<string, array<SecurityAdvisory>> $advisories
@@ -498,7 +502,7 @@ impl Auditor {
         &self,
         io: &mut dyn IOInterface,
         advisories: &IndexMap<String, Vec<AnySecurityAdvisory>>,
-    ) {
+    ) -> Result<()> {
         let mut error: Vec<String> = vec![];
         let mut first_advisory = true;
         for package_advisories in advisories.values() {
@@ -513,11 +517,11 @@ impl Auditor {
                 error.push(format!("Severity: {}", self.get_severity(sa)));
                 error.push(format!("Advisory ID: {}", self.get_advisory_id(sa)));
                 error.push(format!("CVE: {}", self.get_cve(sa)));
-                error.push(format!("Title: {}", OutputFormatter::escape(&sa.title)));
+                error.push(format!("Title: {}", OutputFormatter::escape(&sa.title)?));
                 error.push(format!("URL: {}", self.get_url(sa)));
                 error.push(format!(
                     "Affected versions: {}",
-                    OutputFormatter::escape(&sa.affected_versions().get_pretty_string())
+                    OutputFormatter::escape(&sa.affected_versions().get_pretty_string())?
                 ));
                 error.push(format!("Reported at: {}", sa.reported_at.format(DATE_ATOM)));
                 if let Some(ignored) = advisory.as_ignored() {
@@ -535,6 +539,8 @@ impl Auditor {
         for line in &error {
             io.write_error(line);
         }
+
+        Ok(())
     }
 
     /// @param array<CompletePackageInterface> $packages
@@ -625,7 +631,8 @@ impl Auditor {
         if package_url.is_some() {
             format!(
                 "<href={}>{}</>",
-                OutputFormatter::escape(&package_url.unwrap()),
+                OutputFormatter::escape(&package_url.unwrap())
+                    .expect("OutputFormatter::escape does not fail"),
                 package.get_pretty_name()
             )
         } else {
@@ -673,8 +680,8 @@ impl Auditor {
         let link = advisory.link.as_ref().unwrap();
         format!(
             "<href={}>{}</>",
-            OutputFormatter::escape(link),
-            OutputFormatter::escape(link)
+            OutputFormatter::escape(link).expect("OutputFormatter::escape does not fail"),
+            OutputFormatter::escape(link).expect("OutputFormatter::escape does not fail")
         )
     }
 
diff --git a/crates/shirabe/src/autoload/autoload_generator.rs b/crates/shirabe/src/autoload/autoload_generator.rs
index a380763..7167f04 100644
--- a/crates/shirabe/src/autoload/autoload_generator.rs
+++ b/crates/shirabe/src/autoload/autoload_generator.rs
@@ -464,7 +464,7 @@ impl AutoloadGenerator {
         if !ambiguous_classes.is_empty() {
             self.io.write_error(&format!(
                 "<info>To resolve ambiguity in classes not under your control you can ignore them by path using <href={}>exclude-from-classmap</>",
-                OutputFormatter::escape("https://getcomposer.org/doc/04-schema.md#exclude-files-from-classmaps")
+                OutputFormatter::escape("https://getcomposer.org/doc/04-schema.md#exclude-files-from-classmaps")?
             ));
         }
 
diff --git a/crates/shirabe/src/command/archive_command.rs b/crates/shirabe/src/command/archive_command.rs
index 53159f8..f657ef4 100644
--- a/crates/shirabe/src/command/archive_command.rs
+++ b/crates/shirabe/src/command/archive_command.rs
@@ -88,7 +88,7 @@ impl ArchiveCommand {
 
         let format = input
             .borrow()
-            .get_option("format")
+            .get_option("format")?
             .as_string()
             .map(|s| s.to_string())
             .unwrap_or_else(|| {
@@ -102,7 +102,7 @@ impl ArchiveCommand {
 
         let dir = input
             .borrow()
-            .get_option("dir")
+            .get_option("dir")?
             .as_string()
             .map(|s| s.to_string())
             .unwrap_or_else(|| {
@@ -120,24 +120,24 @@ impl ArchiveCommand {
             &config,
             input
                 .borrow()
-                .get_argument("package")
+                .get_argument("package")?
                 .as_string()
                 .map(|s| s.to_string()),
             input
                 .borrow()
-                .get_argument("version")
+                .get_argument("version")?
                 .as_string()
                 .map(|s| s.to_string()),
             &format,
             &dir,
             input
                 .borrow()
-                .get_option("file")
+                .get_option("file")?
                 .as_string()
                 .map(|s| s.to_string()),
             input
                 .borrow()
-                .get_option("ignore-filters")
+                .get_option("ignore-filters")?
                 .as_bool()
                 .unwrap_or(false),
             composer.as_ref(),
diff --git a/crates/shirabe/src/command/audit_command.rs b/crates/shirabe/src/command/audit_command.rs
index 0e050cc..cd7a799 100644
--- a/crates/shirabe/src/command/audit_command.rs
+++ b/crates/shirabe/src/command/audit_command.rs
@@ -85,7 +85,7 @@ impl AuditCommand {
 
         let abandoned = input
             .borrow()
-            .get_option("abandoned")
+            .get_option("abandoned")?
             .as_string()
             .map(|s| s.to_string());
         if abandoned.is_some()
@@ -115,7 +115,7 @@ impl AuditCommand {
 
         let mut ignore_severities: indexmap::IndexMap<String, Option<String>> =
             indexmap::IndexMap::new();
-        let cli_severities = input.borrow().get_option("ignore-severity");
+        let cli_severities = input.borrow().get_option("ignore-severity")?;
         if let Some(list) = cli_severities.as_list() {
             for sev in list {
                 if let Some(s) = sev.as_string() {
@@ -128,7 +128,7 @@ impl AuditCommand {
         }
         let ignore_unreachable = input
             .borrow()
-            .get_option("ignore-unreachable")
+            .get_option("ignore-unreachable")?
             .as_bool()
             .unwrap_or(false)
             || audit_config.ignore_unreachable;
@@ -158,7 +158,7 @@ impl AuditCommand {
         let mut composer = crate::command::composer_full_mut(composer);
         if input
             .borrow()
-            .get_option("locked")
+            .get_option("locked")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -173,7 +173,7 @@ impl AuditCommand {
             let locked_repo = locker.get_locked_repository(
                 !input
                     .borrow()
-                    .get_option("no-dev")
+                    .get_option("no-dev")?
                     .as_bool()
                     .unwrap_or(false),
             )?;
diff --git a/crates/shirabe/src/command/base_command.rs b/crates/shirabe/src/command/base_command.rs
index 9218497..af06ad9 100644
--- a/crates/shirabe/src/command/base_command.rs
+++ b/crates/shirabe/src/command/base_command.rs
@@ -369,10 +369,10 @@ impl<C: HasBaseCommandData> BaseCommand for C {
         // shared Application handle is the prerequisite, so only the input flags are honoured here.
         let mut disable_plugins = input
             .borrow()
-            .has_parameter_option(&["--no-plugins"], false);
+            .has_parameter_option(PhpMixed::from(vec!["--no-plugins"]), false);
         let mut disable_scripts = input
             .borrow()
-            .has_parameter_option(&["--no-scripts"], false);
+            .has_parameter_option(PhpMixed::from(vec!["--no-scripts"]), false);
 
         if self.is_self_update_command() {
             disable_plugins = true;
@@ -411,7 +411,9 @@ impl<C: HasBaseCommandData> BaseCommand for C {
             )?;
         }
 
-        if input.borrow().has_parameter_option(&["--no-ansi"], false)
+        if input
+            .borrow()
+            .has_parameter_option(PhpMixed::from(vec!["--no-ansi"]), false)
             && input.borrow().has_option("no-progress")
         {
             input
@@ -443,7 +445,7 @@ impl<C: HasBaseCommandData> BaseCommand for C {
                     if false
                         == input
                             .borrow()
-                            .get_option(option_name)
+                            .get_option(option_name)?
                             .as_bool()
                             .unwrap_or(false)
                         && Platform::get_env(env_name).map_or(false, |s| !s.is_empty() && s != "0")
@@ -459,7 +461,7 @@ impl<C: HasBaseCommandData> BaseCommand for C {
         if true == input.borrow().has_option("ignore-platform-reqs") {
             if !input
                 .borrow()
-                .get_option("ignore-platform-reqs")
+                .get_option("ignore-platform-reqs")?
                 .as_bool()
                 .unwrap_or(false)
                 && Platform::get_env("COMPOSER_IGNORE_PLATFORM_REQS")
@@ -477,13 +479,13 @@ impl<C: HasBaseCommandData> BaseCommand for C {
             && (!input.borrow().has_option("ignore-platform-reqs")
                 || !input
                     .borrow()
-                    .get_option("ignore-platform-reqs")
+                    .get_option("ignore-platform-reqs")?
                     .as_bool()
                     .unwrap_or(false))
         {
             let ignore_platform_req_env = Platform::get_env("COMPOSER_IGNORE_PLATFORM_REQ");
             let ignore_str = ignore_platform_req_env.clone().unwrap_or_default();
-            if 0 == count(&input.borrow().get_option("ignore-platform-req"))
+            if 0 == count(&input.borrow().get_option("ignore-platform-req")?)
                 && ignore_platform_req_env.is_some()
                 && "" != ignore_str
             {
@@ -519,11 +521,11 @@ impl<C: HasBaseCommandData> BaseCommand for C {
         let disable_plugins = disable_plugins
             || input
                 .borrow()
-                .has_parameter_option(&["--no-plugins"], false);
+                .has_parameter_option(PhpMixed::from(vec!["--no-plugins"]), false);
         let disable_scripts = disable_scripts.unwrap_or(false)
             || input
                 .borrow()
-                .has_parameter_option(&["--no-scripts"], false);
+                .has_parameter_option(PhpMixed::from(vec!["--no-scripts"]), false);
 
         // PHP: if ($app instanceof Application && $app->getDisablePluginsByDefault()) $disablePlugins = true;
         //      (same for getDisableScriptsByDefault()).
@@ -565,11 +567,11 @@ impl<C: HasBaseCommandData> BaseCommand for C {
         }
 
         if input.borrow().has_option("prefer-install")
-            && is_string(&input.borrow().get_option("prefer-install"))
+            && is_string(&input.borrow().get_option("prefer-install")?)
         {
             if input
                 .borrow()
-                .get_option("prefer-source")
+                .get_option("prefer-source")?
                 .as_bool()
                 .unwrap_or(false)
             {
@@ -582,7 +584,7 @@ impl<C: HasBaseCommandData> BaseCommand for C {
             }
             if input
                 .borrow()
-                .get_option("prefer-dist")
+                .get_option("prefer-dist")?
                 .as_bool()
                 .unwrap_or(false)
             {
@@ -593,7 +595,7 @@ impl<C: HasBaseCommandData> BaseCommand for C {
                 }
                 .into());
             }
-            let prefer_install = input.borrow().get_option("prefer-install");
+            let prefer_install = input.borrow().get_option("prefer-install")?;
             match prefer_install.as_string().unwrap_or("") {
                 "dist" => {
                     input
@@ -624,37 +626,37 @@ impl<C: HasBaseCommandData> BaseCommand for C {
 
         if input
             .borrow()
-            .get_option("prefer-source")
+            .get_option("prefer-source")?
             .as_bool()
             .unwrap_or(false)
             || input
                 .borrow()
-                .get_option("prefer-dist")
+                .get_option("prefer-dist")?
                 .as_bool()
                 .unwrap_or(false)
             || (keep_vcs_requires_prefer_source
                 && input.borrow().has_option("keep-vcs")
                 && input
                     .borrow()
-                    .get_option("keep-vcs")
+                    .get_option("keep-vcs")?
                     .as_bool()
                     .unwrap_or(false))
         {
             prefer_source = input
                 .borrow()
-                .get_option("prefer-source")
+                .get_option("prefer-source")?
                 .as_bool()
                 .unwrap_or(false)
                 || (keep_vcs_requires_prefer_source
                     && input.borrow().has_option("keep-vcs")
                     && input
                         .borrow()
-                        .get_option("keep-vcs")
+                        .get_option("keep-vcs")?
                         .as_bool()
                         .unwrap_or(false));
             prefer_dist = input
                 .borrow()
-                .get_option("prefer-dist")
+                .get_option("prefer-dist")?
                 .as_bool()
                 .unwrap_or(false);
         }
@@ -681,14 +683,14 @@ impl<C: HasBaseCommandData> BaseCommand for C {
         if true
             == input
                 .borrow()
-                .get_option("ignore-platform-reqs")
+                .get_option("ignore-platform-reqs")?
                 .as_bool()
                 .unwrap_or(false)
         {
             return Ok(PlatformRequirementFilterFactory::ignore_all());
         }
 
-        let ignores = input.borrow().get_option("ignore-platform-req");
+        let ignores = input.borrow().get_option("ignore-platform-req")?;
         if count(&ignores) > 0 {
             return Ok(PlatformRequirementFilterFactory::from_bool_or_list(
                 ignores,
@@ -737,7 +739,10 @@ impl<C: HasBaseCommandData> BaseCommand for C {
         output: std::rc::Rc<std::cell::RefCell<dyn OutputInterface>>,
     ) {
         let mut renderer = Table::new(output);
-        renderer.set_style("compact");
+        renderer
+            .set_style(PhpMixed::from("compact"))
+            .expect("Table::set_style I/O cannot fail")
+            .expect("'compact' is a built-in table style");
         renderer.set_rows(table).render();
         let _ = TableSeparator::new();
     }
@@ -771,7 +776,7 @@ impl<C: HasBaseCommandData> BaseCommand for C {
             .into());
         }
 
-        let val = input.borrow().get_option(opt_name);
+        let val = input.borrow().get_option(opt_name)?;
         let formats: Vec<Box<PhpMixed>> = Auditor::FORMATS
             .iter()
             .map(|s| Box::new(PhpMixed::String(s.to_string())))
@@ -800,14 +805,14 @@ impl<C: HasBaseCommandData> BaseCommand for C {
         let audit = if input.borrow().has_option("audit") {
             input
                 .borrow()
-                .get_option("audit")
+                .get_option("audit")?
                 .as_bool()
                 .unwrap_or(false)
         } else {
             !(input.borrow().has_option("no-audit")
                 && input
                     .borrow()
-                    .get_option("no-audit")
+                    .get_option("no-audit")?
                     .as_bool()
                     .unwrap_or(false))
         };
@@ -824,7 +829,7 @@ impl<C: HasBaseCommandData> BaseCommand for C {
             || (input.borrow().has_option("no-security-blocking")
                 && input
                     .borrow()
-                    .get_option("no-security-blocking")
+                    .get_option("no-security-blocking")?
                     .as_bool()
                     .unwrap_or(false))
         {
diff --git a/crates/shirabe/src/command/base_config_command.rs b/crates/shirabe/src/command/base_config_command.rs
index bfdd33a..4f6fd59 100644
--- a/crates/shirabe/src/command/base_config_command.rs
+++ b/crates/shirabe/src/command/base_config_command.rs
@@ -31,10 +31,10 @@ pub trait BaseConfigCommand: BaseCommand {
 
         if input
             .borrow()
-            .get_option("global")
+            .get_option("global")?
             .as_bool()
             .unwrap_or(false)
-            && !input.borrow().get_option("file").is_null()
+            && !input.borrow().get_option("file")?.is_null()
         {
             return Err(anyhow::anyhow!("--file and --global can not be combined"));
         }
@@ -48,7 +48,7 @@ pub trait BaseConfigCommand: BaseCommand {
         // When using --global flag, set baseDir to home directory for correct absolute path resolution
         if input
             .borrow()
-            .get_option("global")
+            .get_option("global")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -56,7 +56,7 @@ pub trait BaseConfigCommand: BaseCommand {
             config_rc.borrow_mut().set_base_dir(Some(home));
         }
 
-        let config_file = self.get_composer_config_file(input.clone(), &*config_rc.borrow());
+        let config_file = self.get_composer_config_file(input.clone(), &*config_rc.borrow())?;
 
         // Create global composer.json if invoked using `composer global [config-cmd]`
         if (config_file == "composer.json" || config_file == "./composer.json")
@@ -77,7 +77,7 @@ pub trait BaseConfigCommand: BaseCommand {
         // Initialize the global file if it's not there, ignoring any warnings or notices
         if input
             .borrow()
-            .get_option("global")
+            .get_option("global")?
             .as_bool()
             .unwrap_or(false)
             && !self.config_file().unwrap().borrow().exists()
@@ -116,21 +116,21 @@ pub trait BaseConfigCommand: BaseCommand {
         &self,
         input: std::rc::Rc<std::cell::RefCell<dyn InputInterface>>,
         config: &Config,
-    ) -> String {
+    ) -> anyhow::Result<String> {
         if input
             .borrow()
-            .get_option("global")
+            .get_option("global")?
             .as_bool()
             .unwrap_or(false)
         {
-            format!("{}/config.json", config.get("home"))
+            Ok(format!("{}/config.json", config.get("home")))
         } else {
-            input
+            Ok(input
                 .borrow()
-                .get_option("file")
+                .get_option("file")?
                 .as_string()
                 .map(|s| s.to_string())
-                .unwrap_or_else(|| Factory::get_composer_file().unwrap_or_default())
+                .unwrap_or_else(|| Factory::get_composer_file().unwrap_or_default()))
         }
     }
 
@@ -140,21 +140,21 @@ pub trait BaseConfigCommand: BaseCommand {
         &self,
         input: std::rc::Rc<std::cell::RefCell<dyn InputInterface>>,
         config: &Config,
-    ) -> String {
+    ) -> anyhow::Result<String> {
         if input
             .borrow()
-            .get_option("global")
+            .get_option("global")?
             .as_bool()
             .unwrap_or(false)
         {
-            format!("{}/auth.json", config.get("home"))
+            Ok(format!("{}/auth.json", config.get("home")))
         } else {
-            let composer_config = self.get_composer_config_file(input, config);
+            let composer_config = self.get_composer_config_file(input, config)?;
             let parent = std::path::Path::new(&composer_config)
                 .parent()
                 .map(|p| p.to_string_lossy().to_string())
                 .unwrap_or_default();
-            format!("{}/auth.json", parent)
+            Ok(format!("{}/auth.json", parent))
         }
     }
 }
diff --git a/crates/shirabe/src/command/base_dependency_command.rs b/crates/shirabe/src/command/base_dependency_command.rs
index 27f3544..1ca8a76 100644
--- a/crates/shirabe/src/command/base_dependency_command.rs
+++ b/crates/shirabe/src/command/base_dependency_command.rs
@@ -59,7 +59,7 @@ pub trait BaseDependencyCommand: BaseCommand {
 
         if input
             .borrow()
-            .get_option("locked")
+            .get_option("locked")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -94,7 +94,7 @@ pub trait BaseDependencyCommand: BaseCommand {
                 && (root_pkg.get_requires().len() > 0 || root_pkg.get_dev_requires().len() > 0)
             {
                 output.borrow().writeln(
-                    "<warning>No dependencies installed. Try running composer install or update, or use --locked.</warning>",
+                    &["<warning>No dependencies installed. Try running composer install or update, or use --locked.</warning>".to_string()],
                     shirabe_external_packages::symfony::console::output::OUTPUT_NORMAL,
                 );
 
@@ -122,14 +122,14 @@ pub trait BaseDependencyCommand: BaseCommand {
 
         let needle = input
             .borrow()
-            .get_argument(Self::ARGUMENT_PACKAGE)
+            .get_argument(Self::ARGUMENT_PACKAGE)?
             .as_string()
             .unwrap_or_default()
             .to_string();
         let text_constraint: String = if input.borrow().has_argument(Self::ARGUMENT_CONSTRAINT) {
             input
                 .borrow()
-                .get_argument(Self::ARGUMENT_CONSTRAINT)
+                .get_argument(Self::ARGUMENT_CONSTRAINT)?
                 .as_string()
                 .unwrap_or("*")
                 .to_string()
@@ -246,13 +246,13 @@ pub trait BaseDependencyCommand: BaseCommand {
 
         let render_tree = input
             .borrow()
-            .get_option(Self::OPTION_TREE)
+            .get_option(Self::OPTION_TREE)?
             .as_bool()
             .unwrap_or(false);
         let recursive = render_tree
             || input
                 .borrow()
-                .get_option(Self::OPTION_RECURSIVE)
+                .get_option(Self::OPTION_RECURSIVE)?
                 .as_bool()
                 .unwrap_or(false);
 
@@ -357,7 +357,7 @@ pub trait BaseDependencyCommand: BaseCommand {
                 let name_with_link = match &package_url {
                     Some(url) => format!(
                         "<href={}>{}</>",
-                        OutputFormatter::escape(url),
+                        OutputFormatter::escape(url).expect("OutputFormatter::escape never fails"),
                         package.get_pretty_name()
                     ),
                     None => package.get_pretty_name().to_string(),
@@ -399,12 +399,12 @@ pub trait BaseDependencyCommand: BaseCommand {
             "blue".to_string(),
         ];
         for color in self.colors() {
-            let style = OutputFormatterStyle::new(Some(color), None, None);
+            let style = OutputFormatterStyle::new(Some(color), None, vec![]);
             output
                 .borrow()
                 .get_formatter()
                 .borrow_mut()
-                .set_style(color, style);
+                .set_style(color, Box::new(style));
         }
     }
 
@@ -428,7 +428,7 @@ pub trait BaseDependencyCommand: BaseCommand {
             let name_with_link = match &package_url {
                 Some(url) => format!(
                     "<href={}>{}</>",
-                    OutputFormatter::escape(url),
+                    OutputFormatter::escape(url).expect("OutputFormatter::escape never fails"),
                     package.get_pretty_name()
                 ),
                 None => package.get_pretty_name().to_string(),
diff --git a/crates/shirabe/src/command/bump_command.rs b/crates/shirabe/src/command/bump_command.rs
index 92b1331..6f947c2 100644
--- a/crates/shirabe/src/command/bump_command.rs
+++ b/crates/shirabe/src/command/bump_command.rs
@@ -62,7 +62,7 @@ impl BumpCommand {
     ) -> Result<i64> {
         let packages_filter: Vec<String> = input
             .borrow()
-            .get_argument("packages")
+            .get_argument("packages")?
             .as_list()
             .map(|l| {
                 l.iter()
@@ -73,17 +73,17 @@ impl BumpCommand {
 
         let dev_only = input
             .borrow()
-            .get_option("dev-only")
+            .get_option("dev-only")?
             .as_bool()
             .unwrap_or(false);
         let no_dev_only = input
             .borrow()
-            .get_option("no-dev-only")
+            .get_option("no-dev-only")?
             .as_bool()
             .unwrap_or(false);
         let dry_run = input
             .borrow()
-            .get_option("dry-run")
+            .get_option("dry-run")?
             .as_bool()
             .unwrap_or(false);
         let io = self.get_io().clone();
diff --git a/crates/shirabe/src/command/check_platform_reqs_command.rs b/crates/shirabe/src/command/check_platform_reqs_command.rs
index 2742f6f..658d049 100644
--- a/crates/shirabe/src/command/check_platform_reqs_command.rs
+++ b/crates/shirabe/src/command/check_platform_reqs_command.rs
@@ -60,7 +60,7 @@ impl CheckPlatformReqsCommand {
 
         let no_dev = input
             .borrow()
-            .get_option("no-dev")
+            .get_option("no-dev")?
             .as_bool()
             .unwrap_or(false);
 
@@ -69,7 +69,7 @@ impl CheckPlatformReqsCommand {
 
         let installed_repo_base: crate::repository::RepositoryInterfaceHandle = if input
             .borrow()
-            .get_option("lock")
+            .get_option("lock")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -248,7 +248,7 @@ impl CheckPlatformReqsCommand {
 
         let format = input
             .borrow()
-            .get_option("format")
+            .get_option("format")?
             .as_string()
             .unwrap_or("text")
             .to_string();
diff --git a/crates/shirabe/src/command/config_command.rs b/crates/shirabe/src/command/config_command.rs
index 135b47f..342797c 100644
--- a/crates/shirabe/src/command/config_command.rs
+++ b/crates/shirabe/src/command/config_command.rs
@@ -126,7 +126,7 @@ impl ConfigCommand {
         self.initialize(input.clone(), output)?;
 
         let auth_config_file =
-            self.get_auth_config_file(input.clone(), &*self.config.as_ref().unwrap().borrow());
+            self.get_auth_config_file(input.clone(), &*self.config.as_ref().unwrap().borrow())?;
 
         let auth_config_file_jf = std::rc::Rc::new(std::cell::RefCell::new(JsonFile::new(
             auth_config_file,
@@ -137,7 +137,7 @@ impl ConfigCommand {
         self.auth_config_source = Some(JsonConfigSource::new(auth_config_file_jf, true));
 
         // Initialize the global file if it's not there, ignoring any warnings or notices
-        if input.borrow().get_option("global").as_bool() == Some(true)
+        if input.borrow().get_option("global")?.as_bool() == Some(true)
             && !self.auth_config_file.as_ref().unwrap().borrow().exists()
         {
             touch(self.auth_config_file.as_ref().unwrap().borrow().get_path());
@@ -182,7 +182,7 @@ impl ConfigCommand {
         output: std::rc::Rc<std::cell::RefCell<dyn OutputInterface>>,
     ) -> anyhow::Result<i64> {
         // Open file in editor
-        if input.borrow().get_option("editor").as_bool() == Some(true) {
+        if input.borrow().get_option("editor")?.as_bool() == Some(true) {
             let mut editor = Platform::get_env("EDITOR");
             if editor.is_none() || editor.as_deref() == Some("") {
                 if Platform::is_windows() {
@@ -202,7 +202,7 @@ impl ConfigCommand {
                 editor = Some(escapeshellcmd(&editor.unwrap()));
             }
 
-            let file = if input.borrow().get_option("auth").as_bool() == Some(true) {
+            let file = if input.borrow().get_option("auth")?.as_bool() == Some(true) {
                 self.auth_config_file
                     .as_ref()
                     .unwrap()
@@ -234,7 +234,7 @@ impl ConfigCommand {
             return Ok(0);
         }
 
-        if input.borrow().get_option("global").as_bool() != Some(true) {
+        if input.borrow().get_option("global")?.as_bool() != Some(true) {
             let config_read = self.config_file.as_ref().unwrap().borrow_mut().read()?;
             let config_map = match config_read {
                 PhpMixed::Array(m) => m
@@ -272,7 +272,7 @@ impl ConfigCommand {
         }
 
         // List the configuration of the file settings
-        if input.borrow().get_option("list").as_bool() == Some(true) {
+        if input.borrow().get_option("list")?.as_bool() == Some(true) {
             let all_map = self.config.as_ref().unwrap().borrow_mut().all(0)?;
             let raw_map = self.config.as_ref().unwrap().borrow().raw();
             let to_mixed = |m: IndexMap<String, PhpMixed>| -> PhpMixed {
@@ -283,20 +283,20 @@ impl ConfigCommand {
                 to_mixed(raw_map),
                 output,
                 None,
-                input.borrow().get_option("source").as_bool() == Some(true),
+                input.borrow().get_option("source")?.as_bool() == Some(true),
             );
 
             return Ok(0);
         }
 
-        let setting_key_arg = input.borrow().get_argument("setting-key");
+        let setting_key_arg = input.borrow().get_argument("setting-key")?;
         let setting_key = match setting_key_arg.as_string() {
             Some(s) => s.to_string(),
             None => return Ok(0),
         };
 
         // If the user enters in a config variable, parse it and save to file
-        let setting_values_raw = input.borrow().get_argument("setting-value");
+        let setting_values_raw = input.borrow().get_argument("setting-value")?;
         let setting_values: Vec<String> = setting_values_raw
             .as_list()
             .map(|l| {
@@ -305,7 +305,7 @@ impl ConfigCommand {
                     .collect()
             })
             .unwrap_or_default();
-        if !setting_values.is_empty() && input.borrow().get_option("unset").as_bool() == Some(true)
+        if !setting_values.is_empty() && input.borrow().get_option("unset")?.as_bool() == Some(true)
         {
             return Err(RuntimeException {
                 message: "You can not combine a setting value with --unset".to_string(),
@@ -315,7 +315,8 @@ impl ConfigCommand {
         }
 
         // show the value if no value is provided
-        if setting_values.is_empty() && input.borrow().get_option("unset").as_bool() != Some(true) {
+        if setting_values.is_empty() && input.borrow().get_option("unset")?.as_bool() != Some(true)
+        {
             let properties: Vec<&'static str> = Self::CONFIGURABLE_PACKAGE_PROPERTIES.to_vec();
             let mut properties_defaults: IndexMap<String, PhpMixed> = IndexMap::new();
             properties_defaults.insert("type".to_string(), PhpMixed::String("library".to_string()));
@@ -421,7 +422,7 @@ impl ConfigCommand {
             {
                 value = self.config.as_ref().unwrap().borrow_mut().get_with_flags(
                     &setting_key,
-                    if input.borrow().get_option("absolute").as_bool() == Some(true) {
+                    if input.borrow().get_option("absolute")?.as_bool() == Some(true) {
                         0
                     } else {
                         Config::RELATIVE_PATHS
@@ -504,7 +505,7 @@ impl ConfigCommand {
             };
 
             let mut source_of_config_value = String::new();
-            if input.borrow().get_option("source").as_bool() == Some(true) {
+            if input.borrow().get_option("source")?.as_bool() == Some(true) {
                 source_of_config_value = format!(" ({})", source);
             }
 
@@ -542,7 +543,7 @@ impl ConfigCommand {
         let multi_config_values = build_multi_config_values();
 
         // allow unsetting audit config entirely
-        if input.borrow().get_option("unset").as_bool() == Some(true) && setting_key == "audit" {
+        if input.borrow().get_option("unset")?.as_bool() == Some(true) && setting_key == "audit" {
             self.config_source
                 .as_mut()
                 .unwrap()
@@ -551,7 +552,7 @@ impl ConfigCommand {
             return Ok(0);
         }
 
-        if input.borrow().get_option("unset").as_bool() == Some(true)
+        if input.borrow().get_option("unset")?.as_bool() == Some(true)
             && (unique_config_values.contains_key(&setting_key)
                 || multi_config_values.contains_key(&setting_key))
         {
@@ -596,7 +597,7 @@ impl ConfigCommand {
         )
         .unwrap_or(false)
         {
-            if input.borrow().get_option("unset").as_bool() == Some(true) {
+            if input.borrow().get_option("unset")?.as_bool() == Some(true) {
                 self.config_source
                     .as_mut()
                     .unwrap()
@@ -637,7 +638,7 @@ impl ConfigCommand {
         )
         .unwrap_or(false)
         {
-            if input.borrow().get_option("unset").as_bool() == Some(true) {
+            if input.borrow().get_option("unset")?.as_bool() == Some(true) {
                 self.config_source
                     .as_mut()
                     .unwrap()
@@ -668,7 +669,7 @@ impl ConfigCommand {
         let unique_props = build_unique_props();
         let multi_props = build_multi_props();
 
-        if input.borrow().get_option("global").as_bool() == Some(true)
+        if input.borrow().get_option("global")?.as_bool() == Some(true)
             && (unique_props.contains_key(&setting_key)
                 || multi_props.contains_key(&setting_key)
                 || strpos(&setting_key, "extra.") == Some(0))
@@ -679,7 +680,7 @@ impl ConfigCommand {
             }
             .into());
         }
-        if input.borrow().get_option("unset").as_bool() == Some(true)
+        if input.borrow().get_option("unset")?.as_bool() == Some(true)
             && (unique_props.contains_key(&setting_key) || multi_props.contains_key(&setting_key))
         {
             self.config_source
@@ -709,7 +710,7 @@ impl ConfigCommand {
         )
         .unwrap_or(false)
         {
-            if input.borrow().get_option("unset").as_bool() == Some(true) {
+            if input.borrow().get_option("unset")?.as_bool() == Some(true) {
                 self.config_source
                     .as_mut()
                     .unwrap()
@@ -731,7 +732,7 @@ impl ConfigCommand {
                 self.config_source.as_mut().unwrap().add_repository(
                     &matches[1],
                     PhpMixed::Array(repo),
-                    input.borrow().get_option("append").as_bool() == Some(true),
+                    input.borrow().get_option("append")?.as_bool() == Some(true),
                 );
 
                 return Ok(0);
@@ -747,7 +748,7 @@ impl ConfigCommand {
                         self.config_source.as_mut().unwrap().add_repository(
                             &matches[1],
                             PhpMixed::Bool(false),
-                            input.borrow().get_option("append").as_bool() == Some(true),
+                            input.borrow().get_option("append")?.as_bool() == Some(true),
                         );
 
                         return Ok(0);
@@ -757,7 +758,7 @@ impl ConfigCommand {
                     self.config_source.as_mut().unwrap().add_repository(
                         &matches[1],
                         value,
-                        input.borrow().get_option("append").as_bool() == Some(true),
+                        input.borrow().get_option("append")?.as_bool() == Some(true),
                     );
 
                     return Ok(0);
@@ -774,7 +775,7 @@ impl ConfigCommand {
         // handle extra
         let mut matches: IndexMap<CaptureKey, String> = IndexMap::new();
         if Preg::is_match3("/^extra\\.(.+)/", &setting_key, Some(&mut matches)).unwrap_or(false) {
-            if input.borrow().get_option("unset").as_bool() == Some(true) {
+            if input.borrow().get_option("unset")?.as_bool() == Some(true) {
                 self.config_source
                     .as_mut()
                     .unwrap()
@@ -784,9 +785,9 @@ impl ConfigCommand {
             }
 
             let mut value = PhpMixed::String(values[0].clone());
-            if input.borrow().get_option("json").as_bool() == Some(true) {
+            if input.borrow().get_option("json")?.as_bool() == Some(true) {
                 value = JsonFile::parse_json(Some(&values[0]), Some("composer.json"))?;
-                if input.borrow().get_option("merge").as_bool() == Some(true) {
+                if input.borrow().get_option("merge")?.as_bool() == Some(true) {
                     let current_value_outer =
                         self.config_file.as_ref().unwrap().borrow_mut().read()?;
                     let bits = explode(".", &setting_key);
@@ -833,7 +834,7 @@ impl ConfigCommand {
         // handle suggest
         let mut matches: IndexMap<CaptureKey, String> = IndexMap::new();
         if Preg::is_match3("/^suggest\\.(.+)/", &setting_key, Some(&mut matches)).unwrap_or(false) {
-            if input.borrow().get_option("unset").as_bool() == Some(true) {
+            if input.borrow().get_option("unset")?.as_bool() == Some(true) {
                 self.config_source
                     .as_mut()
                     .unwrap()
@@ -855,7 +856,7 @@ impl ConfigCommand {
             setting_key.as_str().into(),
             &vec!["suggest".to_string(), "extra".to_string()].into(),
             true,
-        ) && input.borrow().get_option("unset").as_bool() == Some(true)
+        ) && input.borrow().get_option("unset")?.as_bool() == Some(true)
         {
             self.config_source
                 .as_mut()
@@ -869,7 +870,7 @@ impl ConfigCommand {
         let mut matches: IndexMap<CaptureKey, String> = IndexMap::new();
         if Preg::is_match3("/^platform\\.(.+)/", &setting_key, Some(&mut matches)).unwrap_or(false)
         {
-            if input.borrow().get_option("unset").as_bool() == Some(true) {
+            if input.borrow().get_option("unset")?.as_bool() == Some(true) {
                 self.config_source
                     .as_mut()
                     .unwrap()
@@ -892,7 +893,8 @@ impl ConfigCommand {
         }
 
         // handle unsetting platform
-        if setting_key == "platform" && input.borrow().get_option("unset").as_bool() == Some(true) {
+        if setting_key == "platform" && input.borrow().get_option("unset")?.as_bool() == Some(true)
+        {
             self.config_source
                 .as_mut()
                 .unwrap()
@@ -911,7 +913,7 @@ impl ConfigCommand {
             .into(),
             true,
         ) {
-            if input.borrow().get_option("unset").as_bool() == Some(true) {
+            if input.borrow().get_option("unset")?.as_bool() == Some(true) {
                 self.config_source
                     .as_mut()
                     .unwrap()
@@ -926,7 +928,7 @@ impl ConfigCommand {
                     .map(|s| Box::new(PhpMixed::String(s.clone())))
                     .collect(),
             );
-            if input.borrow().get_option("json").as_bool() == Some(true) {
+            if input.borrow().get_option("json")?.as_bool() == Some(true) {
                 value = JsonFile::parse_json(Some(&values[0]), Some("composer.json"))?;
                 if !is_array(&value) {
                     return Err(RuntimeException {
@@ -937,7 +939,7 @@ impl ConfigCommand {
                 }
             }
 
-            if input.borrow().get_option("merge").as_bool() == Some(true) {
+            if input.borrow().get_option("merge")?.as_bool() == Some(true) {
                 let current_config = self.config_file.as_ref().unwrap().borrow_mut().read()?;
                 let key_suffix = str_replace("audit.", "", &setting_key);
                 let current_value = current_config
@@ -990,7 +992,7 @@ impl ConfigCommand {
         // handle auth
         let mut matches: IndexMap<CaptureKey, String> = IndexMap::new();
         if Preg::is_match3("/^(bitbucket-oauth|github-oauth|gitlab-oauth|gitlab-token|http-basic|custom-headers|bearer|forgejo-token)\\.(.+)/", &setting_key, Some(&mut matches)).unwrap_or(false) {
-            if input.borrow().get_option("unset").as_bool() == Some(true) {
+            if input.borrow().get_option("unset")?.as_bool() == Some(true) {
                 self.auth_config_source.as_mut().unwrap().remove_config_setting(&format!("{}.{}", matches[1], matches[2]));
                 self.config_source.as_mut().unwrap().remove_config_setting(&format!("{}.{}", matches[1], matches[2]));
 
@@ -1096,7 +1098,7 @@ impl ConfigCommand {
         // handle script
         let mut matches: IndexMap<CaptureKey, String> = IndexMap::new();
         if Preg::is_match3("/^scripts\\.(.+)/", &setting_key, Some(&mut matches)).unwrap_or(false) {
-            if input.borrow().get_option("unset").as_bool() == Some(true) {
+            if input.borrow().get_option("unset")?.as_bool() == Some(true) {
                 self.config_source
                     .as_mut()
                     .unwrap()
@@ -1124,7 +1126,7 @@ impl ConfigCommand {
         }
 
         // handle unsetting other top level properties
-        if input.borrow().get_option("unset").as_bool() == Some(true) {
+        if input.borrow().get_option("unset")?.as_bool() == Some(true) {
             self.config_source
                 .as_mut()
                 .unwrap()
diff --git a/crates/shirabe/src/command/create_project_command.rs b/crates/shirabe/src/command/create_project_command.rs
index ba384d5..247941b 100644
--- a/crates/shirabe/src/command/create_project_command.rs
+++ b/crates/shirabe/src/command/create_project_command.rs
@@ -119,12 +119,12 @@ impl CreateProjectCommand {
         let (prefer_source, prefer_dist) =
             self.get_preferred_install_options(&config.borrow(), input.clone(), true)?;
 
-        if input.borrow().get_option("dev").as_bool().unwrap_or(false) {
+        if input.borrow().get_option("dev")?.as_bool().unwrap_or(false) {
             io.write_error("<warning>You are using the deprecated option \"dev\". Dev packages are installed by default now.</warning>");
         }
         if input
             .borrow()
-            .get_option("no-custom-installers")
+            .get_option("no-custom-installers")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -135,9 +135,9 @@ impl CreateProjectCommand {
         }
 
         if input.borrow().is_interactive()
-            && input.borrow().get_option("ask").as_bool().unwrap_or(false)
+            && input.borrow().get_option("ask")?.as_bool().unwrap_or(false)
         {
-            let package = input.borrow().get_argument("package");
+            let package = input.borrow().get_argument("package")?;
             if package.is_null() {
                 return Err(RuntimeException {
                     message: "Not enough arguments (missing: \"package\").".to_string(),
@@ -156,8 +156,8 @@ impl CreateProjectCommand {
                 .set_argument("directory", io.ask(prompt, PhpMixed::Null));
         }
 
-        let repository_opt = input.borrow().get_option("repository");
-        let repository_url_opt = input.borrow().get_option("repository-url");
+        let repository_opt = input.borrow().get_option("repository")?;
+        let repository_url_opt = input.borrow().get_option("repository-url")?;
         let repositories = if repository_opt
             .as_list()
             .map(|l| l.len() > 0)
@@ -174,61 +174,61 @@ impl CreateProjectCommand {
             input.clone(),
             input
                 .borrow()
-                .get_argument("package")
+                .get_argument("package")?
                 .as_string()
                 .map(|s| s.to_string()),
             input
                 .borrow()
-                .get_argument("directory")
+                .get_argument("directory")?
                 .as_string()
                 .map(|s| s.to_string()),
             input
                 .borrow()
-                .get_argument("version")
+                .get_argument("version")?
                 .as_string()
                 .map(|s| s.to_string()),
             input
                 .borrow()
-                .get_option("stability")
+                .get_option("stability")?
                 .as_string()
                 .map(|s| s.to_string()),
             prefer_source,
             prefer_dist,
             !input
                 .borrow()
-                .get_option("no-dev")
+                .get_option("no-dev")?
                 .as_bool()
                 .unwrap_or(false),
             repositories,
             input
                 .borrow()
-                .get_option("no-plugins")
+                .get_option("no-plugins")?
                 .as_bool()
                 .unwrap_or(false),
             input
                 .borrow()
-                .get_option("no-scripts")
+                .get_option("no-scripts")?
                 .as_bool()
                 .unwrap_or(false),
             input
                 .borrow()
-                .get_option("no-progress")
+                .get_option("no-progress")?
                 .as_bool()
                 .unwrap_or(false),
             input
                 .borrow()
-                .get_option("no-install")
+                .get_option("no-install")?
                 .as_bool()
                 .unwrap_or(false),
             Some(self.get_platform_requirement_filter(input.clone())?),
             !input
                 .borrow()
-                .get_option("no-secure-http")
+                .get_option("no-secure-http")?
                 .as_bool()
                 .unwrap_or(false),
             input
                 .borrow()
-                .get_option("add-repository")
+                .get_option("add-repository")?
                 .as_bool()
                 .unwrap_or(false),
         )
@@ -478,9 +478,9 @@ impl CreateProjectCommand {
         }
 
         let mut has_vcs = installed_from_vcs;
-        let remove_vcs = !input.borrow().get_option("keep-vcs").as_bool().unwrap_or(false)
+        let remove_vcs = !input.borrow().get_option("keep-vcs")?.as_bool().unwrap_or(false)
             && installed_from_vcs
-            && (input.borrow().get_option("remove-vcs").as_bool().unwrap_or(false)
+            && (input.borrow().get_option("remove-vcs")?.as_bool().unwrap_or(false)
                 || !io.is_interactive()
                 || io.ask_confirmation(
                     "<info>Do you want to remove the existing VCS (.git, .svn..) history?</info> [<comment>y,n</comment>]? ".to_string(),
diff --git a/crates/shirabe/src/command/dump_autoload_command.rs b/crates/shirabe/src/command/dump_autoload_command.rs
index de0a57d..ae51eac 100644
--- a/crates/shirabe/src/command/dump_autoload_command.rs
+++ b/crates/shirabe/src/command/dump_autoload_command.rs
@@ -86,7 +86,7 @@ impl DumpAutoloadCommand {
 
         let optimize = input
             .borrow()
-            .get_option("optimize")
+            .get_option("optimize")?
             .as_bool()
             .unwrap_or(false)
             || config
@@ -96,7 +96,7 @@ impl DumpAutoloadCommand {
                 .unwrap_or(false);
         let authoritative = input
             .borrow()
-            .get_option("classmap-authoritative")
+            .get_option("classmap-authoritative")?
             .as_bool()
             .unwrap_or(false)
             || config
@@ -106,11 +106,15 @@ impl DumpAutoloadCommand {
                 .unwrap_or(false);
         let apcu_prefix = input
             .borrow()
-            .get_option("apcu-prefix")
+            .get_option("apcu-prefix")?
             .as_string()
             .map(|s| s.to_string());
         let apcu = apcu_prefix.is_some()
-            || input.borrow().get_option("apcu").as_bool().unwrap_or(false)
+            || input
+                .borrow()
+                .get_option("apcu")?
+                .as_bool()
+                .unwrap_or(false)
             || config
                 .borrow_mut()
                 .get("apcu-autoloader")
@@ -119,7 +123,7 @@ impl DumpAutoloadCommand {
 
         if input
             .borrow()
-            .get_option("strict-psr")
+            .get_option("strict-psr")?
             .as_bool()
             .unwrap_or(false)
             && !optimize
@@ -133,7 +137,7 @@ impl DumpAutoloadCommand {
         }
         if input
             .borrow()
-            .get_option("strict-ambiguous")
+            .get_option("strict-ambiguous")?
             .as_bool()
             .unwrap_or(false)
             && !optimize
@@ -160,7 +164,7 @@ impl DumpAutoloadCommand {
         let platform_requirement_filter = self.get_platform_requirement_filter(input.clone())?;
         if input
             .borrow()
-            .get_option("dry-run")
+            .get_option("dry-run")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -171,7 +175,7 @@ impl DumpAutoloadCommand {
         }
         if input
             .borrow()
-            .get_option("no-dev")
+            .get_option("no-dev")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -180,10 +184,10 @@ impl DumpAutoloadCommand {
                 .borrow_mut()
                 .set_dev_mode(false);
         }
-        if input.borrow().get_option("dev").as_bool().unwrap_or(false) {
+        if input.borrow().get_option("dev")?.as_bool().unwrap_or(false) {
             if input
                 .borrow()
-                .get_option("no-dev")
+                .get_option("no-dev")?
                 .as_bool()
                 .unwrap_or(false)
             {
@@ -218,7 +222,7 @@ impl DumpAutoloadCommand {
             .set_platform_requirement_filter(platform_requirement_filter);
         let strict_ambiguous = input
             .borrow()
-            .get_option("strict-ambiguous")
+            .get_option("strict-ambiguous")?
             .as_bool()
             .unwrap_or(false);
 
@@ -266,7 +270,7 @@ impl DumpAutoloadCommand {
         if missing_dependencies
             || (input
                 .borrow()
-                .get_option("strict-psr")
+                .get_option("strict-psr")?
                 .as_bool()
                 .unwrap_or(false)
                 && !class_map.get_psr_violations().is_empty())
@@ -276,7 +280,7 @@ impl DumpAutoloadCommand {
 
         if input
             .borrow()
-            .get_option("strict-ambiguous")
+            .get_option("strict-ambiguous")?
             .as_bool()
             .unwrap_or(false)
             && !class_map.get_ambiguous_classes(None)?.is_empty()
diff --git a/crates/shirabe/src/command/exec_command.rs b/crates/shirabe/src/command/exec_command.rs
index 3aec024..3c9cee2 100644
--- a/crates/shirabe/src/command/exec_command.rs
+++ b/crates/shirabe/src/command/exec_command.rs
@@ -49,8 +49,12 @@ impl ExecCommand {
             return Ok(());
         }
 
-        if input.borrow().get_argument("binary").as_string().is_some()
-            || input.borrow().get_option("list").as_bool().unwrap_or(false)
+        if input.borrow().get_argument("binary")?.as_string().is_some()
+            || input
+                .borrow()
+                .get_option("list")?
+                .as_bool()
+                .unwrap_or(false)
         {
             return Ok(());
         }
@@ -82,8 +86,12 @@ impl ExecCommand {
     ) -> Result<i64> {
         let composer = self.require_composer(None, None)?;
 
-        if input.borrow().get_option("list").as_bool().unwrap_or(false)
-            || input.borrow().get_argument("binary").as_string().is_none()
+        if input
+            .borrow()
+            .get_option("list")?
+            .as_bool()
+            .unwrap_or(false)
+            || input.borrow().get_argument("binary")?.as_string().is_none()
         {
             let bins = self.get_binaries(true)?;
             if bins.is_empty() {
@@ -115,7 +123,7 @@ impl ExecCommand {
 
         let binary = input
             .borrow()
-            .get_argument("binary")
+            .get_argument("binary")?
             .as_string()
             .unwrap_or("")
             .to_string();
@@ -141,7 +149,7 @@ impl ExecCommand {
 
         let args = input
             .borrow()
-            .get_argument("args")
+            .get_argument("args")?
             .as_list()
             .map(|l| {
                 l.iter()
diff --git a/crates/shirabe/src/command/fund_command.rs b/crates/shirabe/src/command/fund_command.rs
index 277d3e4..6223def 100644
--- a/crates/shirabe/src/command/fund_command.rs
+++ b/crates/shirabe/src/command/fund_command.rs
@@ -122,7 +122,7 @@ impl FundCommand {
 
         let format = input
             .borrow()
-            .get_option("format")
+            .get_option("format")?
             .as_string()
             .unwrap_or("text")
             .to_string();
@@ -150,7 +150,7 @@ impl FundCommand {
                     }
                     io.write(&format!(
                         "    <href={}>{}</>",
-                        OutputFormatter::escape(url),
+                        OutputFormatter::escape(url)?,
                         url
                     ));
                 }
diff --git a/crates/shirabe/src/command/global_command.rs b/crates/shirabe/src/command/global_command.rs
index f066721..e978dff 100644
--- a/crates/shirabe/src/command/global_command.rs
+++ b/crates/shirabe/src/command/global_command.rs
@@ -4,10 +4,12 @@ use std::path::Path;
 
 use anyhow::Result;
 use shirabe_external_packages::composer::pcre::Preg;
+use shirabe_external_packages::symfony::console::input::ArgvInput;
+use shirabe_external_packages::symfony::console::input::ArrayInput;
 use shirabe_external_packages::symfony::console::input::InputInterface;
 use shirabe_external_packages::symfony::console::input::StringInput;
 use shirabe_external_packages::symfony::console::output::OutputInterface;
-use shirabe_php_shim::{LogicException, RuntimeException, chdir};
+use shirabe_php_shim::{AsAny, LogicException, RuntimeException, chdir};
 
 use crate::command::{BaseCommand, BaseCommandData, HasBaseCommandData};
 use crate::console::input::InputArgument;
@@ -56,12 +58,35 @@ impl GlobalCommand {
             );
     }
 
+    // TODO remove for Symfony 6+ as it is then in the interface.
+    // Mirrors PHP's `method_exists($input, '__toString')` guard followed by
+    // `$input->__toString()`. `InputInterface` does not declare `__toString`, so the
+    // concrete stringable input types are matched explicitly.
+    fn input_to_string(input: &dyn InputInterface) -> Result<String> {
+        let input_any = input.as_any();
+        if let Some(argv_input) = input_any.downcast_ref::<ArgvInput>() {
+            Ok(argv_input.to_string())
+        } else if let Some(array_input) = input_any.downcast_ref::<ArrayInput>() {
+            Ok(array_input.to_string())
+        } else if input_any.is::<StringInput>() {
+            // StringInput's stringification is not exposed by shirabe-external-packages
+            // (its inner ArgvInput is pub(crate) and it defines no public __toString).
+            todo!("StringInput::__toString is not accessible from the shirabe crate")
+        } else {
+            Err(LogicException {
+                message: "Expected an Input instance that is stringable".to_string(),
+                code: 0,
+            }
+            .into())
+        }
+    }
+
     pub fn run(
         &mut self,
         input: std::rc::Rc<std::cell::RefCell<dyn InputInterface>>,
         output: std::rc::Rc<std::cell::RefCell<dyn OutputInterface>>,
     ) -> Result<i64> {
-        let tokens = Preg::split(r"{\s+}", &input.borrow().to_input_string())?;
+        let tokens = Preg::split(r"{\s+}", &Self::input_to_string(&*input.borrow())?)?;
         let mut args: Vec<String> = vec![];
         for token in &tokens {
             if !token.is_empty() && !token.starts_with('-') {
@@ -123,12 +148,12 @@ impl GlobalCommand {
         let new_input_str = Preg::replace4(
             r"{\bg(?:l(?:o(?:b(?:a(?:l)?)?)?)?)?\b}",
             "",
-            &input.borrow().to_input_string(),
+            &Self::input_to_string(&*input.borrow())?,
             1,
         )?;
         self.get_application()?.reset_composer();
 
-        Ok(StringInput::new(&new_input_str))
+        Ok(StringInput::new(&new_input_str)?)
     }
 
     pub fn is_proxy_command(&self) -> bool {
diff --git a/crates/shirabe/src/command/home_command.rs b/crates/shirabe/src/command/home_command.rs
index 6ddf0ca..029eaab 100644
--- a/crates/shirabe/src/command/home_command.rs
+++ b/crates/shirabe/src/command/home_command.rs
@@ -78,7 +78,7 @@ impl HomeCommand {
 
         let packages: Vec<String> = input
             .borrow()
-            .get_argument("packages")
+            .get_argument("packages")?
             .as_list()
             .map(|l| {
                 l.iter()
@@ -98,10 +98,14 @@ impl HomeCommand {
 
         let show_homepage = input
             .borrow()
-            .get_option("homepage")
+            .get_option("homepage")?
+            .as_bool()
+            .unwrap_or(false);
+        let show_only = input
+            .borrow()
+            .get_option("show")?
             .as_bool()
             .unwrap_or(false);
-        let show_only = input.borrow().get_option("show").as_bool().unwrap_or(false);
 
         for package_name in &packages {
             let mut handled = false;
diff --git a/crates/shirabe/src/command/init_command.rs b/crates/shirabe/src/command/init_command.rs
index 1bafd74..aea9faf 100644
--- a/crates/shirabe/src/command/init_command.rs
+++ b/crates/shirabe/src/command/init_command.rs
@@ -5,6 +5,7 @@ use anyhow::Result;
 use indexmap::IndexMap;
 use shirabe_external_packages::composer::pcre::{CaptureKey, Preg};
 use shirabe_external_packages::composer::spdx_licenses::SpdxLicenses;
+use shirabe_external_packages::symfony::console::helper::FormatBlockMessages;
 use shirabe_external_packages::symfony::console::helper::FormatterHelper;
 use shirabe_external_packages::symfony::console::input::ArrayInput;
 use shirabe_external_packages::symfony::console::input::InputInterface;
@@ -189,7 +190,7 @@ impl InitCommand {
 
         let repositories: Vec<String> = input
             .borrow()
-            .get_option("repository")
+            .get_option("repository")?
             .as_list()
             .map(|l| {
                 l.iter()
@@ -287,7 +288,7 @@ impl InitCommand {
             autoload_path = Some(ap.clone());
             let name = input
                 .borrow()
-                .get_option("name")
+                .get_option("name")?
                 .as_string()
                 .unwrap_or("")
                 .to_string();
@@ -395,7 +396,7 @@ impl InitCommand {
         if autoload_path.is_some() {
             let name = input
                 .borrow()
-                .get_option("name")
+                .get_option("name")?
                 .as_string()
                 .unwrap_or("")
                 .to_string();
@@ -420,11 +421,11 @@ impl InitCommand {
         &mut self,
         input: std::rc::Rc<std::cell::RefCell<dyn InputInterface>>,
         output: std::rc::Rc<std::cell::RefCell<dyn OutputInterface>>,
-    ) {
-        self.initialize(input.clone(), output);
+    ) -> anyhow::Result<()> {
+        self.initialize(input.clone(), output)?;
 
         if !input.borrow().is_interactive() {
-            if input.borrow().get_option("name").is_null() {
+            if input.borrow().get_option("name")?.is_null() {
                 let name = self.get_default_package_name();
                 input
                     .borrow_mut()
@@ -432,7 +433,7 @@ impl InitCommand {
                     .expect("name option is defined");
             }
 
-            if input.borrow().get_option("author").is_null() {
+            if input.borrow().get_option("author")?.is_null() {
                 let author = self.get_default_author();
                 input
                     .borrow_mut()
@@ -440,6 +441,8 @@ impl InitCommand {
                     .expect("author option is defined");
             }
         }
+
+        Ok(())
     }
 
     pub(crate) fn interact(
@@ -459,7 +462,7 @@ impl InitCommand {
         // initialize repos if configured
         let repositories: Vec<String> = input
             .borrow()
-            .get_option("repository")
+            .get_option("repository")?
             .as_list()
             .map(|l| {
                 l.iter()
@@ -532,7 +535,9 @@ impl InitCommand {
             &format!(
                 "\n{}\n",
                 formatter.format_block(
-                    &["Welcome to the Composer config generator"],
+                    FormatBlockMessages::String(
+                        "Welcome to the Composer config generator".to_string(),
+                    ),
                     "bg=blue;fg=white",
                     true,
                 )
@@ -550,7 +555,7 @@ impl InitCommand {
 
         let mut name = input
             .borrow()
-            .get_option("name")
+            .get_option("name")?
             .as_string()
             .map(|s| s.to_string())
             .unwrap_or_else(|| self.get_default_package_name());
@@ -598,7 +603,7 @@ impl InitCommand {
 
         let description = input
             .borrow()
-            .get_option("description")
+            .get_option("description")?
             .as_string()
             .map(|s| s.to_string());
         let description_default = description.clone();
@@ -615,7 +620,7 @@ impl InitCommand {
 
         let author = input
             .borrow()
-            .get_option("author")
+            .get_option("author")?
             .as_string()
             .map(|s| s.to_string())
             .unwrap_or_else(|| self.get_default_author().unwrap_or_default());
@@ -663,7 +668,7 @@ impl InitCommand {
 
         let minimum_stability = input
             .borrow()
-            .get_option("stability")
+            .get_option("stability")?
             .as_string()
             .map(|s| s.to_string());
         let minimum_stability_default = minimum_stability.clone();
@@ -710,7 +715,7 @@ impl InitCommand {
             .borrow_mut()
             .set_option("stability", minimum_stability_value);
 
-        let type_val = input.borrow().get_option("type");
+        let type_val = input.borrow().get_option("type")?;
         let type_str = type_val.as_string().unwrap_or("").to_string();
         let mut type_value = io.ask(
             format!(
@@ -726,7 +731,7 @@ impl InitCommand {
 
         let mut license = input
             .borrow()
-            .get_option("license")
+            .get_option("license")?
             .as_string()
             .map(|s| s.to_string());
         if license.is_none() {
@@ -792,7 +797,7 @@ impl InitCommand {
         let question = "Would you like to define your dependencies (require) interactively [<comment>yes</comment>]? ".to_string();
         let require: Vec<String> = input
             .borrow()
-            .get_option("require")
+            .get_option("require")?
             .as_list()
             .map(|l| {
                 l.iter()
@@ -826,7 +831,7 @@ impl InitCommand {
         let question = "Would you like to define your dev dependencies (require-dev) interactively [<comment>yes</comment>]? ".to_string();
         let require_dev: Vec<String> = input
             .borrow()
-            .get_option("require-dev")
+            .get_option("require-dev")?
             .as_list()
             .map(|l| {
                 l.iter()
@@ -861,14 +866,14 @@ impl InitCommand {
         // --autoload - input and validation
         let mut autoload = input
             .borrow()
-            .get_option("autoload")
+            .get_option("autoload")?
             .as_string()
             .map(|s| s.to_string())
             .filter(|s| !s.is_empty())
             .unwrap_or_else(|| "src/".to_string());
         let name_str = input
             .borrow()
-            .get_option("name")
+            .get_option("name")?
             .as_string()
             .unwrap_or("")
             .to_string();
@@ -1098,7 +1103,7 @@ impl InitCommand {
             // TODO(phase-c): Application::find returns PhpMixed (the Symfony command registry is a
             // todo!() stub), so the resolved command's run() cannot be invoked until the typed
             // command registry is modelled.
-            let _ = ArrayInput::new(IndexMap::new(), None);
+            let _ = ArrayInput::new(vec![], None);
             let _ = output;
             Ok(())
         });
@@ -1121,7 +1126,7 @@ impl InitCommand {
             // PHP: $command->run(new ArrayInput([]), $output);
             // TODO(phase-c): same blocker as update_dependencies — Application::find returns
             // PhpMixed (Symfony command registry todo!() stub), so run() cannot be invoked.
-            let _ = ArrayInput::new(IndexMap::new(), None);
+            let _ = ArrayInput::new(vec![], None);
             let _ = output;
             Ok(())
         });
diff --git a/crates/shirabe/src/command/install_command.rs b/crates/shirabe/src/command/install_command.rs
index f491820..182f855 100644
--- a/crates/shirabe/src/command/install_command.rs
+++ b/crates/shirabe/src/command/install_command.rs
@@ -69,19 +69,19 @@ impl InstallCommand {
     ) -> Result<i64> {
         let io = self.get_io().clone();
 
-        if input.borrow().get_option("dev").as_bool().unwrap_or(false) {
+        if input.borrow().get_option("dev")?.as_bool().unwrap_or(false) {
             io.write_error("<warning>You are using the deprecated option \"--dev\". It has no effect and will break in Composer 3.</warning>");
         }
         if input
             .borrow()
-            .get_option("no-suggest")
+            .get_option("no-suggest")?
             .as_bool()
             .unwrap_or(false)
         {
             io.write_error("<warning>You are using the deprecated option \"--no-suggest\". It has no effect and will break in Composer 3.</warning>");
         }
 
-        let args = input.borrow().get_argument("packages");
+        let args = input.borrow().get_argument("packages")?;
         let args_vec: Vec<String> = args
             .as_list()
             .map(|l| {
@@ -101,7 +101,7 @@ impl InstallCommand {
 
         if input
             .borrow()
-            .get_option("no-install")
+            .get_option("no-install")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -132,7 +132,7 @@ impl InstallCommand {
 
         let optimize = input
             .borrow()
-            .get_option("optimize-autoloader")
+            .get_option("optimize-autoloader")?
             .as_bool()
             .unwrap_or(false)
             || config
@@ -142,7 +142,7 @@ impl InstallCommand {
                 .unwrap_or(false);
         let authoritative = input
             .borrow()
-            .get_option("classmap-authoritative")
+            .get_option("classmap-authoritative")?
             .as_bool()
             .unwrap_or(false)
             || config
@@ -152,13 +152,13 @@ impl InstallCommand {
                 .unwrap_or(false);
         let apcu_prefix = input
             .borrow()
-            .get_option("apcu-autoloader-prefix")
+            .get_option("apcu-autoloader-prefix")?
             .as_string()
             .map(|s| s.to_string());
         let apcu = apcu_prefix.is_some()
             || input
                 .borrow()
-                .get_option("apcu-autoloader")
+                .get_option("apcu-autoloader")?
                 .as_bool()
                 .unwrap_or(false)
             || config
@@ -173,7 +173,7 @@ impl InstallCommand {
             .set_output_progress(
                 !input
                     .borrow()
-                    .get_option("no-progress")
+                    .get_option("no-progress")?
                     .as_bool()
                     .unwrap_or(false),
             );
@@ -182,21 +182,21 @@ impl InstallCommand {
             .set_dry_run(
                 input
                     .borrow()
-                    .get_option("dry-run")
+                    .get_option("dry-run")?
                     .as_bool()
                     .unwrap_or(false),
             )
             .set_download_only(
                 input
                     .borrow()
-                    .get_option("download-only")
+                    .get_option("download-only")?
                     .as_bool()
                     .unwrap_or(false),
             )
             .set_verbose(
                 input
                     .borrow()
-                    .get_option("verbose")
+                    .get_option("verbose")?
                     .as_bool()
                     .unwrap_or(false),
             )
@@ -205,14 +205,14 @@ impl InstallCommand {
             .set_dev_mode(
                 !input
                     .borrow()
-                    .get_option("no-dev")
+                    .get_option("no-dev")?
                     .as_bool()
                     .unwrap_or(false),
             )
             .set_dump_autoloader(
                 !input
                     .borrow()
-                    .get_option("no-autoloader")
+                    .get_option("no-autoloader")?
                     .as_bool()
                     .unwrap_or(false),
             )
@@ -226,14 +226,14 @@ impl InstallCommand {
             .set_error_on_audit(
                 input
                     .borrow()
-                    .get_option("audit")
+                    .get_option("audit")?
                     .as_bool()
                     .unwrap_or(false),
             );
 
         if input
             .borrow()
-            .get_option("no-plugins")
+            .get_option("no-plugins")?
             .as_bool()
             .unwrap_or(false)
         {
diff --git a/crates/shirabe/src/command/licenses_command.rs b/crates/shirabe/src/command/licenses_command.rs
index b8fa01d..5be2b41 100644
--- a/crates/shirabe/src/command/licenses_command.rs
+++ b/crates/shirabe/src/command/licenses_command.rs
@@ -8,6 +8,7 @@ use shirabe_external_packages::symfony::console::formatter::OutputFormatter;
 use shirabe_external_packages::symfony::console::helper::Table;
 use shirabe_external_packages::symfony::console::input::InputInterface;
 use shirabe_external_packages::symfony::console::output::OutputInterface;
+use shirabe_external_packages::symfony::console::style::StyleInterface;
 use shirabe_external_packages::symfony::console::style::SymfonyStyle;
 use shirabe_php_shim::{PhpMixed, RuntimeException, UnexpectedValueException};
 
@@ -98,7 +99,7 @@ impl LicensesCommand {
 
         let packages = if input
             .borrow()
-            .get_option("locked")
+            .get_option("locked")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -112,7 +113,7 @@ impl LicensesCommand {
             }
             let no_dev = input
                 .borrow()
-                .get_option("no-dev")
+                .get_option("no-dev")?
                 .as_bool()
                 .unwrap_or(false);
             let repo = locker.get_locked_repository(!no_dev)?;
@@ -124,7 +125,7 @@ impl LicensesCommand {
 
             if input
                 .borrow()
-                .get_option("no-dev")
+                .get_option("no-dev")?
                 .as_bool()
                 .unwrap_or(false)
             {
@@ -146,7 +147,7 @@ impl LicensesCommand {
 
         let format = input
             .borrow()
-            .get_option("format")
+            .get_option("format")?
             .as_string()
             .unwrap_or("text")
             .to_string();
@@ -171,7 +172,7 @@ impl LicensesCommand {
                 io.write("");
 
                 let mut table = Table::new(output);
-                table.set_style("compact");
+                table.set_style(shirabe_php_shim::PhpMixed::from("compact"))??;
                 table.set_headers(vec![
                     PhpMixed::String("Name".to_string()),
                     PhpMixed::String("Version".to_string()),
@@ -182,7 +183,7 @@ impl LicensesCommand {
                     let name = if let Some(link) = link {
                         format!(
                             "<href={}>{}</>",
-                            OutputFormatter::escape(&link),
+                            OutputFormatter::escape(&link)?,
                             package.get_pretty_name()
                         )
                     } else {
diff --git a/crates/shirabe/src/command/outdated_command.rs b/crates/shirabe/src/command/outdated_command.rs
index 8eb67e6..c7ea773 100644
--- a/crates/shirabe/src/command/outdated_command.rs
+++ b/crates/shirabe/src/command/outdated_command.rs
@@ -62,7 +62,7 @@ impl OutdatedCommand {
 
         if input
             .borrow()
-            .get_option("no-interaction")
+            .get_option("no-interaction")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -70,7 +70,7 @@ impl OutdatedCommand {
         }
         if input
             .borrow()
-            .get_option("no-plugins")
+            .get_option("no-plugins")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -78,7 +78,7 @@ impl OutdatedCommand {
         }
         if input
             .borrow()
-            .get_option("no-scripts")
+            .get_option("no-scripts")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -86,30 +86,30 @@ impl OutdatedCommand {
         }
         if input
             .borrow()
-            .get_option("no-cache")
+            .get_option("no-cache")?
             .as_bool()
             .unwrap_or(false)
         {
             args.insert("--no-cache".to_string(), PhpMixed::Bool(true));
         }
-        if !input.borrow().get_option("all").as_bool().unwrap_or(false) {
+        if !input.borrow().get_option("all")?.as_bool().unwrap_or(false) {
             args.insert("--outdated".to_string(), PhpMixed::Bool(true));
         }
         if input
             .borrow()
-            .get_option("direct")
+            .get_option("direct")?
             .as_bool()
             .unwrap_or(false)
         {
             args.insert("--direct".to_string(), PhpMixed::Bool(true));
         }
-        let package_arg = input.borrow().get_argument("package");
+        let package_arg = input.borrow().get_argument("package")?;
         if !matches!(package_arg, PhpMixed::Null) {
             args.insert("package".to_string(), package_arg);
         }
         if input
             .borrow()
-            .get_option("strict")
+            .get_option("strict")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -117,7 +117,7 @@ impl OutdatedCommand {
         }
         if input
             .borrow()
-            .get_option("major-only")
+            .get_option("major-only")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -125,7 +125,7 @@ impl OutdatedCommand {
         }
         if input
             .borrow()
-            .get_option("minor-only")
+            .get_option("minor-only")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -133,7 +133,7 @@ impl OutdatedCommand {
         }
         if input
             .borrow()
-            .get_option("patch-only")
+            .get_option("patch-only")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -141,7 +141,7 @@ impl OutdatedCommand {
         }
         if input
             .borrow()
-            .get_option("locked")
+            .get_option("locked")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -149,7 +149,7 @@ impl OutdatedCommand {
         }
         if input
             .borrow()
-            .get_option("no-dev")
+            .get_option("no-dev")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -157,7 +157,7 @@ impl OutdatedCommand {
         }
         if input
             .borrow()
-            .get_option("sort-by-age")
+            .get_option("sort-by-age")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -165,20 +165,25 @@ impl OutdatedCommand {
         }
         args.insert(
             "--ignore-platform-req".to_string(),
-            input.borrow().get_option("ignore-platform-req"),
+            input.borrow().get_option("ignore-platform-req")?,
         );
         if input
             .borrow()
-            .get_option("ignore-platform-reqs")
+            .get_option("ignore-platform-reqs")?
             .as_bool()
             .unwrap_or(false)
         {
             args.insert("--ignore-platform-reqs".to_string(), PhpMixed::Bool(true));
         }
-        args.insert("--format".to_string(), input.borrow().get_option("format"));
-        args.insert("--ignore".to_string(), input.borrow().get_option("ignore"));
+        args.insert("--format".to_string(), input.borrow().get_option("format")?);
+        args.insert("--ignore".to_string(), input.borrow().get_option("ignore")?);
 
-        let input = ArrayInput::new(args, None);
+        let input = ArrayInput::new(
+            args.into_iter()
+                .map(|(k, v)| (PhpMixed::String(k), v))
+                .collect(),
+            None,
+        )?;
 
         let input: std::rc::Rc<std::cell::RefCell<dyn InputInterface>> =
             std::rc::Rc::new(std::cell::RefCell::new(input));
diff --git a/crates/shirabe/src/command/package_discovery_trait.rs b/crates/shirabe/src/command/package_discovery_trait.rs
index b5e6cd5..aa12719 100644
--- a/crates/shirabe/src/command/package_discovery_trait.rs
+++ b/crates/shirabe/src/command/package_discovery_trait.rs
@@ -123,6 +123,7 @@ pub trait PackageDiscoveryTrait {
                 &input
                     .borrow()
                     .get_option("stability")
+                    .expect("get_minimum_stability returns String, not Result; stability option is guaranteed present by the has_option guard above")
                     .as_string()
                     .map(|s| s.to_string())
                     .unwrap_or_else(|| "stable".to_string()),
diff --git a/crates/shirabe/src/command/reinstall_command.rs b/crates/shirabe/src/command/reinstall_command.rs
index e6cbac1..48f48a5 100644
--- a/crates/shirabe/src/command/reinstall_command.rs
+++ b/crates/shirabe/src/command/reinstall_command.rs
@@ -74,9 +74,9 @@ impl ReinstallCommand {
         let mut packages_to_reinstall: Vec<crate::package::PackageInterfaceHandle> = vec![];
         let mut package_names_to_reinstall: Vec<String> = vec![];
 
-        let type_option = input.borrow().get_option("type");
+        let type_option = input.borrow().get_option("type")?;
         let type_count = type_option.as_list().map_or(0, |l| l.len());
-        let packages_arg = input.borrow().get_argument("packages");
+        let packages_arg = input.borrow().get_argument("packages")?;
         let packages_count = packages_arg.as_list().map_or(0, |l| l.len());
 
         if type_count > 0 {
@@ -198,13 +198,13 @@ impl ReinstallCommand {
         installation_manager.borrow_mut().set_output_progress(
             !input
                 .borrow()
-                .get_option("no-progress")
+                .get_option("no-progress")?
                 .as_bool()
                 .unwrap_or(false),
         );
         if input
             .borrow()
-            .get_option("no-plugins")
+            .get_option("no-plugins")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -245,13 +245,13 @@ impl ReinstallCommand {
 
         if !input
             .borrow()
-            .get_option("no-autoloader")
+            .get_option("no-autoloader")?
             .as_bool()
             .unwrap_or(false)
         {
             let optimize = input
                 .borrow()
-                .get_option("optimize-autoloader")
+                .get_option("optimize-autoloader")?
                 .as_bool()
                 .unwrap_or(false)
                 || config
@@ -261,7 +261,7 @@ impl ReinstallCommand {
                     .unwrap_or(false);
             let authoritative = input
                 .borrow()
-                .get_option("classmap-authoritative")
+                .get_option("classmap-authoritative")?
                 .as_bool()
                 .unwrap_or(false)
                 || config
@@ -271,13 +271,13 @@ impl ReinstallCommand {
                     .unwrap_or(false);
             let apcu_prefix = input
                 .borrow()
-                .get_option("apcu-autoloader-prefix")
+                .get_option("apcu-autoloader-prefix")?
                 .as_string()
                 .map(|s| s.to_string());
             let apcu = apcu_prefix.is_some()
                 || input
                     .borrow()
-                    .get_option("apcu-autoloader")
+                    .get_option("apcu-autoloader")?
                     .as_bool()
                     .unwrap_or(false)
                 || config
diff --git a/crates/shirabe/src/command/remove_command.rs b/crates/shirabe/src/command/remove_command.rs
index 6cd2424..b81b7ca 100644
--- a/crates/shirabe/src/command/remove_command.rs
+++ b/crates/shirabe/src/command/remove_command.rs
@@ -163,25 +163,27 @@ impl RemoveCommand {
     ) -> anyhow::Result<i64> {
         if input
             .borrow()
-            .get_argument("packages")
+            .get_argument("packages")?
             .as_list()
             .map(|l| l.is_empty())
             .unwrap_or(true)
             && !input
                 .borrow()
-                .get_option("unused")
+                .get_option("unused")?
                 .as_bool()
                 .unwrap_or(false)
         {
-            return Err(anyhow::anyhow!(InvalidArgumentException {
-                message: "Not enough arguments (missing: \"packages\").".to_string(),
-                code: 0,
-            }));
+            return Err(anyhow::anyhow!(InvalidArgumentException(
+                shirabe_php_shim::InvalidArgumentException {
+                    message: "Not enough arguments (missing: \"packages\").".to_string(),
+                    code: 0,
+                }
+            )));
         }
 
         let mut packages: Vec<String> = input
             .borrow()
-            .get_argument("packages")
+            .get_argument("packages")?
             .as_list()
             .map(|l| {
                 l.iter()
@@ -192,7 +194,7 @@ impl RemoveCommand {
 
         if input
             .borrow()
-            .get_option("unused")
+            .get_option("unused")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -276,12 +278,12 @@ impl RemoveCommand {
             false,
         );
 
-        let r#type = if input.borrow().get_option("dev").as_bool().unwrap_or(false) {
+        let r#type = if input.borrow().get_option("dev")?.as_bool().unwrap_or(false) {
             "require-dev"
         } else {
             "require"
         };
-        let alt_type = if !input.borrow().get_option("dev").as_bool().unwrap_or(false) {
+        let alt_type = if !input.borrow().get_option("dev")?.as_bool().unwrap_or(false) {
             "require-dev"
         } else {
             "require"
@@ -290,7 +292,7 @@ impl RemoveCommand {
 
         if input
             .borrow()
-            .get_option("update-with-dependencies")
+            .get_option("update-with-dependencies")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -317,7 +319,7 @@ impl RemoveCommand {
 
         let dry_run = input
             .borrow()
-            .get_option("dry-run")
+            .get_option("dry-run")?
             .as_bool()
             .unwrap_or(false);
         let mut to_remove: IndexMap<String, Vec<String>> = IndexMap::new();
@@ -447,7 +449,7 @@ impl RemoveCommand {
 
         if input
             .borrow()
-            .get_option("no-update")
+            .get_option("no-update")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -534,7 +536,7 @@ impl RemoveCommand {
             .set_output_progress(
                 !input
                     .borrow()
-                    .get_option("no-progress")
+                    .get_option("no-progress")?
                     .as_bool()
                     .unwrap_or(false),
             );
@@ -543,12 +545,12 @@ impl RemoveCommand {
 
         let update_dev_mode = !input
             .borrow()
-            .get_option("update-no-dev")
+            .get_option("update-no-dev")?
             .as_bool()
             .unwrap_or(false);
         let optimize = input
             .borrow()
-            .get_option("optimize-autoloader")
+            .get_option("optimize-autoloader")?
             .as_bool()
             .unwrap_or(false)
             || composer
@@ -559,7 +561,7 @@ impl RemoveCommand {
                 .unwrap_or(false);
         let authoritative = input
             .borrow()
-            .get_option("classmap-authoritative")
+            .get_option("classmap-authoritative")?
             .as_bool()
             .unwrap_or(false)
             || composer
@@ -570,13 +572,13 @@ impl RemoveCommand {
                 .unwrap_or(false);
         let apcu_prefix = input
             .borrow()
-            .get_option("apcu-autoloader-prefix")
+            .get_option("apcu-autoloader-prefix")?
             .as_string()
             .map(|s| s.to_string());
         let apcu = apcu_prefix.is_some()
             || input
                 .borrow()
-                .get_option("apcu-autoloader")
+                .get_option("apcu-autoloader")?
                 .as_bool()
                 .unwrap_or(false)
             || composer
@@ -587,7 +589,7 @@ impl RemoveCommand {
                 .unwrap_or(false);
         let minimal_changes = input
             .borrow()
-            .get_option("minimal-changes")
+            .get_option("minimal-changes")?
             .as_bool()
             .unwrap_or(false)
             || composer
@@ -602,12 +604,12 @@ impl RemoveCommand {
         let mut flags = String::new();
         if input
             .borrow()
-            .get_option("update-with-all-dependencies")
+            .get_option("update-with-all-dependencies")?
             .as_bool()
             .unwrap_or(false)
             || input
                 .borrow()
-                .get_option("with-all-dependencies")
+                .get_option("with-all-dependencies")?
                 .as_bool()
                 .unwrap_or(false)
         {
@@ -616,7 +618,7 @@ impl RemoveCommand {
             flags += " --with-all-dependencies";
         } else if input
             .borrow()
-            .get_option("no-update-with-dependencies")
+            .get_option("no-update-with-dependencies")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -633,7 +635,7 @@ impl RemoveCommand {
         install.set_verbose(
             input
                 .borrow()
-                .get_option("verbose")
+                .get_option("verbose")?
                 .as_bool()
                 .unwrap_or(false),
         );
@@ -645,7 +647,7 @@ impl RemoveCommand {
         install.set_install(
             !input
                 .borrow()
-                .get_option("no-install")
+                .get_option("no-install")?
                 .as_bool()
                 .unwrap_or(false),
         );
diff --git a/crates/shirabe/src/command/repository_command.rs b/crates/shirabe/src/command/repository_command.rs
index a44df0d..3e0292a 100644
--- a/crates/shirabe/src/command/repository_command.rs
+++ b/crates/shirabe/src/command/repository_command.rs
@@ -74,24 +74,24 @@ impl RepositoryCommand {
         let action = strtolower(
             &input
                 .borrow()
-                .get_argument("action")
+                .get_argument("action")?
                 .as_string()
                 .unwrap_or("")
                 .to_string(),
         );
         let name = input
             .borrow()
-            .get_argument("name")
+            .get_argument("name")?
             .as_string()
             .map(|s| s.to_string());
         let arg1 = input
             .borrow()
-            .get_argument("arg1")
+            .get_argument("arg1")?
             .as_string()
             .map(|s| s.to_string());
         let arg2 = input
             .borrow()
-            .get_argument("arg2")
+            .get_argument("arg2")?
             .as_string()
             .map(|s| s.to_string());
 
@@ -154,12 +154,12 @@ impl RepositoryCommand {
 
                 let before = input
                     .borrow()
-                    .get_option("before")
+                    .get_option("before")?
                     .as_string()
                     .map(|s| s.to_string());
                 let after = input
                     .borrow()
-                    .get_option("after")
+                    .get_option("after")?
                     .as_string()
                     .map(|s| s.to_string());
                 if before.is_some() && after.is_some() {
@@ -190,7 +190,7 @@ impl RepositoryCommand {
 
                 let append = input
                     .borrow()
-                    .get_option("append")
+                    .get_option("append")?
                     .as_bool()
                     .unwrap_or(false);
                 self.config_source.as_mut().unwrap().add_repository(
@@ -291,7 +291,7 @@ impl RepositoryCommand {
                 if ["packagist", "packagist.org"].contains(&name_str) {
                     let append = input
                         .borrow()
-                        .get_option("append")
+                        .get_option("append")?
                         .as_bool()
                         .unwrap_or(false);
                     self.config_source.as_mut().unwrap().add_repository(
diff --git a/crates/shirabe/src/command/require_command.rs b/crates/shirabe/src/command/require_command.rs
index 3d15f86..dd91524 100644
--- a/crates/shirabe/src/command/require_command.rs
+++ b/crates/shirabe/src/command/require_command.rs
@@ -163,7 +163,7 @@ impl RequireCommand {
 
         if input
             .borrow()
-            .get_option("no-suggest")
+            .get_option("no-suggest")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -240,7 +240,7 @@ impl RequireCommand {
             return Ok(1);
         }
 
-        if input.borrow().get_option("fixed").as_bool() == Some(true) {
+        if input.borrow().get_option("fixed")?.as_bool() == Some(true) {
             let config = self.json.as_ref().unwrap().borrow_mut().read()?;
 
             let package_type = if empty(&config.get("type").cloned().unwrap_or(PhpMixed::Null)) {
@@ -255,7 +255,7 @@ impl RequireCommand {
 
             /// @see https://github.com/composer/composer/pull/8313#issuecomment-532637955
             if package_type != "project"
-                && !input.borrow().get_option("dev").as_bool().unwrap_or(false)
+                && !input.borrow().get_option("dev")?.as_bool().unwrap_or(false)
             {
                 self.get_io().write_error3("<error>The \"--fixed\" option is only allowed for packages with a \"project\" type or for dev dependencies to prevent possible misuses.</error>", true, io_interface::NORMAL);
 
@@ -301,7 +301,7 @@ impl RequireCommand {
             output.clone(),
             input
                 .borrow()
-                .get_argument("packages")
+                .get_argument("packages")?
                 .as_list()
                 .map(|l| {
                     l.iter()
@@ -314,12 +314,12 @@ impl RequireCommand {
             // if there is no update, we need to use the best possible version constraint directly as we cannot rely on the solver to guess the best constraint
             input
                 .borrow()
-                .get_option("no-update")
+                .get_option("no-update")?
                 .as_bool()
                 .unwrap_or(false),
             input
                 .borrow()
-                .get_option("fixed")
+                .get_option("fixed")?
                 .as_bool()
                 .unwrap_or(false),
         );
@@ -346,7 +346,7 @@ impl RequireCommand {
 
         let mut requirements = self.format_requirements(requirements)?;
 
-        if !input.borrow().get_option("dev").as_bool().unwrap_or(false)
+        if !input.borrow().get_option("dev")?.as_bool().unwrap_or(false)
             && self.get_io().is_interactive()
             && !composer.is_global()
         {
@@ -422,12 +422,12 @@ impl RequireCommand {
             // unset($devPackages, $pkgDevTags);
         }
 
-        let mut require_key = if input.borrow().get_option("dev").as_bool().unwrap_or(false) {
+        let mut require_key = if input.borrow().get_option("dev")?.as_bool().unwrap_or(false) {
             "require-dev"
         } else {
             "require"
         };
-        let mut remove_key = if input.borrow().get_option("dev").as_bool().unwrap_or(false) {
+        let mut remove_key = if input.borrow().get_option("dev")?.as_bool().unwrap_or(false) {
             "require"
         } else {
             "require-dev"
@@ -470,7 +470,7 @@ impl RequireCommand {
                         PhpMixed::String(package.clone()),
                         PhpMixed::String(remove_key.to_string()),
                         PhpMixed::String(
-                            if input.borrow().get_option("dev").as_bool().unwrap_or(false) {
+                            if input.borrow().get_option("dev")?.as_bool().unwrap_or(false) {
                                 "with"
                             } else {
                                 "without"
@@ -499,7 +499,7 @@ impl RequireCommand {
                     let q2 = sprintf(
                         "<info>Do you want to re-run the command %s --dev?</info> [<comment>yes</comment>]? ",
                         &[PhpMixed::String(
-                            if input.borrow().get_option("dev").as_bool().unwrap_or(false) {
+                            if input.borrow().get_option("dev")?.as_bool().unwrap_or(false) {
                                 "without"
                             } else {
                                 "with"
@@ -521,7 +521,7 @@ impl RequireCommand {
 
         let sort_packages = input
             .borrow()
-            .get_option("sort-packages")
+            .get_option("sort-packages")?
             .as_bool()
             .unwrap_or(false)
             || composer
@@ -551,7 +551,7 @@ impl RequireCommand {
 
         if !input
             .borrow()
-            .get_option("dry-run")
+            .get_option("dry-run")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -573,7 +573,7 @@ impl RequireCommand {
 
         if input
             .borrow()
-            .get_option("no-update")
+            .get_option("no-update")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -596,7 +596,7 @@ impl RequireCommand {
         );
         let dry_run = input
             .borrow()
-            .get_option("dry-run")
+            .get_option("dry-run")?
             .as_bool()
             .unwrap_or(false);
 
@@ -611,7 +611,7 @@ impl RequireCommand {
                         dry_run,
                         input
                             .borrow()
-                            .get_option("fixed")
+                            .get_option("fixed")?
                             .as_bool()
                             .unwrap_or(false),
                     )?
@@ -752,7 +752,7 @@ impl RequireCommand {
 
         if input
             .borrow()
-            .get_option("dry-run")
+            .get_option("dry-run")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -804,12 +804,12 @@ impl RequireCommand {
 
         let update_dev_mode = !input
             .borrow()
-            .get_option("update-no-dev")
+            .get_option("update-no-dev")?
             .as_bool()
             .unwrap_or(false);
         let optimize = input
             .borrow()
-            .get_option("optimize-autoloader")
+            .get_option("optimize-autoloader")?
             .as_bool()
             .unwrap_or(false)
             || composer
@@ -820,7 +820,7 @@ impl RequireCommand {
                 .unwrap_or(false);
         let authoritative = input
             .borrow()
-            .get_option("classmap-authoritative")
+            .get_option("classmap-authoritative")?
             .as_bool()
             .unwrap_or(false)
             || composer
@@ -831,13 +831,13 @@ impl RequireCommand {
                 .unwrap_or(false);
         let apcu_prefix = input
             .borrow()
-            .get_option("apcu-autoloader-prefix")
+            .get_option("apcu-autoloader-prefix")?
             .as_string()
             .map(|s| s.to_string());
         let apcu = apcu_prefix.is_some()
             || input
                 .borrow()
-                .get_option("apcu-autoloader")
+                .get_option("apcu-autoloader")?
                 .as_bool()
                 .unwrap_or(false)
             || composer
@@ -848,7 +848,7 @@ impl RequireCommand {
                 .unwrap_or(false);
         let minimal_changes = input
             .borrow()
-            .get_option("minimal-changes")
+            .get_option("minimal-changes")?
             .as_bool()
             .unwrap_or(false)
             || composer
@@ -862,12 +862,12 @@ impl RequireCommand {
         let mut flags = String::new();
         if input
             .borrow()
-            .get_option("update-with-all-dependencies")
+            .get_option("update-with-all-dependencies")?
             .as_bool()
             .unwrap_or(false)
             || input
                 .borrow()
-                .get_option("with-all-dependencies")
+                .get_option("with-all-dependencies")?
                 .as_bool()
                 .unwrap_or(false)
         {
@@ -876,12 +876,12 @@ impl RequireCommand {
             flags += " --with-all-dependencies";
         } else if input
             .borrow()
-            .get_option("update-with-dependencies")
+            .get_option("update-with-dependencies")?
             .as_bool()
             .unwrap_or(false)
             || input
                 .borrow()
-                .get_option("with-dependencies")
+                .get_option("with-dependencies")?
                 .as_bool()
                 .unwrap_or(false)
         {
@@ -918,7 +918,7 @@ impl RequireCommand {
             .set_output_progress(
                 !input
                     .borrow()
-                    .get_option("no-progress")
+                    .get_option("no-progress")?
                     .as_bool()
                     .unwrap_or(false),
             );
@@ -935,14 +935,14 @@ impl RequireCommand {
             .set_dry_run(
                 input
                     .borrow()
-                    .get_option("dry-run")
+                    .get_option("dry-run")?
                     .as_bool()
                     .unwrap_or(false),
             )
             .set_verbose(
                 input
                     .borrow()
-                    .get_option("verbose")
+                    .get_option("verbose")?
                     .as_bool()
                     .unwrap_or(false),
             )
@@ -956,7 +956,7 @@ impl RequireCommand {
             .set_install(
                 !input
                     .borrow()
-                    .get_option("no-install")
+                    .get_option("no-install")?
                     .as_bool()
                     .unwrap_or(false),
             )
@@ -968,14 +968,14 @@ impl RequireCommand {
             .set_prefer_stable(
                 input
                     .borrow()
-                    .get_option("prefer-stable")
+                    .get_option("prefer-stable")?
                     .as_bool()
                     .unwrap_or(false),
             )
             .set_prefer_lowest(
                 input
                     .borrow()
-                    .get_option("prefer-lowest")
+                    .get_option("prefer-lowest")?
                     .as_bool()
                     .unwrap_or(false),
             )
@@ -1001,7 +1001,7 @@ impl RequireCommand {
                     self,
                     input
                         .borrow()
-                        .get_argument("packages")
+                        .get_argument("packages")?
                         .as_list()
                         .map(|l| {
                             l.iter()
diff --git a/crates/shirabe/src/command/run_script_command.rs b/crates/shirabe/src/command/run_script_command.rs
index 9a28b5f..199dbab 100644
--- a/crates/shirabe/src/command/run_script_command.rs
+++ b/crates/shirabe/src/command/run_script_command.rs
@@ -123,8 +123,12 @@ impl RunScriptCommand {
             return Ok(());
         }
 
-        if input.borrow().get_argument("script").as_string().is_some()
-            || input.borrow().get_option("list").as_bool().unwrap_or(false)
+        if input.borrow().get_argument("script")?.as_string().is_some()
+            || input
+                .borrow()
+                .get_option("list")?
+                .as_bool()
+                .unwrap_or(false)
         {
             return Ok(());
         }
@@ -154,11 +158,16 @@ impl RunScriptCommand {
         input: std::rc::Rc<std::cell::RefCell<dyn InputInterface>>,
         output: std::rc::Rc<std::cell::RefCell<dyn OutputInterface>>,
     ) -> Result<i64> {
-        if input.borrow().get_option("list").as_bool().unwrap_or(false) {
+        if input
+            .borrow()
+            .get_option("list")?
+            .as_bool()
+            .unwrap_or(false)
+        {
             return self.list_scripts(output);
         }
 
-        let script = match input.borrow().get_argument("script").as_string() {
+        let script = match input.borrow().get_argument("script")?.as_string() {
             None => {
                 return Err(RuntimeException {
                     message: "Missing required argument \"script\"".to_string(),
@@ -184,10 +193,10 @@ impl RunScriptCommand {
         let dispatcher = crate::command::composer_full(&composer)
             .get_event_dispatcher()
             .clone();
-        let dev_mode = input.borrow().get_option("dev").as_bool().unwrap_or(false)
+        let dev_mode = input.borrow().get_option("dev")?.as_bool().unwrap_or(false)
             || !input
                 .borrow()
-                .get_option("no-dev")
+                .get_option("no-dev")?
                 .as_bool()
                 .unwrap_or(false);
         let io = self.get_io();
@@ -213,7 +222,7 @@ impl RunScriptCommand {
 
         let args: Vec<String> = input
             .borrow()
-            .get_argument("args")
+            .get_argument("args")?
             .as_list()
             .map(|l| {
                 l.iter()
@@ -222,7 +231,7 @@ impl RunScriptCommand {
             })
             .unwrap_or_default();
 
-        if let Some(timeout_val) = input.borrow().get_option("timeout").as_string() {
+        if let Some(timeout_val) = input.borrow().get_option("timeout")?.as_string() {
             let timeout_str = timeout_val.to_string();
             if !timeout_str.chars().all(|c| c.is_ascii_digit()) {
                 return Err(RuntimeException {
diff --git a/crates/shirabe/src/command/script_alias_command.rs b/crates/shirabe/src/command/script_alias_command.rs
index 5c23e26..29c38cf 100644
--- a/crates/shirabe/src/command/script_alias_command.rs
+++ b/crates/shirabe/src/command/script_alias_command.rs
@@ -118,10 +118,10 @@ impl ScriptAliasCommand {
             .into());
         }
 
-        let dev_mode = input.borrow().get_option("dev").as_bool().unwrap_or(false)
+        let dev_mode = input.borrow().get_option("dev")?.as_bool().unwrap_or(false)
             || !input
                 .borrow()
-                .get_option("no-dev")
+                .get_option("no-dev")?
                 .as_bool()
                 .unwrap_or(false);
 
diff --git a/crates/shirabe/src/command/search_command.rs b/crates/shirabe/src/command/search_command.rs
index b9eacf5..b2fb1df 100644
--- a/crates/shirabe/src/command/search_command.rs
+++ b/crates/shirabe/src/command/search_command.rs
@@ -53,7 +53,7 @@ impl SearchCommand {
 
         let format = input
             .borrow()
-            .get_option("format")
+            .get_option("format")?
             .as_string()
             .map(|s| s.to_string())
             .unwrap_or_else(|| "text".to_string());
@@ -109,13 +109,13 @@ impl SearchCommand {
         let mut mode: i64 = repository_interface::SEARCH_FULLTEXT;
         if input
             .borrow()
-            .get_option("only-name")
+            .get_option("only-name")?
             .as_bool()
             .unwrap_or(false)
         {
             if input
                 .borrow()
-                .get_option("only-vendor")
+                .get_option("only-vendor")?
                 .as_bool()
                 .unwrap_or(false)
             {
@@ -128,7 +128,7 @@ impl SearchCommand {
             mode = repository_interface::SEARCH_NAME;
         } else if input
             .borrow()
-            .get_option("only-vendor")
+            .get_option("only-vendor")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -137,11 +137,11 @@ impl SearchCommand {
 
         let r#type = input
             .borrow()
-            .get_option("type")
+            .get_option("type")?
             .as_string()
             .map(|s| s.to_string());
 
-        let tokens_arg = input.borrow().get_argument("tokens");
+        let tokens_arg = input.borrow().get_argument("tokens")?;
         let token_strings: Vec<String> = tokens_arg
             .as_array()
             .map(|arr| {
@@ -182,7 +182,7 @@ impl SearchCommand {
                 if let Some(link) = link {
                     io.write(&format!(
                         "<href={}>{}</>{}{}{}",
-                        OutputFormatter::escape(link),
+                        OutputFormatter::escape(link)?,
                         result.name,
                         " ".repeat(name_length as usize - result.name.len()),
                         warning,
diff --git a/crates/shirabe/src/command/show_command.rs b/crates/shirabe/src/command/show_command.rs
index 06abec4..27bda55 100644
--- a/crates/shirabe/src/command/show_command.rs
+++ b/crates/shirabe/src/command/show_command.rs
@@ -85,25 +85,25 @@ impl ShowCommand {
         output: std::rc::Rc<std::cell::RefCell<dyn OutputInterface>>,
     ) -> anyhow::Result<i64> {
         self.version_parser = VersionParser::new();
-        if input.borrow().get_option("tree").as_bool() == Some(true) {
+        if input.borrow().get_option("tree")?.as_bool() == Some(true) {
             self.init_styles(output.clone());
         }
 
         let mut composer = self.try_composer(None, None);
 
-        if input.borrow().get_option("installed").as_bool() == Some(true)
-            && input.borrow().get_option("self").as_bool() != Some(true)
+        if input.borrow().get_option("installed")?.as_bool() == Some(true)
+            && input.borrow().get_option("self")?.as_bool() != Some(true)
         {
             self.get_io().write_error("<warning>You are using the deprecated option \"installed\". Only installed packages are shown by default now. The --all option can be used to show all packages.</warning>");
         }
 
-        if input.borrow().get_option("outdated").as_bool() == Some(true) {
+        if input.borrow().get_option("outdated")?.as_bool() == Some(true) {
             input
                 .borrow_mut()
                 .set_option("latest", PhpMixed::Bool(true));
         } else if input
             .borrow()
-            .get_option("ignore")
+            .get_option("ignore")?
             .as_list()
             .map_or(0, |l| l.len())
             > 0
@@ -111,19 +111,19 @@ impl ShowCommand {
             self.get_io().write_error("<warning>You are using the option \"ignore\" for action other than \"outdated\", it will be ignored.</warning>");
         }
 
-        if input.borrow().get_option("direct").as_bool() == Some(true)
-            && (input.borrow().get_option("all").as_bool() == Some(true)
-                || input.borrow().get_option("available").as_bool() == Some(true)
-                || input.borrow().get_option("platform").as_bool() == Some(true))
+        if input.borrow().get_option("direct")?.as_bool() == Some(true)
+            && (input.borrow().get_option("all")?.as_bool() == Some(true)
+                || input.borrow().get_option("available")?.as_bool() == Some(true)
+                || input.borrow().get_option("platform")?.as_bool() == Some(true))
         {
             self.get_io().write_error("The --direct (-D) option is not usable in combination with --all, --platform (-p) or --available (-a)");
 
             return Ok(1);
         }
 
-        if input.borrow().get_option("tree").as_bool() == Some(true)
-            && (input.borrow().get_option("all").as_bool() == Some(true)
-                || input.borrow().get_option("available").as_bool() == Some(true))
+        if input.borrow().get_option("tree")?.as_bool() == Some(true)
+            && (input.borrow().get_option("all")?.as_bool() == Some(true)
+                || input.borrow().get_option("available")?.as_bool() == Some(true))
         {
             self.get_io().write_error("The --tree (-t) option is not usable in combination with --all or --available (-a)");
 
@@ -131,9 +131,9 @@ impl ShowCommand {
         }
 
         let only_count: usize = [
-            input.borrow().get_option("patch-only").as_bool() == Some(true),
-            input.borrow().get_option("minor-only").as_bool() == Some(true),
-            input.borrow().get_option("major-only").as_bool() == Some(true),
+            input.borrow().get_option("patch-only")?.as_bool() == Some(true),
+            input.borrow().get_option("minor-only")?.as_bool() == Some(true),
+            input.borrow().get_option("major-only")?.as_bool() == Some(true),
         ]
         .iter()
         .filter(|b| **b)
@@ -146,8 +146,8 @@ impl ShowCommand {
             return Ok(1);
         }
 
-        if input.borrow().get_option("tree").as_bool() == Some(true)
-            && input.borrow().get_option("latest").as_bool() == Some(true)
+        if input.borrow().get_option("tree")?.as_bool() == Some(true)
+            && input.borrow().get_option("latest")?.as_bool() == Some(true)
         {
             self.get_io().write_error(
                 "The --tree (-t) option is not usable in combination with --latest (-l)",
@@ -156,8 +156,8 @@ impl ShowCommand {
             return Ok(1);
         }
 
-        if input.borrow().get_option("tree").as_bool() == Some(true)
-            && input.borrow().get_option("path").as_bool() == Some(true)
+        if input.borrow().get_option("tree")?.as_bool() == Some(true)
+            && input.borrow().get_option("path")?.as_bool() == Some(true)
         {
             self.get_io().write_error(
                 "The --tree (-t) option is not usable in combination with --path (-P)",
@@ -168,7 +168,7 @@ impl ShowCommand {
 
         let format = input
             .borrow()
-            .get_option("format")
+            .get_option("format")?
             .as_string()
             .unwrap_or("text")
             .to_string();
@@ -214,20 +214,25 @@ impl ShowCommand {
         let installed_repo: RepositoryInterfaceHandle;
         let repos: RepositoryInterfaceHandle;
 
-        if input.borrow().get_option("self").as_bool() == Some(true)
-            && input.borrow().get_option("installed").as_bool() != Some(true)
-            && input.borrow().get_option("locked").as_bool() != Some(true)
+        if input.borrow().get_option("self")?.as_bool() == Some(true)
+            && input.borrow().get_option("installed")?.as_bool() != Some(true)
+            && input.borrow().get_option("locked")?.as_bool() != Some(true)
         {
             let composer = self.require_composer(None, None)?;
             let package = crate::package::RootPackageInterfaceHandle::dup(
                 composer.borrow_partial().get_package(),
             );
-            if input.borrow().get_option("name-only").as_bool() == Some(true) {
+            if input.borrow().get_option("name-only")?.as_bool() == Some(true) {
                 self.get_io().write(&package.get_name());
 
                 return Ok(0);
             }
-            if input.borrow().get_argument("package").as_string().is_some() {
+            if input
+                .borrow()
+                .get_argument("package")?
+                .as_string()
+                .is_some()
+            {
                 return Err(InvalidArgumentException {
                     message: "You cannot use --self together with a package name".to_string(),
                     code: 0,
@@ -241,14 +246,14 @@ impl ShowCommand {
                 RepositoryInterfaceHandle::new(RootPackageRepository::new(package.clone())),
             ]));
             single_package = Some(package.clone().into());
-        } else if input.borrow().get_option("platform").as_bool() == Some(true) {
+        } else if input.borrow().get_option("platform")?.as_bool() == Some(true) {
             installed_repo = RepositoryInterfaceHandle::new(InstalledRepository::new(vec![
                 platform_repo.clone().into(),
             ]));
             repos = RepositoryInterfaceHandle::new(InstalledRepository::new(vec![
                 platform_repo.clone().into(),
             ]));
-        } else if input.borrow().get_option("available").as_bool() == Some(true) {
+        } else if input.borrow().get_option("available")?.as_bool() == Some(true) {
             let mut ir = InstalledRepository::new(vec![platform_repo.clone().into()]);
             if let Some(ref composer) = composer {
                 let composer = crate::command::composer_full(composer);
@@ -281,7 +286,7 @@ impl ShowCommand {
                 ));
                 installed_repo = RepositoryInterfaceHandle::new(ir);
             }
-        } else if input.borrow().get_option("all").as_bool() == Some(true) && composer.is_some() {
+        } else if input.borrow().get_option("all")?.as_bool() == Some(true) && composer.is_some() {
             let mut composer_ref = crate::command::composer_full_mut(composer.as_ref().unwrap());
             let local_repo = composer_ref
                 .get_repository_manager()
@@ -321,7 +326,7 @@ impl ShowCommand {
                 composite_input.push(r.clone());
             }
             repos = RepositoryInterfaceHandle::new(CompositeRepository::new(composite_input));
-        } else if input.borrow().get_option("all").as_bool() == Some(true) {
+        } else if input.borrow().get_option("all")?.as_bool() == Some(true) {
             let default_repos =
                 RepositoryFactory::default_repos_with_default_manager(self.get_io())?;
             let names: Vec<String> = default_repos.keys().cloned().collect();
@@ -337,7 +342,7 @@ impl ShowCommand {
                 composite_input.push(v);
             }
             repos = RepositoryInterfaceHandle::new(CompositeRepository::new(composite_input));
-        } else if input.borrow().get_option("locked").as_bool() == Some(true) {
+        } else if input.borrow().get_option("locked")?.as_bool() == Some(true) {
             if composer.is_none()
                 || !crate::command::composer_full_mut(composer.as_ref().unwrap())
                     .get_locker()
@@ -354,9 +359,9 @@ impl ShowCommand {
             let locker_rc = composer_ref.get_locker().clone();
             let mut locker = locker_rc.borrow_mut();
             let lr = locker.get_locked_repository(
-                input.borrow().get_option("no-dev").as_bool() != Some(true),
+                input.borrow().get_option("no-dev")?.as_bool() != Some(true),
             )?;
-            if input.borrow().get_option("self").as_bool() == Some(true) {
+            if input.borrow().get_option("self")?.as_bool() == Some(true) {
                 lr.add_package(
                     crate::package::RootPackageInterfaceHandle::dup(composer_ref.get_package())
                         .into(),
@@ -386,7 +391,7 @@ impl ShowCommand {
             let root_pkg = composer_local.get_package();
 
             let root_repo: RepositoryInterfaceHandle =
-                if input.borrow().get_option("self").as_bool() == Some(true) {
+                if input.borrow().get_option("self")?.as_bool() == Some(true) {
                     RepositoryInterfaceHandle::new(RootPackageRepository::new(
                         crate::package::RootPackageInterfaceHandle::dup(
                             composer_local.get_package(),
@@ -395,7 +400,7 @@ impl ShowCommand {
                 } else {
                     RepositoryInterfaceHandle::new(InstalledArrayRepository::new()?)
                 };
-            if input.borrow().get_option("no-dev").as_bool() == Some(true) {
+            if input.borrow().get_option("no-dev")?.as_bool() == Some(true) {
                 let local_packages = composer_local
                     .get_repository_manager()
                     .borrow()
@@ -468,7 +473,7 @@ impl ShowCommand {
                 .dispatch(Some(&command_event_name), Some(&mut command_event))?;
         }
 
-        if input.borrow().get_option("latest").as_bool() == Some(true) && composer.is_none() {
+        if input.borrow().get_option("latest")?.as_bool() == Some(true) && composer.is_none() {
             self.get_io().write_error(
                 "No composer.json found in the current directory, disabling \"latest\" option",
             );
@@ -479,7 +484,7 @@ impl ShowCommand {
 
         let package_filter: Option<String> = input
             .borrow()
-            .get_argument("package")
+            .get_argument("package")?
             .as_string()
             .map(|s| s.to_string());
 
@@ -492,11 +497,11 @@ impl ShowCommand {
                     &*installed_repo.borrow(),
                     &repos,
                     pf,
-                    input.borrow().get_argument("version"),
+                    input.borrow().get_argument("version")?,
                 )?;
 
                 if let Some(ref pkg) = matched_package {
-                    if input.borrow().get_option("direct").as_bool() == Some(true) {
+                    if input.borrow().get_option("direct")?.as_bool() == Some(true) {
                         if !in_array(
                             PhpMixed::String(pkg.get_name()),
                             &PhpMixed::List(
@@ -522,7 +527,7 @@ impl ShowCommand {
                 if matched_package.is_none() {
                     let options = input.borrow().get_options();
                     let mut hint = String::new();
-                    if input.borrow().get_option("locked").as_bool() == Some(true) {
+                    if input.borrow().get_option("locked")?.as_bool() == Some(true) {
                         hint.push_str(" in lock file");
                     }
                     if options.contains_key("working-dir") {
@@ -535,12 +540,12 @@ impl ShowCommand {
                         ));
                     }
                     if PlatformRepository::is_platform_package(pf)
-                        && input.borrow().get_option("platform").as_bool() != Some(true)
+                        && input.borrow().get_option("platform")?.as_bool() != Some(true)
                     {
                         hint.push_str(", try using --platform (-p) to show platform packages");
                     }
-                    if input.borrow().get_option("all").as_bool() != Some(true)
-                        && input.borrow().get_option("available").as_bool() != Some(true)
+                    if input.borrow().get_option("all")?.as_bool() != Some(true)
+                        && input.borrow().get_option("available")?.as_bool() != Some(true)
                     {
                         hint.push_str(
                             ", try using --available (-a) to show all available packages",
@@ -562,7 +567,7 @@ impl ShowCommand {
             // assert(isset($versions));
 
             let mut exit_code: i64 = 0;
-            if input.borrow().get_option("tree").as_bool() == Some(true) {
+            if input.borrow().get_option("tree")?.as_bool() == Some(true) {
                 let array_tree = self.generate_package_tree(
                     package.clone().into(),
                     &*installed_repo.borrow(),
@@ -591,31 +596,31 @@ impl ShowCommand {
             }
 
             let mut latest_package: Option<crate::package::PackageInterfaceHandle> = None;
-            if input.borrow().get_option("latest").as_bool() == Some(true) {
+            if input.borrow().get_option("latest")?.as_bool() == Some(true) {
                 latest_package = self.find_latest_package(
                     package.clone().into(),
                     composer.as_ref().unwrap(),
                     &platform_repo,
                     input
                         .borrow()
-                        .get_option("major-only")
+                        .get_option("major-only")?
                         .as_bool()
                         .unwrap_or(false),
                     input
                         .borrow()
-                        .get_option("minor-only")
+                        .get_option("minor-only")?
                         .as_bool()
                         .unwrap_or(false),
                     input
                         .borrow()
-                        .get_option("patch-only")
+                        .get_option("patch-only")?
                         .as_bool()
                         .unwrap_or(false),
                     platform_req_filter.clone(),
                 )?;
             }
-            if input.borrow().get_option("outdated").as_bool() == Some(true)
-                && input.borrow().get_option("strict").as_bool() == Some(true)
+            if input.borrow().get_option("outdated")?.as_bool() == Some(true)
+                && input.borrow().get_option("strict")?.as_bool() == Some(true)
                 && latest_package.is_some()
                 && latest_package
                     .as_ref()
@@ -631,7 +636,7 @@ impl ShowCommand {
             {
                 exit_code = 1;
             }
-            if input.borrow().get_option("path").as_bool() == Some(true) {
+            if input.borrow().get_option("path")?.as_bool() == Some(true) {
                 self.get_io().write_no_newline(&package.get_name());
                 let path = {
                     let composer_ref = composer.as_ref().unwrap();
@@ -672,7 +677,7 @@ impl ShowCommand {
         }
 
         // show tree view if requested
-        if input.borrow().get_option("tree").as_bool() == Some(true) {
+        if input.borrow().get_option("tree")?.as_bool() == Some(true) {
             let root_requires = self.get_root_requires();
             let mut packages = installed_repo.get_packages()?;
             packages.sort_by(|a, b| {
@@ -734,11 +739,11 @@ impl ShowCommand {
         }
 
         let mut package_list_filter: Option<Vec<String>> = None;
-        if input.borrow().get_option("direct").as_bool() == Some(true) {
+        if input.borrow().get_option("direct")?.as_bool() == Some(true) {
             package_list_filter = Some(self.get_root_requires());
         }
 
-        if input.borrow().get_option("path").as_bool() == Some(true) && composer.is_none() {
+        if input.borrow().get_option("path")?.as_bool() == Some(true) && composer.is_none() {
             self.get_io().write_error(
                 "No composer.json found in the current directory, disabling \"path\" option",
             );
@@ -831,15 +836,15 @@ impl ShowCommand {
             }
         }
 
-        let show_all_types = input.borrow().get_option("all").as_bool() == Some(true);
-        let show_latest = input.borrow().get_option("latest").as_bool() == Some(true);
-        let show_major_only = input.borrow().get_option("major-only").as_bool() == Some(true);
-        let show_minor_only = input.borrow().get_option("minor-only").as_bool() == Some(true);
-        let show_patch_only = input.borrow().get_option("patch-only").as_bool() == Some(true);
+        let show_all_types = input.borrow().get_option("all")?.as_bool() == Some(true);
+        let show_latest = input.borrow().get_option("latest")?.as_bool() == Some(true);
+        let show_major_only = input.borrow().get_option("major-only")?.as_bool() == Some(true);
+        let show_minor_only = input.borrow().get_option("minor-only")?.as_bool() == Some(true);
+        let show_patch_only = input.borrow().get_option("patch-only")?.as_bool() == Some(true);
         let ignored_packages_regex = base_package::package_names_to_regexp(
             &input
                 .borrow()
-                .get_option("ignore")
+                .get_option("ignore")?
                 .as_list()
                 .map(|l| {
                     l.iter()
@@ -898,21 +903,21 @@ impl ShowCommand {
                     }
                 }
 
-                let write_path = input.borrow().get_option("name-only").as_bool() != Some(true)
-                    && input.borrow().get_option("path").as_bool() == Some(true);
-                write_version = input.borrow().get_option("name-only").as_bool() != Some(true)
-                    && input.borrow().get_option("path").as_bool() != Some(true)
+                let write_path = input.borrow().get_option("name-only")?.as_bool() != Some(true)
+                    && input.borrow().get_option("path")?.as_bool() == Some(true);
+                write_version = input.borrow().get_option("name-only")?.as_bool() != Some(true)
+                    && input.borrow().get_option("path")?.as_bool() != Some(true)
                     && *show_version;
                 let write_latest = write_version && show_latest;
-                write_description = input.borrow().get_option("name-only").as_bool() != Some(true)
-                    && input.borrow().get_option("path").as_bool() != Some(true);
+                write_description = input.borrow().get_option("name-only")?.as_bool() != Some(true)
+                    && input.borrow().get_option("path")?.as_bool() != Some(true);
                 let write_release_date = write_latest
-                    && (input.borrow().get_option("sort-by-age").as_bool() == Some(true)
+                    && (input.borrow().get_option("sort-by-age")?.as_bool() == Some(true)
                         || format == "json");
 
                 let mut has_outdated_packages = false;
 
-                if input.borrow().get_option("sort-by-age").as_bool() == Some(true) {
+                if input.borrow().get_option("sort-by-age")?.as_bool() == Some(true) {
                     type_packages.sort_by(|_ka, a, _kb, b| match (a, b) {
                         (PackageOrName::Pkg(a), PackageOrName::Pkg(b)) => {
                             a.get_release_date().cmp(&b.get_release_date())
@@ -950,14 +955,14 @@ impl ShowCommand {
                             package_is_up_to_date || (latest_package.is_none() && show_major_only);
                         let package_is_ignored =
                             Preg::is_match(&ignored_packages_regex, &package.get_pretty_name())?;
-                        if input.borrow().get_option("outdated").as_bool() == Some(true)
+                        if input.borrow().get_option("outdated")?.as_bool() == Some(true)
                             && (package_is_up_to_date || package_is_ignored)
                         {
                             continue;
                         }
 
-                        if input.borrow().get_option("outdated").as_bool() == Some(true)
-                            || input.borrow().get_option("strict").as_bool() == Some(true)
+                        if input.borrow().get_option("outdated")?.as_bool() == Some(true)
+                            || input.borrow().get_option("strict")?.as_bool() == Some(true)
                         {
                             has_outdated_packages = true;
                         }
@@ -980,7 +985,7 @@ impl ShowCommand {
                             )),
                         );
                         if format != "json"
-                            || input.borrow().get_option("name-only").as_bool() != Some(true)
+                            || input.borrow().get_option("name-only")?.as_bool() != Some(true)
                         {
                             package_view_data.insert(
                                 "homepage".to_string(),
@@ -1159,7 +1164,7 @@ impl ShowCommand {
                         write_release_date,
                     },
                 );
-                if input.borrow().get_option("strict").as_bool() == Some(true)
+                if input.borrow().get_option("strict")?.as_bool() == Some(true)
                     && has_outdated_packages
                 {
                     exit_code = 1;
@@ -1194,7 +1199,7 @@ impl ShowCommand {
                     .collect(),
             )));
         } else {
-            if input.borrow().get_option("latest").as_bool() == Some(true)
+            if input.borrow().get_option("latest")?.as_bool() == Some(true)
                 && view_data.values().any(|v| !v.is_empty())
             {
                 let io = self.get_io();
@@ -1202,7 +1207,7 @@ impl ShowCommand {
                     io.write_error("Legend:");
                     io.write_error("! patch or minor release available - update recommended");
                     io.write_error("~ major release available - update possible");
-                    if input.borrow().get_option("outdated").as_bool() != Some(true) {
+                    if input.borrow().get_option("outdated")?.as_bool() != Some(true) {
                         io.write_error("= up to date version");
                     }
                 } else {
@@ -1211,7 +1216,7 @@ impl ShowCommand {
                     io.write_error(
                         "- <comment>major</comment> release available - update possible",
                     );
-                    if input.borrow().get_option("outdated").as_bool() != Some(true) {
+                    if input.borrow().get_option("outdated")?.as_bool() != Some(true) {
                         io.write_error("- <info>up to date</info> version");
                     }
                 }
@@ -1254,7 +1259,7 @@ impl ShowCommand {
                     }
                 }
 
-                if write_latest && input.borrow().get_option("direct").as_bool() != Some(true) {
+                if write_latest && input.borrow().get_option("direct")?.as_bool() != Some(true) {
                     let mut direct_deps: Vec<IndexMap<String, PhpMixed>> = Vec::new();
                     let mut transitive_deps: Vec<IndexMap<String, PhpMixed>> = Vec::new();
                     for pkg in packages.iter() {
@@ -1387,7 +1392,7 @@ impl ShowCommand {
                 io.write_no_newline(&format!(
                     "{}<href={}>{}</>{}",
                     indent,
-                    OutputFormatter::escape(&link),
+                    OutputFormatter::escape(&link).expect("OutputFormatter::escape failed"),
                     name,
                     " ".repeat(pad)
                 ));
@@ -2264,12 +2269,12 @@ impl ShowCommand {
         ];
 
         for color in self.colors.iter() {
-            let style = OutputFormatterStyle::new(Some(color.as_str()), None, None);
+            let style = OutputFormatterStyle::new(Some(color.as_str()), None, vec![]);
             output
                 .borrow()
                 .get_formatter()
                 .borrow_mut()
-                .set_style(color, style);
+                .set_style(color, Box::new(style));
         }
     }
 
diff --git a/crates/shirabe/src/command/status_command.rs b/crates/shirabe/src/command/status_command.rs
index 0febf1e..bbff681 100644
--- a/crates/shirabe/src/command/status_command.rs
+++ b/crates/shirabe/src/command/status_command.rs
@@ -218,7 +218,7 @@ impl StatusCommand {
             for (path, changes) in &errors {
                 if input
                     .borrow()
-                    .get_option("verbose")
+                    .get_option("verbose")?
                     .as_bool()
                     .unwrap_or(false)
                 {
@@ -241,7 +241,7 @@ impl StatusCommand {
             for (path, changes) in &unpushed_changes {
                 if input
                     .borrow()
-                    .get_option("verbose")
+                    .get_option("verbose")?
                     .as_bool()
                     .unwrap_or(false)
                 {
@@ -266,7 +266,7 @@ impl StatusCommand {
             for (path, changes) in &vcs_version_changes {
                 if input
                     .borrow()
-                    .get_option("verbose")
+                    .get_option("verbose")?
                     .as_bool()
                     .unwrap_or(false)
                 {
@@ -332,7 +332,7 @@ impl StatusCommand {
         if (!errors.is_empty() || !unpushed_changes.is_empty() || !vcs_version_changes.is_empty())
             && !input
                 .borrow()
-                .get_option("verbose")
+                .get_option("verbose")?
                 .as_bool()
                 .unwrap_or(false)
         {
diff --git a/crates/shirabe/src/command/suggests_command.rs b/crates/shirabe/src/command/suggests_command.rs
index b93f7ec..393874f 100644
--- a/crates/shirabe/src/command/suggests_command.rs
+++ b/crates/shirabe/src/command/suggests_command.rs
@@ -69,7 +69,7 @@ impl SuggestsCommand {
             let locked_repo = composer.get_locker().borrow_mut().get_locked_repository(
                 !input
                     .borrow()
-                    .get_option("no-dev")
+                    .get_option("no-dev")?
                     .as_bool()
                     .unwrap_or(false),
             )?;
@@ -95,7 +95,7 @@ impl SuggestsCommand {
         let mut installed_repo = InstalledRepository::new(installed_repos);
         let mut reporter = SuggestedPackagesReporter::new(self.get_io().clone());
 
-        let filter = input.borrow().get_argument("packages");
+        let filter = input.borrow().get_argument("packages")?;
         let mut packages = RepositoryInterface::get_packages(&mut installed_repo)?;
         let root_pkg_as_base: crate::package::BasePackageHandle =
             composer.get_package().clone().into();
@@ -111,7 +111,7 @@ impl SuggestsCommand {
 
         if input
             .borrow()
-            .get_option("by-suggestion")
+            .get_option("by-suggestion")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -119,18 +119,23 @@ impl SuggestsCommand {
         }
         if input
             .borrow()
-            .get_option("by-package")
+            .get_option("by-package")?
             .as_bool()
             .unwrap_or(false)
         {
             mode |= SuggestedPackagesReporter::MODE_BY_PACKAGE;
         }
-        if input.borrow().get_option("list").as_bool().unwrap_or(false) {
+        if input
+            .borrow()
+            .get_option("list")?
+            .as_bool()
+            .unwrap_or(false)
+        {
             mode = SuggestedPackagesReporter::MODE_LIST;
         }
 
         let only_dependents_of: Option<crate::package::PackageInterfaceHandle> =
-            if empty(&filter) && !input.borrow().get_option("all").as_bool().unwrap_or(false) {
+            if empty(&filter) && !input.borrow().get_option("all")?.as_bool().unwrap_or(false) {
                 Some(composer.get_package().clone().into())
             } else {
                 None
diff --git a/crates/shirabe/src/command/update_command.rs b/crates/shirabe/src/command/update_command.rs
index eb618ca..60d2eac 100644
--- a/crates/shirabe/src/command/update_command.rs
+++ b/crates/shirabe/src/command/update_command.rs
@@ -78,7 +78,7 @@ impl UpdateCommand {
         output: std::rc::Rc<std::cell::RefCell<dyn OutputInterface>>,
     ) -> Result<i64> {
         let io = self.get_io().clone();
-        if input.borrow().get_option("dev").as_bool().unwrap_or(false) {
+        if input.borrow().get_option("dev")?.as_bool().unwrap_or(false) {
             io.write_error3(
                 "<warning>You are using the deprecated option \"--dev\". It has no effect and will break in Composer 3.</warning>",
                 true,
@@ -87,7 +87,7 @@ impl UpdateCommand {
         }
         if input
             .borrow()
-            .get_option("no-suggest")
+            .get_option("no-suggest")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -111,7 +111,7 @@ impl UpdateCommand {
 
         let mut packages: Vec<String> = input
             .borrow()
-            .get_argument("packages")
+            .get_argument("packages")?
             .as_list()
             .map(|l| {
                 l.iter()
@@ -122,7 +122,7 @@ impl UpdateCommand {
         let mut reqs: IndexMap<String, String> = self.format_requirements(
             input
                 .borrow()
-                .get_option("with")
+                .get_option("with")?
                 .as_list()
                 .map(|l| {
                     l.iter()
@@ -196,7 +196,7 @@ impl UpdateCommand {
 
         if input
             .borrow()
-            .get_option("patch-only")
+            .get_option("patch-only")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -241,7 +241,7 @@ impl UpdateCommand {
 
         if input
             .borrow()
-            .get_option("interactive")
+            .get_option("interactive")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -256,14 +256,14 @@ impl UpdateCommand {
 
         if input
             .borrow()
-            .get_option("root-reqs")
+            .get_option("root-reqs")?
             .as_bool()
             .unwrap_or(false)
         {
             let mut requires: Vec<String> = array_keys(&root_package.get_requires());
             if !input
                 .borrow()
-                .get_option("no-dev")
+                .get_option("no-dev")?
                 .as_bool()
                 .unwrap_or(false)
             {
@@ -290,7 +290,11 @@ impl UpdateCommand {
                 true,
             )
         });
-        let update_mirrors = input.borrow().get_option("lock").as_bool().unwrap_or(false)
+        let update_mirrors = input
+            .borrow()
+            .get_option("lock")?
+            .as_bool()
+            .unwrap_or(false)
             || filtered_packages.len() != packages.len();
         packages = filtered_packages;
 
@@ -314,7 +318,7 @@ impl UpdateCommand {
             .set_output_progress(
                 !input
                     .borrow()
-                    .get_option("no-progress")
+                    .get_option("no-progress")?
                     .as_bool()
                     .unwrap_or(false),
             );
@@ -327,7 +331,7 @@ impl UpdateCommand {
 
         let optimize = input
             .borrow()
-            .get_option("optimize-autoloader")
+            .get_option("optimize-autoloader")?
             .as_bool()
             .unwrap_or(false)
             || config
@@ -337,7 +341,7 @@ impl UpdateCommand {
                 .unwrap_or(false);
         let authoritative = input
             .borrow()
-            .get_option("classmap-authoritative")
+            .get_option("classmap-authoritative")?
             .as_bool()
             .unwrap_or(false)
             || config
@@ -347,13 +351,13 @@ impl UpdateCommand {
                 .unwrap_or(false);
         let apcu_prefix: Option<String> = input
             .borrow()
-            .get_option("apcu-autoloader-prefix")
+            .get_option("apcu-autoloader-prefix")?
             .as_string()
             .map(|s| s.to_string());
         let apcu = apcu_prefix.is_some()
             || input
                 .borrow()
-                .get_option("apcu-autoloader")
+                .get_option("apcu-autoloader")?
                 .as_bool()
                 .unwrap_or(false)
             || config
@@ -363,7 +367,7 @@ impl UpdateCommand {
                 .unwrap_or(false);
         let minimal_changes = input
             .borrow()
-            .get_option("minimal-changes")
+            .get_option("minimal-changes")?
             .as_bool()
             .unwrap_or(false)
             || config
@@ -375,7 +379,7 @@ impl UpdateCommand {
         let mut update_allow_transitive_dependencies = UpdateAllowTransitiveDeps::UpdateOnlyListed;
         if input
             .borrow()
-            .get_option("with-all-dependencies")
+            .get_option("with-all-dependencies")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -383,7 +387,7 @@ impl UpdateCommand {
                 UpdateAllowTransitiveDeps::UpdateListedWithTransitiveDeps;
         } else if input
             .borrow()
-            .get_option("with-dependencies")
+            .get_option("with-dependencies")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -395,14 +399,14 @@ impl UpdateCommand {
             .set_dry_run(
                 input
                     .borrow()
-                    .get_option("dry-run")
+                    .get_option("dry-run")?
                     .as_bool()
                     .unwrap_or(false),
             )
             .set_verbose(
                 input
                     .borrow()
-                    .get_option("verbose")
+                    .get_option("verbose")?
                     .as_bool()
                     .unwrap_or(false),
             )
@@ -411,14 +415,14 @@ impl UpdateCommand {
             .set_dev_mode(
                 !input
                     .borrow()
-                    .get_option("no-dev")
+                    .get_option("no-dev")?
                     .as_bool()
                     .unwrap_or(false),
             )
             .set_dump_autoloader(
                 !input
                     .borrow()
-                    .get_option("no-autoloader")
+                    .get_option("no-autoloader")?
                     .as_bool()
                     .unwrap_or(false),
             )
@@ -429,7 +433,7 @@ impl UpdateCommand {
             .set_install(
                 !input
                     .borrow()
-                    .get_option("no-install")
+                    .get_option("no-install")?
                     .as_bool()
                     .unwrap_or(false),
             )
@@ -440,14 +444,14 @@ impl UpdateCommand {
             .set_prefer_stable(
                 input
                     .borrow()
-                    .get_option("prefer-stable")
+                    .get_option("prefer-stable")?
                     .as_bool()
                     .unwrap_or(false),
             )
             .set_prefer_lowest(
                 input
                     .borrow()
-                    .get_option("prefer-lowest")
+                    .get_option("prefer-lowest")?
                     .as_bool()
                     .unwrap_or(false),
             )
@@ -459,7 +463,7 @@ impl UpdateCommand {
 
         if input
             .borrow()
-            .get_option("no-plugins")
+            .get_option("no-plugins")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -468,8 +472,14 @@ impl UpdateCommand {
 
         let mut result = install.run()?;
 
-        if result == 0 && !input.borrow().get_option("lock").as_bool().unwrap_or(false) {
-            let mut bump_after_update = input.borrow().get_option("bump-after-update");
+        if result == 0
+            && !input
+                .borrow()
+                .get_option("lock")?
+                .as_bool()
+                .unwrap_or(false)
+        {
+            let mut bump_after_update = input.borrow().get_option("bump-after-update")?;
             // PHP: false === $bumpAfterUpdate (strict)
             if matches!(bump_after_update, PhpMixed::Bool(false)) {
                 bump_after_update = composer.get_config().borrow().get("bump-after-update");
@@ -489,12 +499,12 @@ impl UpdateCommand {
                     bump_after_update.as_string() == Some("no-dev"),
                     input
                         .borrow()
-                        .get_option("dry-run")
+                        .get_option("dry-run")?
                         .as_bool()
                         .unwrap_or(false),
                     input
                         .borrow()
-                        .get_argument("packages")
+                        .get_argument("packages")?
                         .as_list()
                         .map(|l| {
                             l.iter()
diff --git a/crates/shirabe/src/command/validate_command.rs b/crates/shirabe/src/command/validate_command.rs
index 73de63b..1d9d036 100644
--- a/crates/shirabe/src/command/validate_command.rs
+++ b/crates/shirabe/src/command/validate_command.rs
@@ -115,7 +115,7 @@ impl ValidateCommand {
     ) -> Result<i64> {
         let file = input
             .borrow()
-            .get_argument("file")
+            .get_argument("file")?
             .as_string()
             .map(|s| s.to_string())
             .map(Ok)
@@ -134,7 +134,7 @@ impl ValidateCommand {
         let validator = ConfigValidator::new(io.clone());
         let check_all = if input
             .borrow()
-            .get_option("no-check-all")
+            .get_option("no-check-all")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -144,17 +144,17 @@ impl ValidateCommand {
         };
         let check_publish = !input
             .borrow()
-            .get_option("no-check-publish")
+            .get_option("no-check-publish")?
             .as_bool()
             .unwrap_or(false);
         let check_lock = !input
             .borrow()
-            .get_option("no-check-lock")
+            .get_option("no-check-lock")?
             .as_bool()
             .unwrap_or(false);
         let check_version = if input
             .borrow()
-            .get_option("no-check-version")
+            .get_option("no-check-version")?
             .as_bool()
             .unwrap_or(false)
         {
@@ -164,7 +164,7 @@ impl ValidateCommand {
         };
         let is_strict = input
             .borrow()
-            .get_option("strict")
+            .get_option("strict")?
             .as_bool()
             .unwrap_or(false);
         let (mut errors, mut publish_errors, mut warnings) =
@@ -183,7 +183,7 @@ impl ValidateCommand {
                 .unwrap_or(true))
             || input
                 .borrow()
-                .get_option("check-lock")
+                .get_option("check-lock")?
                 .as_bool()
                 .unwrap_or(false);
         let locker = composer.get_locker().clone();
@@ -221,7 +221,7 @@ impl ValidateCommand {
 
         if input
             .borrow()
-            .get_option("with-dependencies")
+            .get_option("with-dependencies")?
             .as_bool()
             .unwrap_or(false)
         {
diff --git a/crates/shirabe/src/console/application.rs b/crates/shirabe/src/console/application.rs
index 2eb9f9a..dcf30dc 100644
--- a/crates/shirabe/src/console/application.rs
+++ b/crates/shirabe/src/console/application.rs
@@ -6,12 +6,12 @@ use indexmap::IndexMap;
 use shirabe_external_packages::composer::xdebug_handler::XdebugHandler;
 use shirabe_external_packages::seld::json_lint::ParsingException;
 use shirabe_external_packages::symfony::console::Application as BaseApplication;
-use shirabe_external_packages::symfony::console::SingleCommandApplication;
 use shirabe_external_packages::symfony::console::command::Command;
 use shirabe_external_packages::symfony::console::exception::CommandNotFoundException;
 use shirabe_external_packages::symfony::console::exception::ExceptionInterface;
 use shirabe_external_packages::symfony::console::helper::HelperInterface;
 use shirabe_external_packages::symfony::console::helper::HelperSet;
+use shirabe_external_packages::symfony::console::helper::HelperSetKey;
 use shirabe_external_packages::symfony::console::helper::QuestionHelper;
 use shirabe_external_packages::symfony::console::input::InputDefinition;
 use shirabe_external_packages::symfony::console::input::InputInterface;
@@ -103,8 +103,9 @@ impl Application {
     const LOGO: &'static str = "   ______\n  / ____/___  ____ ___  ____  ____  ________  _____\n / /   / __ \\/ __ `__ \\/ __ \\/ __ \\/ ___/ _ \\/ ___/\n/ /___/ /_/ / / / / / / /_/ / /_/ (__  )  __/ /\n\\____/\\____/_/ /_/ /_/ .___/\\____/____/\\___/_/\n                    /_/\n";
 
     pub fn new(name: String, mut version: String) -> Self {
-        let mut inner = BaseApplication::new(&name, &version);
-        inner.set_catch_errors(true);
+        // PHP: if (method_exists($this, 'setCatchErrors')) { $this->setCatchErrors(true); }
+        // This Symfony Console port does not provide `setCatchErrors`, so the guarded call
+        // is skipped, matching `method_exists` evaluating to false.
 
         // PHP: static $shutdownRegistered = false; — register only once globally
         static SHUTDOWN_REGISTERED: std::sync::OnceLock<()> = std::sync::OnceLock::new();
@@ -147,8 +148,7 @@ impl Application {
         let initial_working_directory = getcwd();
 
         // PHP: parent::__construct($name, $version);
-        // BaseApplication is mock-imported; assume new(name, version) above also recorded the version.
-        let _ = (name, version);
+        let inner = BaseApplication::__construct(&name, &version);
 
         Self {
             inner,
@@ -184,10 +184,10 @@ impl Application {
     ) -> anyhow::Result<i64> {
         self.disable_plugins_by_default = input
             .borrow()
-            .has_parameter_option(&["--no-plugins"], false);
+            .has_parameter_option(PhpMixed::from(vec!["--no-plugins"]), false);
         self.disable_scripts_by_default = input
             .borrow()
-            .has_parameter_option(&["--no-scripts"], false);
+            .has_parameter_option(PhpMixed::from(vec!["--no-scripts"]), false);
 
         // PHP: static $stdin = null; — cached across doRun calls so the php://stdin handle is
         // opened once.
@@ -209,18 +209,29 @@ impl Application {
         }
 
         // PHP: $this->io = new ConsoleIO($input, $output, new HelperSet([new QuestionHelper()]));
-        let helpers: Vec<std::rc::Rc<std::cell::RefCell<dyn HelperInterface>>> =
-            vec![std::rc::Rc::new(std::cell::RefCell::new(QuestionHelper))];
+        let mut helpers: IndexMap<
+            HelperSetKey,
+            std::rc::Rc<std::cell::RefCell<dyn HelperInterface>>,
+        > = IndexMap::new();
+        helpers.insert(
+            HelperSetKey::Int(0),
+            std::rc::Rc::new(std::cell::RefCell::new(QuestionHelper::default())),
+        );
+        let helper_set = std::rc::Rc::new(std::cell::RefCell::new(HelperSet::default()));
+        HelperSet::new(&helper_set, helpers);
         self.io = std::rc::Rc::new(std::cell::RefCell::new(ConsoleIO::new(
             input.clone(),
             output.clone(),
-            HelperSet::new(helpers),
+            helper_set.borrow().clone(),
         )));
 
         // Register error handler again to pass it the IO instance
         ErrorHandler::register(Some(self.io.clone()));
 
-        if input.borrow().has_parameter_option(&["--no-cache"], false) {
+        if input
+            .borrow()
+            .has_parameter_option(PhpMixed::from(vec!["--no-cache"]), false)
+        {
             self.io
                 .write_error3("Disabling cache usage", true, io_interface::DEBUG);
             Platform::put_env(
@@ -308,10 +319,22 @@ impl Application {
             && !file_exists(&Factory::get_composer_file().unwrap_or_default())
             && use_parent_dir_if_no_json_available.as_bool() != Some(false)
             && (command_name.as_deref() != Some("config")
-                || (input.borrow().has_parameter_option(&["--file"], true) == false
-                    && input.borrow().has_parameter_option(&["-f"], true) == false))
-            && input.borrow().has_parameter_option(&["--help"], true) == false
-            && input.borrow().has_parameter_option(&["-h"], true) == false
+                || (input
+                    .borrow()
+                    .has_parameter_option(PhpMixed::from(vec!["--file"]), true)
+                    == false
+                    && input
+                        .borrow()
+                        .has_parameter_option(PhpMixed::from(vec!["-f"]), true)
+                        == false))
+            && input
+                .borrow()
+                .has_parameter_option(PhpMixed::from(vec!["--help"]), true)
+                == false
+            && input
+                .borrow()
+                .has_parameter_option(PhpMixed::from(vec!["-h"]), true)
+                == false
         {
             let mut dir = dirname(&Platform::get_cwd(true).unwrap_or_default());
             let home_value = Platform::get_env("HOME")
@@ -394,7 +417,7 @@ impl Application {
         ]);
         let may_need_plugin_command = !input
             .borrow()
-            .has_parameter_option(&["--version", "-V"], false)
+            .has_parameter_option(PhpMixed::from(vec!["--version", "-V"]), false)
             && (command_name.is_none()
                 || in_array(
                     command_name.as_deref().unwrap_or("").into(),
@@ -692,7 +715,7 @@ impl Application {
                                         // reflection (instantiate_class) and stays PhpMixed; the
                                         // SingleCommandApplication / Command typed registry it
                                         // belongs to is an external-package todo!() stub.
-                                        let _ = SingleCommandApplication::new;
+                                        // let _ = SingleCommandApplication::new;
 
                                         // makes sure the command is find()'able by the name defined in composer.json, and the name isn't overridden in its configure()
                                         // TODO(phase-c): cmd is the PhpMixed result of reflection
@@ -717,10 +740,15 @@ impl Application {
                                     };
 
                                     // Compatibility layer for symfony/console <7.4
-                                    // TODO(phase-c): self.inner.add() takes PhpMixed but must
-                                    // register a typed command instance; blocked on the Symfony
-                                    // command-registry model (external-package todo!() stub).
-                                    let _ = self.inner.add(cmd);
+                                    // TODO(phase-c): self.inner.add() takes Rc<RefCell<dyn Command>>
+                                    // but `cmd` here is the PhpMixed result of reflection-based
+                                    // plugin command instantiation; registering it as a typed
+                                    // command instance is blocked on the Symfony command-registry
+                                    // model (external-package todo!() stub).
+                                    let _ = &cmd;
+                                    todo!(
+                                        "plugin: register reflection-instantiated command on Application::add"
+                                    );
                                 }
                             }
                         }
@@ -731,7 +759,10 @@ impl Application {
 
         let mut start_time: Option<f64> = None;
         let result_outcome: anyhow::Result<i64> = (|| -> anyhow::Result<i64> {
-            if input.borrow().has_parameter_option(&["--profile"], false) {
+            if input
+                .borrow()
+                .has_parameter_option(PhpMixed::from(vec!["--profile"]), false)
+            {
                 start_time = Some(microtime(true));
                 // PHP: $this->io->enableDebugging($startTime).
                 // TODO(phase-c): enableDebugging exists only on ConsoleIO, not on IOInterface,
@@ -745,7 +776,7 @@ impl Application {
 
             if input
                 .borrow()
-                .has_parameter_option(&["--version", "-V"], true)
+                .has_parameter_option(PhpMixed::from(vec!["--version", "-V"]), true)
             {
                 self.io.write_error(&sprintf(
                     "<info>PHP</info> version <comment>%s</comment> (%s)",
@@ -828,7 +859,11 @@ impl Application {
     ) -> anyhow::Result<Option<String>> {
         let working_dir = input
             .borrow()
-            .get_parameter_option(&["--working-dir", "-d"], PhpMixed::Null, true)
+            .get_parameter_option(
+                PhpMixed::from(vec!["--working-dir", "-d"]),
+                PhpMixed::Null,
+                true,
+            )
             .as_string()
             .map(|s| s.to_string());
         if let Some(ref wd) = working_dir {
@@ -1089,7 +1124,6 @@ impl Application {
         // returns the application's typed InputDefinition, but the Symfony Application stub returns
         // PhpMixed. Until both land, getFirstArgument cannot be computed and we return None.
         let _ = input;
-        let _ = self.inner.get_definition();
         None
     }
 
@@ -1115,45 +1149,45 @@ impl Application {
         )
     }
 
-    pub(crate) fn get_default_input_definition(&self) -> InputDefinition {
+    pub(crate) fn get_default_input_definition(&self) -> anyhow::Result<InputDefinition> {
         let mut definition = self.inner.get_default_input_definition();
         definition.add_option(InputOption::new(
             "--profile",
-            None,
+            PhpMixed::Null,
             Some(InputOption::VALUE_NONE),
-            "Display timing and memory usage information",
+            "Display timing and memory usage information".to_string(),
             PhpMixed::Null,
-        ));
+        )?)?;
         definition.add_option(InputOption::new(
             "--no-plugins",
-            None,
+            PhpMixed::Null,
             Some(InputOption::VALUE_NONE),
-            "Whether to disable plugins.",
+            "Whether to disable plugins.".to_string(),
             PhpMixed::Null,
-        ));
+        )?)?;
         definition.add_option(InputOption::new(
             "--no-scripts",
-            None,
+            PhpMixed::Null,
             Some(InputOption::VALUE_NONE),
-            "Skips the execution of all scripts defined in composer.json file.",
+            "Skips the execution of all scripts defined in composer.json file.".to_string(),
             PhpMixed::Null,
-        ));
+        )?)?;
         definition.add_option(InputOption::new(
             "--working-dir",
-            Some("-d"),
+            PhpMixed::from("-d"),
             Some(InputOption::VALUE_REQUIRED),
-            "If specified, use the given directory as working directory.",
+            "If specified, use the given directory as working directory.".to_string(),
             PhpMixed::Null,
-        ));
+        )?)?;
         definition.add_option(InputOption::new(
             "--no-cache",
-            None,
+            PhpMixed::Null,
             Some(InputOption::VALUE_NONE),
-            "Prevent use of the cache",
+            "Prevent use of the cache".to_string(),
             PhpMixed::Null,
-        ));
+        )?)?;
 
-        definition
+        Ok(definition)
     }
 
     fn get_plugin_commands(&mut self) -> anyhow::Result<Vec<Box<dyn Command>>> {
diff --git a/crates/shirabe/src/console/html_output_formatter.rs b/crates/shirabe/src/console/html_output_formatter.rs
index a2158fa..b516c83 100644
--- a/crates/shirabe/src/console/html_output_formatter.rs
+++ b/crates/shirabe/src/console/html_output_formatter.rs
@@ -3,7 +3,8 @@
 use indexmap::IndexMap;
 use shirabe_external_packages::composer::pcre::{CaptureKey, Preg};
 use shirabe_external_packages::symfony::console::formatter::OutputFormatter;
-use shirabe_external_packages::symfony::console::formatter::OutputFormatterStyle;
+use shirabe_external_packages::symfony::console::formatter::OutputFormatterInterface;
+use shirabe_external_packages::symfony::console::formatter::OutputFormatterStyleInterface;
 
 #[derive(Debug)]
 pub struct HtmlOutputFormatter {
@@ -41,14 +42,19 @@ impl HtmlOutputFormatter {
         //8 => "conceal"
     ];
 
-    pub fn new(styles: IndexMap<String, OutputFormatterStyle>) -> Self {
+    pub fn new(styles: IndexMap<String, Box<dyn OutputFormatterStyleInterface>>) -> Self {
         Self {
             inner: OutputFormatter::new(true, styles),
         }
     }
 
-    pub fn format(&self, message: Option<&str>) -> Option<String> {
-        let formatted = self.inner.format(message.unwrap_or(""));
+    pub fn format(&mut self, message: Option<&str>) -> anyhow::Result<Option<String>> {
+        let formatted = self.inner.format(message)?;
+
+        let formatted = match formatted {
+            Some(formatted) => formatted,
+            None => return Ok(None),
+        };
 
         let clear_escape_codes = "(?:39|49|0|22|24|25|27|28)";
         let pattern = format!(
@@ -56,7 +62,11 @@ impl HtmlOutputFormatter {
             clear_escape_codes, clear_escape_codes
         );
 
-        Preg::replace_callback(&pattern, |matches| self.format_html(matches), &formatted).ok()
+        Ok(Some(Preg::replace_callback(
+            &pattern,
+            |matches| self.format_html(matches),
+            &formatted,
+        )?))
     }
 
     fn format_html(&self, matches: &IndexMap<CaptureKey, String>) -> String {
diff --git a/crates/shirabe/src/console/input/input_argument.rs b/crates/shirabe/src/console/input/input_argument.rs
index 458ec61..81f38ac 100644
--- a/crates/shirabe/src/console/input/input_argument.rs
+++ b/crates/shirabe/src/console/input/input_argument.rs
@@ -21,7 +21,12 @@ impl InputArgument {
         default: Option<PhpMixed>,
         // TODO(cli-completion): suggested_values closure / list dropped along with completion support
     ) -> Result<Self> {
-        let inner = BaseInputArgument::new(name, mode, description, default);
+        let inner = BaseInputArgument::new(
+            name.to_string(),
+            mode,
+            description.to_string(),
+            default.unwrap_or(PhpMixed::Null),
+        )?;
         Ok(Self { inner })
     }
 }
diff --git a/crates/shirabe/src/console/input/input_option.rs b/crates/shirabe/src/console/input/input_option.rs
index 92c4a51..3298be0 100644
--- a/crates/shirabe/src/console/input/input_option.rs
+++ b/crates/shirabe/src/console/input/input_option.rs
@@ -24,9 +24,10 @@ impl InputOption {
         default: Option<PhpMixed>,
         // TODO(cli-completion): suggested_values closure / list dropped along with completion support
     ) -> Result<Self> {
-        let shortcut_str = shortcut.as_ref().and_then(|s| s.as_string());
+        let shortcut = shortcut.unwrap_or(PhpMixed::Null);
         let default_mixed = default.unwrap_or(PhpMixed::Null);
-        let inner = BaseInputOption::new(name, shortcut_str, mode, description, default_mixed);
+        let inner =
+            BaseInputOption::new(name, shortcut, mode, description.to_string(), default_mixed)?;
         Ok(Self { inner })
     }
 }
diff --git a/crates/shirabe/src/dependency_resolver/problem.rs b/crates/shirabe/src/dependency_resolver/problem.rs
index 7841946..be2b0ad 100644
--- a/crates/shirabe/src/dependency_resolver/problem.rs
+++ b/crates/shirabe/src/dependency_resolver/problem.rs
@@ -816,7 +816,8 @@ impl Problem {
                                 OutputFormatter::escape(&format!(
                                     "https://packagist.org/security-advisories/{}",
                                     advisory_id
-                                )),
+                                ))
+                                .expect("OutputFormatter::escape does not fail"),
                                 advisory_id
                             );
                         }
diff --git a/crates/shirabe/src/event_dispatcher/event_dispatcher.rs b/crates/shirabe/src/event_dispatcher/event_dispatcher.rs
index 2124093..d209e1e 100644
--- a/crates/shirabe/src/event_dispatcher/event_dispatcher.rs
+++ b/crates/shirabe/src/event_dispatcher/event_dispatcher.rs
@@ -587,14 +587,11 @@ impl EventDispatcher {
                             continue;
                         }
 
-                        let mut app = Application::new("", "");
+                        let mut app = Application::__construct("UNKNOWN", "UNKNOWN");
                         app.set_catch_exceptions(false);
-                        if method_exists(
-                            &PhpMixed::String("Application".to_string()),
-                            "setCatchErrors",
-                        ) {
-                            app.set_catch_errors(false);
-                        }
+                        // PHP: if (method_exists($app, 'setCatchErrors')) { $app->setCatchErrors(false); }
+                        // This Symfony Console port does not provide `setCatchErrors`, so the
+                        // guarded call is skipped, matching `method_exists` evaluating to false.
                         app.set_auto_exit(false);
                         // TODO(plugin): instantiate command class dynamically: `new $className($event->getName())`
                         todo!(
@@ -615,7 +612,7 @@ impl EventDispatcher {
                                 let _refl_php_version_gate = PHP_VERSION_ID < 80100;
                                 todo!("\\ReflectionProperty on ConsoleIO::$output")
                             } else {
-                                ConsoleOutput::new(0, None, None)
+                                ConsoleOutput::new(None, None, None)?
                             };
                             let input_str = event
                                 .get_flags()
@@ -623,8 +620,8 @@ impl EventDispatcher {
                                 .and_then(|v| v.as_string())
                                 .unwrap_or(&args)
                                 .to_string();
-                            let mut input = StringInput::new(&input_str);
-                            let mut output = output;
+                            let input = StringInput::new(&input_str)?;
+                            let output = output;
                             Ok(app.run(
                                 Some(std::rc::Rc::new(std::cell::RefCell::new(input))),
                                 Some(std::rc::Rc::new(std::cell::RefCell::new(output))),
diff --git a/crates/shirabe/src/factory.rs b/crates/shirabe/src/factory.rs
index 975c558..78aa7ea 100644
--- a/crates/shirabe/src/factory.rs
+++ b/crates/shirabe/src/factory.rs
@@ -4,6 +4,7 @@ use indexmap::IndexMap;
 
 use shirabe_external_packages::symfony::console::formatter::OutputFormatter;
 use shirabe_external_packages::symfony::console::formatter::OutputFormatterStyle;
+use shirabe_external_packages::symfony::console::formatter::OutputFormatterStyleInterface;
 use shirabe_external_packages::symfony::console::output::ConsoleOutput;
 use shirabe_php_shim::{
     InvalidArgumentException, PATHINFO_EXTENSION, PHP_EOL, PHP_OS, Phar, PhpMixed,
@@ -405,15 +406,19 @@ impl Factory {
         }
     }
 
-    pub fn create_additional_styles() -> IndexMap<String, OutputFormatterStyle> {
-        let mut styles: IndexMap<String, OutputFormatterStyle> = IndexMap::new();
+    pub fn create_additional_styles() -> IndexMap<String, Box<dyn OutputFormatterStyleInterface>> {
+        let mut styles: IndexMap<String, Box<dyn OutputFormatterStyleInterface>> = IndexMap::new();
         styles.insert(
             "highlight".to_string(),
-            OutputFormatterStyle::new(Some("red"), None, Some(vec![])),
+            Box::new(OutputFormatterStyle::new(Some("red"), None, vec![])),
         );
         styles.insert(
             "warning".to_string(),
-            OutputFormatterStyle::new(Some("black"), Some("yellow"), Some(vec![])),
+            Box::new(OutputFormatterStyle::new(
+                Some("black"),
+                Some("yellow"),
+                vec![],
+            )),
         );
         styles
     }
@@ -423,10 +428,11 @@ impl Factory {
         let formatter = OutputFormatter::new(false, styles);
 
         ConsoleOutput::new(
-            shirabe_external_packages::symfony::console::output::output_interface::VERBOSITY_NORMAL,
+            Some(shirabe_external_packages::symfony::console::output::output_interface::VERBOSITY_NORMAL),
             None,
             Some(std::rc::Rc::new(std::cell::RefCell::new(formatter))),
         )
+        .expect("ConsoleOutput::new does not fail for stdout/stderr streams")
     }
 
     /// Creates a Composer instance
diff --git a/crates/shirabe/src/installer/suggested_packages_reporter.rs b/crates/shirabe/src/installer/suggested_packages_reporter.rs
index 65977ac..875fdc6 100644
--- a/crates/shirabe/src/installer/suggested_packages_reporter.rs
+++ b/crates/shirabe/src/installer/suggested_packages_reporter.rs
@@ -201,6 +201,7 @@ impl SuggestedPackagesReporter {
 
     fn escape_output(&self, string: &str) -> String {
         OutputFormatter::escape(&self.remove_control_characters(string))
+            .expect("OutputFormatter::escape does not fail")
     }
 
     fn remove_control_characters(&self, string: &str) -> String {
diff --git a/crates/shirabe/src/io/buffer_io.rs b/crates/shirabe/src/io/buffer_io.rs
index 988c153..8c10dee 100644
--- a/crates/shirabe/src/io/buffer_io.rs
+++ b/crates/shirabe/src/io/buffer_io.rs
@@ -6,11 +6,11 @@ use shirabe_external_packages::composer::pcre::Preg;
 use shirabe_external_packages::symfony::console::formatter::OutputFormatterInterface;
 use shirabe_external_packages::symfony::console::helper::HelperInterface;
 use shirabe_external_packages::symfony::console::helper::HelperSet;
+use shirabe_external_packages::symfony::console::helper::HelperSetKey;
 use shirabe_external_packages::symfony::console::helper::QuestionHelper;
 use shirabe_external_packages::symfony::console::input::InputInterface;
 use shirabe_external_packages::symfony::console::input::StringInput;
 use shirabe_external_packages::symfony::console::output::OutputInterface;
-use shirabe_external_packages::symfony::console::output::StreamOutput;
 use shirabe_php_shim::{
     PHP_EOL, PhpMixed, RuntimeException, fopen, fseek, fwrite, rewind, stream_get_contents,
     strip_tags,
@@ -27,7 +27,7 @@ impl BufferIO {
         verbosity: i64,
         formatter: Option<Box<dyn OutputFormatterInterface>>,
     ) -> Result<Self> {
-        let mut input_obj = StringInput::new(&input);
+        let mut input_obj = StringInput::new(&input)?;
         input_obj.set_interactive(false);
 
         let stream = fopen("php://memory", "rw");
@@ -39,21 +39,34 @@ impl BufferIO {
             .into());
         }
 
-        let decorated = formatter.as_ref().map_or(false, |f| f.is_decorated());
-        // TODO(phase-c): wire StreamOutput as the output. The console tree merge made StreamOutput
-        // implement the unified OutputInterface; StreamOutput::new is still a stub.
+        let _decorated = formatter.as_ref().map_or(false, |f| f.is_decorated());
+        // TODO(phase-c): wire StreamOutput as the output. StreamOutput::new requires a
+        // PhpResource, but `fopen` here yields a PhpMixed; PhpMixed has no resource variant,
+        // so the stream cannot be passed through yet (same PhpResource/PhpMixed gap noted in
+        // QuestionHelper). The constructed StreamOutput is therefore not wired as the output.
+        // formatter, stream and verbosity feed the pending StreamOutput::new wiring below.
         let _ = formatter;
-        let _ = StreamOutput::new(stream, verbosity, Some(decorated));
+        let _ = stream;
+        let _ = verbosity;
         let output: std::rc::Rc<std::cell::RefCell<dyn OutputInterface>> =
-            todo!("wire StreamOutput as the ConsoleIO output");
+            todo!("wire StreamOutput as the ConsoleIO output (needs PhpResource stream)");
+
+        let question_helper: std::rc::Rc<std::cell::RefCell<dyn HelperInterface>> =
+            std::rc::Rc::new(std::cell::RefCell::new(QuestionHelper::default()));
+        let mut helpers: indexmap::IndexMap<
+            HelperSetKey,
+            std::rc::Rc<std::cell::RefCell<dyn HelperInterface>>,
+        > = indexmap::IndexMap::new();
+        helpers.insert(HelperSetKey::Int(0), question_helper);
+        let helper_set = std::rc::Rc::new(std::cell::RefCell::new(HelperSet::default()));
+        HelperSet::new(&helper_set, helpers);
+        let helper_set = helper_set.borrow().clone();
 
-        let helpers: Vec<std::rc::Rc<std::cell::RefCell<dyn HelperInterface>>> =
-            vec![std::rc::Rc::new(std::cell::RefCell::new(QuestionHelper))];
         let inner = ConsoleIO::new(
             std::rc::Rc::new(std::cell::RefCell::new(input_obj))
                 as std::rc::Rc<std::cell::RefCell<dyn InputInterface>>,
             output,
-            HelperSet::new(helpers),
+            helper_set,
         );
 
         Ok(Self { inner })
diff --git a/crates/shirabe/src/io/console_io.rs b/crates/shirabe/src/io/console_io.rs
index 18287e3..2371dfa 100644
--- a/crates/shirabe/src/io/console_io.rs
+++ b/crates/shirabe/src/io/console_io.rs
@@ -10,6 +10,7 @@ use shirabe_external_packages::symfony::console::helper::ProgressBar;
 use shirabe_external_packages::symfony::console::helper::QuestionHelper;
 use shirabe_external_packages::symfony::console::helper::Table;
 use shirabe_external_packages::symfony::console::input::InputInterface;
+use shirabe_external_packages::symfony::console::output::ConsoleOutput;
 use shirabe_external_packages::symfony::console::output::ConsoleOutputInterface;
 use shirabe_external_packages::symfony::console::output::output_interface::{
     self as output_interface, OutputInterface,
@@ -17,9 +18,8 @@ use shirabe_external_packages::symfony::console::output::output_interface::{
 use shirabe_external_packages::symfony::console::question::ChoiceQuestion;
 use shirabe_external_packages::symfony::console::question::Question;
 use shirabe_php_shim::{
-    PhpMixed, array_filter, array_keys, array_search, count, function_exists, implode, in_array,
-    is_array, is_string, mb_check_encoding, mb_convert_encoding, microtime, sprintf, str_repeat,
-    strip_tags, strlen,
+    AsAny, PhpMixed, array_search, function_exists, implode, in_array, is_array, is_string,
+    mb_check_encoding, mb_convert_encoding, microtime, sprintf, str_repeat, strip_tags, strlen,
 };
 use std::cell::RefCell;
 
@@ -129,9 +129,18 @@ impl ConsoleIO {
             messages
         };
 
-        if stderr && let Some(console_output) = self.output.borrow().as_console_output_interface() {
-            console_output.get_error_output().borrow().write(
-                &Self::to_string_list(&messages).join(if newline { "\n" } else { "" }),
+        let error_output = if stderr {
+            let output = self.output.borrow();
+            (*output)
+                .as_any()
+                .downcast_ref::<ConsoleOutput>()
+                .map(|console_output| console_output.get_error_output())
+        } else {
+            None
+        };
+        if let Some(error_output) = error_output {
+            error_output.borrow().write(
+                &[Self::to_string_list(&messages).join(if newline { "\n" } else { "" })],
                 newline,
                 sf_verbosity,
             );
@@ -145,7 +154,7 @@ impl ConsoleIO {
         }
 
         self.output.borrow().write(
-            &Self::to_string_list(&messages).join(if newline { "\n" } else { "" }),
+            &[Self::to_string_list(&messages).join(if newline { "\n" } else { "" })],
             newline,
             sf_verbosity,
         );
@@ -239,7 +248,8 @@ impl ConsoleIO {
     }
 
     pub fn get_progress_bar(&self, max: i64) -> ProgressBar {
-        ProgressBar::new(self.get_error_output(), max)
+        // PHP ProgressBar::__construct default $minSecondsBetweenRedraws = 1 / 25.
+        ProgressBar::new(self.get_error_output(), max, 1.0 / 25.0)
     }
 
     pub fn get_table(&self) -> Table {
@@ -247,8 +257,14 @@ impl ConsoleIO {
     }
 
     fn get_error_output(&self) -> std::rc::Rc<std::cell::RefCell<dyn OutputInterface>> {
-        if let Some(console_output) = self.output.borrow().as_console_output_interface() {
-            return console_output.get_error_output();
+        let output = self.output.borrow();
+        let error_output = (*output)
+            .as_any()
+            .downcast_ref::<ConsoleOutput>()
+            .map(|console_output| console_output.get_error_output());
+        drop(output);
+        if let Some(error_output) = error_output {
+            return error_output;
         }
 
         self.output.clone()
@@ -358,6 +374,31 @@ impl ConsoleIO {
             _ => vec![],
         }
     }
+
+    /// Resolves the "question" helper and delegates to `QuestionHelper::ask`.
+    ///
+    /// PHP: `$this->helperSet->get('question')->ask($this->input, $this->getErrorOutput(), $question)`.
+    /// `HelperSet::get` and `QuestionHelper::ask` both surface PHP exceptions; ConsoleIO does not
+    /// catch them, so an unrecoverable error here is a PHP fatal. The double `Result` is collapsed:
+    /// the outer `anyhow::Result` (fatal) and the inner `MissingInputException` (unhandled, hence
+    /// also fatal in PHP) both abort.
+    fn ask_question(&self, question: &Question) -> PhpMixed {
+        let helper_rc = self
+            .helper_set
+            .get("question")
+            .expect("the \"question\" helper is always registered");
+        let error_output = self.get_error_output();
+        let mut helper = helper_rc.borrow_mut();
+        let question_helper = (*helper)
+            .as_any_mut()
+            .downcast_mut::<QuestionHelper>()
+            .expect("the \"question\" helper is a QuestionHelper");
+        let mut input = self.input.borrow_mut();
+        question_helper
+            .ask(&mut *input, error_output, question)
+            .expect("QuestionHelper::ask raised a fatal error")
+            .expect("QuestionHelper::ask returned no input")
+    }
 }
 
 impl IOInterfaceImmutable for ConsoleIO {
@@ -434,7 +475,6 @@ impl IOInterfaceImmutable for ConsoleIO {
     }
 
     fn ask(&self, question: String, default: PhpMixed) -> PhpMixed {
-        let helper = self.helper_set.get::<QuestionHelper>("question");
         let sanitized_question = Self::sanitize(PhpMixed::String(question), true)
             .as_string()
             .unwrap_or("")
@@ -444,15 +484,12 @@ impl IOInterfaceImmutable for ConsoleIO {
         } else {
             Some(default)
         };
-        let question = Question::new(&sanitized_question, sanitized_default);
+        let question = Question::new(sanitized_question, sanitized_default);
 
-        helper
-            .borrow()
-            .ask(self.input.clone(), self.get_error_output(), &question)
+        self.ask_question(&question)
     }
 
     fn ask_confirmation(&self, question: String, default: bool) -> bool {
-        let helper = self.helper_set.get::<QuestionHelper>("question");
         let sanitized = Self::sanitize(PhpMixed::String(question), true)
             .as_string()
             .unwrap_or("")
@@ -464,11 +501,7 @@ impl IOInterfaceImmutable for ConsoleIO {
             "/^no?$/i".to_string(),
         );
 
-        let result = helper.borrow().ask(
-            self.input.clone(),
-            self.get_error_output(),
-            question.inner(),
-        );
+        let result = self.ask_question(question.inner());
         result.as_bool().unwrap_or(false)
     }
 
@@ -488,18 +521,33 @@ impl IOInterfaceImmutable for ConsoleIO {
         } else {
             Some(default)
         };
-        let mut question = Question::new(&sanitized_question, sanitized_default);
-        // Question::set_validator takes Fn(Option<PhpMixed>) -> Result<PhpMixed>; adapt the
-        // None answer to PHP's null and forward the validator's Result unchanged.
-        let adapted: Box<dyn Fn(Option<PhpMixed>) -> anyhow::Result<PhpMixed>> =
-            Box::new(move |answer: Option<PhpMixed>| validator(answer.unwrap_or(PhpMixed::Null)));
+        let mut question = Question::new(sanitized_question, sanitized_default);
+        // Question::set_validator takes Fn(Option<PhpMixed>) -> Result<PhpMixed, InvalidArgumentException>;
+        // adapt the None answer to PHP's null and translate the validator's anyhow error into the
+        // InvalidArgumentException the Question validator type expects (QuestionHelper retries on it).
+        let adapted: Box<
+            dyn Fn(
+                Option<PhpMixed>,
+            ) -> Result<
+                PhpMixed,
+                shirabe_external_packages::symfony::console::exception::InvalidArgumentException,
+            >,
+        > = Box::new(move |answer: Option<PhpMixed>| {
+            validator(answer.unwrap_or(PhpMixed::Null)).map_err(|e| {
+                shirabe_external_packages::symfony::console::exception::InvalidArgumentException(
+                    shirabe_php_shim::InvalidArgumentException {
+                        message: e.to_string(),
+                        code: 0,
+                    },
+                )
+            })
+        });
         question.set_validator(Some(adapted));
-        question.set_max_attempts(attempts);
+        question
+            .set_max_attempts(attempts)
+            .map_err(|e| anyhow::anyhow!(e.0.message))?;
 
-        let helper = self.helper_set.get::<QuestionHelper>("question");
-        Ok(helper
-            .borrow()
-            .ask(self.input.clone(), self.get_error_output(), &question))
+        Ok(self.ask_question(&question))
     }
 
     fn ask_and_hide_answer(&self, question: String) -> Option<String> {
@@ -507,13 +555,13 @@ impl IOInterfaceImmutable for ConsoleIO {
             .as_string()
             .unwrap_or("")
             .to_string();
-        let mut question = Question::new(&sanitized_question, Some(PhpMixed::Null));
-        question.set_hidden(true);
+        let mut question = Question::new(sanitized_question, Some(PhpMixed::Null));
+        // setHidden only throws when an autocompleter is set, which is not the case here.
+        question
+            .set_hidden(true)
+            .expect("a freshly constructed question has no autocompleter");
 
-        let helper = self.helper_set.get::<QuestionHelper>("question");
-        let result = helper
-            .borrow()
-            .ask(self.input.clone(), self.get_error_output(), &question);
+        let result = self.ask_question(&question);
         result.as_string().map(|s| s.to_string())
     }
 
@@ -533,35 +581,45 @@ impl IOInterfaceImmutable for ConsoleIO {
                 .map(|s| Box::new(PhpMixed::String(s)))
                 .collect(),
         );
-        let _helper = self.helper_set.get::<QuestionHelper>("question");
+        let _helper = self
+            .helper_set
+            .get("question")
+            .expect("the \"question\" helper is always registered");
         let sanitized_question = Self::sanitize(PhpMixed::String(question), true)
             .as_string()
             .unwrap_or("")
             .to_string();
-        // TODO(phase-b): ChoiceQuestion::new expects Vec<PhpMixed>; collect from the
-        // sanitized PhpMixed::List.
+        // ChoiceQuestion::new expects an IndexMap<String, Box<PhpMixed>>; project the
+        // sanitized choice list/map into the keyed form, preserving keys.
         let sanitized_choices_mixed = Self::sanitize(choices.clone(), true);
-        let sanitized_choices: Vec<PhpMixed> = match sanitized_choices_mixed {
-            PhpMixed::List(l) => l.into_iter().map(|b| *b).collect(),
-            PhpMixed::Array(a) => a.into_values().map(|b| *b).collect(),
-            other => vec![other],
+        let sanitized_choices: IndexMap<String, Box<PhpMixed>> = match sanitized_choices_mixed {
+            PhpMixed::List(l) => l
+                .into_iter()
+                .enumerate()
+                .map(|(i, b)| (i.to_string(), b))
+                .collect(),
+            PhpMixed::Array(a) => a,
+            other => indexmap! { "0".to_string() => Box::new(other) },
         };
         let sanitized_default = if is_string(&default) {
             Some(Self::sanitize(default, true))
         } else {
             Some(default)
         };
+        // Empty choices raise a LogicException (programmer error in PHP).
         let mut question =
-            ChoiceQuestion::new(&sanitized_question, sanitized_choices, sanitized_default);
+            ChoiceQuestion::new(sanitized_question, sanitized_choices, sanitized_default)
+                .expect("select() always provides at least one choice");
         // PHP: IOInterface requires false, and Question requires null or int
-        let max_attempts = match attempts {
+        let _max_attempts = match attempts {
             PhpMixed::Bool(false) => None,
             PhpMixed::Int(i) => Some(i),
             _ => None,
         };
-        // ChoiceQuestion delegates set_max_attempts to its inner Question.
-        question.0.set_max_attempts(max_attempts);
-        question.set_error_message(&error_message);
+        // TODO(phase-c): PHP calls $question->setMaxAttempts($attempts), inherited from Question.
+        // ChoiceQuestion (shirabe-external-packages) keeps its inner Question private and exposes
+        // no setMaxAttempts passthrough, so the attempts cannot be propagated here yet. See report.
+        question.set_error_message(error_message);
         question.set_multiselect(multiselect);
 
         // TODO(phase-c): QuestionHelper::ask takes a concrete `&Question`, but PHP passes a
diff --git a/crates/shirabe/src/question/strict_confirmation_question.rs b/crates/shirabe/src/question/strict_confirmation_question.rs
index 5ce32f2..725005a 100644
--- a/crates/shirabe/src/question/strict_confirmation_question.rs
+++ b/crates/shirabe/src/question/strict_confirmation_question.rs
@@ -1,6 +1,5 @@
 //! ref: composer/src/Composer/Question/StrictConfirmationQuestion.php
 
-use anyhow::Result;
 use shirabe_external_packages::composer::pcre::Preg;
 use shirabe_external_packages::symfony::console::exception::InvalidArgumentException;
 use shirabe_external_packages::symfony::console::question::Question;
@@ -19,7 +18,7 @@ impl StrictConfirmationQuestion {
         true_answer_regex: String,
         false_answer_regex: String,
     ) -> Self {
-        let inner = Question::new(&question, Some(PhpMixed::Bool(default)));
+        let inner = Question::new(question, Some(PhpMixed::Bool(default)));
         let mut this = Self {
             inner,
             true_answer_regex,
@@ -36,19 +35,19 @@ impl StrictConfirmationQuestion {
         &self.inner
     }
 
-    fn get_default_normalizer(&self) -> Box<dyn Fn(&PhpMixed) -> PhpMixed> {
+    fn get_default_normalizer(&self) -> Box<dyn Fn(PhpMixed) -> PhpMixed> {
         let default = self.inner.get_default();
         let true_regex = self.true_answer_regex.clone();
         let false_regex = self.false_answer_regex.clone();
 
-        Box::new(move |answer: &PhpMixed| {
-            if is_bool(answer) {
-                return answer.clone();
+        Box::new(move |answer: PhpMixed| {
+            if is_bool(&answer) {
+                return answer;
             }
-            if empty(answer) && default.as_ref().is_some_and(|d| !empty(d)) {
-                return default.clone().unwrap_or(PhpMixed::Null);
+            if empty(&answer) && !empty(&default) {
+                return default.clone();
             }
-            if let PhpMixed::String(s) = answer {
+            if let PhpMixed::String(s) = &answer {
                 if Preg::is_match(&true_regex, s).unwrap_or(false) {
                     return PhpMixed::Bool(true);
                 }
@@ -60,15 +59,18 @@ impl StrictConfirmationQuestion {
         })
     }
 
-    fn get_default_validator(&self) -> Box<dyn Fn(Option<PhpMixed>) -> Result<PhpMixed>> {
+    fn get_default_validator(
+        &self,
+    ) -> Box<dyn Fn(Option<PhpMixed>) -> Result<PhpMixed, InvalidArgumentException>> {
         Box::new(|answer: Option<PhpMixed>| {
             let answer = answer.unwrap_or(PhpMixed::Null);
             if !is_bool(&answer) {
-                return Err(InvalidArgumentException {
-                    message: "Please answer yes, y, no, or n.".to_string(),
-                    code: 0,
-                }
-                .into());
+                return Err(InvalidArgumentException(
+                    shirabe_php_shim::InvalidArgumentException {
+                        message: "Please answer yes, y, no, or n.".to_string(),
+                        code: 0,
+                    },
+                ));
             }
             Ok(answer)
         })