Install shared reporting flags

internal/commandmeta/metadata.go

@@ -18,8 +18,10 @@ type Command struct {
 	Description string
 	Runnable    bool
 	Flags       []Flag
-	Arguments   []Argument
-	Children    []*Command
+	// CoreFlags are parsed by CommandKit but do not occupy consumer binding indexes.
+	CoreFlags []Flag
+	Arguments []Argument
+	Children  []*Command
 }
 
 // Argument describes one positional input for usage rendering.
@@ -41,6 +43,26 @@ type Flag struct {
 	Required bool
 }
 
+var reportingFlags = [...]Flag{
+	{Name: "quiet", Usage: "suppress substantive output and optional messages; keep failures visible", Default: "false", Boolean: true},
+	{Name: "verbose", Usage: "show warning and informational messages", Default: "false", Boolean: true},
+	{Name: "debug", Usage: "show debugging messages", Default: "false", Boolean: true},
+	{Name: "progress", Usage: "show progress messages", Default: "false", Boolean: true},
+}
+
+// ReportingFlags returns the flags shared by CommandKit's invocation reporter.
+func ReportingFlags() []Flag { return append([]Flag(nil), reportingFlags[:]...) }
+
+// IsReportingFlag reports whether name is reserved for a shared reporting flag.
+func IsReportingFlag(name string) bool {
+	for _, flag := range reportingFlags {
+		if flag.Name == name {
+			return true
+		}
+	}
+	return false
+}
+
 // FlagAlias maps one option spelling to a canonical flag spelling.
 type FlagAlias struct {
 	Source string
@@ -58,6 +80,7 @@ type HelpView struct {
 	EnteredPath    []string
 	CanonicalPath  []string
 	Discovery      bool
+	CoreFlags      []Flag
 	CommandAliases []CommandAlias
 	FlagAliases    []FlagAlias
 }