Fix CLI error handling and improve git status validation

- Add SilenceUsage to prevent help output on errors
- Add GetStatusDetails method to show which files are dirty
- Include direct commits in ProcessIncomingPRs for complete AI summaries

cmd/generate_changelog/internal/changelog/processing.go

@@ -228,6 +228,11 @@ func (g *Generator) validateGitStatus() error {
 	}
 
 	if !isClean {
+		// Get detailed status for better error message
+		statusDetails, statusErr := g.gitWalker.GetStatusDetails()
+		if statusErr == nil && statusDetails != "" {
+			return fmt.Errorf("working directory is not clean - please commit or stash changes before proceeding:\n%s", statusDetails)
+		}
 		return fmt.Errorf("working directory is not clean - please commit or stash changes before proceeding")
 	}
 

cmd/generate_changelog/internal/git/walker.go

@@ -426,6 +426,30 @@ func (w *Walker) IsWorkingDirectoryClean() (bool, error) {
 	return status.IsClean(), nil
 }
 
+// GetStatusDetails returns a detailed status of the working directory
+func (w *Walker) GetStatusDetails() (string, error) {
+	worktree, err := w.repo.Worktree()
+	if err != nil {
+		return "", fmt.Errorf("failed to get worktree: %w", err)
+	}
+
+	status, err := worktree.Status()
+	if err != nil {
+		return "", fmt.Errorf("failed to get git status: %w", err)
+	}
+
+	if status.IsClean() {
+		return "", nil
+	}
+
+	var details strings.Builder
+	for file, fileStatus := range status {
+		details.WriteString(fmt.Sprintf("  %c%c %s\n", fileStatus.Staging, fileStatus.Worktree, file))
+	}
+
+	return details.String(), nil
+}
+
 // AddFile adds a file to the git index
 func (w *Walker) AddFile(filename string) error {
 	worktree, err := w.repo.Worktree()

cmd/generate_changelog/main.go

@@ -21,7 +21,8 @@ var rootCmd = &cobra.Command{
 	Long: `A high-performance changelog generator that walks git history,
 collects version information and pull requests, and generates a
 comprehensive changelog in markdown format.`,
-	RunE: run,
+	RunE:         run,
+	SilenceUsage: true, // Don't show usage on errors
 }
 
 func init() {