add omit md

cmd/root.go

@@ -69,6 +69,7 @@ Examples:
 	skipFrontend   bool
 	frontendOnly   bool
 	omitTest       bool
+	omitMd         bool
 )
 
 func Execute() {
@@ -92,6 +93,7 @@ func init() {
 	rootCmd.Flags().BoolVar(&skipFrontend, "skip-frontend", false, "omit frontend file types (.html, .css, .js, .ts, .vue, .svelte, etc.)")
 	rootCmd.Flags().BoolVar(&frontendOnly, "frontend-only", false, "include only frontend file types and README.md")
 	rootCmd.Flags().BoolVar(&omitTest, "omit-test", false, "exclude test files (Go *_test.go, Java *Test.java) and strip #[cfg(test)] blocks from Rust")
+	rootCmd.Flags().BoolVar(&omitMd, "omit-md", false, "omit all .md files except README.md")
 
 	rootCmd.MarkPersistentFlagRequired("output")
 }
@@ -132,6 +134,7 @@ func run(cmd *cobra.Command, args []string) error {
 		SkipFrontend:   skipFrontend,
 		FrontendOnly:   frontendOnly,
 		OmitTest:       omitTest,
+		OmitMd:         omitMd,
 	}
 
 	if singleFile != "" {

internal/config/config.go

@@ -81,6 +81,7 @@ type Config struct {
 	SkipFrontend   bool
 	FrontendOnly   bool
 	OmitTest       bool
+	OmitMd         bool
 }
 
 func PrintUsage() {
@@ -108,6 +109,7 @@ func Parse() (*Config, error) {
 		skipFrontend   bool
 		frontendOnly   bool
 		omitTest       bool
+		omitMd         bool
 	)
 
 	flag.StringVar(&input, "i", "", "single file input (append mode only)")
@@ -125,6 +127,7 @@ func Parse() (*Config, error) {
 	flag.BoolVar(&skipFrontend, "skip-frontend", false, "omit frontend file types (.html, .css, .js, .ts, .vue, .svelte, etc.)")
 	flag.BoolVar(&frontendOnly, "frontend-only", false, "include only frontend file types and README.md")
 	flag.BoolVar(&omitTest, "omit-test", false, "exclude test files (Go *_test.go, Java *Test.java) and strip #[cfg(test)] blocks from Rust")
+	flag.BoolVar(&omitMd, "omit-md", false, "omit all .md files except README.md")
 
 	flag.Usage = PrintUsage
 	flag.Parse()
@@ -173,6 +176,7 @@ func Parse() (*Config, error) {
 		SkipFrontend:   skipFrontend,
 		FrontendOnly:   frontendOnly,
 		OmitTest:       omitTest,
+		OmitMd:         omitMd,
 	}
 
 	if input != "" {

internal/filter/filter.go

@@ -14,6 +14,7 @@ type Filter struct {
 	Ignores      []string
 	OmitTest     bool
 	FrontendOnly bool
+	OmitMd       bool
 }
 
 func (f *Filter) ShouldSkipDir(name string) bool {
@@ -45,6 +46,10 @@ func (f *Filter) ShouldSkipFile(path, name string, info os.FileInfo) bool {
 		return true
 	}
 
+	if f.OmitMd && isNonReadmeMarkdown(path, name) {
+		return true
+	}
+
 	if f.FrontendOnly && !isFrontendOrReadme(path, name) {
 		return true
 	}
@@ -63,6 +68,14 @@ func (f *Filter) ShouldSkipFile(path, name string, info os.FileInfo) bool {
 	return false
 }
 
+func isNonReadmeMarkdown(path, name string) bool {
+	ext := strings.ToLower(filepath.Ext(path))
+	if ext != ".md" && ext != ".markdown" {
+		return false
+	}
+	return !strings.EqualFold(name, "README.md")
+}
+
 func isFrontendOrReadme(path, name string) bool {
 	ext := strings.ToLower(filepath.Ext(path))
 	for _, fe := range config.FrontendExts {

internal/walker/walker.go

@@ -1,4 +1,3 @@
-// internal/walker/walker.go
 package walker
 
 import (
@@ -47,6 +46,7 @@ func processSingleFile(cfg *config.Config) (*Result, error) {
 		Ignores:      cfg.Ignores,
 		OmitTest:     cfg.OmitTest,
 		FrontendOnly: cfg.FrontendOnly,
+		OmitMd:       cfg.OmitMd,
 	}
 
 	if flt.ShouldSkipFile(cfg.AbsRoot, filepath.Base(cfg.AbsRoot), info) {
@@ -68,6 +68,7 @@ func walkDirectory(cfg *config.Config) (*Result, error) {
 		Ignores:      cfg.Ignores,
 		OmitTest:     cfg.OmitTest,
 		FrontendOnly: cfg.FrontendOnly,
+		OmitMd:       cfg.OmitMd,
 	}
 
 	result := &Result{AbsRoot: cfg.AbsRoot, OmitTest: cfg.OmitTest}