diff --git a/libraries/deno-commons-mod.ts b/libraries/deno-commons-mod.ts
index 3ae74d5..243bdde 100644
--- a/libraries/deno-commons-mod.ts
+++ b/libraries/deno-commons-mod.ts
@@ -105,6 +105,25 @@ export function isOn(val: string | undefined | null): boolean {
         lowerVal === "true";
 }
 
+export function isUndefined(val: any): boolean {
+    return typeof val === "undefined";
+}
+
+export function isUndefinedOrNull(val: any): boolean {
+    return isUndefined(val) || (val === null);
+}
+
+export function parseIntVal(val: any, defaultVal: number): number {
+    if (isUndefinedOrNull(val)) {
+        return defaultVal;
+    }
+    const parsedVal = parseInt(val, 10);
+    if (isNaN(parsedVal)) {
+        return defaultVal;
+    }
+    return parsedVal;
+}
+
 export function getEnv(envKey: string): string | null {
     const homeDir = getHomeDir();
     if ((homeDir !== null) && envKey) {
diff --git a/single-scripts/tree.ts b/single-scripts/tree.ts
index a503c6c..bef3a10 100755
--- a/single-scripts/tree.ts
+++ b/single-scripts/tree.ts
@@ -4,8 +4,10 @@ import {
     formatSize2,
     joinPath,
     log,
+    parseIntVal,
     term,
-} from "https://global.hatter.ink/script/get/@16/deno-commons-mod.ts";
+} from "https://global.hatter.ink/script/get/@21/deno-commons-mod.ts";
+import {parseArgs} from "jsr:@std/cli/parse-args";
 
 const defaultSkipDirs = [
     ".git",
@@ -30,10 +32,10 @@ async function listDir(
             }
             const fullName = joinPath(dir, dirEntry.name);
             if (dirEntry.isDirectory) {
-                const showNextDepth = depth <= maxDepth;
+                const showNextDepth = (depth + 1) <= maxDepth;
                 console.log(
                     `${tab}- [${dirEntry.name}]${
-                        showNextDepth ? "" : " ...more dirs..."
+                        showNextDepth ? "" : term.blue(" \t[...more dirs...]")
                     }`,
                 );
                 if (showNextDepth) {
@@ -46,7 +48,9 @@ async function listDir(
                 } else if (dirEntry.isFile) {
                     const fileInfo = await Deno.stat(fullName);
                     if (fileInfo.size > 1024 * 1024) {
-                        fileDesc = term.red(` - ${formatSize2(fileInfo.size)}`);
+                        fileDesc = term.red(
+                            ` - ${formatSize2(fileInfo.size)}`,
+                        );
                     } else {
                         fileDesc = term.yellow(
                             ` - ${formatSize2(fileInfo.size)}`,
@@ -54,7 +58,7 @@ async function listDir(
                     }
                 }
                 console.log(
-                    `${tab}- ${term.green(dirEntry.name)} ${fileDesc}`,
+                    `${tab}- ${term.green(dirEntry.name)} \t${fileDesc}`,
                 );
             }
         }
@@ -64,14 +68,30 @@ async function listDir(
 }
 
 async function main(): Promise<void> {
-    let baseDir = ".";
-    if (Deno.args.length > 0) {
-        baseDir = Deno.args[0];
+    const flags = parseArgs(Deno.args, {
+        boolean: ["help"],
+        number: ["depth"],
+    });
+    if (flags.help) {
+        console.log(`Help massage for tree.ts
+
+tree.ts [parameters] <dir>
+
+--depth 3     - Directory depth
+<dir>         - default '.' current dir`);
+        return;
     }
-    await listDir(baseDir, 0, 10);
+
+    const maxDepth = parseIntVal(flags.depth, 10);
+
+    let baseDir = ".";
+    if (flags._.length > 0) {
+        baseDir = flags._[0];
+    }
+    await listDir(baseDir, 0, maxDepth);
 }
 
 main().catch((e) => log.error(e));
 
-// @SCRIPT-SIGNATURE-V1: yk-r1.ES256.20260127T005403+08:00.MEUCIFwdYkm52+V1DPMbAfoe
-// b9/2d4Lnf0lfVqFbE3S17N+FAiEA8ySrI+cc6aKtr2eyy1veHPbTxPHoh57Cg3ozdYrzJfI=
+// @SCRIPT-SIGNATURE-V1: yk-r1.ES256.20260130T005327+08:00.MEUCICFLf8ZlGN4bSzCiRBlW
+// AnPVvd4by4hrwq6ZZPaN/cY6AiEAtyx0B6/EINNU2ilPoY1g0+LGc5FylLEJ5Ybn+pkpn8I=