diff --git a/package-lock.json b/package-lock.json
index c0b0b7f..910a720 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5148,13 +5148,13 @@
     },
     "packages/action": {
       "name": "@tokenometer/action",
-      "version": "0.0.1",
+      "version": "0.0.2",
       "license": "MIT",
       "dependencies": {
         "@actions/core": "^1.11.1",
         "@actions/exec": "^1.1.1",
         "@actions/github": "^6.0.0",
-        "@tokenometer/core": "0.0.1",
+        "@tokenometer/core": "0.0.2",
         "minimatch": "^10.2.5"
       },
       "devDependencies": {
@@ -5631,10 +5631,10 @@
     },
     "packages/cli": {
       "name": "tokenometer",
-      "version": "0.0.1",
+      "version": "0.0.2",
       "license": "MIT",
       "dependencies": {
-        "@tokenometer/core": "0.0.1"
+        "@tokenometer/core": "0.0.2"
       },
       "bin": {
         "tokenometer": "dist/index.js"
@@ -5647,7 +5647,7 @@
     },
     "packages/core": {
       "name": "@tokenometer/core",
-      "version": "0.0.1",
+      "version": "0.0.2",
       "license": "MIT",
       "dependencies": {
         "@anthropic-ai/sdk": "^0.95.0",
@@ -5662,12 +5662,12 @@
     },
     "packages/web": {
       "name": "@tokenometer/web",
-      "version": "0.0.1",
+      "version": "0.0.2",
       "license": "MIT",
       "dependencies": {
         "@anthropic-ai/sdk": "^0.40.0",
         "@google/generative-ai": "^0.21.0",
-        "@tokenometer/core": "0.0.1",
+        "@tokenometer/core": "0.0.2",
         "react": "^19.0.0",
         "react-dom": "^19.0.0"
       },
diff --git a/packages/action/package.json b/packages/action/package.json
index 48313b8..e6fd658 100644
--- a/packages/action/package.json
+++ b/packages/action/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tokenometer/action",
-  "version": "0.0.1",
+  "version": "0.0.2",
   "description": "GitHub Action that posts a sticky PR comment with prompt-cost diff.",
   "license": "MIT",
   "private": true,
@@ -13,7 +13,7 @@
     "@actions/core": "^1.11.1",
     "@actions/exec": "^1.1.1",
     "@actions/github": "^6.0.0",
-    "@tokenometer/core": "0.0.1",
+    "@tokenometer/core": "0.0.2",
     "minimatch": "^10.2.5"
   },
   "devDependencies": {
diff --git a/packages/cli/package.json b/packages/cli/package.json
index c4de1d4..443ce58 100644
--- a/packages/cli/package.json
+++ b/packages/cli/package.json
@@ -1,6 +1,6 @@
 {
   "name": "tokenometer",
-  "version": "0.0.1",
+  "version": "0.0.2",
   "description": "Empirical token-cost benchmarking CLI for LLM prompts. Tells you what your prompt actually costs across Claude, GPT-4o, and Gemini, in every format.",
   "license": "MIT",
   "author": "Faraazuddin Mohammed <mohdfaraaz1@gmail.com>",
@@ -49,7 +49,7 @@
     "clean": "rm -rf dist"
   },
   "dependencies": {
-    "@tokenometer/core": "0.0.1"
+    "@tokenometer/core": "0.0.2"
   },
   "devDependencies": {
     "@types/node": "^22.10.5",
diff --git a/packages/cli/src/index.ts b/packages/cli/src/index.ts
index 2a8f425..a18c5fc 100644
--- a/packages/cli/src/index.ts
+++ b/packages/cli/src/index.ts
@@ -1,11 +1,13 @@
 #!/usr/bin/env node
+import { realpathSync } from 'node:fs';
 import { readFile } from 'node:fs/promises';
+import { pathToFileURL } from 'node:url';
 import { tokenizeMatrix, tokenizeMatrixEmpirical } from '@tokenometer/core';
 import type { EmpiricalEnv } from '@tokenometer/core';
 import { HELP_TEXT, parseArgs } from './args.js';
 import { renderSummary, renderTable } from './render.js';
 
-const VERSION = '0.0.1';
+const VERSION = '0.0.2';
 
 const readEnv = (): EmpiricalEnv => {
   const env: EmpiricalEnv = {};
@@ -88,8 +90,17 @@ export const main = async (argv: readonly string[]): Promise<number> => {
   return 0;
 };
 
-const scriptUrl = `file://${process.argv[1]}`;
-if (import.meta.url === scriptUrl) {
+const isInvokedAsScript = (): boolean => {
+  const entry = process.argv[1];
+  if (!entry) return false;
+  try {
+    return pathToFileURL(realpathSync(entry)).href === import.meta.url;
+  } catch {
+    return false;
+  }
+};
+
+if (isInvokedAsScript()) {
   main(process.argv.slice(2)).then(
     (code) => process.exit(code),
     (err: unknown) => {
diff --git a/packages/core/package.json b/packages/core/package.json
index d83093f..a19d601 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tokenometer/core",
-  "version": "0.0.1",
+  "version": "0.0.2",
   "description": "Empirical token-cost benchmarking for LLM prompts — core library (tokenizers, format converters, rate matrix, empirical countTokens dispatch).",
   "license": "MIT",
   "author": "Faraazuddin Mohammed <mohdfaraaz1@gmail.com>",
diff --git a/packages/web/package.json b/packages/web/package.json
index c547def..d86c18c 100644
--- a/packages/web/package.json
+++ b/packages/web/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tokenometer/web",
-  "version": "0.0.1",
+  "version": "0.0.2",
   "description": "Browser playground for paste-and-compare prompt cost analysis.",
   "license": "MIT",
   "private": true,
@@ -13,7 +13,7 @@
   "dependencies": {
     "@anthropic-ai/sdk": "^0.40.0",
     "@google/generative-ai": "^0.21.0",
-    "@tokenometer/core": "0.0.1",
+    "@tokenometer/core": "0.0.2",
     "react": "^19.0.0",
     "react-dom": "^19.0.0"
   },