diff --git a/package-lock.json b/package-lock.json
index 9af10d5bb..4bb2dfe86 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -23,6 +23,7 @@
 				"husky": "9.1.7",
 				"jiti": "2.7.0",
 				"shx": "0.4.0",
+				"tsx": "4.22.1",
 				"typescript": "5.9.3"
 			},
 			"engines": {
@@ -5086,6 +5087,25 @@
 			"integrity": "sha512-oJFu94HQb+KVduSUQL7wnpmqnfmLsOA/nAh6b6EH0wCEoK0/mPeXU6c3wKDV83MkOuHPRHtSXKKU99IBazS/2w==",
 			"license": "0BSD"
 		},
+		"node_modules/tsx": {
+			"version": "4.22.1",
+			"resolved": "https://registry.npmjs.org/tsx/-/tsx-4.22.1.tgz",
+			"integrity": "sha512-TvncJykhxAzFCk0VQZKBTClall4Pm7qXDSodb6uxi8QFa8X8mT6ABjxxsQ2opDRYxG7AzcRWXaFtruz5HJKuWg==",
+			"dev": true,
+			"license": "MIT",
+			"dependencies": {
+				"esbuild": "~0.28.0"
+			},
+			"bin": {
+				"tsx": "dist/cli.mjs"
+			},
+			"engines": {
+				"node": ">=18.0.0"
+			},
+			"optionalDependencies": {
+				"fsevents": "~2.3.3"
+			}
+		},
 		"node_modules/tunnel-agent": {
 			"version": "0.6.0",
 			"resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
diff --git a/package.json b/package.json
index daa4b4e51..7a62003d7 100644
--- a/package.json
+++ b/package.json
@@ -43,6 +43,7 @@
 		"husky": "9.1.7",
 		"jiti": "2.7.0",
 		"shx": "0.4.0",
+		"tsx": "4.22.1",
 		"typescript": "5.9.3"
 	},
 	"engines": {
diff --git a/pi-test.sh b/pi-test.sh
index 37ff01149..b726dd412 100755
--- a/pi-test.sh
+++ b/pi-test.sh
@@ -54,4 +54,4 @@ if [[ "$NO_ENV" == "true" ]]; then
   echo "Running without API keys..."
 fi
 
-node "$SCRIPT_DIR/packages/coding-agent/src/cli.ts" ${ARGS[@]+"${ARGS[@]}"}
+"$SCRIPT_DIR/node_modules/.bin/tsx" --tsconfig "$SCRIPT_DIR/tsconfig.json" "$SCRIPT_DIR/packages/coding-agent/src/cli.ts" ${ARGS[@]+"${ARGS[@]}"}