diff --git a/src/lib/packaging/__tests__/helpers.test.ts b/src/lib/packaging/__tests__/helpers.test.ts
index b02e7ed0..efb8e88c 100644
--- a/src/lib/packaging/__tests__/helpers.test.ts
+++ b/src/lib/packaging/__tests__/helpers.test.ts
@@ -247,9 +247,9 @@ describe('resolveProjectPaths', () => {
 
   beforeAll(() => {
     root = mkdtempSync(join(tmpdir(), 'helpers-resolve-'));
-    // Create a minimal project structure with pyproject.toml
+    // Create a minimal project structure with pyproject.toml (source files live alongside it)
     writeFileSync(join(root, 'pyproject.toml'), '[project]\nname = "test"');
-    mkdirSync(join(root, 'src'), { recursive: true });
+    writeFileSync(join(root, 'main.py'), 'print("hello")');
   });
 
   afterAll(() => {
@@ -260,7 +260,7 @@ describe('resolveProjectPaths', () => {
     const paths = await resolveProjectPaths({ projectRoot: root });
     expect(paths.projectRoot).toBe(root);
     expect(paths.pyprojectPath).toBe(join(root, 'pyproject.toml'));
-    expect(paths.srcDir).toBe(join(root, 'src'));
+    expect(paths.srcDir).toBe(root);
   });
 
   it('uses agent name for build directory', async () => {
diff --git a/src/lib/packaging/helpers.ts b/src/lib/packaging/helpers.ts
index 100a373f..b2a2fe90 100644
--- a/src/lib/packaging/helpers.ts
+++ b/src/lib/packaging/helpers.ts
@@ -122,7 +122,7 @@ export async function resolveProjectPaths(options: PackageOptions = {}, agentNam
   const pyprojectPath = candidatePyproject;
 
   const projectRoot = options.projectRoot ? resolve(options.projectRoot) : dirname(pyprojectPath);
-  const srcDir = resolve(projectRoot, options.srcDir ?? 'src');
+  const srcDir = resolve(projectRoot, options.srcDir ?? '.');
   const artifactDir = resolve(options.artifactDir ?? join(projectRoot, CONFIG_DIR));
 
   // Simplified staging structure: <artifactDir>/<name>/staging
@@ -261,7 +261,7 @@ export function resolveProjectPathsSync(options: PackageOptions = {}, agentName?
 
   const pyprojectPath = candidatePyproject;
   const projectRoot = options.projectRoot ? resolve(options.projectRoot) : dirname(pyprojectPath);
-  const srcDir = resolve(projectRoot, options.srcDir ?? 'src');
+  const srcDir = resolve(projectRoot, options.srcDir ?? '.');
   const artifactDir = resolve(options.artifactDir ?? join(projectRoot, CONFIG_DIR));
 
   // Simplified staging structure: <artifactDir>/<name>/staging