fix: use correct 'content' key in sandbox code executor input files

weiguangli-io · weiguangli-io · commit e4593b62a562 · 2026-04-27T17:47:26.000+08:00
Fixes #5500. The input file payload used 'contents' (plural) but the Vertex AI SDK reads 'content' (singular), causing uploaded files to arrive as zero bytes in the sandbox with no error raised.
diff --git a/src/google/adk/code_executors/agent_engine_sandbox_code_executor.py b/src/google/adk/code_executors/agent_engine_sandbox_code_executor.py
@@ -174,7 +174,7 @@ def execute_code(
       input_data['files'] = [
           {
               'name': f.name,
-              'contents': f.content,
+              'content': f.content,
               'mimeType': f.mime_type,
           }
           for f in code_execution_input.input_files

Original file line number	Diff line number	Diff line change
`@@ -174,7 +174,7 @@ def execute_code(`
`174`	`174`	`input_data['files'] = [`
`175`	`175`	`{`
`176`	`176`	`'name': f.name,`
`177`		`- 'contents': f.content,`
	`177`	`+ 'content': f.content,`
`178`	`178`	`'mimeType': f.mime_type,`
`179`	`179`	`}`
`180`	`180`	`for f in code_execution_input.input_files`