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1. adk-bot

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   agent engine[Component] This issue is related to Vertex AI Agent Engine[Component] This issue is related to Vertex AI Agent Engine

   on Nov 24, 2025
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   yeesian

   on Nov 24, 2025
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4. adk-bot commented on Dec 3, 2025

   

   adk-bot

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   Notification: The author has updated the issue description. Maintainers, please review.
5. adk-bot commented on Dec 19, 2025

   

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   This issue has been automatically marked as stale because it has not had recent activity for 7 days after a maintainer requested clarification. It will be closed if no further activity occurs within 7 days.
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   stale[Status] Issues which have been marked inactive since there is no user response[Status] Issues which have been marked inactive since there is no user response

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7. guanerdan commented on Dec 22, 2025

   

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   still waiting....
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   stale[Status] Issues which have been marked inactive since there is no user response[Status] Issues which have been marked inactive since there is no user response

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9. llalitkumarrr commented on Jan 7, 2026

   

   llalitkumarrr

   on Jan 7, 2026

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   Hello @guanerdan ,

   Apologies for the delayed response. To help us investigate this further, could you please provide more details? Specifically, we would appreciate the full error message, steps to reproduce the issue, and a minimal code example. This will allow us to assist you more effectively.
10. adk-bot commented on Jan 15, 2026

    

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    This issue has been automatically marked as stale because it has not had recent activity for 7 days after a maintainer requested clarification. It will be closed if no further activity occurs within 7 days.
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    request clarification[Status] The maintainer need clarification or more information from the author[Status] The maintainer need clarification or more information from the author

    on Jan 15, 2026
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13. adk-bot commented on Jan 22, 2026

    

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    This issue has been automatically marked as stale because it has not had recent activity for 7 days after a maintainer requested clarification. It will be closed if no further activity occurs within 7 days.
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15. jbets4 commented on Feb 17, 2026

    

    jbets4

    on Feb 17, 2026

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    Attached above is a fix for this issue: #4516
16. surajksharma07

    assigned

    llalitkumarrr

    on Feb 23, 2026
17. llalitkumarrr commented on Feb 24, 2026

    

    llalitkumarrr

    on Feb 24, 2026

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    Thank you @Sudhendra and @jbets4 for your contribution your PR is being reviewed and we appreciate your patience.
18. llalitkumarrr

    assigned

    rohityan

    on Feb 24, 2026
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    needs review[Status] The PR/issue is awaiting review from the maintainer[Status] The PR/issue is awaiting review from the maintainer

    on Apr 22, 2026
20. Number531 commented on Apr 24, 2026

    

    Number531

    on Apr 24, 2026

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    Confirming this issue still reproduces on ADK v1.27.2 and through v1.31.1 — affected code paths unchanged from v1.19.0 as described in the original report.

    Additional data points from production deployment (April 2026):

    • Bug 2 (contents vs content): confirmed via live testing. input_files arrive in the sandbox with declared filename but zero bytes; pandas.read_csv raises EmptyDataError, typically surfaced to callers as a vague "file is empty" error rather than a clear field-name mismatch. One-word fix at agent_engine_sandbox_code_executor.py:147 (change 'contents' → 'content') resolves this completely.

    • Bug 1 (stdout/stderr via msg_out/msg_err): also confirmed. Our patched reader extracts:

      json_output_data = json.loads(output.data.decode("utf-8"))
      stdout = json_output_data.get("msg_out", "")
      stderr = json_output_data.get("msg_err", "")

    • Open question on mimeType vs mime_type: in our deployment, sending mimeType (camelCase, matching current ADK behavior) has not produced observable failures — chart files are returned correctly in output_files. Either the Vertex SDK is field-name-normalizing transparently, or this mismatch only matters for specific mime-type-sensitive code paths we haven't exercised. Has anyone hit a concrete failure traceable to the mimeType/mime_type key specifically?

    Reference patch: utils/sandbox_executor_patched.py — subclass of AgentEngineSandboxCodeExecutor applying both fixes inline. In continuous production use since April 2026; removes all observed failure modes from this issue.

    Would be glad to submit a PR with these fixes (both are narrow, well-tested). Let me know if that's useful.
21. rohityan

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    on May 12, 2026
23. mahesh-github commented on May 28, 2026

    

    mahesh-github

    on May 28, 2026

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    Can I check on this issue
24. wukath

    added 3 commits that reference this issue on Jun 16, 2026

    fix(code_executors): send correct field names for sandbox input files

    ...

    This issue will close once commit 55975f3 is merged into the 'main' branch.

    55975f3

    fix(code_executors): send correct field names for sandbox input files

    ...

    This issue will close once commit 4a4a09e is merged into the 'main' branch.

    4a4a09e

    fix(code_executors): send correct field names for sandbox input files

    ...

    This issue will close once commit 20b6918 is merged into the 'main' branch.

    20b6918
25. copybara-service

    closed this as completedin 2b7e08aon Jun 17, 2026
26. doughayden

    added a commit that references this issue on Jun 17, 2026

    fix: send correct field names for sandbox input files

    ...

    This issue will close once commit 2b7e08a is merged into the 'main' branch.

    2b7e08a
27. FrigaZzz

    added a commit that references this issue on Aug 11, 2026

    fix: send correct field names for sandbox input files

    ...

    This issue will close once commit c628d04 is merged into the 'main' branch.

    c628d04