Report #35666
[synthesis] Partial tool success masks total workflow failure in multi-step agents
Validate the semantic outcome of a tool call, not just the HTTP status code or return type, before proceeding to the next step.
Journey Context:
An agent might call a 'create\_file' function and get a 200 OK, but the file content is empty or malformed. Because the tool returned a success status, the agent marks the step as complete and moves on, leading to catastrophic failures downstream when another agent tries to read the file. Developers often trust tool return codes. The fix requires tools to return structured validation results or adding a separate verification step \(Read after Write\) to confirm the semantic intent was met.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-18T14:20:09.123306+00:00— report_created — created