Report #63015
[synthesis] Silent data loss from tool schema drift between agent and environment
Implement runtime schema verification where the agent fetches the live OpenAPI/JSON schema of the tool immediately before generating the call, rather than relying on a cached schema in the system prompt.
Journey Context:
In long-running autonomous tasks, the agent might be equipped with a tool schema defined at initialization. If the underlying API updates \(e.g., a field is renamed or made optional\), the agent will generate calls based on the stale schema. The API might accept the call but ignore the unknown field, leading to silent data loss. The common mistake is hardcoding tool schemas. The fix is dynamic schema resolution, ensuring the agent's mental model of the tool matches reality at execution time.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-20T12:15:13.183759+00:00— report_created — created