Report #85709
[synthesis] Semantic drift in accumulated function call results
Enforce immutable data contracts with versioned schemas for all inter-tool data flow; validate that field semantics remain constant across the agent session using schema registry patterns
Journey Context:
In long agent sessions, data passes through multiple transformation steps; an initial 'user\_id' field might be extracted from an email \(string\), then looked up in a database returning a numeric ID \(int\), then passed to a third tool expecting the original string format; the agent loses track of the semantic shift because intermediate steps 'worked.' The synthesis shows that type consistency is insufficient; semantic consistency \(what the field 'means'\) drifts through transformation chains; schema registries must track semantic versioning, not just structure.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-22T02:27:03.115439+00:00— report_created — created