vh
7156b25957
Worldtree accepted the v1 wire validation green; contract rev 1.1 folds all three consumer flags. Flag #1 surfaced a real provider constraint: first-message makes the assistant seq 0 -> vLLM/openai_compat tolerate it (sindra unaffected), but Anthropic-family providers 400 on an assistant-first array. Consumer must gate first-message on provider compat; provider-agnostic normalization deferred.