diff --git a/nemo_guardrails_tracing_project/.DS_Store b/nemo_guardrails_tracing_project/.DS_Store
new file mode 100644
index 0000000..88aa30c
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diff --git a/nemo_guardrails_tracing_project/env.variables b/nemo_guardrails_tracing_project/env.variables
index ba30f80..bd91a8e 100644
--- a/nemo_guardrails_tracing_project/env.variables
+++ b/nemo_guardrails_tracing_project/env.variables
@@ -7,7 +7,7 @@ OPENAI_MODEL=gpt-4.1
 # Tracing / Phoenix / OpenTelemetry
 OTEL_EXPORTER_OTLP_ENDPOINT=http://localhost:6006/v1/traces
 OTEL_SERVICE_NAME=nemo-guardrails-demo
-ENABLE_TRACING=false
+ENABLE_TRACING=true
 
 # Modo demo: usa cliente fake se o proxy não estiver disponível
 USE_MOCK_LLM=false
diff --git a/nemo_guardrails_tracing_project/src/__pycache__/__init__.cpython-312.pyc b/nemo_guardrails_tracing_project/src/__pycache__/__init__.cpython-312.pyc
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index 0000000..050f405
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diff --git a/nemo_guardrails_tracing_project/src/__pycache__/app_nemo.cpython-312.pyc b/nemo_guardrails_tracing_project/src/__pycache__/app_nemo.cpython-312.pyc
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index 0000000..98f5791
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