diff --git a/Tuning-Performance/Transaction_Pre_Validation/agent_template_backend/.env.example b/Tuning-Performance/Transaction_Pre_Validation/agent_template_backend/.env.example
new file mode 100644
index 0000000..e93ecca
--- /dev/null
+++ b/Tuning-Performance/Transaction_Pre_Validation/agent_template_backend/.env.example
@@ -0,0 +1,195 @@
+###############################################################################
+# AI AGENT PLATFORM - CONFIGURAÇÃO ÚNICA
+# Este arquivo é lido por Pydantic Settings no framework e no backend template.
+###############################################################################
+
+APP_NAME=ai-agent-template
+APP_ENV=local
+LOG_LEVEL=INFO
+API_HOST=0.0.0.0
+API_PORT=8000
+CORS_ORIGINS=http://localhost:5173,http://127.0.0.1:5173
+
+###############################################################################
+# LLM - OCI Generative AI como provider principal
+###############################################################################
+# Opções: mock, oci_openai, oci_sdk, openai_compatible
+LLM_PROVIDER=oci_openai
+LLM_TEMPERATURE=0.2
+LLM_MAX_TOKENS=2048
+LLM_TIMEOUT_SECONDS=120
+
+# OCI OpenAI-compatible endpoint
+OCI_GENAI_BASE_URL=https://inference.generativeai.us-chicago-1.oci.oraclecloud.com/openai/v1
+OCI_GENAI_MODEL=openai.gpt-4.1
+OCI_GENAI_API_KEY=sk-ph3FgX6ph3FgX6ph3FgX6ph3FgX6ph3FgX6ph3FgX6
+OCI_GENAI_PROJECT_OCID=
+
+# OCI SDK / signer / profiles
+OCI_CONFIG_FILE=~/.oci/config
+OCI_PROFILE=DEFAULT
+OCI_COMPARTMENT_ID=ocid1.compartment.oc1..aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
+OCI_REGION=us-chicago-1
+
+###############################################################################
+# Persistência
+###############################################################################
+# Opções: memory, autonomous, mongodb
+SESSION_REPOSITORY_PROVIDER=sqlite
+MEMORY_REPOSITORY_PROVIDER=sqlite
+CHECKPOINT_REPOSITORY_PROVIDER=sqlite
+SQLITE_DB_PATH=./data/agent_framework.db
+
+# Autonomous Database
+ADB_USER=admin
+ADB_PASSWORD=fjhsdf04954hf
+ADB_DSN=oradb23aidev_high
+ADB_WALLET_LOCATION=/ORACLE/DEFAULT/Wallet_ORADB23aiDev
+ADB_WALLET_PASSWORD=fjhsdf04954hf
+ADB_TABLE_PREFIX=AGENTFW
+
+# MongoDB - também pode representar Autonomous usando API compatível com Mongo, se habilitada no ambiente
+MONGODB_URI=mongodb://mongo:mongopassword@localhost:27017
+MONGODB_DATABASE=agent_platform
+
+# Redis
+REDIS_URL=redis://localhost:6379/0
+ENABLE_REDIS_CACHE=false
+
+###############################################################################
+# RAG / Vector / Graph
+###############################################################################
+VECTOR_STORE_PROVIDER=sqlite
+GRAPH_STORE_PROVIDER=sqlite
+RAG_TOP_K=5
+EMBEDDING_PROVIDER=mock
+OCI_EMBEDDING_MODEL=cohere.embed-multilingual-v3.0
+RAG_FILE_GLOBS=*.md,*.txt,*.yaml,*.yml,*.json
+
+###############################################################################
+# Observabilidade
+###############################################################################
+ENABLE_LANGFUSE=true
+LANGFUSE_TRACE_MODE=compact # Opcional: verbose, compact
+LANGFUSE_PUBLIC_KEY=pk-lf-2f9da109-5b0f-4c78-b61d-9598ed787eba
+LANGFUSE_SECRET_KEY=sk-lf-a4cb0cdd-f2ea-4468-9911-cebeb91ba944
+LANGFUSE_HOST=http://localhost:3005
+ENABLE_OTEL=false
+OTEL_EXPORTER_OTLP_ENDPOINT=
+OTEL_SERVICE_NAME=ai-agent-template
+ENABLE_LANGFUSE_OPENAI_AUTO_INSTRUMENTATION=true
+
+###############################################################################
+# Analytics / Observer corporativo
+###############################################################################
+# Quando true, AgentObserver publica eventos IC.*, NOC.* e GRL.* nos providers abaixo.
+ENABLE_ANALYTICS=false
+# Providers aceitos: oci_streaming,pubsub,noop
+ANALYTICS_PROVIDERS=pubsub
+# Compatibilidade FIRST/TIM: pode informar AGENT_PUBSUB_TOPIC diretamente.
+AGENT_PUBSUB_TOPIC=
+GCP_PUBSUB_TOPIC_PATH=
+GCP_PROJECT_ID=
+GCP_PUBSUB_TOPIC=
+GCP_PUBSUB_TIMEOUT_SECONDS=30
+# Credencial GCP segue padrão Google:
+# GOOGLE_APPLICATION_CREDENTIALS=/secrets/gcp-service-account.json
+
+###############################################################################
+# OCI Streaming
+###############################################################################
+ENABLE_OCI_STREAMING=false
+OCI_STREAM_ENDPOINT=
+OCI_STREAM_OCID=
+OCI_STREAM_PARTITION_KEY=agent-events
+
+###############################################################################
+# Guardrails, Judges, Supervisor
+###############################################################################
+ENABLE_INPUT_GUARDRAILS=true
+ENABLE_OUTPUT_GUARDRAILS=true
+ENABLE_JUDGES=true
+ENABLE_SUPERVISOR=true
+ENABLE_OUTPUT_SUPERVISOR=true
+ENABLE_PARALLEL_GUARDRAILS=true
+GUARDRAILS_FAIL_FAST=true
+OUTPUT_SUPERVISOR_MAX_RETRIES=3
+GUARDRAILS_CONFIG_PATH=./config/guardrails.yaml
+JUDGES_CONFIG_PATH=./config/judges.yaml
+PROMPT_POLICY_PATH=./config/prompt_policy.yaml
+
+###############################################################################
+# Gateway de canais
+###############################################################################
+DEFAULT_CHANNEL=web
+# embedded = backend may parse simple/native channel payloads.
+# external = backend only accepts GatewayRequest normalized by an external Channel Gateway.
+FRAMEWORK_CHANNEL_INPUT_MODE=embedded
+ENABLE_VOICE_ADAPTER=true
+ENABLE_WHATSAPP_ADAPTER=true
+ENABLE_TEXT_ADAPTER=true
+
+#################################################
+# ENTERPRISE ROUTING
+#################################################
+# Arquivo YAML com intents, keywords, políticas de estado e fallback.
+ROUTING_CONFIG_PATH=./config/routing.yaml
+# true = usa LLM para classificar quando keywords/estado não resolverem.
+# Em produção, costuma ser útil; em desenvolvimento, false evita custo e latência.
+ENABLE_LLM_ROUTER=true
+
+###############################################################################
+# MCP / Tools
+###############################################################################
+ENABLE_MCP_TOOLS=true
+MCP_SERVERS_CONFIG_PATH=./config/mcp_servers.yaml
+TOOLS_CONFIG_PATH=./config/tools.yaml
+TOOL_POLICIES_PATH=./config/tool_policies.yaml
+MCP_TOOL_TIMEOUT_SECONDS=30
+
+# router = EnterpriseRouter seleciona um agente; supervisor = pode acionar múltiplos agentes
+ROUTING_MODE=router
+
+# Usage/cost accounting
+USAGE_REPOSITORY_PROVIDER=sqlite
+IDENTITY_CONFIG_PATH=./config/identity.yaml
+MCP_PARAMETER_MAPPING_PATH=./config/mcp_parameter_mapping.yaml
+
+# -----------------------------------------------------------------------------
+# ConversationSummaryMemory / compressão de contexto conversacional
+# -----------------------------------------------------------------------------
+ENABLE_CONVERSATION_SUMMARY_MEMORY=true
+MEMORY_CONTEXT_STRATEGY=summary
+MEMORY_HISTORY_LIMIT=80
+MEMORY_RECENT_MESSAGES_LIMIT=8
+MEMORY_SUMMARY_TRIGGER_MESSAGES=20
+MEMORY_MAX_SUMMARY_CHARS=6000
+MEMORY_SUMMARY_USE_LLM=true
+MEMORY_INJECT_RECENT_MESSAGES=true
+MEMORY_INJECT_SUMMARY=true
+
+###############################################################################
+# MCP Gateway
+###############################################################################
+# true = framework routes tool calls to the dedicated MCP Gateway.
+# false = framework calls MCP servers directly from mcp_servers.yaml.
+MCP_GATEWAY_ENABLED=true
+MCP_GATEWAY_URL=http://localhost:8300
+MCP_GATEWAY_TIMEOUT_SECONDS=60
+# MCP_GATEWAY_TOKEN=
+MCP_GATEWAY_AGENT_ID=telecom_contas
+MCP_GATEWAY_TENANT_ID=default
+
+###############################################################################
+# LONG-TERM MEMORY
+###############################################################################
+ENABLE_LONG_TERM_MEMORY=true
+LONG_TERM_MEMORY_PROVIDER=sqlite
+LONG_TERM_MEMORY_SQLITE_PATH=./data/agent_framework.db
+LONG_TERM_MEMORY_TABLE=agentfw_long_term_memory
+# For Autonomous/Oracle, defaults to ${ADB_TABLE_PREFIX}_LONG_TERM_MEMORY
+# LONG_TERM_MEMORY_ORACLE_TABLE=AGENTFW_LONG_TERM_MEMORY
+LONG_TERM_MEMORY_MAX_CONTEXT_ITEMS=20
+LONG_TERM_MEMORY_MIN_CONFIDENCE=0.70
+LONG_TERM_MEMORY_AUTO_EXTRACT=true
+LONG_TERM_MEMORY_INJECT_CONTEXT=true
diff --git a/libs/agent_framework/src/agent_framework/guardrails/calibrated/prompts/_context.py b/libs/agent_framework/src/agent_framework/guardrails/calibrated/prompts/_context.py
index a0ad60c..cf51808 100644
--- a/libs/agent_framework/src/agent_framework/guardrails/calibrated/prompts/_context.py
+++ b/libs/agent_framework/src/agent_framework/guardrails/calibrated/prompts/_context.py
@@ -74,11 +74,21 @@ def _format_conversation_history(
             msgs.pop()
     lines: list[str] = []
     for msg in msgs:
-        cls = type(msg).__name__
-        if cls in _SKIPPED_CLASSES:
-            continue
-        role = _ROLE_BY_CLASS.get(cls, cls.lower())
-        content = _message_content_to_str(getattr(msg, "content", ""))
+        if isinstance(msg, dict):
+            role = str(msg.get("role") or msg.get("type") or "").lower()
+            if role in {"system", "tool", "function"}:
+                continue
+            if role == "human":
+                role = "user"
+            elif role in {"ai", "bot"}:
+                role = "assistant"
+            content = _message_content_to_str(msg.get("content", ""))
+        else:
+            cls = type(msg).__name__
+            if cls in _SKIPPED_CLASSES:
+                continue
+            role = _ROLE_BY_CLASS.get(cls, cls.lower())
+            content = _message_content_to_str(getattr(msg, "content", ""))
         if content.strip():
             lines.append(f"[{role}] {_truncate(content, per_message_limit)}")
     return "\n".join(lines)
diff --git a/libs/agent_framework/src/agent_framework/guardrails/calibrated/prompts/ausencia_oferta_proativa.py b/libs/agent_framework/src/agent_framework/guardrails/calibrated/prompts/ausencia_oferta_proativa.py
index 9d3794a..fea01a8 100644
--- a/libs/agent_framework/src/agent_framework/guardrails/calibrated/prompts/ausencia_oferta_proativa.py
+++ b/libs/agent_framework/src/agent_framework/guardrails/calibrated/prompts/ausencia_oferta_proativa.py
@@ -48,6 +48,10 @@ Decida na ordem, PARE no primeiro match:
    casa aqui, siga para o passo 5.
    Vale o pedido generico ("quero cancelar", "todos") sobre o que a conversa
    trata, e vale confirmar ou pedir permissao para executar essa acao.
+   IMPORTANTE: se o cliente acabou de PEDIR cancelamento/contestacao/ajuste do
+   mesmo alvo, a fala do agente que apenas pede CONFIRMACAO da transacao e
+   allowed=true. A confirmacao NAO precisa repetir a justificativa do cliente
+   ("nao reconheco", "esta caro" etc.); o pedido transacional anterior basta.
    Vale tambem trocar uma variante transacional por outra DA MESMA FAMILIA sobre
    o MESMO escopo, sempre limitada ao valor JA COBRADO no item (ressarcimento <->
    devolucao <-> reembolso <-> cancelamento <-> credito em fatura): negar o dobro e
diff --git a/tests/unit/test_langgraph_checkpoint_runtime_config.py b/tests/unit/test_langgraph_checkpoint_runtime_config.py
new file mode 100644
index 0000000..fd0f6f5
--- /dev/null
+++ b/tests/unit/test_langgraph_checkpoint_runtime_config.py
@@ -0,0 +1,64 @@
+from __future__ import annotations
+
+import asyncio
+from types import SimpleNamespace
+
+from agent_framework.checkpoints.langgraph_saver import (
+    RepositoryCheckpointSaver,
+    _durable_config,
+)
+
+
+class _Repo:
+    def __init__(self) -> None:
+        self.saved = None
+
+    async def put(self, thread_id, checkpoint):
+        self.saved = (thread_id, checkpoint)
+
+    async def get_latest(self, thread_id):
+        return self.saved[1] if self.saved and self.saved[0] == thread_id else None
+
+
+def test_private_pregel_runtime_is_not_durable() -> None:
+    config = {
+        "tags": ["x"],
+        "configurable": {
+            "thread_id": "t1",
+            "tenant": "default",
+            "__pregel_runtime": "stringified-runtime",
+            "__pregel_store": "stringified-store",
+        },
+    }
+
+    cleaned = _durable_config(config)
+
+    assert cleaned == {
+        "tags": ["x"],
+        "configurable": {"thread_id": "t1", "tenant": "default"},
+    }
+    assert "__pregel_runtime" in config["configurable"]
+
+
+def test_saver_strips_private_runtime_before_put_and_restore() -> None:
+    repo = _Repo()
+    saver = RepositoryCheckpointSaver(SimpleNamespace(), repository=repo)
+    config = {
+        "configurable": {
+            "thread_id": "t1",
+            "__pregel_runtime": "Runtime(...) persisted by JSON backend",
+        }
+    }
+    checkpoint = {"id": "cp1", "v": 1}
+
+    returned = asyncio.run(saver.aput(config, checkpoint, {}, {}))
+    assert returned["configurable"] == {"thread_id": "t1", "checkpoint_id": "cp1"}
+    assert repo.saved is not None
+    persisted = repo.saved[1]
+    assert "__pregel_runtime" not in persisted["config"]["configurable"]
+
+    # Also protects legacy records already stored with a stringified runtime.
+    persisted["config"]["configurable"]["__pregel_runtime"] = "legacy-string"
+    restored = saver._make_tuple(persisted)
+    restored_config = restored.config if hasattr(restored, "config") else restored["config"]
+    assert "__pregel_runtime" not in restored_config["configurable"]