diff --git a/tests/integration/conftest.py b/tests/integration/conftest.py
new file mode 100644
index 0000000..244873e
--- /dev/null
+++ b/tests/integration/conftest.py
@@ -0,0 +1,31 @@
+"""Fixtures compartidas para tests de integración."""
+
+from pathlib import Path
+
+import pytest
+
+from agentforge_core.api import deps
+
+
+@pytest.fixture
+def integration_client(tmp_path: Path, monkeypatch: pytest.MonkeyPatch):  # type: ignore[no-untyped-def]
+    """Cliente FastAPI con env apuntando a los assets reales del repo."""
+    from fastapi.testclient import TestClient
+
+    from agentforge_core.main import create_app
+
+    repo_root = Path(__file__).parent.parent.parent
+    monkeypatch.setenv("DATA_DIR", str(tmp_path))
+    monkeypatch.setenv("AGENTS_DIR", str(repo_root / "agents"))
+    monkeypatch.setenv("POLICIES_DIR", str(repo_root / "policies"))
+    monkeypatch.setenv("LLM_PROVIDER", "mock")
+    for fn in (
+        deps.get_settings,
+        deps.get_registry,
+        deps.get_policy_store,
+        deps.get_orchestrator,
+        deps.get_llm_provider,
+        deps.get_guardrail_engine,
+    ):
+        fn.cache_clear()
+    return TestClient(create_app())
diff --git a/tests/integration/test_invoke_happy_path.py b/tests/integration/test_invoke_happy_path.py
new file mode 100644
index 0000000..7f5f8ca
--- /dev/null
+++ b/tests/integration/test_invoke_happy_path.py
@@ -0,0 +1,29 @@
+"""Integration: invoca incident_analyzer real con escenario MOS (sin HITL)."""
+
+from pathlib import Path
+
+import pytest
+
+EXAMPLES = (
+    Path(__file__).parent.parent.parent / "agents" / "incident_analyzer" / "examples"
+)
+
+
+@pytest.mark.integration
+def test_happy_path_completa_sin_hitl(integration_client) -> None:  # type: ignore[no-untyped-def]
+    payload = (EXAMPLES / "02_mos_degradation_pool_sbc.txt").read_text(encoding="utf-8")
+    r = integration_client.post("/agents/incident_analyzer/invoke", json={"input": payload})
+    assert r.status_code == 200
+    body = r.json()
+    assert body["status"] == "completed"
+    assert body["agent_name"] == "incident_analyzer"
+    assert body["agent_version"] in {"v1", "v2"}
+    assert body["final_output"]["severity"] in {"low", "medium", "high", "critical"}
+    # Decision_path debe contener todos los nodos.
+    steps = {s["step"] for s in body["decision_path"]}
+    assert "validate_input" in steps
+    assert "llm_reason" in steps
+    assert "validate_output" in steps
+    assert "propose_actions" in steps
+    assert "approve_gate" in steps
+    assert "finalize" in steps