Improved generator.py

tests/test_candidate_graph.py

@@ -403,3 +403,58 @@ def test_candidate_generator_does_not_promote_llm_provider_mentions_to_capabilit
         for capability in graph[0].capabilities
         if capability.name == "Route LLM Requests Across Providers"
     ] == []
+
+
+def test_candidate_generator_excludes_mention_only_providers_from_promoted_capability():
+    repository = Repository(
+        id=1,
+        name="MixedSignals",
+        url="/tmp/mixed-signals",
+        description=None,
+        branch="main",
+        status="analyzed",
+    )
+    facts = [
+        fact(1, "documentation", "README", "README.md"),
+        fact(
+            2,
+            "llm_provider",
+            "OpenRouter",
+            "src/providers.py",
+            "openrouter",
+            {"source_role": "implementation_source", "utility_relationship": "adapter"},
+        ),
+        fact(
+            3,
+            "llm_provider",
+            "Claude",
+            "README.md",
+            "claude",
+            {"source_role": "product_documentation", "utility_relationship": "mention"},
+        ),
+        fact(
+            4,
+            "provider_registry",
+            "LLM provider registry",
+            "src/providers.py",
+            metadata={"source_role": "implementation_source", "utility_relationship": "adapter"},
+        ),
+    ]
+
+    graph = CandidateGraphGenerator().generate(repository, facts)
+
+    capability = next(
+        capability
+        for capability in graph[0].capabilities
+        if capability.name == "Route LLM Requests Across Providers"
+    )
+    assert "OpenRouter" in capability.description
+    assert "Claude" not in capability.description
+    assert {feature.name for feature in capability.features} == {
+        "Use OpenRouter Models",
+        "Maintain LLM Provider Registry",
+    }
+    assert [ref.path for ref in capability.source_refs] == [
+        "src/providers.py",
+        "src/providers.py",
+    ]