Support inherited PromptKit profiles

internal/framework/llm/promptkit_client_test.go

@@ -456,6 +456,32 @@ func TestPromptKitClientCheckpointFingerprintTracksProfileSource(t *testing.T) {
 			t.Fatalf("profile-source fingerprint exposes source path: %#v, %#v", first, second)
 		}
 	})
+
+	t.Run("inherited parent", func(t *testing.T) {
+		profileDir := t.TempDir()
+		parentPath := filepath.Join(profileDir, "parent.yaml")
+		leafPath := filepath.Join(profileDir, "leaf.yaml")
+		if err := os.WriteFile(parentPath, []byte("id: parent\nendpoint: http://promptkit.test/v1\nmodel: parent-one\n"), 0o600); err != nil {
+			t.Fatal(err)
+		}
+		if err := os.WriteFile(leafPath, []byte("id: leaf\nbase_profile: parent\nmodel: leaf-model\n"), 0o600); err != nil {
+			t.Fatal(err)
+		}
+		first, err := promptKitProfileFingerprint(profileDir, "", "")
+		if err != nil {
+			t.Fatal(err)
+		}
+		if err := os.WriteFile(parentPath, []byte("id: parent\nendpoint: http://promptkit.test/v1\nmodel: parent-two\n"), 0o600); err != nil {
+			t.Fatal(err)
+		}
+		second, err := promptKitProfileFingerprint(profileDir, "", "")
+		if err != nil {
+			t.Fatal(err)
+		}
+		if first == second || strings.Contains(first.Value, "parent-one") || strings.Contains(first.Value, parentPath) || strings.Contains(first.Value, leafPath) {
+			t.Fatalf("inherited profile fingerprint = %#v then %#v", first, second)
+		}
+	})
 }
 
 func TestPromptKitProfileFingerprintReadErrorsDoNotExposeSourcePaths(t *testing.T) {
@@ -531,6 +557,78 @@ func TestPromptKitClientUsesFallbackProfilesForExecutionAndInspection(t *testing
 	}
 }
 
+func TestPromptKitClientUsesInheritedFilesystemProfileForInspectionAndExecution(t *testing.T) {
+	profileDir := t.TempDir()
+	if err := os.WriteFile(filepath.Join(profileDir, "base.yaml"), []byte("id: base\nendpoint: http://promptkit.test/v1\nmodel: base-model\nreasoning_effort: medium\n"), 0o600); err != nil {
+		t.Fatal(err)
+	}
+	if err := os.WriteFile(filepath.Join(profileDir, "leaf.yaml"), []byte("id: inherited-profile\nbase_profile: base\nmodel: leaf-model\n"), 0o600); err != nil {
+		t.Fatal(err)
+	}
+	fake := &fakePromptKitLLM{content: `{"ok":true}`}
+	client, err := NewPromptKitClient(PromptKitClientConfig{Assets: newTestPromptKitAssets(t), ProfileDir: profileDir, EngineOptions: []promptkit.Option{promptkit.WithLLMClient(fake)}})
+	if err != nil {
+		t.Fatal(err)
+	}
+	inspector, err := NewPromptKitProfileInspector(PromptKitProfileInspectorConfig{Source: PromptKitProfileSourceConfig{ProfileDir: profileDir}})
+	if err != nil {
+		t.Fatal(err)
+	}
+	inspection, err := inspector.InspectProfile(context.Background(), "inherited-profile")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if inspection.ProfileID != "inherited-profile" || inspection.Model != "leaf-model" {
+		t.Fatalf("inspection = %#v, want resolved leaf target", inspection)
+	}
+	var out map[string]any
+	response, err := client.CompleteStructured(context.Background(), contracts.StructuredCompletionRequest{PromptID: "adapter.test", ProfileID: "inherited-profile", SessionID: "inheritance-test", Inputs: contracts.LLMInputSet{"transcript": contracts.NewLLMInputMaterial("transcript", "application/json", []byte(`{"source":true}`), "", "")}}, &out)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if response.ProfileID != inspection.ProfileID || response.Model != inspection.Model || fake.lastRequest().Target.ReasoningEffort != "medium" {
+		t.Fatalf("response=%#v target=%#v inspection=%#v", response, fake.lastRequest().Target, inspection)
+	}
+}
+
+func TestPromptKitProfileInspectorExposesRakestrawhomeBuiltIn(t *testing.T) {
+	inspector, err := NewPromptKitProfileInspector(PromptKitProfileInspectorConfig{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	inspection, err := inspector.InspectProfile(context.Background(), "rakestrawhome-gemma-4-31b")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if inspection.BackendID != promptkit.BackendRakestrawHome || inspection.Model != "google/gemma-4-31b-it" {
+		t.Fatalf("inspection = %#v", inspection)
+	}
+}
+
+func TestPromptKitClientAllowsMissingOptionalFilesystemCredential(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if got := r.Header.Get("Authorization"); got != "" {
+			t.Fatalf("Authorization = %q, want omitted", got)
+		}
+		w.Header().Set("Content-Type", "application/json")
+		_, _ = w.Write([]byte(`{"choices":[{"message":{"content":"{\"ok\":true}"}}]}`))
+	}))
+	defer server.Close()
+	t.Setenv("NOTARIUS_OPTIONAL_PROFILE_KEY", "")
+	profilePath := filepath.Join(t.TempDir(), "optional.yaml")
+	if err := os.WriteFile(profilePath, []byte("id: optional-profile\nendpoint: "+server.URL+"/v1\nmodel: optional-model\napi_key_env: NOTARIUS_OPTIONAL_PROFILE_KEY\n"), 0o600); err != nil {
+		t.Fatal(err)
+	}
+	client, err := NewPromptKitClient(PromptKitClientConfig{Assets: newTestPromptKitAssets(t), ProfileFile: profilePath})
+	if err != nil {
+		t.Fatal(err)
+	}
+	var out map[string]any
+	if _, err := client.CompleteStructured(context.Background(), contracts.StructuredCompletionRequest{PromptID: "adapter.test", ProfileID: "optional-profile", SessionID: "optional-credential-test", Inputs: contracts.LLMInputSet{"transcript": contracts.NewLLMInputMaterial("transcript", "application/json", []byte(`{"source":true}`), "", "")}}, &out); err != nil {
+		t.Fatal(err)
+	}
+}
+
 func TestPromptKitClientCheckpointFingerprintTracksFallbackProfileAssets(t *testing.T) {
 	fingerprintFor := func(content string) CheckpointFingerprint {
 		t.Helper()