diff --git a/extensions/arcee/provider-policy-api.test.ts b/extensions/arcee/provider-policy-api.test.ts
new file mode 100644
index 00000000000..0d4afe464d2
--- /dev/null
+++ b/extensions/arcee/provider-policy-api.test.ts
@@ -0,0 +1,73 @@
+import { describe, expect, it } from "vitest";
+import { normalizeConfig } from "./provider-policy-api.js";
+
+describe("arcee provider policy public artifact", () => {
+  it("normalizes stale OpenRouter base URLs and Trinity compat without loading the full plugin", () => {
+    expect(
+      normalizeConfig({
+        provider: "arcee",
+        providerConfig: {
+          api: "openai-completions",
+          baseUrl: "https://openrouter.ai/v1/",
+          models: [
+            {
+              id: "arcee/trinity-large-thinking",
+              name: "Trinity Large Thinking",
+              reasoning: true,
+              input: ["text"],
+              contextWindow: 262144,
+              maxTokens: 80000,
+              cost: {
+                input: 0.25,
+                output: 0.9,
+                cacheRead: 0.25,
+                cacheWrite: 0.25,
+              },
+              compat: {
+                supportsReasoningEffort: false,
+                supportsStrictMode: true,
+              },
+            },
+          ],
+        },
+      }),
+    ).toMatchObject({
+      baseUrl: "https://openrouter.ai/api/v1",
+      models: [
+        {
+          id: "arcee/trinity-large-thinking",
+          compat: {
+            supportsReasoningEffort: false,
+            supportsStrictMode: true,
+            supportsTools: false,
+          },
+        },
+      ],
+    });
+  });
+
+  it("returns unchanged non-Trinity configs by identity", () => {
+    const providerConfig = {
+      api: "openai-completions",
+      baseUrl: "https://api.arcee.ai/api/v1",
+      models: [
+        {
+          id: "trinity-mini",
+          name: "Trinity Mini 26B",
+          reasoning: false,
+          input: ["text"],
+          contextWindow: 131072,
+          maxTokens: 80000,
+          cost: {
+            input: 0.045,
+            output: 0.15,
+            cacheRead: 0.045,
+            cacheWrite: 0.045,
+          },
+        },
+      ],
+    } satisfies Parameters<typeof normalizeConfig>[0]["providerConfig"];
+
+    expect(normalizeConfig({ provider: "arcee", providerConfig })).toBe(providerConfig);
+  });
+});
diff --git a/extensions/arcee/provider-policy-api.ts b/extensions/arcee/provider-policy-api.ts
index 54ce4951661..61fffb9057f 100644
--- a/extensions/arcee/provider-policy-api.ts
+++ b/extensions/arcee/provider-policy-api.ts
@@ -3,6 +3,9 @@ import { normalizeArceeProviderConfig } from "./provider-policy.js";
 
 export { normalizeArceeProviderConfig };
 
-export function normalizeConfig(params: { providerConfig: ModelProviderConfig }) {
+export function normalizeConfig(params: {
+  provider?: string;
+  providerConfig: ModelProviderConfig;
+}): ModelProviderConfig {
   return normalizeArceeProviderConfig(params.providerConfig);
 }