feat: add OpenRouter System One client support

api/tinyhumans.backend.json

@@ -8,9 +8,9 @@
     "url": "https://api.tinyhumans.ai/swagger.json",
     "title": "TinyHumans API",
     "version": "1.0.0",
-    "pathCount": 231,
-    "totalOperationCount": 256,
-    "operationCount": 204,
+    "pathCount": 233,
+    "totalOperationCount": 258,
+    "operationCount": 206,
     "supplementalOperationCount": 13,
     "excludedAdminOperationCount": 44,
     "excludedWebhookOperationCount": 12,
@@ -34,7 +34,7 @@
       "name": "agentIntegrations",
       "basePath": "/agent-integrations",
       "auth": "mixed",
-      "operationCount": 73,
+      "operationCount": 75,
       "tags": [
         "Agent Integrations",
         "OpenHuman parity"
@@ -99,6 +99,8 @@
         "POST /agent-integrations/openrouter/embeddings",
         "POST /agent-integrations/openrouter/images",
         "POST /agent-integrations/openrouter/messages",
+        "POST /agent-integrations/openrouter/systemone",
+        "POST /agent-integrations/openrouter/v1/systemone",
         "POST /agent-integrations/openrouter/videos",
         "POST /agent-integrations/parallel/chat",
         "POST /agent-integrations/parallel/dataset",

src/api/agent_integrations/openrouter.rs

@@ -9,10 +9,11 @@
 //! [`DynamicResponse`], matching how [`crate::api::inference`] treats the
 //! OpenAI-compatible surface.
 //!
-//! Four request shapes share the one provider:
+//! Five request shapes share the one provider:
 //!
 //! - OpenAI chat and text completions.
 //! - Anthropic-format messages, which the Anthropic SDK can call directly.
+//! - TypeSafe System One requests for Jev typed decisions.
 //! - Embeddings, which resolve against a **separate** upstream catalog — an
 //!   embedding slug is not valid on the chat routes, or vice versa.
 //! - Image and video generation, billed per generation rather than per token
@@ -182,6 +183,19 @@ impl AgentIntegrationsApi<'_> {
             .await
     }
 
+    /// Evaluate typed questions with a Jev System One model.
+    ///
+    /// The request and response use TypeSafe's wire shape. For a fully typed
+    /// client, point `tinyjevclient` at the companion `/v1/systemone` alias by
+    /// using `/agent-integrations/openrouter` as its base URL.
+    pub async fn openrouter_system_one(
+        &self,
+        request: &impl Serialize,
+    ) -> Result<DynamicResponse, Error> {
+        self.passthrough("/agent-integrations/openrouter/systemone", request)
+            .await
+    }
+
     /// List embedding models. A separate catalog from the chat models.
     pub async fn list_openrouter_embedding_models(
         &self,

src/generated_public_routes.rs

@@ -51,6 +51,8 @@ pub const PUBLIC_ROUTES: &[(&str, &str)] = &[
     ("GET", "/agent-integrations/openrouter/images/models"),
     ("POST", "/agent-integrations/openrouter/messages"),
     ("GET", "/agent-integrations/openrouter/models"),
+    ("POST", "/agent-integrations/openrouter/systemone"),
+    ("POST", "/agent-integrations/openrouter/v1/systemone"),
     ("POST", "/agent-integrations/openrouter/videos"),
     ("GET", "/agent-integrations/openrouter/videos/{jobId}"),
     ("GET", "/agent-integrations/openrouter/videos/{jobId}/content"),

tests/openapi_sync.rs

@@ -158,7 +158,8 @@ fn generated_rust_routes_match_the_public_manifest() {
     // last a year).
     // 203 -> 204: `POST /opencompany/instances/{slug}/update`, the
     // owner-triggered "update to latest" for a hosted company.
-    assert_eq!(manifest["source"]["operationCount"], 204);
+    // 204 -> 206: OpenRouter System One plus its TypeSafe-compatible alias.
+    assert_eq!(manifest["source"]["operationCount"], 206);
     // 14 -> 13: `GET /orchestration/v1/steering` left with that family.
     assert_eq!(manifest["source"]["supplementalOperationCount"], 13);
     // 37 -> 39: the two service-token operations on
@@ -181,7 +182,7 @@ fn generated_rust_routes_match_the_public_manifest() {
     // post's cover and body figures. Same token as the other blog writes.
     assert_eq!(manifest["source"]["excludedAdminOperationCount"], 44);
     assert_eq!(manifest["source"]["excludedWebhookOperationCount"], 12);
-    assert_eq!(rust_routes.len(), 204);
+    assert_eq!(rust_routes.len(), 206);
     assert_eq!(rust_routes, manifest_routes);
     assert!(rust_routes
         .iter()

tests/openrouter.rs

@@ -217,6 +217,45 @@ async fn messages_speaks_the_anthropic_shape() {
     assert_eq!(response["usage"]["input_tokens"], 12);
 }
 
+#[tokio::test]
+async fn system_one_preserves_the_typesafe_wire_shape() {
+    let server = MockServer::start().await;
+    Mock::given(method("POST"))
+        .and(path("/agent-integrations/openrouter/systemone"))
+        .and(body_json(json!({
+            "model": "jev-latest",
+            "state": {"ticket": "I was charged twice"},
+            "questions": {
+                "refund": {"type": "noul", "instructions": "Is a refund requested?"}
+            }
+        })))
+        .respond_with(ResponseTemplate::new(200).set_body_json(json!({
+            "id": "gen-dec-1",
+            "model": "typesafe/jev-1.13-20260917",
+            "provider": "TypeSafe",
+            "answers": {"refund": {"type": "noul", "noul": 0.98}},
+            "usage": {"input_tokens": 275, "output_tokens": 20, "cost": 0.00003}
+        })))
+        .mount(&server)
+        .await;
+
+    let response = TinyHumansClient::new(server.uri())
+        .agent_integrations()
+        .openrouter_system_one(&json!({
+            "model": "jev-latest",
+            "state": {"ticket": "I was charged twice"},
+            "questions": {
+                "refund": {"type": "noul", "instructions": "Is a refund requested?"}
+            }
+        }))
+        .await
+        .unwrap();
+
+    assert_eq!(response["answers"]["refund"]["type"], "noul");
+    assert_eq!(response["answers"]["refund"]["noul"], 0.98);
+    assert_eq!(response["usage"]["cost"], 0.00003);
+}
+
 #[tokio::test]
 async fn embedding_models_come_from_their_own_catalog() {
     let server = MockServer::start().await;