feat(llm): route adapters by provider

python/sdk-runtime/src/deepseek_harness_runtime/runtime/cordis.yml

@@ -30,9 +30,6 @@
   config:
     apiKey: !!js process.env.DEEPSEEK_API_KEY
     baseURL: !!js process.env.DEEPSEEK_BASE_URL
-    models:
-      - deepseek-v4-flash
-      - deepseek-v4-pro
 
 # JSONL session persistence. $DSH_SESSION_ROOT (set by the SDK whenever
 # `session_root` is configured) wins; otherwise ./.sessions relative to the

python/sdk/README.i18n.yaml

@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write
-README.md: 60540376c5fd85b0852e204bc8bad3f01c849de5
-README.zh.md: 241c06057889f1aa4add6fc54024fba92bd19429
+README.md: b1189a789963a5e4180cc4ee402c885b0ec82dca
+README.zh.md: 721221418eb65f323f521a4fa16cbc355d283f0d

python/sdk/README.md

@@ -25,12 +25,15 @@ By default, the SDK launches the bundled single-file `dsh-jsonrpc-agent` executa
 from deepseek_harness import DeepSeekHarness
 
 with DeepSeekHarness(
+    provider="deepseek",
     model="deepseek-v4-flash",
     cordis="examples/dsbench-coding-agent/cordis.yml",
 ) as harness:
     result = harness.run("Make the requested code change.")
 ```
 
+`provider` selects a provider route registered by the chosen Cordis composition; `model` is the model id resolved by that adapter. The bundled default composition registers `deepseek`. A custom composition can mount `llm-pi-ai`, configure provider-specific credentials/endpoints there, and select any provider/model present in pi-ai's installed catalog.
+
 `TurnResult.final_response` is the text content from the last
 `assistant/message` event in the turn. Use `TurnResult.events` for the complete
 event stream, including intermediate assistant messages and tool activity.

python/sdk/README.zh.md

@@ -21,12 +21,15 @@ with DeepSeekHarness() as harness:
 from deepseek_harness import DeepSeekHarness
 
 with DeepSeekHarness(
+    provider="deepseek",
     model="deepseek-v4-flash",
     cordis="examples/dsbench-coding-agent/cordis.yml",
 ) as harness:
     result = harness.run("Make the requested code change.")
 ```
 
+`provider` 用于选择当前 Cordis 组合已注册的 provider 路由；`model` 是该适配器解析的模型 ID。内置默认组合注册 `deepseek`。自定义组合可以挂载 `llm-pi-ai`，在其中配置各 provider 的凭据与端点，再选择 pi-ai 已安装目录中的任意 provider/model。
+
 `TurnResult.final_response` 是本轮次最后一个 `assistant/message` 事件的文本内容。完整的事件流（包括中间的助手消息与工具活动）用 `TurnResult.events` 获取。
 
 同样的行为也可以通过 `DSH_CORDIS_CONFIG` 为运行时子进程选定。注入逻辑位于 `HarnessClient.start()`，因此底层客户端的默认启动也具有此行为：当启动解析到内置运行时，且 `cordis` 与非空的 `DSH_CORDIS_CONFIG` 均未设置时（运行时把空值视为缺省，注入检查与之一致），使用内置的默认配置；显式给出 `runtime_bin` 或 `launch_args_override` 则完全禁用注入。运行时载体（生产用 exe 与仅限开发的 `node` 闭包）及其获取方式见 [sdk-runtime README](../sdk-runtime/README.md)。

python/sdk/src/deepseek_harness/api.py

@@ -18,6 +18,7 @@ class DeepSeekHarnessConfig:
     intentionally override or inject variables for a subprocess.
     """
 
+    provider: str = "deepseek"
     model: str = "deepseek-v4-flash"
     cwd: str | None = None
     runtime_cwd: str | None = None
@@ -97,6 +98,7 @@ class DeepSeekHarness:
         self._client.start()
         self._client.initialize(
             cwd=self._cwd,
+            provider=self.config.provider,
             model=self.config.model,
         )
         self._initialized = True

python/sdk/src/deepseek_harness/client.py

@@ -115,10 +115,12 @@ class HarnessClient:
         self,
         *,
         cwd: str,
+        provider: str,
         model: str,
     ) -> InitializeResponse:
         payload: JsonObject = {
             "cwd": str(Path(cwd).resolve()),
+            "provider": provider,
             "model": model,
         }
         try:

python/sdk/tests/test_bundled_runtime.py

@@ -74,7 +74,7 @@ def test_bundled_runtime_boots_a_cordis_config(tmp_path: Path, mode: str) -> Non
     (tmp_path / "cordis.yml").write_text(_CORDIS_YML)
 
     with _client(tmp_path, launch_args) as client:
-        init = client.initialize(cwd=str(tmp_path), model="deepseek-v4-pro")
+        init = client.initialize(provider="deepseek", cwd=str(tmp_path), model="deepseek-v4-pro")
 
     assert init.serverInfo is not None
     assert init.serverInfo.name == "deepseek-harness-sdk-runtime"
@@ -91,7 +91,7 @@ def test_bundled_runtime_surfaces_unbundled_plugin_failure(tmp_path: Path, mode:
     client.start()
     try:
         with pytest.raises((TransportClosedError, TimeoutError)) as excinfo:
-            client.initialize(cwd=str(tmp_path), model="deepseek-v4-pro")
+            client.initialize(provider="deepseek", cwd=str(tmp_path), model="deepseek-v4-pro")
     finally:
         client.close()
 

python/sdk/tests/test_client.py

@@ -330,7 +330,7 @@ for line in sys.stdin:
     with HarnessClient(
         HarnessConfig(launch_args_override=(sys.executable, str(script)))
     ) as client:
-        init = client.initialize(cwd="/workspace", model="dsagent")
+        init = client.initialize(provider="deepseek", cwd="/workspace", model="dsagent")
         assert init.serverInfo.name == "fake-dsh"
 
         client.session_prompt("main", [{"type": "text", "text": "fix it"}])
@@ -382,7 +382,7 @@ for line in sys.stdin:
         raise RuntimeError("bad notification filter")
 
     with HarnessClient(HarnessConfig(launch_args_override=(sys.executable, str(script)))) as client:
-        client.initialize(cwd="/workspace", model="dsagent")
+        client.initialize(provider="deepseek", cwd="/workspace", model="dsagent")
         with (
             client.subscribe_notifications(broken_filter) as broken,
             client.subscribe_notifications(lambda notification: notification.method == "tick") as healthy,
@@ -419,7 +419,7 @@ for line in sys.stdin:
     )
 
     with HarnessClient(HarnessConfig(launch_args_override=(sys.executable, str(script)))) as client:
-        client.initialize(cwd="/workspace", model="dsagent")
+        client.initialize(provider="deepseek", cwd="/workspace", model="dsagent")
         with pytest.raises(ValueError):
             client.session_prompt("main", [{"type": "text", "text": "fix it"}])
 
@@ -448,7 +448,7 @@ for line in sys.stdin:
     with HarnessClient(
         HarnessConfig(launch_args_override=(sys.executable, str(script)))
     ) as client:
-        client.initialize(cwd="/workspace", model="dsagent")
+        client.initialize(provider="deepseek", cwd="/workspace", model="dsagent")
 
         request = client.next_request()
         assert request.id == "bridge-req-1"
@@ -482,7 +482,7 @@ for line in sys.stdin:
     with HarnessClient(
         HarnessConfig(launch_args_override=(sys.executable, str(script)))
     ) as client:
-        init = client.initialize(cwd="/workspace", model="dsagent")
+        init = client.initialize(provider="deepseek", cwd="/workspace", model="dsagent")
         assert init.serverInfo.name == "fake-dsh"
 
 
@@ -504,7 +504,7 @@ time.sleep(60)
     ) as client:
         start = time.monotonic()
         try:
-            client.initialize(cwd="/workspace", model="dsagent")
+            client.initialize(provider="deepseek", cwd="/workspace", model="dsagent")
         except TimeoutError:
             assert time.monotonic() - start < 2
         else:
@@ -540,7 +540,7 @@ for line in sys.stdin:
     client.start()
     proc = client._proc
     assert proc is not None
-    client.initialize(cwd="/workspace", model="dsagent")
+    client.initialize(provider="deepseek", cwd="/workspace", model="dsagent")
     start = time.monotonic()
     client.close()
     assert time.monotonic() - start < 2
@@ -571,7 +571,7 @@ for line in sys.stdin:
     assert proc is not None
 
     with pytest.raises(Exception, match="bad initialize"):
-        client.initialize(cwd=".", model="dsagent")
+        client.initialize(provider="deepseek", cwd=".", model="dsagent")
 
     assert proc.wait(timeout=1) is not None
     assert client._proc is None
@@ -611,7 +611,7 @@ for line in sys.stdin:
 
     client = HarnessClient(HarnessConfig(launch_args_override=(sys.executable, str(script))))
     client.start()
-    client.initialize(cwd="/workspace", model="dsagent")
+    client.initialize(provider="deepseek", cwd="/workspace", model="dsagent")
     client.close()
     client.close()
 
@@ -634,7 +634,7 @@ sys.exit(42)
         )
     ) as client:
         with pytest.raises(Exception, match="fatal bridge exploded"):
-            client.initialize(cwd="/workspace", model="dsagent")
+            client.initialize(provider="deepseek", cwd="/workspace", model="dsagent")
 
 
 def test_client_serializes_concurrent_writes(tmp_path: Path) -> None:
@@ -665,7 +665,7 @@ with open(os.environ["SEEN"], "w") as seen:
             env={"SEEN": str(output)},
         )
     ) as client:
-        client.initialize(cwd="/workspace", model="dsagent")
+        client.initialize(provider="deepseek", cwd="/workspace", model="dsagent")
         threads = [
             threading.Thread(target=client.notify, args=(f"notice-{index}", {"index": index}))
             for index in range(50)
@@ -738,7 +738,7 @@ def test_client_default_launch_uses_bundled_runtime_and_injects_default_config(
         monkeypatch.setenv("DSH_CORDIS_CONFIG", ambient_config)
 
     with HarnessClient(HarnessConfig(env={"ENV_DUMP": str(env_dump)})) as client:
-        init = client.initialize(cwd="/workspace", model="deepseek-v4-pro")
+        init = client.initialize(provider="deepseek", cwd="/workspace", model="deepseek-v4-pro")
 
     assert init.serverInfo.name == "bundled-runtime"
     assert json.loads(env_dump.read_text())["DSH_CORDIS_CONFIG"] == str(default_config)
@@ -754,7 +754,7 @@ def test_client_respects_explicit_config_over_bundled_default(
     with HarnessClient(
         HarnessConfig(env={"ENV_DUMP": str(env_dump), "DSH_CORDIS_CONFIG": "./explicit.yml"})
     ) as client:
-        client.initialize(cwd="/workspace", model="deepseek-v4-pro")
+        client.initialize(provider="deepseek", cwd="/workspace", model="deepseek-v4-pro")
 
     assert json.loads(env_dump.read_text())["DSH_CORDIS_CONFIG"] == "./explicit.yml"