diff --git a/.dagger/lock b/.dagger/lock
index 5d3ee5d..d0e75b6 100644
--- a/.dagger/lock
+++ b/.dagger/lock
@@ -1,3 +1,3 @@
 [["version","1"]]
 ["","container.from",["docker.io/library/golang:1.25-alpine","linux/arm64"],"sha256:8d22e29d960bc50cd025d93d5b7c7d220b1ee9aa7a239b3c8f55a57e987e8d45","pin"]
-["","git.head",["https://github.com/dagger/sdk-sdk"],"09da9576688ec4b495ae4a9443a4719da86ed25e","float"]
\ No newline at end of file
+["","git.head",["https://github.com/dagger/sdk-sdk"],"d1532df4f7d322a7bdab02487accde9d21bbb464","float"]
diff --git a/.dagger/modules/e2e/dagger.json b/.dagger/modules/e2e/dagger.json
index 8bbc10f..0466464 100644
--- a/.dagger/modules/e2e/dagger.json
+++ b/.dagger/modules/e2e/dagger.json
@@ -1,6 +1,6 @@
 {
   "name": "e2e",
-  "engineVersion": "v0.20.8",
+  "engineVersion": "v0.21.4",
   "sdk": {
     "source": "dang"
   },
diff --git a/.dagger/modules/e2e/main.dang b/.dagger/modules/e2e/main.dang
index f3befa1..255a236 100644
--- a/.dagger/modules/e2e/main.dang
+++ b/.dagger/modules/e2e/main.dang
@@ -156,6 +156,18 @@ type E2e {
     null
   }
 
+  """
+  initClient should not materialize files itself. The engine records the client
+  and owns the generated context changeset.
+  """
+  pub initClientCheck(ws: Workspace!): Void @check {
+    let changes = pythonSdk.initClient(ws, path: outputRoot + "/client", module: generateModulePath, dev: true)
+
+    assert(changes.isEmpty, "initClient should return an empty SDK changeset")
+
+    null
+  }
+
   """
   config.get should reflect pyproject.toml and report unset values as null
   rather than guessing, and config.set should edit only pyproject.toml.
diff --git a/dagger.json b/dagger.json
index ee88bef..0cae831 100644
--- a/dagger.json
+++ b/dagger.json
@@ -8,7 +8,7 @@
     {
       "name": "polyfill",
       "source": "https://github.com/dagger/sdk-sdk/polyfill@main",
-      "pin": "09da9576688ec4b495ae4a9443a4719da86ed25e"
+      "pin": "d1532df4f7d322a7bdab02487accde9d21bbb464"
     }
   ]
 }
diff --git a/dagger.toml b/dagger.toml
new file mode 100644
index 0000000..eac285e
--- /dev/null
+++ b/dagger.toml
@@ -0,0 +1,10 @@
+# Dagger workspace configuration
+# Install modules with: dagger install <module>
+# Example:
+#   dagger install github.com/dagger/dagger/modules/wolfi
+
+# Marker filename that skips generate when found at or above a Python SDK module root.
+# settings.skipGenerateFilename = ""
+
+[modules.e2e]
+source = ".dagger/modules/e2e"
diff --git a/python-sdk.dang b/python-sdk.dang
index 6bf7e19..2c53cc2 100644
--- a/python-sdk.dang
+++ b/python-sdk.dang
@@ -145,6 +145,16 @@ type PythonSdk {
     }
   }
 
+  """
+  Generate a typed Python client for `module` at `path`.
+
+  The engine records the managed client in workspace config before calling
+  this function. The engine owns materializing the generated client files.
+  """
+  pub initClient(ws: Workspace!, path: String!, module: String!, dev: Boolean! = false): Changeset! {
+    polyfill.workspace(ws).fork.changes
+  }
+
   """
   Render a Python template with the requested module name.
   """