Merge branch '2025-10-03-devin_logan-d8be69-c0cae6cb' of https://github.com/fern-api/docs into 2025-10-03-devin_logan-d8be69-c0cae6cb

Author: devalog

fern/products/sdks/capabilities.mdx

@@ -27,6 +27,18 @@ layout: overview
   <Card title="Schema Validation" icon="fa-duotone fa-check-circle" href="/sdks/deep-dives/testing#mock-server-tests">
     Fail fast if payloads diverge from your schema
 
+    <p className="text-(color:--grayscale-a11) font-bold mt-2 flex items-center gap-1">
+      Learn more
+
+      <img src="https://files.buildwithfern.com/fern.docs.buildwithfern.com/learn/2025-09-30T17:39:54.370Z/products/home/pages/images/arrow-right-black.svg" alt="Arrow right light" className="arrow-right dark:hidden m-0 h-4 w-4" noZoom={false} />
+
+      <img src="https://files.buildwithfern.com/fern.docs.buildwithfern.com/learn/2025-09-30T17:39:54.370Z/products/home/pages/images/arrow-right-white.svg" alt="Arrow right light" className="arrow-right hidden dark:block m-0 h-4 w-4" />
+    </p>
+  </Card>
+
+  <Card title="Discriminated Unions" icon="fa-duotone fa-code-branch" href="/api-definitions/ferndef/types#discriminated-unions">
+    Fern SDKs include support for discriminated unions
+
   <p className="text-(color:--grayscale-a11) font-bold mt-2 flex items-center gap-1">
     Learn more
 
@@ -37,13 +49,16 @@ layout: overview
 
   </Card>
 
-  <Card title="Discriminated Unions" icon="fa-duotone fa-code-branch">
-    Fern SDKs include support for discriminated unions
+  <Card title="Multipart Form Data" icon="fa-duotone fa-upload" href="https://github.com/cohere-ai/cohere-typescript/blob/8541d1e5df40c1d225e2dc7901a25fbb1019e817/src/api/resources/datasets/client/Client.ts#L202">
+    SDKs that handle multipart form data
 
-  </Card>
+  <p className="text-(color:--grayscale-a11) font-bold mt-2 flex items-center gap-1">
+    Learn more
 
-  <Card title="Multipart Form Data" icon="fa-duotone fa-upload">
-    SDKs that handle multipart form data
+    <img src="https://files.buildwithfern.com/fern.docs.buildwithfern.com/learn/2025-09-30T17:39:54.370Z/products/home/pages/images/arrow-right-black.svg" alt="Arrow right light" className="arrow-right dark:hidden m-0 h-4 w-4" noZoom />
+
+    <img src="https://files.buildwithfern.com/fern.docs.buildwithfern.com/learn/2025-09-30T17:39:54.370Z/products/home/pages/images/arrow-right-white.svg" alt="Arrow right light" className="arrow-right hidden dark:block m-0 h-4 w-4" noZoom />
+  </p>
 
   </Card>
 
@@ -122,9 +137,17 @@ layout: overview
 
   </Card>
 
-  <Card title="Server-Sent Events" icon="fa-duotone fa-broadcast-tower">
+  <Card title="Server-Sent Events" icon="fa-duotone fa-broadcast-tower" href="/api-definitions/openapi/endpoints/sse">
     Stream JSON data from your server to your client (i.e. chat completions)
 
+  <p className="text-(color:--grayscale-a11) font-bold mt-2 flex items-center gap-1">
+    Learn more
+
+    <img src="https://files.buildwithfern.com/fern.docs.buildwithfern.com/learn/2025-09-30T17:39:54.370Z/products/home/pages/images/arrow-right-black.svg" alt="Arrow right light" className="arrow-right dark:hidden m-0 h-4 w-4" noZoom={false} />
+
+    <img src="https://files.buildwithfern.com/fern.docs.buildwithfern.com/learn/2025-09-30T17:39:54.370Z/products/home/pages/images/arrow-right-white.svg" alt="Arrow right light" className="arrow-right hidden dark:block m-0 h-4 w-4" />
+  </p>
+
   </Card>
 
   <Card title="Testing" icon="fa-duotone fa-flask" href="/sdks/deep-dives/testing">
@@ -140,9 +163,17 @@ layout: overview
 
   </Card>
 
-  <Card title="Code Snippets" icon="fa-duotone fa-brackets-curly">
+  <Card title="Code Snippets" icon="fa-duotone fa-brackets-curly" href="/docs/api-references/sdk-snippets">
     No longer depend on manually written code snippets
 
+  <p className="text-(color:--grayscale-a11) font-bold mt-2 flex items-center gap-1">
+    Learn more
+
+    <img src="https://files.buildwithfern.com/fern.docs.buildwithfern.com/learn/2025-09-30T17:39:54.370Z/products/home/pages/images/arrow-right-black.svg" alt="Arrow right light" className="arrow-right dark:hidden m-0 h-4 w-4" noZoom />
+
+    <img src="https://files.buildwithfern.com/fern.docs.buildwithfern.com/learn/2025-09-30T17:39:54.370Z/products/home/pages/images/arrow-right-white.svg" alt="Arrow right light" className="arrow-right hidden dark:block m-0 h-4 w-4" noZoom />
+  </p>
+
   </Card>
 
   <Card title="Augment with Custom Code" icon="fa-duotone fa-puzzle-piece" href="/sdks/overview/custom-code">
@@ -158,34 +189,43 @@ layout: overview
 
   </Card>
 
-  <Card title="Merging Multiple APIs" icon="fa-duotone fa-code-merge" href="/sdks/overview/quickstart#configure-multiple-apis">
+  <Card title="Merging Multiple APIs" icon="fa-duotone fa-code-merge" href="/api-definitions/overview/project-structure#multiple-apis">
     Multiple API Definitions. One SDK.
 
   <p className="text-(color:--grayscale-a11) font-bold mt-2 flex items-center gap-1">
     Learn more
 
-    <img src="https://files.buildwithfern.com/fern.docs.buildwithfern.com/learn/2025-09-30T17:39:54.370Z/products/home/pages/images/arrow-right-black.svg" alt="Arrow right light" className="arrow-right dark:hidden m-0 h-4 w-4" noZoom />
+    <img src="https://files.buildwithfern.com/fern.docs.buildwithfern.com/learn/2025-09-30T17:39:54.370Z/products/home/pages/images/arrow-right-black.svg" alt="Arrow right light" className="arrow-right dark:hidden m-0 h-4 w-4" noZoom={false} />
 
-    <img src="https://files.buildwithfern.com/fern.docs.buildwithfern.com/learn/2025-09-30T17:39:54.370Z/products/home/pages/images/arrow-right-white.svg" alt="Arrow right light" className="arrow-right hidden dark:block m-0 h-4 w-4" noZoom />
+    <img src="https://files.buildwithfern.com/fern.docs.buildwithfern.com/learn/2025-09-30T17:39:54.370Z/products/home/pages/images/arrow-right-white.svg" alt="Arrow right light" className="arrow-right hidden dark:block m-0 h-4 w-4" noZoom={false} />
   </p>
 
   </Card>
 
-  <Card title="WebSockets" icon="fa-duotone fa-bolt">
+  <Card title="WebSockets" icon="fa-duotone fa-bolt" href="/api-definitions/ferndef/websockets">
     Send and receive messages over WebSockets
 
+  <p className="text-(color:--grayscale-a11) font-bold mt-2 flex items-center gap-1">
+    Learn more
+
+    <img src="https://files.buildwithfern.com/fern.docs.buildwithfern.com/learn/2025-09-30T17:39:54.370Z/products/home/pages/images/arrow-right-black.svg" alt="Arrow right light" className="arrow-right dark:hidden m-0 h-4 w-4" noZoom />
+
+    <img src="https://files.buildwithfern.com/fern.docs.buildwithfern.com/learn/2025-09-30T17:39:54.370Z/products/home/pages/images/arrow-right-white.svg" alt="Arrow right light" className="arrow-right hidden dark:block m-0 h-4 w-4" noZoom />
+  </p>
+
   </Card>
 
   <Card title="Model Context Protocol" icon="fa-duotone fa-layer-group" href="/sdks/generators/mcp-server">
-    Learn how to use the Model Context Protocol (MCP) to integrate AI capabilities with your Fern documentation
+    Fern can generate a Model Context Protocol (MCP) server that augments your SDK.
 
-    <p className="text-(color:--grayscale-a11) font-bold mt-2 flex items-center gap-1">
-      Learn more
+  <p className="text-(color:--grayscale-a11) font-bold mt-2 flex items-center gap-1">
+    Learn more
 
-      <img src="https://files.buildwithfern.com/fern.docs.buildwithfern.com/learn/2025-09-30T17:39:54.370Z/products/home/pages/images/arrow-right-black.svg" alt="Arrow right light" className="arrow-right dark:hidden m-0 h-4 w-4" noZoom />
+    <img src="https://files.buildwithfern.com/fern.docs.buildwithfern.com/learn/2025-09-30T17:39:54.370Z/products/home/pages/images/arrow-right-black.svg" alt="Arrow right light" className="arrow-right dark:hidden m-0 h-4 w-4" noZoom />
+
+    <img src="https://files.buildwithfern.com/fern.docs.buildwithfern.com/learn/2025-09-30T17:39:54.370Z/products/home/pages/images/arrow-right-white.svg" alt="Arrow right light" className="arrow-right hidden dark:block m-0 h-4 w-4" noZoom />
+  </p>
 
-      <img src="https://files.buildwithfern.com/fern.docs.buildwithfern.com/learn/2025-09-30T17:39:54.370Z/products/home/pages/images/arrow-right-white.svg" alt="Arrow right light" className="arrow-right hidden dark:block m-0 h-4 w-4" noZoom />
-    </p>
   </Card>
 </CardGroup>
 

fern/products/sdks/custom-code.mdx

@@ -27,11 +27,14 @@ LICENSE
 # Custom code
 src/CustomClient.ts
 ```
+
 <Note>For another example, see Cohere's [`.fernignore` file for their TypeScript SDK](https://github.com/cohere-ai/cohere-typescript/blob/ad583e3003bd51e80a82317f9e16beec85881b86/.fernignore).</Note> 
 
+<Note>For another example, see Cohere's [`.fernignore` file for their TypeScript SDK](https://github.com/cohere-ai/cohere-typescript/blob/ad583e3003bd51e80a82317f9e16beec85881b86/.fernignore).</Note>
+
 You'll have a separate `.fernignore` file for each of your SDKs:
 
-```text {9, 13}
+```
 ├─ company-repo # Top-level repo for all SDKs
     ├─ fern/
       ├─ apis/
@@ -47,12 +50,11 @@ You'll have a separate `.fernignore` file for each of your SDKs:
         └── .fernignore
 ```
 
+## Augmenting your SDK with custom code
 
-  ## Augmenting your SDK with custom code
-
-  Get started adding custom code to a specific SDK:
+Get started adding custom code to a specific SDK:
 
-    <CardGroup cols={3}>
+<CardGroup cols={3}>
     <Card title="TypeScript" icon={<img src="./images/icons/ts-light.svg" alt="TypeScript logo" className="h-6 w-6" noZoom />}  href="/sdks/generators/typescript/custom-code">
     </Card>
     <Card title="Python" icon={<img src="./images/icons/python-light.svg" className="h-6 w-6" noZoom />} href="/sdks/generators/python/custom-code">
@@ -70,4 +72,4 @@ You'll have a separate `.fernignore` file for each of your SDKs:
     <Card title="Ruby" icon={<img src="./images/icons/ruby-light.svg" className="h-6 w-6" noZoom />}>
     Coming soon
     </Card>
-  </CardGroup>
+  </CardGroup>