feat(api): get session and session children routes

8 files changed, 134 insertions, 4 deletions

diff --git a/packages/opencode/src/server/server.ts b/packages/opencode/src/server/server.ts
index 1a3d42b59..0b1f91679 100644
--- a/packages/opencode/src/server/server.ts
+++ b/packages/opencode/src/server/server.ts
@@ -248,6 +248,34 @@ export namespace Server {
           return c.json(session)
         },
       )
+      .get(
+        "/session/:id/children",
+        describeRoute({
+          description: "Get a session's children",
+          operationId: "session.children",
+          responses: {
+            200: {
+              description: "List of children",
+              content: {
+                "application/json": {
+                  schema: resolver(Session.Info.array()),
+                },
+              },
+            },
+          },
+        }),
+        zValidator(
+          "param",
+          z.object({
+            id: z.string(),
+          }),
+        ),
+        async (c) => {
+          const sessionID = c.req.valid("param").id
+          const session = await Session.children(sessionID)
+          return c.json(session)
+        },
+      )
       .post(
         "/session",
         describeRoute({
diff --git a/packages/sdk/go/.stats.yml b/packages/sdk/go/.stats.yml
index 6a6c7c1fe..156ca97e6 100644
--- a/packages/sdk/go/.stats.yml
+++ b/packages/sdk/go/.stats.yml
@@ -1,4 +1,4 @@
-configured_endpoints: 37
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/opencode%2Fopencode-e438f89b86b573c957866c9b057efacc912e3946be03390e4027e8dfab5b83ba.yml
-openapi_spec_hash: 4e9d257b86172e266dc9d72fb04548bc
-config_hash: a78225c7474eb9ab8745e72a0cfe6f96
+configured_endpoints: 39
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/opencode%2Fopencode-b751e5c3cd3ab7fc61b18fbbfd6092b7264ea2ee305858aa538b884e7c492090.yml
+openapi_spec_hash: a61f8b1d9b834cf321f0cb7805cc8522
+config_hash: eab3723c4c2232a6ba1821151259d6da
diff --git a/packages/sdk/go/api.md b/packages/sdk/go/api.md
index f48d06870..7be0d3a44 100644
--- a/packages/sdk/go/api.md
+++ b/packages/sdk/go/api.md
@@ -116,6 +116,8 @@ Methods:
 - <code title="delete /session/{id}">client.Session.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#SessionService.Delete">Delete</a>(ctx <a href="https://pkg.go.dev/context">context</a>.<a href="https://pkg.go.dev/context#Context">Context</a>, id <a href="https://pkg.go.dev/builtin#string">string</a>) (<a href="https://pkg.go.dev/builtin#bool">bool</a>, <a href="https://pkg.go.dev/builtin#error">error</a>)</code>
 - <code title="post /session/{id}/abort">client.Session.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#SessionService.Abort">Abort</a>(ctx <a href="https://pkg.go.dev/context">context</a>.<a href="https://pkg.go.dev/context#Context">Context</a>, id <a href="https://pkg.go.dev/builtin#string">string</a>) (<a href="https://pkg.go.dev/builtin#bool">bool</a>, <a href="https://pkg.go.dev/builtin#error">error</a>)</code>
 - <code title="post /session/{id}/message">client.Session.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#SessionService.Chat">Chat</a>(ctx <a href="https://pkg.go.dev/context">context</a>.<a href="https://pkg.go.dev/context#Context">Context</a>, id <a href="https://pkg.go.dev/builtin#string">string</a>, body <a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go">opencode</a>.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#SessionChatParams">SessionChatParams</a>) (<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go">opencode</a>.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#AssistantMessage">AssistantMessage</a>, <a href="https://pkg.go.dev/builtin#error">error</a>)</code>
+- <code title="get /session/{id}/children">client.Session.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#SessionService.Children">Children</a>(ctx <a href="https://pkg.go.dev/context">context</a>.<a href="https://pkg.go.dev/context#Context">Context</a>, id <a href="https://pkg.go.dev/builtin#string">string</a>) ([]<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go">opencode</a>.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#Session">Session</a>, <a href="https://pkg.go.dev/builtin#error">error</a>)</code>
+- <code title="get /session/{id}">client.Session.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#SessionService.Get">Get</a>(ctx <a href="https://pkg.go.dev/context">context</a>.<a href="https://pkg.go.dev/context#Context">Context</a>, id <a href="https://pkg.go.dev/builtin#string">string</a>) (<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go">opencode</a>.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#Session">Session</a>, <a href="https://pkg.go.dev/builtin#error">error</a>)</code>
 - <code title="post /session/{id}/init">client.Session.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#SessionService.Init">Init</a>(ctx <a href="https://pkg.go.dev/context">context</a>.<a href="https://pkg.go.dev/context#Context">Context</a>, id <a href="https://pkg.go.dev/builtin#string">string</a>, body <a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go">opencode</a>.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#SessionInitParams">SessionInitParams</a>) (<a href="https://pkg.go.dev/builtin#bool">bool</a>, <a href="https://pkg.go.dev/builtin#error">error</a>)</code>
 - <code title="get /session/{id}/message/{messageID}">client.Session.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#SessionService.Message">Message</a>(ctx <a href="https://pkg.go.dev/context">context</a>.<a href="https://pkg.go.dev/context#Context">Context</a>, id <a href="https://pkg.go.dev/builtin#string">string</a>, messageID <a href="https://pkg.go.dev/builtin#string">string</a>) (<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go">opencode</a>.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#SessionMessageResponse">SessionMessageResponse</a>, <a href="https://pkg.go.dev/builtin#error">error</a>)</code>
 - <code title="get /session/{id}/message">client.Session.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#SessionService.Messages">Messages</a>(ctx <a href="https://pkg.go.dev/context">context</a>.<a href="https://pkg.go.dev/context#Context">Context</a>, id <a href="https://pkg.go.dev/builtin#string">string</a>) ([]<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go">opencode</a>.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#SessionMessagesResponse">SessionMessagesResponse</a>, <a href="https://pkg.go.dev/builtin#error">error</a>)</code>
diff --git a/packages/sdk/go/session.go b/packages/sdk/go/session.go
index 29cc92a21..0ab9c7d9f 100644
--- a/packages/sdk/go/session.go
+++ b/packages/sdk/go/session.go
@@ -102,6 +102,30 @@ func (r *SessionService) Chat(ctx context.Context, id string, body SessionChatPa
 	return
 }
 
+// Get a session's children
+func (r *SessionService) Children(ctx context.Context, id string, opts ...option.RequestOption) (res *[]Session, err error) {
+	opts = append(r.Options[:], opts...)
+	if id == "" {
+		err = errors.New("missing required id parameter")
+		return
+	}
+	path := fmt.Sprintf("session/%s/children", id)
+	err = requestconfig.ExecuteNewRequest(ctx, http.MethodGet, path, nil, &res, opts...)
+	return
+}
+
+// Get session
+func (r *SessionService) Get(ctx context.Context, id string, opts ...option.RequestOption) (res *Session, err error) {
+	opts = append(r.Options[:], opts...)
+	if id == "" {
+		err = errors.New("missing required id parameter")
+		return
+	}
+	path := fmt.Sprintf("session/%s", id)
+	err = requestconfig.ExecuteNewRequest(ctx, http.MethodGet, path, nil, &res, opts...)
+	return
+}
+
 // Analyze the app and create an AGENTS.md file
 func (r *SessionService) Init(ctx context.Context, id string, body SessionInitParams, opts ...option.RequestOption) (res *bool, err error) {
 	opts = append(r.Options[:], opts...)
diff --git a/packages/sdk/go/session_test.go b/packages/sdk/go/session_test.go
index cf4a851c3..2f5e11104 100644
--- a/packages/sdk/go/session_test.go
+++ b/packages/sdk/go/session_test.go
@@ -174,6 +174,50 @@ func TestSessionChatWithOptionalParams(t *testing.T) {
 	}
 }
 
+func TestSessionChildren(t *testing.T) {
+	t.Skip("skipped: tests are disabled for the time being")
+	baseURL := "http://localhost:4010"
+	if envURL, ok := os.LookupEnv("TEST_API_BASE_URL"); ok {
+		baseURL = envURL
+	}
+	if !testutil.CheckTestServer(t, baseURL) {
+		return
+	}
+	client := opencode.NewClient(
+		option.WithBaseURL(baseURL),
+	)
+	_, err := client.Session.Children(context.TODO(), "id")
+	if err != nil {
+		var apierr *opencode.Error
+		if errors.As(err, &apierr) {
+			t.Log(string(apierr.DumpRequest(true)))
+		}
+		t.Fatalf("err should be nil: %s", err.Error())
+	}
+}
+
+func TestSessionGet(t *testing.T) {
+	t.Skip("skipped: tests are disabled for the time being")
+	baseURL := "http://localhost:4010"
+	if envURL, ok := os.LookupEnv("TEST_API_BASE_URL"); ok {
+		baseURL = envURL
+	}
+	if !testutil.CheckTestServer(t, baseURL) {
+		return
+	}
+	client := opencode.NewClient(
+		option.WithBaseURL(baseURL),
+	)
+	_, err := client.Session.Get(context.TODO(), "id")
+	if err != nil {
+		var apierr *opencode.Error
+		if errors.As(err, &apierr) {
+			t.Log(string(apierr.DumpRequest(true)))
+		}
+		t.Fatalf("err should be nil: %s", err.Error())
+	}
+}
+
 func TestSessionInit(t *testing.T) {
 	t.Skip("skipped: tests are disabled for the time being")
 	baseURL := "http://localhost:4010"
diff --git a/packages/sdk/js/src/gen/sdk.gen.ts b/packages/sdk/js/src/gen/sdk.gen.ts
index 1e0e1ae58..cb17a9b91 100644
--- a/packages/sdk/js/src/gen/sdk.gen.ts
+++ b/packages/sdk/js/src/gen/sdk.gen.ts
@@ -21,6 +21,8 @@ import type {
   SessionGetResponses,
   SessionUpdateData,
   SessionUpdateResponses,
+  SessionChildrenData,
+  SessionChildrenResponses,
   SessionInitData,
   SessionInitResponses,
   SessionAbortData,
@@ -248,6 +250,16 @@ class Session extends _HeyApiClient {
   }
 
   /**
+   * Get a session's children
+   */
+  public children<ThrowOnError extends boolean = false>(options: Options<SessionChildrenData, ThrowOnError>) {
+    return (options.client ?? this._client).get<SessionChildrenResponses, unknown, ThrowOnError>({
+      url: "/session/{id}/children",
+      ...options,
+    })
+  }
+
+  /**
    * Analyze the app and create an AGENTS.md file
    */
   public init<ThrowOnError extends boolean = false>(options: Options<SessionInitData, ThrowOnError>) {
diff --git a/packages/sdk/js/src/gen/types.gen.ts b/packages/sdk/js/src/gen/types.gen.ts
index 81faf7bf8..59679c714 100644
--- a/packages/sdk/js/src/gen/types.gen.ts
+++ b/packages/sdk/js/src/gen/types.gen.ts
@@ -1319,6 +1319,24 @@ export type SessionUpdateResponses = {
 
 export type SessionUpdateResponse = SessionUpdateResponses[keyof SessionUpdateResponses]
 
+export type SessionChildrenData = {
+  body?: never
+  path: {
+    id: string
+  }
+  query?: never
+  url: "/session/{id}/children"
+}
+
+export type SessionChildrenResponses = {
+  /**
+   * List of children
+   */
+  200: Array<Session>
+}
+
+export type SessionChildrenResponse = SessionChildrenResponses[keyof SessionChildrenResponses]
+
 export type SessionInitData = {
   body?: {
     messageID: string
diff --git a/packages/sdk/stainless/stainless.yml b/packages/sdk/stainless/stainless.yml
index 4ce3cd2ac..e0c040ec6 100644
--- a/packages/sdk/stainless/stainless.yml
+++ b/packages/sdk/stainless/stainless.yml
@@ -113,7 +113,9 @@ resources:
       toolStateError: ToolStateError
 
     methods:
+      get: get /session/{id}
       list: get /session
+      children: get /session/{id}/children
       create: post /session
       delete: delete /session/{id}
       init: post /session/{id}/init