Tasks dependencies

e2e/testdata/shared_tasks.yaml

@@ -0,0 +1,36 @@
+version: "2"
+
+agents:
+  root:
+    model: openai/gpt-5-mini
+    description: Coordinator that delegates to specialized agents
+    instruction: |
+      You coordinate work using a shared task list.
+      Use transfer_task to delegate work to sub-agents.
+    sub_agents:
+      - backend
+      - frontend
+    toolsets:
+      - type: tasks
+        shared: true
+      - type: transfer_task
+
+  backend:
+    model: openai/gpt-5-mini
+    description: Backend developer
+    instruction: |
+      You handle backend tasks.
+      You share a task list with other agents.
+    toolsets:
+      - type: tasks
+        shared: true
+
+  frontend:
+    model: openai/gpt-5-mini
+    description: Frontend developer
+    instruction: |
+      You handle frontend tasks.
+      You share a task list with other agents.
+    toolsets:
+      - type: tasks
+        shared: true

e2e/testdata/tasks_dependencies.yaml

@@ -0,0 +1,16 @@
+version: "2"
+
+agents:
+  root:
+    model: openai/gpt-5-mini
+    description: Test agent for tasks with dependencies
+    instruction: |
+      You are a helpful assistant that uses tasks tools with dependencies.
+
+      When creating tasks:
+      - Use blocked_by to specify dependencies
+      - Use owner to assign tasks
+
+      Always use the tasks tools to track work.
+    toolsets:
+      - type: tasks

golang_developer.yaml

@@ -97,7 +97,7 @@ agents:
     toolsets:
       - type: filesystem
       - type: shell
-      - type: todo
+      - type: tasks
       - type: fetch
     sub_agents:
       - librarian

pkg/teamloader/registry.go

@@ -59,6 +59,7 @@ func NewDefaultToolsetRegistry() *ToolsetRegistry {
 	r := NewToolsetRegistry()
 	// Register all built-in toolset creators
 	r.Register("todo", createTodoTool)
+	r.Register("tasks", createTasksTool)
 	r.Register("memory", createMemoryTool)
 	r.Register("think", createThinkTool)
 	r.Register("shell", createShellTool)
@@ -80,6 +81,13 @@ func createTodoTool(_ context.Context, toolset latest.Toolset, _ string, _ *conf
 	return builtin.NewTodoTool(), nil
 }
 
+func createTasksTool(_ context.Context, toolset latest.Toolset, _ string, _ *config.RuntimeConfig) (tools.ToolSet, error) {
+	if toolset.Shared {
+		return builtin.NewSharedTasksTool(), nil
+	}
+	return builtin.NewTasksTool(), nil
+}
+
 func createMemoryTool(_ context.Context, toolset latest.Toolset, parentDir string, runConfig *config.RuntimeConfig) (tools.ToolSet, error) {
 	var memoryPath string
 	if filepath.IsAbs(toolset.Path) {