diff --git a/.changeset/thirty-coins-punch.md b/.changeset/thirty-coins-punch.md
new file mode 100644
index 0000000..b713ecb
--- /dev/null
+++ b/.changeset/thirty-coins-punch.md
@@ -0,0 +1,5 @@
+---
+"@plotday/sdk": patch
+---
+
+Changed: ActivityType.Task now has a default start of new Date()
diff --git a/README.md b/README.md
index d8c4aba..375a330 100644
--- a/README.md
+++ b/README.md
@@ -7,8 +7,8 @@
   Plot Agent SDK
 </h1>
 <p align="center">
-  The official SDK for building Plot agents -<br/>
-  intelligent assistants that organize and prioritize your activities from all your apps.
+  The official SDK for building [Plot](https://plot.day) agents -<br/>
+  custom code that organize and prioritize all your messages, tasks, and apps.
 </p>
 
 ## Packages
@@ -19,10 +19,15 @@
 
 ## Quick Start
 
+You'll need a [Plot account](https://plot.day) to deploy agents.
+
 ```bash
 # Create a new agent
 npx @plotday/sdk agent create
 
+# Connect your Plot account
+npx @plotday/sdk login
+
 # Deploy your agent
 cd my-agent
 npm run deploy
diff --git a/sdk/README.md b/sdk/README.md
index 2e7f591..f1b3ebc 100644
--- a/sdk/README.md
+++ b/sdk/README.md
@@ -77,7 +77,6 @@ Activities are the core data type in Plot, representing tasks, events, and notes
 await this.plot.createActivity({
   type: ActivityType.Task,
   title: "Review pull request",
-  start: new Date(),
   links: [
     {
       type: ActivityLinkType.external,
diff --git a/sdk/cli/templates/AGENTS.template.md b/sdk/cli/templates/AGENTS.template.md
index a70a577..08fc3d4 100644
--- a/sdk/cli/templates/AGENTS.template.md
+++ b/sdk/cli/templates/AGENTS.template.md
@@ -112,7 +112,6 @@ async activate(_priority: Pick<Priority, "id">) {
   await this.plot.createActivity({
     type: ActivityType.Task,
     title: "Connect your account",
-    start: new Date(),
     links: [authLink],
   });
 }
@@ -124,7 +123,6 @@ async activate(_priority: Pick<Priority, "id">) {
 const activity = await this.plot.createActivity({
   type: ActivityType.Task,
   title: "Setup",
-  start: new Date(),
 });
 
 await this.set("setup_activity_id", activity.id);
@@ -200,7 +198,6 @@ async activate(_priority: Pick<Priority, "id">) {
   const activity = await this.plot.createActivity({
     type: ActivityType.Task,
     title: "Connect Google account",
-    start: new Date(),
     links: [authLink],
   });
 
@@ -383,32 +380,6 @@ try {
 - **Clean up callbacks and stored state** - Delete callbacks and Store entries when no longer needed.
 - **Handle missing auth gracefully** - Check for stored auth before operations.
 
-## Type Patterns
-
-### Entity Types
-
-Follow Plot's entity type patterns:
-
-```typescript
-export type Activity = {
-  id: string; // Required
-  type: ActivityType; // Required
-  title: string | null; // Nullable (not optional)
-  note: string | null; // Nullable (not optional)
-  start: Date | string | null; // Nullable (not optional)
-};
-
-export type NewActivity = {
-  type: Activity["type"]; // Only type is required
-} & Partial<Omit<Activity, "id" | "author" | "type">>;
-```
-
-This pattern distinguishes between:
-
-- Omitted fields (`undefined` in Partial types)
-- Explicitly set to null (clearing a value)
-- Set to a value
-
 ## Testing
 
 Before deploying, verify:
diff --git a/sdk/src/common/calendar.ts b/sdk/src/common/calendar.ts
index 27834d9..ddd824d 100644
--- a/sdk/src/common/calendar.ts
+++ b/sdk/src/common/calendar.ts
@@ -71,7 +71,6 @@ export interface SyncOptions {
  *       type: ActivityType.Task,
  *       title: "Connect Google Calendar",
  *       links: [authLink],
- *       start: new Date(),
  *     });
  *   }
  *
diff --git a/sdk/src/plot.ts b/sdk/src/plot.ts
index 9c7b48a..721b670 100644
--- a/sdk/src/plot.ts
+++ b/sdk/src/plot.ts
@@ -198,7 +198,6 @@ export type ActivitySource = {
  *   type: ActivityType.Task,
  *   title: "Review budget proposal",
  *   author: { id: "user-1", name: "John Doe", type: AuthorType.User },
- *   start: new Date(),
  *   end: null,
  *   priority: { id: "work", title: "Work" },
  *   // ... other fields
@@ -300,7 +299,6 @@ export type Activity = {
  * const newTask: NewActivity = {
  *   type: ActivityType.Task,
  *   title: "Review pull request",
- *   start: new Date(),
  *   links: [{
  *     title: "View PR",
  *     type: ActivityLinkType.external,