diff --git a/foundry/packages/backend/src/actors/repository/db/migrations.ts b/foundry/packages/backend/src/actors/repository/db/migrations.ts
index 2bd8fa0..f0a2543 100644
--- a/foundry/packages/backend/src/actors/repository/db/migrations.ts
+++ b/foundry/packages/backend/src/actors/repository/db/migrations.ts
@@ -32,7 +32,6 @@ CREATE TABLE \`task_index\` (
 --> statement-breakpoint
 CREATE TABLE \`tasks\` (
 	\`task_id\` text PRIMARY KEY NOT NULL,
-	\`repo_id\` text NOT NULL,
 	\`title\` text NOT NULL,
 	\`status\` text NOT NULL,
 	\`repo_name\` text NOT NULL,
diff --git a/foundry/packages/backend/src/actors/repository/db/schema.ts b/foundry/packages/backend/src/actors/repository/db/schema.ts
index 5c6c7ee..4a07332 100644
--- a/foundry/packages/backend/src/actors/repository/db/schema.ts
+++ b/foundry/packages/backend/src/actors/repository/db/schema.ts
@@ -41,19 +41,3 @@ export const tasks = sqliteTable("tasks", {
   pullRequestJson: text("pull_request_json"),
   sessionsSummaryJson: text("sessions_summary_json").notNull().default("[]"),
 });
-
-/**
- * Materialized task summary projection owned by the repository coordinator.
- * Task actors push updates here; organization reads fan in through repositories.
- */
-export const tasks = sqliteTable("tasks", {
-  taskId: text("task_id").notNull().primaryKey(),
-  repoId: text("repo_id").notNull(),
-  title: text("title").notNull(),
-  status: text("status").notNull(),
-  repoName: text("repo_name").notNull(),
-  updatedAtMs: integer("updated_at_ms").notNull(),
-  branch: text("branch"),
-  pullRequestJson: text("pull_request_json"),
-  sessionsSummaryJson: text("sessions_summary_json").notNull().default("[]"),
-});
diff --git a/foundry/packages/backend/src/actors/task/index.ts b/foundry/packages/backend/src/actors/task/index.ts
index e961e90..64d3d80 100644
--- a/foundry/packages/backend/src/actors/task/index.ts
+++ b/foundry/packages/backend/src/actors/task/index.ts
@@ -57,6 +57,7 @@ interface TaskActionCommand {
 
 interface TaskSessionCommand {
   sessionId: string;
+  authSessionId?: string;
 }
 
 interface TaskStatusSyncCommand {
diff --git a/foundry/packages/backend/src/actors/task/workflow/index.ts b/foundry/packages/backend/src/actors/task/workflow/index.ts
index 2c7c02e..663f800 100644
--- a/foundry/packages/backend/src/actors/task/workflow/index.ts
+++ b/foundry/packages/backend/src/actors/task/workflow/index.ts
@@ -113,7 +113,7 @@ const commandHandlers: Record<TaskQueueName, WorkflowHandler> = {
   },
 
   "task.command.workspace.mark_unread": async (loopCtx, msg) => {
-    await loopCtx.step("workspace-mark-unread", async () => markWorkspaceUnread(loopCtx));
+    await loopCtx.step("workspace-mark-unread", async () => markWorkspaceUnread(loopCtx, msg.body?.authSessionId));
     await msg.complete({ ok: true });
   },
 
@@ -127,7 +127,7 @@ const commandHandlers: Record<TaskQueueName, WorkflowHandler> = {
       const created = await loopCtx.step({
         name: "workspace-create-session",
         timeout: 5 * 60_000,
-        run: async () => createWorkspaceSession(loopCtx, msg.body?.model),
+        run: async () => createWorkspaceSession(loopCtx, msg.body?.model, msg.body?.authSessionId),
       });
       await msg.complete(created);
     } catch (error) {
@@ -140,12 +140,12 @@ const commandHandlers: Record<TaskQueueName, WorkflowHandler> = {
       const created = await loopCtx.step({
         name: "workspace-create-session-for-send",
         timeout: 5 * 60_000,
-        run: async () => createWorkspaceSession(loopCtx, msg.body?.model),
+        run: async () => createWorkspaceSession(loopCtx, msg.body?.model, msg.body?.authSessionId),
       });
       await loopCtx.step({
         name: "workspace-send-initial-message",
         timeout: 5 * 60_000,
-        run: async () => sendWorkspaceMessage(loopCtx, created.sessionId, msg.body.text, []),
+        run: async () => sendWorkspaceMessage(loopCtx, created.sessionId, msg.body.text, [], msg.body?.authSessionId),
       });
     } catch (error) {
       logActorWarning("task.workflow", "create_session_and_send failed", {
@@ -159,7 +159,7 @@ const commandHandlers: Record<TaskQueueName, WorkflowHandler> = {
     await loopCtx.step({
       name: "workspace-ensure-session",
       timeout: 5 * 60_000,
-      run: async () => ensureWorkspaceSession(loopCtx, msg.body.sessionId, msg.body?.model),
+      run: async () => ensureWorkspaceSession(loopCtx, msg.body.sessionId, msg.body?.model, msg.body?.authSessionId),
     });
     await msg.complete({ ok: true });
   },
@@ -170,12 +170,16 @@ const commandHandlers: Record<TaskQueueName, WorkflowHandler> = {
   },
 
   "task.command.workspace.set_session_unread": async (loopCtx, msg) => {
-    await loopCtx.step("workspace-set-session-unread", async () => setWorkspaceSessionUnread(loopCtx, msg.body.sessionId, msg.body.unread));
+    await loopCtx.step("workspace-set-session-unread", async () =>
+      setWorkspaceSessionUnread(loopCtx, msg.body.sessionId, msg.body.unread, msg.body?.authSessionId),
+    );
     await msg.complete({ ok: true });
   },
 
   "task.command.workspace.update_draft": async (loopCtx, msg) => {
-    await loopCtx.step("workspace-update-draft", async () => updateWorkspaceDraft(loopCtx, msg.body.sessionId, msg.body.text, msg.body.attachments));
+    await loopCtx.step("workspace-update-draft", async () =>
+      updateWorkspaceDraft(loopCtx, msg.body.sessionId, msg.body.text, msg.body.attachments, msg.body?.authSessionId),
+    );
     await msg.complete({ ok: true });
   },
 
@@ -189,7 +193,7 @@ const commandHandlers: Record<TaskQueueName, WorkflowHandler> = {
       await loopCtx.step({
         name: "workspace-send-message",
         timeout: 10 * 60_000,
-        run: async () => sendWorkspaceMessage(loopCtx, msg.body.sessionId, msg.body.text, msg.body.attachments),
+        run: async () => sendWorkspaceMessage(loopCtx, msg.body.sessionId, msg.body.text, msg.body.attachments, msg.body?.authSessionId),
       });
       await msg.complete({ ok: true });
     } catch (error) {
@@ -233,7 +237,7 @@ const commandHandlers: Record<TaskQueueName, WorkflowHandler> = {
     await loopCtx.step({
       name: "workspace-close-session",
       timeout: 5 * 60_000,
-      run: async () => closeWorkspaceSession(loopCtx, msg.body.sessionId),
+      run: async () => closeWorkspaceSession(loopCtx, msg.body.sessionId, msg.body?.authSessionId),
     });
     await msg.complete({ ok: true });
   },
diff --git a/foundry/packages/backend/src/actors/task/workspace.ts b/foundry/packages/backend/src/actors/task/workspace.ts
index 15f4483..81e6a97 100644
--- a/foundry/packages/backend/src/actors/task/workspace.ts
+++ b/foundry/packages/backend/src/actors/task/workspace.ts
@@ -1328,14 +1328,6 @@ export async function publishWorkspacePr(c: any): Promise<void> {
     githubToken: auth?.githubToken ?? null,
     baseBranch: metadata.defaultBranch ?? undefined,
   });
-  await c.db
-    .update(taskTable)
-    .set({
-      prSubmitted: 1,
-      updatedAt: Date.now(),
-    })
-    .where(eq(taskTable.id, 1))
-    .run();
   await broadcastTaskUpdate(c);
 }
 
diff --git a/foundry/packages/shared/src/workspace.ts b/foundry/packages/shared/src/workspace.ts
index 751ee0b..aa9aa99 100644
--- a/foundry/packages/shared/src/workspace.ts
+++ b/foundry/packages/shared/src/workspace.ts
@@ -104,15 +104,16 @@ export interface WorkspaceParsedDiffLine {
 
 export interface WorkspacePullRequestSummary {
   number: number;
-  title: string;
-  state: string;
-  url: string;
-  headRefName: string;
-  baseRefName: string;
-  repoFullName: string;
-  authorLogin: string | null;
-  isDraft: boolean;
-  updatedAtMs: number;
+  status: "draft" | "ready";
+  title?: string;
+  state?: string;
+  url?: string;
+  headRefName?: string;
+  baseRefName?: string;
+  repoFullName?: string;
+  authorLogin?: string | null;
+  isDraft?: boolean;
+  updatedAtMs?: number;
 }
 
 export interface WorkspaceSandboxSummary {
@@ -241,6 +242,7 @@ export interface TaskWorkspaceRenameInput {
   repoId: string;
   taskId: string;
   value: string;
+  authSessionId?: string;
 }
 
 export interface TaskWorkspaceSendMessageInput {