Add Grok goal and subagent support

src/renderer/components/thread/ThreadGoalDock.tsx

@@ -139,7 +139,7 @@ function GoalObjectiveText({
   return (
     <div className="min-w-0 flex-1">
       <Tooltip delay={0}>
-        <Tooltip.Trigger>{text}</Tooltip.Trigger>
+        <Tooltip.Trigger className="block w-full min-w-0 overflow-hidden">{text}</Tooltip.Trigger>
         <Tooltip.Content className="max-w-[32rem] whitespace-normal break-words">
           <span className="block">{objective}</span>
           {lastReason ? (

src/supervisor/agents/acp/canonicalMapping.test.ts

@@ -36,6 +36,7 @@ describe("mapAcpSessionUpdate", () => {
             action: "set",
             objective: "Ship ACP goal support",
             status: "active",
+            availableActions: ["pause", "clear"],
             timeUsedSeconds: 0,
             updatedAt: 1_784_627_753.997,
           },
@@ -51,6 +52,7 @@ describe("mapAcpSessionUpdate", () => {
           action: "set",
           objective: "Ship ACP goal support",
           status: "active",
+          availableActions: ["pause", "clear"],
         }),
       }),
       expect.objectContaining({ type: "item.completed" }),

src/supervisor/agents/acp/canonicalMapping/dispatch.ts

@@ -154,6 +154,13 @@ export function mapAcpSessionUpdate(
     }
 
     case "agent_thought_chunk": {
+      const thoughtMeta =
+        update._meta && typeof update._meta === "object" && !Array.isArray(update._meta)
+          ? (update._meta as Record<string, unknown>)
+          : undefined;
+      if (thoughtMeta?.[PORACODE_ACP_NEW_ASSISTANT_ITEM_META_KEY] === true) {
+        events.push(...closeOpenContentItems(state));
+      }
       if (!state.openReasoningItemId) {
         // Close any prior assistant — reasoning bracket starts.
         if (state.openAssistantItemId) {

src/supervisor/agents/acp/canonicalMapping/goals.ts

@@ -4,7 +4,11 @@
  * shape before the shared canonical mapper sees it.
  */
 
-import type { GoalItemPayload, RuntimeEvent } from "@/shared/contracts";
+import {
+  goalControlActionSchema,
+  type GoalItemPayload,
+  type RuntimeEvent,
+} from "@/shared/contracts";
 import { startGoalItemEvents, updateGoalItemEvents } from "../../goalRuntime";
 import type { AcpMapperState } from "./state";
 import { newItemId } from "./state";
@@ -48,6 +52,8 @@ function readAcpCanonicalGoalUpdate(update: unknown): AcpCanonicalGoalUpdate | u
     "cancelled",
   ] as const);
   const objective = readString(raw.objective);
+  const availableActionsResult = goalControlActionSchema.array().safeParse(raw.availableActions);
+  const availableActions = availableActionsResult.success ? availableActionsResult.data : undefined;
   if (!action && !status && !objective) return undefined;
 
   return {
@@ -70,6 +76,7 @@ function readAcpCanonicalGoalUpdate(update: unknown): AcpCanonicalGoalUpdate | u
     ...(readString(raw.providerThreadId)
       ? { providerThreadId: readString(raw.providerThreadId)! }
       : {}),
+    ...(availableActions ? { availableActions } : {}),
     ...(readFiniteNumber(raw.updatedAt) !== undefined
       ? { updatedAt: readFiniteNumber(raw.updatedAt)! }
       : {}),

src/supervisor/agents/base/types.ts

@@ -383,6 +383,8 @@ export interface AgentAcpAuth {
 export interface AgentPromptFormatter {
   shouldDeferPromptToTerminal?(config: ThreadConfig): boolean;
   buildTerminalPreInputs?(config: ThreadConfig): string[][] | undefined;
+  /** Translate a canonical goal control into the provider's native prompt command. */
+  buildGoalControlPrompt?(control: ThreadGoalControl): string | undefined;
   buildDirectInput?(
     prompt: string,
     segments?: PromptSegment[],