refactor: update README and security documentation; enhance activity lane layout and kanban integration

.github/SECURITY.md

@@ -34,10 +34,11 @@ Or with Docker Compose, uncomment `network_mode: "none"` in `docker/docker-compo
 
 ## IPC & Input Validation
 
-- All IPC handlers validate inputs with strict path containment checks
-- File reads are constrained to the project root and `~/.claude/`
+- Electron IPC and standalone HTTP handlers validate IDs, paths, and payloads at the boundary
+- Project editing and write operations are constrained to the selected project root
+- Read-only discovery may access local Claude data under `~/.claude/` and app-owned state paths when needed
 - Path traversal attacks are blocked
-- Sensitive credential paths are rejected
+- Sensitive config and credential-like paths are rejected or treated as protected targets
 
 ## Supported Versions
 

README.md

@@ -10,7 +10,7 @@
   <a href="docs/screenshots/6.png"><img src="docs/screenshots/6.png" width="65" alt="Settings" /></a>
 </p>
 
-<h1 align="center"><a href="https://777genius.github.io/claude_agent_teams_ui/">Claude Agent Teams UI</a></h1>
+<h1 align="center"><a href="https://777genius.github.io/claude_agent_teams_ui/">Agent Teams UI</a></h1>
 
 <p align="center">
   <strong><code>You're the CTO, agents are your team. They handle tasks themselves, message each other, review each other. You just look at the kanban board and drink coffee.</code></strong>
@@ -23,7 +23,7 @@
 </p>
 
 <p align="center">
-  <sub>100% free, open source. Auto-detects Claude/Codex. Use the provider access you already have - subscriptions/logins or API keys where supported. Not just coding agents.</sub>
+  <sub>100% free, open source. Auto-detects Claude/Codex. Use the provider access you already have -  subscriptions or API keys. Not just coding agents.</sub>
 </p>
 
 <img width="1500" height="1065" alt="demo" src="https://github.com/user-attachments/assets/be19cfcb-93ff-403a-9a1e-8ff1a803c55e" />
@@ -91,10 +91,10 @@ No prerequisites - the app can detect supported runtimes/providers and guide set
 - [Installation](#installation)
 - [Table of contents](#table-of-contents)
 - [What is this](#what-is-this)
+- [Developer architecture docs](#developer-architecture-docs)
 - [Comparison](#comparison)
 - [Quick start](#quick-start)
 - [FAQ](#faq)
-- [Developer architecture docs](#developer-architecture-docs)
 - [Development](#development)
 - [Tech stack](#tech-stack)
   - [Build for distribution](#build-for-distribution)
@@ -108,15 +108,14 @@ No prerequisites - the app can detect supported runtimes/providers and guide set
 
 A local orchestration layer for AI agent teams across Claude and Codex.
 
-- **Claude + Codex orchestration** — auto-detect available Claude/Codex runtimes and use the provider access you already have - subscriptions/logins or API keys where supported
+- **Claude + Codex orchestration** — auto-detect available Claude/Codex runtimes and use the provider access you already have - subscriptions or API keys
 - **Assemble your team** — create agent teams with different roles that work autonomously in parallel
 - **Agents talk to each other** — they communicate, create and manage their own tasks, review, leave comments
 - **Cross-team communication** — agents can fully communicate across different teams; you can configure or prompt them to collaborate and message each other between teams
 - **Sit back and watch** — tasks change status on the kanban board while agents handle everything on their own
 - **Review changes like in Cursor** — see what code each task changed, then approve, reject, or comment
 - **Built-in review workflow** — easily see how agents review each other's tasks to make sure everything went exactly as planned
-- **Full tool visibility** — inspect exactly which tools an agent used to complete each task
-- **Task-specific logs and messages** — clearly see agent/runtime logs and messages in isolation for each individual task, making it easy to trace what happened for any assignment
+- **Task-specific logs and messages** — clearly see agent/runtime logs (tools), actions and messages in isolation for each individual task, making it easy to trace what happened for any assignment
 - **Live process section** — see which agents are running processes and open URLs directly in the browser
 - **Stay in control** — send a direct message to any agent, drop a comment on a task, or pick a quick action right on the kanban card whenever you want to clarify something or add new work
 - **Flexible autonomy** — let agents run fully autonomous, or review and approve each action one by one (you'll get a notification) — configure the level of control that fits your security needs
@@ -168,7 +167,7 @@ For feature architecture and implementation guidance:
 
 ## Comparison
 
-| Feature | Claude Agent Teams UI | Vibe Kanban | Aperant | Cursor | Claude Code CLI |
+| Feature | Agent Teams UI | Vibe Kanban | Aperant | Cursor | Claude Code CLI |
 |---|---|---|---|---|---|
 | **Cross-team communication** | ✅ | ❌ | ❌ | — | ❌ |
 | **Agent-to-agent messaging** | ✅ Native real-time mailbox | ❌ Agents are independent | ❌ Fixed pipeline | ❌ | ✅⚠️ Built-in (no UI) |
@@ -306,7 +305,7 @@ pnpm dist            # macOS + Windows + Linux
 
 - [ ] Planning mode to organize agent plans before execution
 - [ ] Visual workflow editor ([@xyflow/react](https://github.com/xyflow/xyflow)) for building and orchestrating agent pipelines with drag & drop
-- [ ] Multi-model support: proxy layer to use other popular LLMs (GPT, Gemini, DeepSeek, Llama, etc.), including offline/local models
+- [ ] Support more models/providers (including local) e.g OpenCode (with many providers)
 - [ ] Remote agent execution via SSH: launch and manage agent teams on remote machines over SSH (stream-json protocol over SSH channel, SFTP-based file monitoring for tasks/inboxes/config)
 - [ ] CLI runtime: Run not only on a local PC but in any headless/console environment (web UI), e.g. VPS, remote server, etc.
 - [ ] 2 modes: current (agent teams), and a new mode: regular subagents (no communication between them)
@@ -317,6 +316,8 @@ pnpm dist            # macOS + Windows + Linux
 - [ ] Command palette — extend Cmd/Ctrl+K beyond project/session search to runnable actions (quick commands, navigation shortcuts, team/task operations) in a keyboard-first flow
 - [ ] Custom kanban columns
 - [ ] Run terminal commands
+- [ ] Monitor agents processes/stats
+- [ ] Reusable agents with SOUL.md
 
 ---
 
@@ -326,7 +327,7 @@ See [CONTRIBUTING.md](.github/CONTRIBUTING.md) for development guidelines. Pleas
 
 ## Security
 
-IPC handlers validate all inputs with strict path containment checks. File reads are constrained to the project root and `~/.claude`. Sensitive credential paths are blocked. See [SECURITY.md](.github/SECURITY.md) for details.
+IPC and standalone HTTP handlers validate IDs, paths, and payload shape at the boundary. Project editing and write operations are constrained to the selected project root, while read-only discovery also accesses local Claude data under `~/.claude/` and app-owned state paths when required. Path traversal and sensitive config/credential targets are blocked. See [SECURITY.md](.github/SECURITY.md) for details.
 
 ## License
 

packages/agent-graph/src/hooks/useGraphSimulation.ts

@@ -26,7 +26,6 @@ import { KanbanLayoutEngine } from '../layout/kanbanLayout';
 import {
   LAUNCH_ANCHOR_LAYOUT,
   getActivityAnchorId,
-  getHandoffAnchorBounds,
   getLaunchAnchorBounds,
   getLaunchAnchorId,
   getLaunchAnchorTarget,
@@ -34,7 +33,14 @@ import {
   isLaunchAnchorId,
   type WorldBounds,
 } from '../layout/launchAnchor';
-import { ACTIVITY_ANCHOR_LAYOUT, getActivityAnchorTarget } from '../layout/activityLane';
+import {
+  ACTIVITY_ANCHOR_LAYOUT,
+  buildVisibleActivityLaneBounds,
+  getActivityLaneBounds,
+  getActivityAnchorTarget,
+  packActivityLaneWorldRects,
+  resolveActivityLaneSide,
+} from '../layout/activityLane';
 
 // ─── Force Node/Link types (properly typed, no loose `string`) ──────────────
 
@@ -91,35 +97,71 @@ function syncLaunchAnchors(forceNodes: ForceNode[]): void {
   }
   const leadNode = forceNodes.find((node) => node.kind === 'lead');
   const leadX = leadNode?.x ?? leadNode?.fx ?? null;
+  const pendingActivityAnchors: Array<{
+    node: ForceNode;
+    target: { x: number; y: number };
+    side: 'left' | 'right';
+  }> = [];
 
   for (const node of forceNodes) {
-    let target: { x: number; y: number } | null = null;
     if (node.kind === 'launch-anchor' && node.anchorForLeadId) {
       const leadNode = forceNodeMap.get(node.anchorForLeadId);
       if (!leadNode) continue;
-      target = getLaunchAnchorTarget(leadNode.x ?? 0, leadNode.y ?? 0);
-    } else if (node.kind === 'activity-anchor' && node.anchorForNodeId) {
+      const target = getLaunchAnchorTarget(leadNode.x ?? 0, leadNode.y ?? 0);
+      node.fx = target.x;
+      node.fy = target.y;
+      node.x = target.x;
+      node.y = target.y;
+      node.vx = 0;
+      node.vy = 0;
+      continue;
+    }
+
+    if (node.kind === 'activity-anchor' && node.anchorForNodeId) {
       const ownerNode = forceNodeMap.get(node.anchorForNodeId);
       if (!ownerNode || (ownerNode.kind !== 'lead' && ownerNode.kind !== 'member')) continue;
-      target = getActivityAnchorTarget({
+      const target = getActivityAnchorTarget({
         nodeX: ownerNode.x ?? 0,
         nodeY: ownerNode.y ?? 0,
         nodeKind: ownerNode.kind,
         leadX,
       });
-    } else {
-      continue;
-    }
-    if (!target) {
-      continue;
+      pendingActivityAnchors.push({
+        node,
+        target,
+        side: resolveActivityLaneSide({
+          nodeKind: ownerNode.kind,
+          nodeX: ownerNode.x ?? 0,
+          leadX,
+        }),
+      });
     }
+  }
 
-    node.fx = target.x;
-    node.fy = target.y;
-    node.x = target.x;
-    node.y = target.y;
-    node.vx = 0;
-    node.vy = 0;
+  const packedActivityAnchors = packActivityLaneWorldRects(
+    pendingActivityAnchors.map(({ node, target, side }) => ({
+      id: node.id,
+      side,
+      x: target.x,
+      y: target.y,
+      width: ACTIVITY_ANCHOR_LAYOUT.reservedWidth,
+      height: ACTIVITY_ANCHOR_LAYOUT.reservedHeight,
+    })),
+    18,
+  );
+
+  for (const entry of pendingActivityAnchors) {
+    const packed = packedActivityAnchors.get(entry.node.id);
+    const centerX = (packed?.x ?? entry.target.x)
+      + ACTIVITY_ANCHOR_LAYOUT.reservedWidth / 2;
+    const centerY = (packed?.y ?? entry.target.y)
+      + ACTIVITY_ANCHOR_LAYOUT.reservedHeight / 2;
+    entry.node.fx = centerX;
+    entry.node.fy = centerY;
+    entry.node.x = centerX;
+    entry.node.y = centerY;
+    entry.node.vx = 0;
+    entry.node.vy = 0;
   }
 }
 
@@ -142,8 +184,12 @@ function updateLaunchAnchorCaches(
       continue;
     }
     if (node.kind === 'activity-anchor' && node.anchorForNodeId) {
-      activityPositions.set(node.anchorForNodeId, { x, y });
-      bounds.push(getHandoffAnchorBounds(x, y));
+      const topLeft = {
+        x: x - ACTIVITY_ANCHOR_LAYOUT.reservedWidth / 2,
+        y: y - ACTIVITY_ANCHOR_LAYOUT.reservedHeight / 2,
+      };
+      activityPositions.set(node.anchorForNodeId, topLeft);
+      bounds.push(getActivityLaneBounds(topLeft.x, topLeft.y));
     }
   }
 }
@@ -314,7 +360,12 @@ export function useGraphSimulation(): UseGraphSimulationResult {
     }
 
     // Position tasks in kanban zones relative to their owners
-    KanbanLayoutEngine.layout(nodes);
+    KanbanLayoutEngine.layout(nodes, {
+      activityLaneBounds: buildVisibleActivityLaneBounds(
+        nodes,
+        activityAnchorPositionsRef.current
+      ),
+    });
     updateLaunchAnchorCaches(
       sim.nodes(),
       launchAnchorPositionsRef.current,
@@ -515,7 +566,9 @@ function tickFrame(
   }
 
   // Re-layout tasks in kanban zones — always run to handle new/moved tasks
-  KanbanLayoutEngine.layout(state.nodes);
+  KanbanLayoutEngine.layout(state.nodes, {
+    activityLaneBounds: buildVisibleActivityLaneBounds(state.nodes, activityAnchorPositions),
+  });
 
   // Update particle progress — in-place removal (no new array allocation)
   let pw = 0;

packages/agent-graph/src/layout/activityLane.ts

@@ -1,20 +1,21 @@
-import { KANBAN_ZONE, NODE, TASK_PILL } from '../constants/canvas-constants';
+import { CAMERA, KANBAN_ZONE, NODE, TASK_PILL } from '../constants/canvas-constants';
 import type { GraphActivityItem, GraphNode } from '../ports/types';
 
 export const ACTIVITY_LANE = {
   width: 296,
-  itemHeight: 58,
-  rowHeight: 62,
+  itemHeight: 72,
+  rowHeight: 80,
   maxVisibleItems: 3,
-  headerHeight: 18,
-  overflowHeight: 18,
+  headerHeight: 20,
+  overflowHeight: 32,
   horizontalGapLead: 76,
   horizontalGapMember: 84,
-  bottomClearance: 18,
+  ownerClearanceLead: 92,
+  ownerClearanceMember: 104,
   viewportPadding: 12,
   visiblePadding: 80,
-  minScale: 0,
-  maxScale: 1,
+  minScale: CAMERA.minZoom,
+  maxScale: CAMERA.maxZoom,
 } as const;
 
 const RESERVED_HEIGHT =
@@ -26,10 +27,10 @@ export const ACTIVITY_ANCHOR_LAYOUT = {
   reservedWidth: ACTIVITY_LANE.width,
   reservedHeight: RESERVED_HEIGHT,
   memberOffsetX: ACTIVITY_LANE.width / 2 + NODE.radiusMember + ACTIVITY_LANE.horizontalGapMember,
-  memberOffsetY: -(RESERVED_HEIGHT / 2 - ACTIVITY_LANE.bottomClearance),
+  memberOffsetY: -(RESERVED_HEIGHT + NODE.radiusMember + ACTIVITY_LANE.ownerClearanceMember),
   leadOffsetX: -(ACTIVITY_LANE.width / 2 + NODE.radiusLead + ACTIVITY_LANE.horizontalGapLead),
-  leadOffsetY: -(RESERVED_HEIGHT / 2 - ACTIVITY_LANE.bottomClearance),
-  collisionRadius: Math.ceil(Math.hypot(ACTIVITY_LANE.width / 2, RESERVED_HEIGHT / 2)) + 12,
+  leadOffsetY: -(RESERVED_HEIGHT + NODE.radiusLead + ACTIVITY_LANE.ownerClearanceLead),
+  collisionRadius: Math.ceil(Math.hypot(ACTIVITY_LANE.width / 2, RESERVED_HEIGHT / 2)) + 56,
 } as const;
 
 export interface ActivityLaneWindow {
@@ -51,6 +52,32 @@ export interface ActivityLaneItemHit {
 
 export type ActivityLaneSide = 'left' | 'right';
 
+export interface ActivityLaneScreenRect {
+  id: string;
+  side: ActivityLaneSide;
+  x: number;
+  y: number;
+  width: number;
+  height: number;
+}
+
+export interface ActivityLaneWorldRect {
+  id: string;
+  side: ActivityLaneSide;
+  x: number;
+  y: number;
+  width: number;
+  height: number;
+}
+
+export interface ActivityLaneWorldBounds {
+  ownerId: string;
+  left: number;
+  top: number;
+  right: number;
+  bottom: number;
+}
+
 export function resolveActivityLaneSide(args: {
   nodeKind: 'lead' | 'member';
   nodeX: number;
@@ -72,18 +99,14 @@ export function getActivityAnchorTarget(args: {
   nodeKind: 'lead' | 'member';
   leadX?: number | null;
 }): { x: number; y: number } {
-  const { nodeX, nodeY, nodeKind, leadX } = args;
-  const side = resolveActivityLaneSide({ nodeKind, nodeX, leadX });
-  if (side === 'left') {
-    return {
-      x: nodeX + ACTIVITY_ANCHOR_LAYOUT.leadOffsetX,
-      y: nodeY + ACTIVITY_ANCHOR_LAYOUT.leadOffsetY,
-    };
-  }
-
+  const { nodeX, nodeY, nodeKind } = args;
   return {
-    x: nodeX + ACTIVITY_ANCHOR_LAYOUT.memberOffsetX,
-    y: nodeY + ACTIVITY_ANCHOR_LAYOUT.memberOffsetY,
+    x: nodeX - ACTIVITY_ANCHOR_LAYOUT.reservedWidth / 2,
+    y:
+      nodeY +
+      (nodeKind === 'lead'
+        ? ACTIVITY_ANCHOR_LAYOUT.leadOffsetY
+        : ACTIVITY_ANCHOR_LAYOUT.memberOffsetY),
   };
 }
 
@@ -93,16 +116,42 @@ export function getActivityLaneBounds(anchorX: number, anchorY: number): {
   right: number;
   bottom: number;
 } {
-  const halfWidth = ACTIVITY_ANCHOR_LAYOUT.reservedWidth / 2;
-  const halfHeight = ACTIVITY_ANCHOR_LAYOUT.reservedHeight / 2;
   return {
-    left: anchorX - halfWidth,
-    top: anchorY - halfHeight,
-    right: anchorX + halfWidth,
-    bottom: anchorY + halfHeight,
+    left: anchorX,
+    top: anchorY,
+    right: anchorX + ACTIVITY_ANCHOR_LAYOUT.reservedWidth,
+    bottom: anchorY + ACTIVITY_ANCHOR_LAYOUT.reservedHeight,
   };
 }
 
+export function buildVisibleActivityLaneBounds(
+  nodes: GraphNode[],
+  activityPositions: ReadonlyMap<string, { x: number; y: number }>
+): ActivityLaneWorldBounds[] {
+  const bounds: ActivityLaneWorldBounds[] = [];
+
+  for (const node of nodes) {
+    if (node.kind !== 'lead' && node.kind !== 'member') {
+      continue;
+    }
+    const visibleCount = node.activityItems?.length ?? 0;
+    const overflowCount = node.activityOverflowCount ?? 0;
+    if (visibleCount <= 0 && overflowCount <= 0) {
+      continue;
+    }
+    const topLeft = activityPositions.get(node.id);
+    if (!topLeft) {
+      continue;
+    }
+    bounds.push({
+      ownerId: node.id,
+      ...getActivityLaneBounds(topLeft.x, topLeft.y),
+    });
+  }
+
+  return bounds;
+}
+
 export function getActivityLaneScale(zoom: number): number {
   return Math.max(ACTIVITY_LANE.minScale, Math.min(ACTIVITY_LANE.maxScale, zoom));
 }
@@ -120,10 +169,8 @@ export function getActivityAnchorScreenPlacement(args: {
   const scale = getActivityLaneScale(zoom);
   const scaledWidth = ACTIVITY_LANE.width * scale;
   const scaledHeight = ACTIVITY_ANCHOR_LAYOUT.reservedHeight * scale;
-  const screenX = anchorX * zoom + cameraX;
-  const screenY = anchorY * zoom + cameraY;
-  const x = screenX - scaledWidth / 2;
-  const y = screenY - scaledHeight / 2;
+  const x = anchorX * zoom + cameraX;
+  const y = anchorY * zoom + cameraY;
   const right = x + scaledWidth;
   const bottom = y + scaledHeight;
 
@@ -152,6 +199,64 @@ export function getVisibleActivityWindow(
   };
 }
 
+export function packActivityLaneScreenRects(
+  rects: ActivityLaneScreenRect[],
+  gap = 8
+): Map<string, { x: number; y: number }> {
+  return packActivityLaneRects(rects, gap, true);
+}
+
+export function packActivityLaneWorldRects(
+  rects: ActivityLaneWorldRect[],
+  gap = 8
+): Map<string, { x: number; y: number }> {
+  return packActivityLaneRects(rects, gap, false);
+}
+
+function packActivityLaneRects<T extends {
+  id: string;
+  side: ActivityLaneSide;
+  x: number;
+  y: number;
+  width: number;
+  height: number;
+}>(
+  rects: T[],
+  gap = 8,
+  groupBySide = true
+): Map<string, { x: number; y: number }> {
+  const placements = new Map<string, { x: number; y: number }>();
+
+  const sideGroups = groupBySide ? (['left', 'right'] as const) : (['left'] as const);
+
+  for (const side of sideGroups) {
+    const sideRects = rects
+      .filter((rect) => !groupBySide || rect.side === side)
+      .sort((a, b) => (a.y === b.y ? a.x - b.x : a.y - b.y));
+    const placed: Array<ActivityLaneScreenRect & { placedY: number }> = [];
+
+    for (const rect of sideRects) {
+      let placedY = rect.y;
+
+      for (const prev of placed) {
+        if (!rangesOverlap(rect.x, rect.x + rect.width, prev.x, prev.x + prev.width)) {
+          continue;
+        }
+
+        const prevBottom = prev.placedY + prev.height;
+        if (placedY < prevBottom + gap && placedY + rect.height > prev.placedY - gap) {
+          placedY = prevBottom + gap;
+        }
+      }
+
+      placed.push({ ...rect, placedY });
+      placements.set(rect.id, { x: rect.x, y: placedY });
+    }
+  }
+
+  return placements;
+}
+
 export function findActivityItemAt(
   worldX: number,
   worldY: number,
@@ -194,3 +299,7 @@ export function findActivityItemAt(
 export function isActivityOwner(node: GraphNode): node is GraphNode & { kind: 'lead' | 'member' } {
   return node.kind === 'lead' || node.kind === 'member';
 }
+
+function rangesOverlap(aStart: number, aEnd: number, bStart: number, bEnd: number): boolean {
+  return aStart < bEnd && aEnd > bStart;
+}

packages/agent-graph/src/layout/kanbanLayout.ts

@@ -8,9 +8,10 @@
  */
 
 import type { GraphNode } from '../ports/types';
-import { KANBAN_ZONE } from '../constants/canvas-constants';
+import { KANBAN_ZONE, TASK_PILL } from '../constants/canvas-constants';
 import { COLORS } from '../constants/colors';
 import { resolveActivityLaneSide } from './activityLane';
+import type { ActivityLaneWorldBounds } from './activityLane';
 
 /** Column header info for rendering */
 export interface KanbanColumnHeader {
@@ -41,6 +42,8 @@ const COLUMN_LABELS: Record<string, { label: string; color: string }> = {
   approved: { label: 'Approved', color: COLORS.reviewApproved },
 };
 
+const ACTIVITY_KANBAN_CLEARANCE = 24;
+
 export function getOwnerKanbanBaseX(args: {
   ownerX: number;
   ownerKind: GraphNode['kind'];
@@ -84,11 +87,15 @@ export class KanbanLayoutEngine {
    * Position all task nodes in kanban columns relative to their owner.
    * Call AFTER d3-force settles member positions, BEFORE drawing.
    */
-  static layout(nodes: GraphNode[]): void {
+  static layout(
+    nodes: GraphNode[],
+    options?: { activityLaneBounds?: readonly ActivityLaneWorldBounds[] }
+  ): void {
     const nodeMap = this.#nodeMap;
     nodeMap.clear();
     for (const n of nodes) nodeMap.set(n.id, n);
     const leadX = nodes.find((node) => node.kind === 'lead')?.x ?? null;
+    const activityLaneBounds = options?.activityLaneBounds ?? [];
 
     const tasksByOwner = this.#tasksByOwner;
     tasksByOwner.clear();
@@ -115,7 +122,13 @@ export class KanbanLayoutEngine {
     for (const [ownerId, tasks] of tasksByOwner) {
       const owner = nodeMap.get(ownerId);
       if (!owner || owner.x == null || owner.y == null) continue;
-      const zoneInfo = KanbanLayoutEngine.#layoutZone(tasks, owner, ownerId, leadX);
+      const zoneInfo = KanbanLayoutEngine.#layoutZone(
+        tasks,
+        owner,
+        ownerId,
+        leadX,
+        activityLaneBounds
+      );
       if (zoneInfo) this.zones.push(zoneInfo);
     }
 
@@ -128,13 +141,13 @@ export class KanbanLayoutEngine {
     tasks: GraphNode[],
     owner: GraphNode,
     ownerId: string,
-    leadX: number | null
+    leadX: number | null,
+    activityLaneBounds: readonly ActivityLaneWorldBounds[]
   ): KanbanZoneInfo | null {
     const { columnWidth, rowHeight, offsetY, columns } = KANBAN_ZONE;
     const headerHeight = 20; // space for column header label
     const ownerX = owner.x ?? 0;
     const ownerY = owner.y ?? 0;
-    const baseY = ownerY + offsetY;
 
     // Classify tasks into columns
     const colTasks = KanbanLayoutEngine.#colTasks;
@@ -166,6 +179,24 @@ export class KanbanLayoutEngine {
       columnWidth,
       leadX,
     });
+    const taskZoneLeft = baseX - TASK_PILL.width / 2;
+    const taskZoneRight =
+      baseX + (activeColumns.length - 1) * columnWidth + TASK_PILL.width / 2;
+    const overlappingActivityBottom = activityLaneBounds.reduce((maxBottom, bounds) => {
+      if (bounds.ownerId === ownerId) {
+        return Math.max(maxBottom, bounds.bottom);
+      }
+      if (!rangesOverlap(taskZoneLeft, taskZoneRight, bounds.left, bounds.right)) {
+        return maxBottom;
+      }
+      return Math.max(maxBottom, bounds.bottom);
+    }, -Infinity);
+    const baseY = Math.max(
+      ownerY + offsetY,
+      overlappingActivityBottom > -Infinity
+        ? overlappingActivityBottom + ACTIVITY_KANBAN_CLEARANCE
+        : -Infinity
+    );
 
     // Build headers + position tasks
     const headers: KanbanColumnHeader[] = [];
@@ -274,3 +305,7 @@ export class KanbanLayoutEngine {
     }
   }
 }
+
+function rangesOverlap(aStart: number, aEnd: number, bStart: number, bEnd: number): boolean {
+  return aStart < bEnd && bStart < aEnd;
+}

packages/agent-graph/src/layout/launchAnchor.ts

@@ -1,8 +1,7 @@
 import { NODE } from '../constants/canvas-constants';
 import {
   ACTIVITY_ANCHOR_LAYOUT,
-  getActivityAnchorTarget,
-  getActivityLaneBounds,
+  resolveActivityLaneSide,
 } from './activityLane';
 
 export interface WorldBounds {
@@ -76,9 +75,38 @@ export const getLaunchHudBounds = getLaunchAnchorBounds;
 export const HANDOFF_ANCHOR_LAYOUT = ACTIVITY_ANCHOR_LAYOUT;
 export const getHandoffAnchorId = getActivityAnchorId;
 export const isHandoffAnchorId = isActivityAnchorId;
-export { getActivityAnchorTarget };
-export const getHandoffAnchorTarget = getActivityAnchorTarget;
-export const getHandoffAnchorBounds = getActivityLaneBounds;
+
+export function getHandoffAnchorTarget(args: {
+  nodeX: number;
+  nodeY: number;
+  nodeKind: 'lead' | 'member';
+  leadX?: number | null;
+}): { x: number; y: number } {
+  const { nodeX, nodeY, nodeKind, leadX } = args;
+  const side = resolveActivityLaneSide({ nodeKind, nodeX, leadX });
+  if (side === 'left') {
+    return {
+      x: nodeX + ACTIVITY_ANCHOR_LAYOUT.leadOffsetX,
+      y: nodeY + ACTIVITY_ANCHOR_LAYOUT.leadOffsetY,
+    };
+  }
+
+  return {
+    x: nodeX + ACTIVITY_ANCHOR_LAYOUT.memberOffsetX,
+    y: nodeY + ACTIVITY_ANCHOR_LAYOUT.memberOffsetY,
+  };
+}
+
+export function getHandoffAnchorBounds(anchorX: number, anchorY: number): WorldBounds {
+  const halfWidth = ACTIVITY_ANCHOR_LAYOUT.reservedWidth / 2;
+  const halfHeight = ACTIVITY_ANCHOR_LAYOUT.reservedHeight / 2;
+  return {
+    left: anchorX - halfWidth,
+    top: anchorY - halfHeight,
+    right: anchorX + halfWidth,
+    bottom: anchorY + halfHeight,
+  };
+}
 
 export function getLaunchAnchorScreenPlacement(args: {
   anchorX: number;

packages/agent-graph/src/ui/GraphView.tsx

@@ -65,6 +65,13 @@ export interface GraphViewProps {
     getActivityAnchorScreenPlacement: (
       ownerNodeId: string,
     ) => { x: number; y: number; scale: number; visible: boolean } | null;
+    getActivityAnchorWorldPosition: (
+      ownerNodeId: string,
+    ) => { x: number; y: number } | null;
+    getCameraZoom: () => number;
+    worldToScreen: (x: number, y: number) => { x: number; y: number };
+    getNodeWorldPosition: (nodeId: string) => { x: number; y: number } | null;
+    getViewportSize: () => { width: number; height: number };
     getNodeScreenPosition: (
       nodeId: string,
     ) => { x: number; y: number; visible: boolean } | null;
@@ -229,6 +236,11 @@ export function GraphView({
       viewportHeight: viewport.height,
     });
   }, [getViewportSize]);
+  const getActivityAnchorWorldPosition = useCallback(
+    (ownerNodeId: string) => simulationRef.current.getActivityAnchorWorldPosition(ownerNodeId),
+    [],
+  );
+  const getCameraZoom = useCallback(() => cameraRef.current.transformRef.current.zoom, []);
   const getNodeScreenPosition = useCallback((nodeId: string) => {
     const viewport = getViewportSize();
     if (viewport.width <= 0 || viewport.height <= 0) {
@@ -247,6 +259,13 @@ export function GraphView({
       visible: x > -80 && x < viewport.width + 80 && y > -80 && y < viewport.height + 80,
     };
   }, [getViewportSize]);
+  const getNodeWorldPosition = useCallback((nodeId: string) => {
+    const node = simulationRef.current.stateRef.current.nodes.find((candidate) => candidate.id === nodeId);
+    if (!node || node.x == null || node.y == null) {
+      return null;
+    }
+    return { x: node.x, y: node.y };
+  }, []);
 
   const animate = useCallback(() => {
     if (!runningRef.current) return;
@@ -710,6 +729,11 @@ export function GraphView({
           {renderHud({
             getLaunchAnchorScreenPlacement,
             getActivityAnchorScreenPlacement,
+            getActivityAnchorWorldPosition,
+            getCameraZoom,
+            worldToScreen: camera.worldToScreen,
+            getNodeWorldPosition,
+            getViewportSize,
             getNodeScreenPosition,
             focusNodeIds: focusState.focusNodeIds,
           })}

src/features/agent-graph/renderer/ui/GraphActivityHud.tsx

@@ -33,6 +33,11 @@ interface GraphActivityHudProps {
   getActivityAnchorScreenPlacement: (
     ownerNodeId: string
   ) => { x: number; y: number; scale: number; visible: boolean } | null;
+  getActivityAnchorWorldPosition?: (ownerNodeId: string) => { x: number; y: number } | null;
+  getCameraZoom?: () => number;
+  worldToScreen?: (x: number, y: number) => { x: number; y: number };
+  getNodeWorldPosition?: (nodeId: string) => { x: number; y: number } | null;
+  getViewportSize?: () => { width: number; height: number };
   getNodeScreenPosition?: (nodeId: string) => { x: number; y: number; visible: boolean } | null;
   focusNodeIds: ReadonlySet<string> | null;
   enabled?: boolean;
@@ -50,12 +55,19 @@ export const GraphActivityHud = ({
   teamName,
   nodes,
   getActivityAnchorScreenPlacement,
+  getActivityAnchorWorldPosition = () => null,
+  getCameraZoom = () => 1,
+  worldToScreen,
+  getNodeWorldPosition = () => null,
+  getViewportSize,
   getNodeScreenPosition = () => null,
   focusNodeIds,
   enabled = true,
   onOpenTaskDetail,
   onOpenMemberProfile,
 }: GraphActivityHudProps): React.JSX.Element | null => {
+  const ACTIVITY_LANE_WIDTH = 296;
+  const worldLayerRef = useRef<HTMLDivElement | null>(null);
   const shellRefs = useRef(new Map<string, HTMLDivElement | null>());
   const connectorRefs = useRef(new Map<string, SVGSVGElement | null>());
   const connectorPathRefs = useRef(new Map<string, SVGPathElement | null>());
@@ -140,16 +152,35 @@ export const GraphActivityHud = ({
 
     let frameId = 0;
     const updatePositions = (): void => {
+      const worldLayer = worldLayerRef.current;
+      if (worldLayer && worldToScreen) {
+        const origin = worldToScreen(0, 0);
+        const zoom = Math.max(getCameraZoom(), 0.001);
+        worldLayer.style.transform = `translate(${Math.round(origin.x)}px, ${Math.round(origin.y)}px) scale(${zoom.toFixed(3)})`;
+      }
+
+      const measurableLanes: Array<{
+        lane: (typeof visibleLanes)[number];
+        shell: HTMLDivElement;
+        connector: SVGSVGElement | null;
+        connectorPath: SVGPathElement | null;
+        laneTopLeft: { x: number; y: number };
+        nodeWorld: { x: number; y: number };
+        scale: number;
+      }> = [];
+
       for (const lane of visibleLanes) {
         const shell = shellRefs.current.get(lane.node.id);
         if (!shell) {
           continue;
         }
-        const connector = connectorRefs.current.get(lane.node.id);
+        const connector = connectorRefs.current.get(lane.node.id) ?? null;
         const connectorPath = connectorPathRefs.current.get(lane.node.id) ?? null;
 
         const placement = getActivityAnchorScreenPlacement(lane.node.id);
-        if (!placement?.visible) {
+        const laneTopLeft = getActivityAnchorWorldPosition(lane.node.id);
+        const nodeWorld = getNodeWorldPosition(lane.node.id);
+        if (!placement || !laneTopLeft || !nodeWorld) {
           shell.style.opacity = '0';
           if (connector) {
             connector.style.opacity = '0';
@@ -157,27 +188,57 @@ export const GraphActivityHud = ({
           continue;
         }
 
+        const scale = Math.max(getCameraZoom(), 0.001);
+        const widthScreen = Math.max(1, (shell.offsetWidth || ACTIVITY_LANE_WIDTH) * scale);
+        const heightScreen = Math.max(1, (shell.offsetHeight || 220) * scale);
+        const viewport = getViewportSize?.();
+        const laneVisible = viewport
+          ? placement.x + widthScreen > -80 &&
+            placement.x < viewport.width + 80 &&
+            placement.y + heightScreen > -80 &&
+            placement.y < viewport.height + 80
+          : placement.visible;
+
+        const nodeScreen = getNodeScreenPosition(lane.node.id);
+        if (!nodeScreen?.visible || !laneVisible) {
+          shell.style.opacity = '0';
+          if (connector) {
+            connector.style.opacity = '0';
+          }
+          continue;
+        }
+
+        measurableLanes.push({
+          lane,
+          shell,
+          connector,
+          connectorPath,
+          laneTopLeft,
+          nodeWorld,
+          scale,
+        });
+      }
+
+      for (const entry of measurableLanes) {
+        const { lane, shell, connector, connectorPath, laneTopLeft, nodeWorld, scale } = entry;
         const baseOpacity = focusNodeIds && !focusNodeIds.has(lane.node.id) ? 0.25 : 1;
         shell.style.opacity = String(baseOpacity);
-        shell.style.transform = `translate(${Math.round(placement.x)}px, ${Math.round(placement.y)}px) scale(${placement.scale.toFixed(3)})`;
+        shell.style.left = `${Math.round(laneTopLeft.x)}px`;
+        shell.style.top = `${Math.round(laneTopLeft.y)}px`;
+        shell.style.transform = '';
 
         if (connector && connectorPath) {
-          const nodeScreen = getNodeScreenPosition(lane.node.id);
-          if (!nodeScreen?.visible) {
-            connector.style.opacity = '0';
-            continue;
-          }
-          const scaledWidth = (shell.offsetWidth || 296) * placement.scale;
-          const laneCenterX = placement.x + scaledWidth / 2;
-          const laneIsLeft = laneCenterX < nodeScreen.x;
-          const endX = laneIsLeft ? placement.x + scaledWidth - 8 : placement.x + 8;
-          const endY = placement.y + 10 * placement.scale;
-          const startX = nodeScreen.x;
-          const startY = nodeScreen.y - 10;
+          const widthWorld = shell.offsetWidth || ACTIVITY_LANE_WIDTH;
+          const laneCenterX = laneTopLeft.x + widthWorld / 2;
+          const laneIsLeft = laneCenterX < nodeWorld.x;
+          const endX = laneIsLeft ? laneTopLeft.x + widthWorld - 8 : laneTopLeft.x + 8;
+          const endY = laneTopLeft.y + 10;
+          const startX = nodeWorld.x;
+          const startY = nodeWorld.y - 10 / scale;
           const minX = Math.min(startX, endX);
           const minY = Math.min(startY, endY);
-          const width = Math.max(1, Math.abs(endX - startX));
-          const height = Math.max(1, Math.abs(endY - startY));
+          const connectorWidth = Math.max(1, Math.abs(endX - startX));
+          const connectorHeight = Math.max(1, Math.abs(endY - startY));
           const localStartX = startX - minX;
           const localStartY = startY - minY;
           const localEndX = endX - minX;
@@ -192,9 +253,12 @@ export const GraphActivityHud = ({
           connector.style.opacity = String(baseOpacity);
           connector.style.left = `${Math.round(minX)}px`;
           connector.style.top = `${Math.round(minY)}px`;
-          connector.setAttribute('width', String(Math.ceil(width)));
-          connector.setAttribute('height', String(Math.ceil(height)));
-          connector.setAttribute('viewBox', `0 0 ${Math.ceil(width)} ${Math.ceil(height)}`);
+          connector.setAttribute('width', String(Math.ceil(connectorWidth)));
+          connector.setAttribute('height', String(Math.ceil(connectorHeight)));
+          connector.setAttribute(
+            'viewBox',
+            `0 0 ${Math.ceil(connectorWidth)} ${Math.ceil(connectorHeight)}`
+          );
           connectorPath.setAttribute(
             'd',
             `M ${localStartX.toFixed(1)} ${localStartY.toFixed(1)} C ${c1x.toFixed(1)} ${c1y.toFixed(1)}, ${c2x.toFixed(1)} ${c2y.toFixed(1)}, ${localEndX.toFixed(1)} ${localEndY.toFixed(1)}`
@@ -213,7 +277,12 @@ export const GraphActivityHud = ({
     enabled,
     focusNodeIds,
     getActivityAnchorScreenPlacement,
+    getActivityAnchorWorldPosition,
+    getCameraZoom,
+    getNodeWorldPosition,
     getNodeScreenPosition,
+    getViewportSize,
+    worldToScreen,
     visibleLanes,
   ]);
 
@@ -269,100 +338,154 @@ export const GraphActivityHud = ({
     [onOpenMemberProfile]
   );
 
+  const forwardWheelToGraph = useCallback((event: WheelEvent, shell: HTMLDivElement) => {
+    const graphRoot = shell.closest('.team-graph-view');
+    const canvas = graphRoot?.querySelector('canvas');
+    if (!(canvas instanceof HTMLCanvasElement)) {
+      return;
+    }
+    event.preventDefault();
+    canvas.dispatchEvent(
+      new WheelEvent('wheel', {
+        deltaX: event.deltaX,
+        deltaY: event.deltaY,
+        deltaMode: event.deltaMode,
+        clientX: event.clientX,
+        clientY: event.clientY,
+        ctrlKey: event.ctrlKey,
+        shiftKey: event.shiftKey,
+        altKey: event.altKey,
+        metaKey: event.metaKey,
+        bubbles: true,
+        cancelable: true,
+      })
+    );
+  }, []);
+
+  useEffect(() => {
+    if (!enabled) {
+      return;
+    }
+
+    const listeners: Array<{ shell: HTMLDivElement; handler: (event: WheelEvent) => void }> = [];
+
+    for (const lane of visibleLanes) {
+      const shell = shellRefs.current.get(lane.node.id);
+      if (!shell) {
+        continue;
+      }
+      const handler = (event: WheelEvent) => forwardWheelToGraph(event, shell);
+      shell.addEventListener('wheel', handler, { passive: false });
+      listeners.push({ shell, handler });
+    }
+
+    return () => {
+      for (const { shell, handler } of listeners) {
+        shell.removeEventListener('wheel', handler);
+      }
+    };
+  }, [enabled, forwardWheelToGraph, visibleLanes]);
+
   if (!enabled || !teamData || visibleLanes.length === 0) {
     return null;
   }
 
   return (
     <>
-      {visibleLanes.map((lane) => (
-        <div key={lane.node.id}>
-          <svg
-            ref={(element) => {
-              connectorRefs.current.set(lane.node.id, element);
-            }}
-            className="pointer-events-none absolute z-[9] overflow-visible opacity-0"
-          >
-            <path
+      <div
+        ref={worldLayerRef}
+        className="pointer-events-none absolute left-0 top-0 z-[8] origin-top-left"
+      >
+        {visibleLanes.map((lane) => (
+          <div key={lane.node.id}>
+            <svg
               ref={(element) => {
-                connectorPathRefs.current.set(lane.node.id, element);
+                connectorRefs.current.set(lane.node.id, element);
               }}
-              d=""
-              fill="none"
-              stroke="rgba(148, 163, 184, 0.3)"
-              strokeWidth="1.25"
-              strokeLinecap="round"
-              strokeDasharray="3 4"
-            />
-          </svg>
-          <div
-            ref={(element) => {
-              shellRefs.current.set(lane.node.id, element);
-            }}
-            className="pointer-events-auto absolute z-10 w-[296px] origin-top-left opacity-0"
-          >
-            <div className="mb-1 px-1 text-[10px] font-semibold tracking-[0.2em] text-slate-400/70">
-              Activity
-            </div>
-            <div className="space-y-2">
-              {lane.entries.map((entry, index) => {
-                const messageKey = toMessageKey(entry.message);
-                const renderProps = resolveMessageRenderProps(entry.message, messageContext);
-                const timelineItem: TimelineItem = { type: 'message', message: entry.message };
-                const isUnread = !entry.message.read && !readSet.has(messageKey);
+              className="pointer-events-none absolute z-[9] overflow-visible opacity-0"
+            >
+              <path
+                ref={(element) => {
+                  connectorPathRefs.current.set(lane.node.id, element);
+                }}
+                d=""
+                fill="none"
+                stroke="rgba(148, 163, 184, 0.3)"
+                strokeWidth="1.25"
+                strokeLinecap="round"
+                strokeDasharray="3 4"
+              />
+            </svg>
+            <div
+              ref={(element) => {
+                shellRefs.current.set(lane.node.id, element);
+              }}
+              className="pointer-events-auto absolute z-10 origin-top-left opacity-0"
+              style={{ width: `${ACTIVITY_LANE_WIDTH}px`, maxWidth: `${ACTIVITY_LANE_WIDTH}px` }}
+            >
+              <div className="mb-1 px-1 text-[10px] font-semibold tracking-[0.2em] text-slate-400/70">
+                Activity
+              </div>
+              <div className="min-w-0 max-w-full space-y-2 overflow-hidden">
+                {lane.entries.map((entry, index) => {
+                  const messageKey = toMessageKey(entry.message);
+                  const renderProps = resolveMessageRenderProps(entry.message, messageContext);
+                  const timelineItem: TimelineItem = { type: 'message', message: entry.message };
+                  const isUnread = !entry.message.read && !readSet.has(messageKey);
 
-                return (
-                  <div
-                    key={entry.graphItem.id}
-                    className="cursor-pointer"
-                    role="button"
-                    tabIndex={0}
-                    onClick={() => handleMessageClick(timelineItem)}
-                    onKeyDown={(event) => {
-                      if (event.key === 'Enter' || event.key === ' ') {
-                        event.preventDefault();
-                        handleMessageClick(timelineItem);
-                      }
-                    }}
+                  return (
+                    <div
+                      key={entry.graphItem.id}
+                      className="min-w-0 max-w-full cursor-pointer overflow-hidden"
+                      role="button"
+                      tabIndex={0}
+                      onClick={() => handleMessageClick(timelineItem)}
+                      onKeyDown={(event) => {
+                        if (event.key === 'Enter' || event.key === ' ') {
+                          event.preventDefault();
+                          handleMessageClick(timelineItem);
+                        }
+                      }}
+                    >
+                      <ActivityItem
+                        message={entry.message}
+                        teamName={teamName}
+                        compactHeader
+                        collapseMode="managed"
+                        isCollapsed
+                        canToggleCollapse={false}
+                        isUnread={isUnread}
+                        expandItemKey={messageKey}
+                        onExpand={handleExpandItem}
+                        memberRole={renderProps.memberRole}
+                        memberColor={renderProps.memberColor}
+                        recipientColor={renderProps.recipientColor}
+                        memberColorMap={messageContext.colorMap}
+                        localMemberNames={messageContext.localMemberNames}
+                        onMemberNameClick={handleMemberNameClick}
+                        onTaskIdClick={onOpenTaskDetail}
+                        zebraShade={index % 2 === 1}
+                        teamNames={teamNames}
+                        teamColorByName={teamColorByName}
+                      />
+                    </div>
+                  );
+                })}
+
+                {lane.overflowCount > 0 ? (
+                  <button
+                    type="button"
+                    className="w-full rounded-md border border-white/10 bg-[rgba(8,14,28,0.64)] px-3 py-1 text-center text-[11px] font-medium text-slate-300 transition-colors hover:border-white/20 hover:bg-[rgba(12,20,40,0.78)]"
+                    onClick={() => handleOpenOwnerActivity(lane.node)}
                   >
-                    <ActivityItem
-                      message={entry.message}
-                      teamName={teamName}
-                      compactHeader
-                      collapseMode="managed"
-                      isCollapsed
-                      canToggleCollapse={false}
-                      isUnread={isUnread}
-                      expandItemKey={messageKey}
-                      onExpand={handleExpandItem}
-                      memberRole={renderProps.memberRole}
-                      memberColor={renderProps.memberColor}
-                      recipientColor={renderProps.recipientColor}
-                      memberColorMap={messageContext.colorMap}
-                      localMemberNames={messageContext.localMemberNames}
-                      onMemberNameClick={handleMemberNameClick}
-                      onTaskIdClick={onOpenTaskDetail}
-                      zebraShade={index % 2 === 1}
-                      teamNames={teamNames}
-                      teamColorByName={teamColorByName}
-                    />
-                  </div>
-                );
-              })}
-
-              {lane.overflowCount > 0 ? (
-                <button
-                  type="button"
-                  className="w-full rounded-md border border-white/10 bg-[rgba(8,14,28,0.64)] px-3 py-1 text-center text-[11px] font-medium text-slate-300 transition-colors hover:border-white/20 hover:bg-[rgba(12,20,40,0.78)]"
-                  onClick={() => handleOpenOwnerActivity(lane.node)}
-                >
-                  +{lane.overflowCount} more
-                </button>
-              ) : null}
+                    +{lane.overflowCount} more
+                  </button>
+                ) : null}
+              </div>
             </div>
           </div>
-        </div>
-      ))}
+        ))}
+      </div>
 
       <MessageExpandDialog
         expandedItem={expandedItem}

src/features/agent-graph/renderer/ui/TeamGraphOverlay.tsx

@@ -113,29 +113,48 @@ export const TeamGraphOverlay = ({
         onOpenTeamPage={openTeamPage}
         onCreateTask={openCreateTask}
         className="team-graph-view min-w-0 flex-1"
-        renderHud={({
-          getLaunchAnchorScreenPlacement,
-          getActivityAnchorScreenPlacement,
-          getNodeScreenPosition,
-          focusNodeIds,
-        }) => (
-          <>
-            <GraphActivityHud
-              teamName={teamName}
-              nodes={graphData.nodes}
-              getActivityAnchorScreenPlacement={getActivityAnchorScreenPlacement}
-              getNodeScreenPosition={getNodeScreenPosition}
-              focusNodeIds={focusNodeIds}
-              onOpenTaskDetail={onOpenTaskDetail}
-              onOpenMemberProfile={onOpenMemberProfile}
-            />
-            <GraphProvisioningHud
-              teamName={teamName}
-              leadNodeId={leadNodeId}
-              getLaunchAnchorScreenPlacement={getLaunchAnchorScreenPlacement}
-            />
-          </>
-        )}
+        renderHud={(hudProps) => {
+          const extraHudProps = hudProps as typeof hudProps & {
+            getViewportSize?: () => { width: number; height: number };
+            getActivityAnchorWorldPosition?: (
+              ownerNodeId: string
+            ) => { x: number; y: number } | null;
+            getCameraZoom?: () => number;
+            worldToScreen?: (x: number, y: number) => { x: number; y: number };
+            getNodeWorldPosition?: (nodeId: string) => { x: number; y: number } | null;
+          };
+          const {
+            getLaunchAnchorScreenPlacement,
+            getActivityAnchorScreenPlacement,
+            getViewportSize,
+            getNodeScreenPosition,
+            focusNodeIds,
+          } = extraHudProps;
+
+          return (
+            <>
+              <GraphActivityHud
+                teamName={teamName}
+                nodes={graphData.nodes}
+                getActivityAnchorScreenPlacement={getActivityAnchorScreenPlacement}
+                getActivityAnchorWorldPosition={extraHudProps.getActivityAnchorWorldPosition}
+                getCameraZoom={extraHudProps.getCameraZoom}
+                worldToScreen={extraHudProps.worldToScreen}
+                getNodeWorldPosition={extraHudProps.getNodeWorldPosition}
+                getViewportSize={getViewportSize}
+                getNodeScreenPosition={getNodeScreenPosition}
+                focusNodeIds={focusNodeIds}
+                onOpenTaskDetail={onOpenTaskDetail}
+                onOpenMemberProfile={onOpenMemberProfile}
+              />
+              <GraphProvisioningHud
+                teamName={teamName}
+                leadNodeId={leadNodeId}
+                getLaunchAnchorScreenPlacement={getLaunchAnchorScreenPlacement}
+              />
+            </>
+          );
+        }}
         renderEdgeOverlay={({ edge, sourceNode, targetNode, onClose: closeEdge, onSelectNode }) => (
           <GraphBlockingEdgePopover
             teamName={teamName}

src/features/agent-graph/renderer/ui/TeamGraphTab.tsx

@@ -145,31 +145,50 @@ export const TeamGraphTab = ({
           onRequestFullscreen={() => setFullscreen(true)}
           onOpenTeamPage={openTeamPage}
           onCreateTask={openCreateTask}
-          renderHud={({
-            getLaunchAnchorScreenPlacement,
-            getActivityAnchorScreenPlacement,
-            getNodeScreenPosition,
-            focusNodeIds,
-          }) => (
-            <>
-              <GraphActivityHud
-                teamName={teamName}
-                nodes={graphData.nodes}
-                getActivityAnchorScreenPlacement={getActivityAnchorScreenPlacement}
-                getNodeScreenPosition={getNodeScreenPosition}
-                focusNodeIds={focusNodeIds}
-                enabled={isActive}
-                onOpenTaskDetail={dispatchOpenTask}
-                onOpenMemberProfile={dispatchOpenProfile}
-              />
-              <GraphProvisioningHud
-                teamName={teamName}
-                leadNodeId={leadNodeId}
-                getLaunchAnchorScreenPlacement={getLaunchAnchorScreenPlacement}
-                enabled={isActive}
-              />
-            </>
-          )}
+          renderHud={(hudProps) => {
+            const extraHudProps = hudProps as typeof hudProps & {
+              getViewportSize?: () => { width: number; height: number };
+              getActivityAnchorWorldPosition?: (
+                ownerNodeId: string
+              ) => { x: number; y: number } | null;
+              getCameraZoom?: () => number;
+              worldToScreen?: (x: number, y: number) => { x: number; y: number };
+              getNodeWorldPosition?: (nodeId: string) => { x: number; y: number } | null;
+            };
+            const {
+              getLaunchAnchorScreenPlacement,
+              getActivityAnchorScreenPlacement,
+              getViewportSize,
+              getNodeScreenPosition,
+              focusNodeIds,
+            } = extraHudProps;
+
+            return (
+              <>
+                <GraphActivityHud
+                  teamName={teamName}
+                  nodes={graphData.nodes}
+                  getActivityAnchorScreenPlacement={getActivityAnchorScreenPlacement}
+                  getActivityAnchorWorldPosition={extraHudProps.getActivityAnchorWorldPosition}
+                  getCameraZoom={extraHudProps.getCameraZoom}
+                  worldToScreen={extraHudProps.worldToScreen}
+                  getNodeWorldPosition={extraHudProps.getNodeWorldPosition}
+                  getViewportSize={getViewportSize}
+                  getNodeScreenPosition={getNodeScreenPosition}
+                  focusNodeIds={focusNodeIds}
+                  enabled={isActive}
+                  onOpenTaskDetail={dispatchOpenTask}
+                  onOpenMemberProfile={dispatchOpenProfile}
+                />
+                <GraphProvisioningHud
+                  teamName={teamName}
+                  leadNodeId={leadNodeId}
+                  getLaunchAnchorScreenPlacement={getLaunchAnchorScreenPlacement}
+                  enabled={isActive}
+                />
+              </>
+            );
+          }}
           renderEdgeOverlay={({ edge, sourceNode, targetNode, onClose, onSelectNode }) => (
             <GraphBlockingEdgePopover
               teamName={teamName}

src/renderer/components/dashboard/TmuxStatusBanner.tsx

@@ -310,8 +310,10 @@ export const TmuxStatusBanner = (): React.JSX.Element | null => {
               className="mt-1 text-xs leading-relaxed"
               style={{ color: 'var(--color-text-muted)' }}
             >
-              Persistent team agents are more reliable on the process/tmux path. Without tmux, the
-              app falls back to the heavier in-process path. {getPrimaryDetail(state.status)}
+              You can keep using the app without tmux, but installing it is recommended for the best
+              experience. It enables the more reliable process/tmux path with persistent teammates,
+              cleaner restarts, and better recovery for long-running tasks.{' '}
+              {getPrimaryDetail(state.status)}
             </p>
             {state.status.error && (
               <p className="mt-1 text-xs" style={{ color: '#fbbf24' }}>

test/renderer/features/agent-graph/activityLane.test.ts

@@ -6,6 +6,8 @@ import {
   getActivityAnchorScreenPlacement,
   getActivityAnchorTarget,
   getActivityLaneBounds,
+  packActivityLaneScreenRects,
+  packActivityLaneWorldRects,
   getVisibleActivityWindow,
 } from '../../../../packages/agent-graph/src/layout/activityLane';
 
@@ -28,7 +30,7 @@ describe('activity lane helpers', () => {
     expect(window.overflowCount).toBe(3);
   });
 
-  it('places the lead lane to the left and member lane to the right', () => {
+  it('places activity lanes above their owners', () => {
     const leadTarget = getActivityAnchorTarget({ nodeX: 100, nodeY: 80, nodeKind: 'lead' });
     const memberTarget = getActivityAnchorTarget({ nodeX: 100, nodeY: 80, nodeKind: 'member' });
     const memberLeftOfLeadTarget = getActivityAnchorTarget({
@@ -38,13 +40,21 @@ describe('activity lane helpers', () => {
       leadX: 100,
     });
 
-    expect(leadTarget.x).toBeLessThan(100);
-    expect(memberTarget.x).toBeGreaterThan(100);
-    expect(memberLeftOfLeadTarget.x).toBeLessThan(80);
+    expect(leadTarget.x).toBe(100 - ACTIVITY_LANE.width / 2);
+    expect(memberTarget.x).toBe(100 - ACTIVITY_LANE.width / 2);
+    expect(memberLeftOfLeadTarget.x).toBe(80 - ACTIVITY_LANE.width / 2);
     expect(leadTarget.y).toBeLessThan(80);
     expect(memberTarget.y).toBeLessThan(80);
   });
 
+  it('keeps the activity lane fully above the owner node', () => {
+    const ownerY = 120;
+    const memberTarget = getActivityAnchorTarget({ nodeX: 100, nodeY: ownerY, nodeKind: 'member' });
+    const bounds = getActivityLaneBounds(memberTarget.x, memberTarget.y);
+
+    expect(bounds.bottom).toBeLessThan(ownerY);
+  });
+
   it('hits visible activity pills in the owner lane', () => {
     const node: GraphNode = {
       id: 'member:team:alice',
@@ -80,8 +90,8 @@ describe('activity lane helpers', () => {
       viewportHeight: 600,
     });
 
-    expect(placement.x).toBe(40 - ACTIVITY_LANE.width / 2);
-    expect(placement.y).toBe(60 - (ACTIVITY_LANE.headerHeight + ACTIVITY_LANE.maxVisibleItems * ACTIVITY_LANE.rowHeight + ACTIVITY_LANE.overflowHeight) / 2);
+    expect(placement.x).toBe(40);
+    expect(placement.y).toBe(60);
     expect(placement.visible).toBe(true);
   });
 
@@ -99,4 +109,40 @@ describe('activity lane helpers', () => {
     expect(placement.x).toBeLessThan(0);
     expect(placement.visible).toBe(true);
   });
+
+  it('packs overlapping lanes on the same side without moving independent lanes', () => {
+    const placements = packActivityLaneScreenRects([
+      { id: 'lane-a', side: 'right', x: 400, y: 100, width: 296, height: 220 },
+      { id: 'lane-b', side: 'right', x: 420, y: 150, width: 296, height: 220 },
+      { id: 'lane-c', side: 'left', x: 120, y: 150, width: 296, height: 220 },
+    ]);
+
+    expect(placements.get('lane-a')).toEqual({ x: 400, y: 100 });
+    expect(placements.get('lane-b')).toEqual({ x: 420, y: 328 });
+    expect(placements.get('lane-c')).toEqual({ x: 120, y: 150 });
+  });
+
+  it('packs world lanes globally even when they came from different legacy sides', () => {
+    const placements = packActivityLaneWorldRects([
+      { id: 'lane-a', side: 'left', x: 100, y: 100, width: 296, height: 220 },
+      { id: 'lane-b', side: 'right', x: 120, y: 140, width: 296, height: 220 },
+    ]);
+
+    expect(placements.get('lane-a')).toEqual({ x: 100, y: 100 });
+    expect(placements.get('lane-b')).toEqual({ x: 120, y: 328 });
+  });
+
+  it('tracks graph zoom so activity lanes behave like world elements', () => {
+    const placement = getActivityAnchorScreenPlacement({
+      anchorX: 40,
+      anchorY: 60,
+      cameraX: 0,
+      cameraY: 0,
+      zoom: 4,
+      viewportWidth: 800,
+      viewportHeight: 600,
+    });
+
+    expect(placement.scale).toBe(4);
+  });
 });

test/renderer/features/agent-graph/kanbanLayout.test.ts

@@ -6,6 +6,7 @@ import {
   getOwnerKanbanBaseX,
 } from '../../../../packages/agent-graph/src/layout/kanbanLayout';
 import {
+  ACTIVITY_LANE,
   getActivityAnchorTarget,
   getActivityLaneBounds,
 } from '../../../../packages/agent-graph/src/layout/activityLane';
@@ -78,7 +79,7 @@ describe('kanban layout activity-lane avoidance', () => {
     expect(baseX).toBe(-220);
   });
 
-  it('keeps member task pills out of the reserved right-side activity lane', () => {
+  it('keeps member task pills below the reserved activity lane', () => {
     const lead = createLeadNode(0, 0);
     const member = createMemberNode('member:jack', 220, 40, 'jack');
     const tasks = [
@@ -96,12 +97,12 @@ describe('kanban layout activity-lane avoidance', () => {
       leadX: lead.x ?? null,
     });
     const laneBounds = getActivityLaneBounds(anchor.x, anchor.y);
-    const rightmostTaskEdge = Math.max(...tasks.map((task) => (task.x ?? 0) + TASK_PILL.width / 2));
+    const topmostTaskEdge = Math.min(...tasks.map((task) => (task.y ?? 0) - TASK_PILL.height / 2));
 
-    expect(rightmostTaskEdge).toBeLessThan(laneBounds.left);
+    expect(topmostTaskEdge).toBeGreaterThan(laneBounds.bottom);
   });
 
-  it('keeps member task pills out of the reserved left-side activity lane', () => {
+  it('keeps left-side member task pills below the reserved activity lane', () => {
     const lead = createLeadNode(0, 0);
     const member = createMemberNode('member:alice', -220, 40, 'alice');
     const tasks = [
@@ -119,8 +120,33 @@ describe('kanban layout activity-lane avoidance', () => {
       leadX: lead.x ?? null,
     });
     const laneBounds = getActivityLaneBounds(anchor.x, anchor.y);
-    const leftmostTaskEdge = Math.min(...tasks.map((task) => (task.x ?? 0) - TASK_PILL.width / 2));
+    const topmostTaskEdge = Math.min(...tasks.map((task) => (task.y ?? 0) - TASK_PILL.height / 2));
 
-    expect(leftmostTaskEdge).toBeGreaterThan(laneBounds.right);
+    expect(topmostTaskEdge).toBeGreaterThan(laneBounds.bottom);
+  });
+
+  it('pushes task zones below overlapping activity lanes from nearby owners', () => {
+    const lead = createLeadNode(0, 0);
+    const member = createMemberNode('member:alice', 120, 120, 'alice');
+    const tasks = [
+      createTaskNode('task:todo', member.id, 'pending'),
+      createTaskNode('task:wip', member.id, 'in_progress'),
+    ];
+
+    const nearbyLane = {
+      ownerId: 'member:tom',
+      left: 20,
+      top: -120,
+      right: 20 + ACTIVITY_LANE.width,
+      bottom: 180,
+    };
+
+    KanbanLayoutEngine.layout([lead, member, ...tasks], {
+      activityLaneBounds: [nearbyLane],
+    });
+
+    const topmostTaskEdge = Math.min(...tasks.map((task) => (task.y ?? 0) - TASK_PILL.height / 2));
+
+    expect(topmostTaskEdge).toBeGreaterThan(nearbyLane.bottom);
   });
 });