Merge branch 'main' into cw/unified-event-flow-conflict-1772795597661

# Conflicts:
#	apps/web/src/components/review/ReviewTab.tsx
#	apps/web/src/routes/initiatives/$id.tsx

apps/web/src/components/TaskRow.tsx

@@ -12,7 +12,7 @@ export interface SerializedTask {
   parentTaskId: string | null;
   name: string;
   description: string | null;
-  type: "auto" | "checkpoint:human-verify" | "checkpoint:decision" | "checkpoint:human-action";
+  type: "auto";
   category: string;
   priority: "low" | "medium" | "high";
   status: "pending" | "in_progress" | "completed" | "blocked";

apps/web/src/components/execution/PlanSection.tsx

@@ -27,6 +27,7 @@ export function PlanSection({
         (a) =>
           a.mode === "plan" &&
           a.initiativeId === initiativeId &&
+          !a.userDismissedAt &&
           ["running", "waiting_for_input", "idle"].includes(a.status),
       )
       .sort(

apps/web/src/components/execution/TaskSlideOver.tsx

@@ -1,6 +1,6 @@
 import { useCallback, useEffect, useRef, useMemo } from "react";
 import { motion, AnimatePresence } from "motion/react";
-import { X, Trash2, MessageCircle } from "lucide-react";
+import { X, Trash2, MessageCircle, RotateCw } from "lucide-react";
 import type { ChatTarget } from "@/components/chat/ChatSlideOver";
 import { Badge } from "@/components/ui/badge";
 import { Button } from "@/components/ui/button";
@@ -20,6 +20,7 @@ interface TaskSlideOverProps {
 export function TaskSlideOver({ onOpenChat }: TaskSlideOverProps) {
   const { selectedEntry, setSelectedTaskId } = useExecutionContext();
   const queueTaskMutation = trpc.queueTask.useMutation();
+  const retryBlockedTaskMutation = trpc.retryBlockedTask.useMutation();
   const deleteTaskMutation = trpc.deleteTask.useMutation();
   const updateTaskMutation = trpc.updateTask.useMutation();
 
@@ -229,17 +230,32 @@ export function TaskSlideOver({ onOpenChat }: TaskSlideOverProps) {
 
             {/* Footer */}
             <div className="flex items-center gap-2 border-t border-border px-5 py-3">
-              <Button
-                variant="outline"
-                size="sm"
-                disabled={!canQueue}
-                onClick={() => {
-                  queueTaskMutation.mutate({ taskId: task.id });
-                  close();
-                }}
-              >
-                Queue Task
-              </Button>
+              {task.status === "blocked" ? (
+                <Button
+                  variant="outline"
+                  size="sm"
+                  className="gap-1.5"
+                  onClick={() => {
+                    retryBlockedTaskMutation.mutate({ taskId: task.id });
+                    close();
+                  }}
+                >
+                  <RotateCw className="h-3.5 w-3.5" />
+                  Retry
+                </Button>
+              ) : (
+                <Button
+                  variant="outline"
+                  size="sm"
+                  disabled={!canQueue}
+                  onClick={() => {
+                    queueTaskMutation.mutate({ taskId: task.id });
+                    close();
+                  }}
+                >
+                  Queue Task
+                </Button>
+              )}
               <Button
                 variant="outline"
                 size="sm"

apps/web/src/components/review/CommentForm.tsx

@@ -7,14 +7,15 @@ interface CommentFormProps {
   onCancel: () => void;
   placeholder?: string;
   submitLabel?: string;
+  initialValue?: string;
 }
 
 export const CommentForm = forwardRef<HTMLTextAreaElement, CommentFormProps>(
   function CommentForm(
-    { onSubmit, onCancel, placeholder = "Write a comment...", submitLabel = "Comment" },
+    { onSubmit, onCancel, placeholder = "Write a comment...", submitLabel = "Comment", initialValue = "" },
     ref
   ) {
-    const [body, setBody] = useState("");
+    const [body, setBody] = useState(initialValue);
 
     const handleSubmit = useCallback(() => {
       const trimmed = body.trim();

apps/web/src/components/review/CommentThread.tsx

@@ -1,71 +1,214 @@
-import { Check, RotateCcw } from "lucide-react";
+import { useState, useRef, useEffect } from "react";
+import { Check, RotateCcw, Reply, Pencil } from "lucide-react";
 import { Button } from "@/components/ui/button";
+import { CommentForm } from "./CommentForm";
 import type { ReviewComment } from "./types";
 
 interface CommentThreadProps {
   comments: ReviewComment[];
   onResolve: (commentId: string) => void;
   onUnresolve: (commentId: string) => void;
+  onReply?: (parentCommentId: string, body: string) => void;
+  onEdit?: (commentId: string, body: string) => void;
 }
 
-export function CommentThread({ comments, onResolve, onUnresolve }: CommentThreadProps) {
+export function CommentThread({ comments, onResolve, onUnresolve, onReply, onEdit }: CommentThreadProps) {
+  // Group: root comments (no parentCommentId) and their replies
+  const rootComments = comments.filter((c) => !c.parentCommentId);
+  const repliesByParent = new Map<string, ReviewComment[]>();
+  for (const c of comments) {
+    if (c.parentCommentId) {
+      const arr = repliesByParent.get(c.parentCommentId) ?? [];
+      arr.push(c);
+      repliesByParent.set(c.parentCommentId, arr);
+    }
+  }
+
   return (
     <div className="space-y-2">
-      {comments.map((comment) => (
-        <div
+      {rootComments.map((comment) => (
+        <RootComment
           key={comment.id}
-          className={`rounded border p-2.5 text-xs space-y-1.5 ${
-            comment.resolved
-              ? "border-status-success-border bg-status-success-bg/50"
-              : "border-border bg-card"
-          }`}
-        >
-          <div className="flex items-center justify-between gap-2">
-            <div className="flex items-center gap-1.5">
-              <span className="font-semibold text-foreground">{comment.author}</span>
-              <span className="text-muted-foreground">
-                {formatTime(comment.createdAt)}
-              </span>
-              {comment.resolved && (
-                <span className="flex items-center gap-0.5 text-status-success-fg text-[10px] font-medium">
-                  <Check className="h-3 w-3" />
-                  Resolved
-                </span>
-              )}
-            </div>
-            <div>
-              {comment.resolved ? (
-                <Button
-                  variant="ghost"
-                  size="sm"
-                  className="h-6 px-1.5 text-[10px]"
-                  onClick={() => onUnresolve(comment.id)}
-                >
-                  <RotateCcw className="h-3 w-3 mr-0.5" />
-                  Reopen
-                </Button>
-              ) : (
-                <Button
-                  variant="ghost"
-                  size="sm"
-                  className="h-6 px-1.5 text-[10px]"
-                  onClick={() => onResolve(comment.id)}
-                >
-                  <Check className="h-3 w-3 mr-0.5" />
-                  Resolve
-                </Button>
-              )}
-            </div>
-          </div>
-          <p className="text-foreground/90 leading-relaxed whitespace-pre-wrap">
-            {comment.body}
-          </p>
-        </div>
+          comment={comment}
+          replies={repliesByParent.get(comment.id) ?? []}
+          onResolve={onResolve}
+          onUnresolve={onUnresolve}
+          onReply={onReply}
+          onEdit={onEdit}
+        />
       ))}
     </div>
   );
 }
 
+function RootComment({
+  comment,
+  replies,
+  onResolve,
+  onUnresolve,
+  onReply,
+  onEdit,
+}: {
+  comment: ReviewComment;
+  replies: ReviewComment[];
+  onResolve: (id: string) => void;
+  onUnresolve: (id: string) => void;
+  onReply?: (parentCommentId: string, body: string) => void;
+  onEdit?: (commentId: string, body: string) => void;
+}) {
+  const [isReplying, setIsReplying] = useState(false);
+  const [editingId, setEditingId] = useState<string | null>(null);
+  const replyRef = useRef<HTMLTextAreaElement>(null);
+  const editRef = useRef<HTMLTextAreaElement>(null);
+
+  useEffect(() => {
+    if (isReplying) replyRef.current?.focus();
+  }, [isReplying]);
+
+  useEffect(() => {
+    if (editingId) editRef.current?.focus();
+  }, [editingId]);
+
+  const isEditingRoot = editingId === comment.id;
+
+  return (
+    <div className={`rounded border ${comment.resolved ? "border-status-success-border bg-status-success-bg/50" : "border-border bg-card"}`}>
+      {/* Root comment */}
+      <div className="p-2.5 text-xs space-y-1.5">
+        <div className="flex items-center justify-between gap-2">
+          <div className="flex items-center gap-1.5">
+            <span className="font-semibold text-foreground">{comment.author}</span>
+            <span className="text-muted-foreground">{formatTime(comment.createdAt)}</span>
+            {comment.resolved && (
+              <span className="flex items-center gap-0.5 text-status-success-fg text-[10px] font-medium">
+                <Check className="h-3 w-3" />
+                Resolved
+              </span>
+            )}
+          </div>
+          <div className="flex items-center gap-0.5">
+            {onEdit && comment.author !== "agent" && !comment.resolved && (
+              <Button
+                variant="ghost"
+                size="sm"
+                className="h-6 px-1.5 text-[10px]"
+                onClick={() => setEditingId(isEditingRoot ? null : comment.id)}
+              >
+                <Pencil className="h-3 w-3 mr-0.5" />
+                Edit
+              </Button>
+            )}
+            {onReply && !comment.resolved && (
+              <Button
+                variant="ghost"
+                size="sm"
+                className="h-6 px-1.5 text-[10px]"
+                onClick={() => setIsReplying(!isReplying)}
+              >
+                <Reply className="h-3 w-3 mr-0.5" />
+                Reply
+              </Button>
+            )}
+            {comment.resolved ? (
+              <Button variant="ghost" size="sm" className="h-6 px-1.5 text-[10px]" onClick={() => onUnresolve(comment.id)}>
+                <RotateCcw className="h-3 w-3 mr-0.5" />
+                Reopen
+              </Button>
+            ) : (
+              <Button variant="ghost" size="sm" className="h-6 px-1.5 text-[10px]" onClick={() => onResolve(comment.id)}>
+                <Check className="h-3 w-3 mr-0.5" />
+                Resolve
+              </Button>
+            )}
+          </div>
+        </div>
+        {isEditingRoot ? (
+          <CommentForm
+            ref={editRef}
+            initialValue={comment.body}
+            onSubmit={(body) => {
+              onEdit!(comment.id, body);
+              setEditingId(null);
+            }}
+            onCancel={() => setEditingId(null)}
+            placeholder="Edit comment..."
+            submitLabel="Save"
+          />
+        ) : (
+          <p className="text-foreground/90 leading-relaxed whitespace-pre-wrap">{comment.body}</p>
+        )}
+      </div>
+
+      {/* Replies */}
+      {replies.length > 0 && (
+        <div className="border-t border-border/50">
+          {replies.map((reply) => (
+            <div
+              key={reply.id}
+              className={`px-2.5 py-2 text-xs border-l-2 ml-3 space-y-1 ${
+                reply.author === "agent"
+                  ? "border-l-primary bg-primary/5"
+                  : "border-l-muted-foreground/30"
+              }`}
+            >
+              <div className="flex items-center justify-between gap-1.5">
+                <div className="flex items-center gap-1.5">
+                  <span className={`font-semibold ${reply.author === "agent" ? "text-primary" : "text-foreground"}`}>
+                    {reply.author}
+                  </span>
+                  <span className="text-muted-foreground">{formatTime(reply.createdAt)}</span>
+                </div>
+                {onEdit && reply.author !== "agent" && !comment.resolved && editingId !== reply.id && (
+                  <Button
+                    variant="ghost"
+                    size="sm"
+                    className="h-5 px-1 text-[10px]"
+                    onClick={() => setEditingId(reply.id)}
+                  >
+                    <Pencil className="h-2.5 w-2.5 mr-0.5" />
+                    Edit
+                  </Button>
+                )}
+              </div>
+              {editingId === reply.id ? (
+                <CommentForm
+                  ref={editRef}
+                  initialValue={reply.body}
+                  onSubmit={(body) => {
+                    onEdit!(reply.id, body);
+                    setEditingId(null);
+                  }}
+                  onCancel={() => setEditingId(null)}
+                  placeholder="Edit reply..."
+                  submitLabel="Save"
+                />
+              ) : (
+                <p className="text-foreground/90 leading-relaxed whitespace-pre-wrap">{reply.body}</p>
+              )}
+            </div>
+          ))}
+        </div>
+      )}
+
+      {/* Reply form */}
+      {isReplying && onReply && (
+        <div className="border-t border-border/50 p-2.5">
+          <CommentForm
+            ref={replyRef}
+            onSubmit={(body) => {
+              onReply(comment.id, body);
+              setIsReplying(false);
+            }}
+            onCancel={() => setIsReplying(false)}
+            placeholder="Write a reply..."
+            submitLabel="Reply"
+          />
+        </div>
+      )}
+    </div>
+  );
+}
+
 function formatTime(iso: string): string {
   const d = new Date(iso);
   return d.toLocaleTimeString(undefined, { hour: "2-digit", minute: "2-digit" });

apps/web/src/components/review/ConflictResolutionPanel.tsx

@@ -0,0 +1,182 @@
+import { Loader2, AlertCircle, GitMerge, CheckCircle2, ChevronDown, ChevronRight, Terminal } from 'lucide-react';
+import { useState } from 'react';
+import { Button } from '@/components/ui/button';
+import { QuestionForm } from '@/components/QuestionForm';
+import { useConflictAgent } from '@/hooks/useConflictAgent';
+
+interface ConflictResolutionPanelProps {
+  initiativeId: string;
+  conflicts: string[];
+  onResolved: () => void;
+}
+
+export function ConflictResolutionPanel({ initiativeId, conflicts, onResolved }: ConflictResolutionPanelProps) {
+  const { state, agent, questions, spawn, resume, stop, dismiss } = useConflictAgent(initiativeId);
+  const [showManual, setShowManual] = useState(false);
+
+  if (state === 'none') {
+    return (
+      <div className="mx-4 mt-3 rounded-lg border border-status-error-border bg-status-error-bg/50 p-4">
+        <div className="flex items-start gap-3">
+          <AlertCircle className="h-4 w-4 text-status-error-fg mt-0.5 shrink-0" />
+          <div className="flex-1 min-w-0">
+            <h3 className="text-sm font-semibold text-foreground mb-1">
+              {conflicts.length} merge conflict{conflicts.length !== 1 ? 's' : ''} detected
+            </h3>
+            <ul className="text-xs text-muted-foreground font-mono space-y-0.5 mb-3">
+              {conflicts.map((file) => (
+                <li key={file}>{file}</li>
+              ))}
+            </ul>
+            <div className="flex items-center gap-2">
+              <Button
+                size="sm"
+                onClick={() => spawn.mutate({ initiativeId })}
+                disabled={spawn.isPending}
+                className="h-7 text-xs"
+              >
+                {spawn.isPending ? (
+                  <Loader2 className="h-3 w-3 animate-spin" />
+                ) : (
+                  <GitMerge className="h-3 w-3" />
+                )}
+                Resolve with Agent
+              </Button>
+              <Button
+                variant="ghost"
+                size="sm"
+                onClick={() => setShowManual(!showManual)}
+                className="h-7 text-xs text-muted-foreground"
+              >
+                {showManual ? <ChevronDown className="h-3 w-3" /> : <ChevronRight className="h-3 w-3" />}
+                Manual Resolution
+              </Button>
+            </div>
+            {spawn.error && (
+              <p className="mt-2 text-xs text-status-error-fg">{spawn.error.message}</p>
+            )}
+            {showManual && (
+              <div className="mt-3 rounded border border-border bg-card p-3">
+                <p className="text-xs text-muted-foreground mb-2">
+                  In your project clone, run:
+                </p>
+                <pre className="text-xs font-mono bg-terminal text-terminal-fg rounded p-2 overflow-x-auto">
+{`git checkout <initiative-branch>
+git merge <target-branch>
+# Resolve conflicts in each file
+git add <resolved-files>
+git commit --no-edit`}
+                </pre>
+              </div>
+            )}
+          </div>
+        </div>
+      </div>
+    );
+  }
+
+  if (state === 'running') {
+    return (
+      <div className="mx-4 mt-3 rounded-lg border border-border bg-card px-4 py-3">
+        <div className="flex items-center justify-between">
+          <div className="flex items-center gap-2">
+            <Loader2 className="h-3.5 w-3.5 animate-spin text-primary" />
+            <span className="text-sm text-muted-foreground">Resolving merge conflicts...</span>
+          </div>
+          <Button
+            variant="ghost"
+            size="sm"
+            onClick={() => stop.mutate()}
+            disabled={stop.isPending}
+            className="h-7 text-xs"
+          >
+            Stop
+          </Button>
+        </div>
+      </div>
+    );
+  }
+
+  if (state === 'waiting' && questions) {
+    return (
+      <div className="mx-4 mt-3 rounded-lg border border-border bg-card p-4">
+        <div className="flex items-center gap-2 mb-3">
+          <Terminal className="h-3.5 w-3.5 text-primary" />
+          <h3 className="text-sm font-semibold">Agent needs input</h3>
+        </div>
+        <QuestionForm
+          questions={questions.questions}
+          onSubmit={(answers) => resume.mutate(answers)}
+          onCancel={() => {}}
+          onDismiss={() => stop.mutate()}
+          isSubmitting={resume.isPending}
+          isDismissing={stop.isPending}
+        />
+      </div>
+    );
+  }
+
+  if (state === 'completed') {
+    return (
+      <div className="mx-4 mt-3 rounded-lg border border-status-success-border bg-status-success-bg/50 px-4 py-3">
+        <div className="flex items-center justify-between">
+          <div className="flex items-center gap-2">
+            <CheckCircle2 className="h-3.5 w-3.5 text-status-success-fg" />
+            <span className="text-sm text-status-success-fg">Conflicts resolved</span>
+          </div>
+          <div className="flex items-center gap-2">
+            <Button
+              variant="outline"
+              size="sm"
+              onClick={() => {
+                dismiss();
+                onResolved();
+              }}
+              className="h-7 text-xs"
+            >
+              Re-check Mergeability
+            </Button>
+          </div>
+        </div>
+      </div>
+    );
+  }
+
+  if (state === 'crashed') {
+    return (
+      <div className="mx-4 mt-3 rounded-lg border border-status-error-border bg-status-error-bg/50 px-4 py-3">
+        <div className="flex items-center justify-between">
+          <div className="flex items-center gap-2">
+            <AlertCircle className="h-3.5 w-3.5 text-status-error-fg" />
+            <span className="text-sm text-status-error-fg">Conflict resolution agent crashed</span>
+          </div>
+          <div className="flex items-center gap-2">
+            <Button
+              variant="outline"
+              size="sm"
+              onClick={() => {
+                dismiss();
+              }}
+              className="h-7 text-xs"
+            >
+              Dismiss
+            </Button>
+            <Button
+              size="sm"
+              onClick={() => {
+                dismiss();
+                spawn.mutate({ initiativeId });
+              }}
+              disabled={spawn.isPending}
+              className="h-7 text-xs"
+            >
+              Retry
+            </Button>
+          </div>
+        </div>
+      </div>
+    );
+  }
+
+  return null;
+}

apps/web/src/components/review/DiffViewer.tsx

@@ -12,6 +12,8 @@ interface DiffViewerProps {
   ) => void;
   onResolveComment: (commentId: string) => void;
   onUnresolveComment: (commentId: string) => void;
+  onReplyComment?: (parentCommentId: string, body: string) => void;
+  onEditComment?: (commentId: string, body: string) => void;
   viewedFiles?: Set<string>;
   onToggleViewed?: (filePath: string) => void;
   onRegisterRef?: (filePath: string, el: HTMLDivElement | null) => void;
@@ -23,6 +25,8 @@ export function DiffViewer({
   onAddComment,
   onResolveComment,
   onUnresolveComment,
+  onReplyComment,
+  onEditComment,
   viewedFiles,
   onToggleViewed,
   onRegisterRef,
@@ -37,6 +41,8 @@ export function DiffViewer({
             onAddComment={onAddComment}
             onResolveComment={onResolveComment}
             onUnresolveComment={onUnresolveComment}
+            onReplyComment={onReplyComment}
+            onEditComment={onEditComment}
             isViewed={viewedFiles?.has(file.newPath) ?? false}
             onToggleViewed={() => onToggleViewed?.(file.newPath)}
           />

apps/web/src/components/review/FileCard.tsx

@@ -52,6 +52,8 @@ interface FileCardProps {
   ) => void;
   onResolveComment: (commentId: string) => void;
   onUnresolveComment: (commentId: string) => void;
+  onReplyComment?: (parentCommentId: string, body: string) => void;
+  onEditComment?: (commentId: string, body: string) => void;
   isViewed?: boolean;
   onToggleViewed?: () => void;
 }
@@ -62,6 +64,8 @@ export function FileCard({
   onAddComment,
   onResolveComment,
   onUnresolveComment,
+  onReplyComment,
+  onEditComment,
   isViewed = false,
   onToggleViewed = () => {},
 }: FileCardProps) {
@@ -77,10 +81,11 @@ export function FileCard({
   const tokenMap = useHighlightedFile(file.newPath, allLines);
 
   return (
-    <div className="rounded-lg border border-border overflow-hidden">
+    <div className="rounded-lg border border-border overflow-clip">
       {/* File header — sticky so it stays visible when scrolling */}
       <button
-        className={`sticky top-0 z-10 flex w-full items-center gap-2 px-3 py-2 bg-muted hover:bg-muted/90 text-left text-sm font-mono transition-colors ${leftBorderClass[file.changeType]}`}
+        className={`sticky z-10 flex w-full items-center gap-2 px-3 py-2 bg-muted hover:bg-muted/90 text-left text-sm font-mono transition-colors ${leftBorderClass[file.changeType]}`}
+        style={{ top: 'var(--review-header-h, 0px)' }}
         onClick={() => setExpanded(!expanded)}
       >
         {expanded ? (
@@ -157,6 +162,8 @@ export function FileCard({
                   onAddComment={onAddComment}
                   onResolveComment={onResolveComment}
                   onUnresolveComment={onUnresolveComment}
+                  onReplyComment={onReplyComment}
+                  onEditComment={onEditComment}
                   tokenMap={tokenMap}
                 />
               ))}

apps/web/src/components/review/HunkRows.tsx

@@ -15,6 +15,8 @@ interface HunkRowsProps {
   ) => void;
   onResolveComment: (commentId: string) => void;
   onUnresolveComment: (commentId: string) => void;
+  onReplyComment?: (parentCommentId: string, body: string) => void;
+  onEditComment?: (commentId: string, body: string) => void;
   tokenMap?: LineTokenMap | null;
 }
 
@@ -25,6 +27,8 @@ export function HunkRows({
   onAddComment,
   onResolveComment,
   onUnresolveComment,
+  onReplyComment,
+  onEditComment,
   tokenMap,
 }: HunkRowsProps) {
   const [commentingLine, setCommentingLine] = useState<{
@@ -98,6 +102,8 @@ export function HunkRows({
             onSubmitComment={handleSubmitComment}
             onResolveComment={onResolveComment}
             onUnresolveComment={onUnresolveComment}
+            onReplyComment={onReplyComment}
+            onEditComment={onEditComment}
             tokens={
               line.newLineNumber !== null
                 ? tokenMap?.get(line.newLineNumber) ?? undefined

apps/web/src/components/review/InitiativeReview.tsx

@@ -1,11 +1,14 @@
-import { useCallback, useMemo, useRef, useState } from "react";
+import { useCallback, useEffect, useMemo, useRef, useState } from "react";
 import { toast } from "sonner";
-import { Loader2, GitBranch, ArrowRight, FileCode, Plus, Minus, Upload, GitMerge } from "lucide-react";
+import { Loader2, GitBranch, ArrowRight, FileCode, Plus, Minus, Upload, GitMerge, AlertTriangle, CheckCircle2 } from "lucide-react";
 import { Button } from "@/components/ui/button";
+import { Badge } from "@/components/ui/badge";
 import { trpc } from "@/lib/trpc";
 import { parseUnifiedDiff } from "./parse-diff";
 import { DiffViewer } from "./DiffViewer";
 import { ReviewSidebar } from "./ReviewSidebar";
+import { PreviewControls } from "./PreviewControls";
+import { ConflictResolutionPanel } from "./ConflictResolutionPanel";
 
 interface InitiativeReviewProps {
   initiativeId: string;
@@ -48,6 +51,61 @@ export function InitiativeReview({ initiativeId, onCompleted }: InitiativeReview
     { enabled: !!selectedCommit },
   );
 
+  // Mergeability check
+  const mergeabilityQuery = trpc.checkInitiativeMergeability.useQuery(
+    { initiativeId },
+    { refetchInterval: 30_000 },
+  );
+  const mergeability = mergeabilityQuery.data ?? null;
+
+  // Auto-refresh mergeability when a conflict agent completes
+  const conflictAgentQuery = trpc.getActiveConflictAgent.useQuery({ initiativeId });
+  const conflictAgentStatus = conflictAgentQuery.data?.status;
+  const prevConflictStatusRef = useRef(conflictAgentStatus);
+  useEffect(() => {
+    const prev = prevConflictStatusRef.current;
+    prevConflictStatusRef.current = conflictAgentStatus;
+    // When agent transitions from running/waiting to idle (completed)
+    if (prev && ['running', 'waiting_for_input'].includes(prev) && conflictAgentStatus === 'idle') {
+      void mergeabilityQuery.refetch();
+      void diffQuery.refetch();
+      void commitsQuery.refetch();
+    }
+  }, [conflictAgentStatus, mergeabilityQuery, diffQuery, commitsQuery]);
+
+  // Preview state
+  const projectsQuery = trpc.getInitiativeProjects.useQuery({ initiativeId });
+  const firstProjectId = projectsQuery.data?.[0]?.id ?? null;
+
+  const previewsQuery = trpc.listPreviews.useQuery({ initiativeId });
+  const existingPreview = previewsQuery.data?.find(
+    (p) => p.initiativeId === initiativeId,
+  );
+  const [activePreviewId, setActivePreviewId] = useState<string | null>(null);
+  const previewStatusQuery = trpc.getPreviewStatus.useQuery(
+    { previewId: activePreviewId ?? existingPreview?.id ?? "" },
+    { enabled: !!(activePreviewId ?? existingPreview?.id) },
+  );
+  const preview = previewStatusQuery.data ?? existingPreview;
+
+  const startPreview = trpc.startPreview.useMutation({
+    onSuccess: (data) => {
+      setActivePreviewId(data.id);
+      previewsQuery.refetch();
+      toast.success(`Preview running at ${data.url}`);
+    },
+    onError: (err) => toast.error(`Preview failed: ${err.message}`),
+  });
+
+  const stopPreview = trpc.stopPreview.useMutation({
+    onSuccess: () => {
+      setActivePreviewId(null);
+      toast.success("Preview stopped");
+      previewsQuery.refetch();
+    },
+    onError: (err) => toast.error(`Failed to stop: ${err.message}`),
+  });
+
   const approveMutation = trpc.approveInitiativeReview.useMutation({
     onSuccess: (_data, variables) => {
       const msg = variables.strategy === "merge_and_push"
@@ -87,6 +145,31 @@ export function InitiativeReview({ initiativeId, onCompleted }: InitiativeReview
   const sourceBranch = diffQuery.data?.sourceBranch ?? "";
   const targetBranch = diffQuery.data?.targetBranch ?? "";
 
+  const previewState = firstProjectId && sourceBranch
+    ? {
+        status: preview?.status === "running"
+          ? ("running" as const)
+          : preview?.status === "failed"
+            ? ("failed" as const)
+            : (startPreview.isPending || preview?.status === "building")
+              ? ("building" as const)
+              : ("idle" as const),
+        url: preview?.url ?? undefined,
+        onStart: () =>
+          startPreview.mutate({
+            initiativeId,
+            projectId: firstProjectId,
+            branch: sourceBranch,
+          }),
+        onStop: () => {
+          const id = activePreviewId ?? existingPreview?.id;
+          if (id) stopPreview.mutate({ previewId: id });
+        },
+        isStarting: startPreview.isPending,
+        isStopping: stopPreview.isPending,
+      }
+    : null;
+
   return (
     <div className="rounded-lg border border-border overflow-hidden bg-card">
       {/* Header */}
@@ -125,10 +208,29 @@ export function InitiativeReview({ initiativeId, onCompleted }: InitiativeReview
                 {totalDeletions}
               </span>
             </div>
+
+            {/* Mergeability badge */}
+            {mergeabilityQuery.isLoading ? (
+              <Badge variant="secondary" className="text-[10px] h-5">
+                <Loader2 className="h-2.5 w-2.5 animate-spin mr-1" />
+                Checking...
+              </Badge>
+            ) : mergeability?.mergeable ? (
+              <Badge variant="success" className="text-[10px] h-5">
+                <CheckCircle2 className="h-2.5 w-2.5 mr-1" />
+                Clean merge
+              </Badge>
+            ) : mergeability && !mergeability.mergeable ? (
+              <Badge variant="error" className="text-[10px] h-5">
+                <AlertTriangle className="h-2.5 w-2.5 mr-1" />
+                {mergeability.conflictFiles.length} conflict{mergeability.conflictFiles.length !== 1 ? 's' : ''}
+              </Badge>
+            ) : null}
           </div>
 
-          {/* Right: action buttons */}
+          {/* Right: preview + action buttons */}
           <div className="flex items-center gap-2 shrink-0">
+            {previewState && <PreviewControls preview={previewState} />}
             <Button
               variant="outline"
               size="sm"
@@ -146,7 +248,8 @@ export function InitiativeReview({ initiativeId, onCompleted }: InitiativeReview
             <Button
               size="sm"
               onClick={() => approveMutation.mutate({ initiativeId, strategy: "merge_and_push" })}
-              disabled={approveMutation.isPending}
+              disabled={approveMutation.isPending || mergeability?.mergeable === false}
+              title={mergeability?.mergeable === false ? 'Resolve merge conflicts before merging' : undefined}
               className="h-9 px-5 text-sm font-semibold shadow-sm"
             >
               {approveMutation.isPending ? (
@@ -154,12 +257,25 @@ export function InitiativeReview({ initiativeId, onCompleted }: InitiativeReview
               ) : (
                 <GitMerge className="h-3.5 w-3.5" />
               )}
-              Merge & Push to Default
+              Merge & Push to {targetBranch || "default"}
             </Button>
           </div>
         </div>
       </div>
 
+      {/* Conflict resolution panel */}
+      {mergeability && !mergeability.mergeable && (
+        <ConflictResolutionPanel
+          initiativeId={initiativeId}
+          conflicts={mergeability.conflictFiles}
+          onResolved={() => {
+            void mergeabilityQuery.refetch();
+            void diffQuery.refetch();
+            void commitsQuery.refetch();
+          }}
+        />
+      )}
+
       {/* Main content */}
       <div className="grid grid-cols-1 lg:grid-cols-[260px_1fr]">
         <div className="border-r border-border">

apps/web/src/components/review/LineWithComments.tsx

@@ -15,6 +15,8 @@ interface LineWithCommentsProps {
   onSubmitComment: (body: string) => void;
   onResolveComment: (commentId: string) => void;
   onUnresolveComment: (commentId: string) => void;
+  onReplyComment?: (parentCommentId: string, body: string) => void;
+  onEditComment?: (commentId: string, body: string) => void;
   /** Syntax-highlighted tokens for this line (if available) */
   tokens?: TokenizedLine;
 }
@@ -29,6 +31,8 @@ export function LineWithComments({
   onSubmitComment,
   onResolveComment,
   onUnresolveComment,
+  onReplyComment,
+  onEditComment,
   tokens,
 }: LineWithCommentsProps) {
   const formRef = useRef<HTMLTextAreaElement>(null);
@@ -132,7 +136,7 @@ export function LineWithComments({
 
       {/* Existing comments on this line */}
       {lineComments.length > 0 && (
-        <tr>
+        <tr data-comment-id={lineComments.find((c) => !c.parentCommentId)?.id}>
           <td
             colSpan={3}
             className="px-3 py-2 bg-muted/20 border-y border-border/50"
@@ -141,6 +145,8 @@ export function LineWithComments({
               comments={lineComments}
               onResolve={onResolveComment}
               onUnresolve={onUnresolveComment}
+              onReply={onReplyComment}
+              onEdit={onEditComment}
             />
           </td>
         </tr>

apps/web/src/components/review/PreviewControls.tsx

@@ -0,0 +1,81 @@
+import {
+  ExternalLink,
+  Loader2,
+  Square,
+  CircleDot,
+  RotateCcw,
+} from "lucide-react";
+import { Button } from "@/components/ui/button";
+
+export interface PreviewState {
+  status: "idle" | "building" | "running" | "failed";
+  url?: string;
+  onStart: () => void;
+  onStop: () => void;
+  isStarting: boolean;
+  isStopping: boolean;
+}
+
+export function PreviewControls({ preview }: { preview: PreviewState }) {
+  if (preview.status === "building" || preview.isStarting) {
+    return (
+      <div className="flex items-center gap-1.5 text-xs text-status-active-fg">
+        <Loader2 className="h-3 w-3 animate-spin" />
+        <span>Building...</span>
+      </div>
+    );
+  }
+
+  if (preview.status === "running") {
+    return (
+      <div className="flex items-center gap-1.5">
+        <a
+          href={preview.url}
+          target="_blank"
+          rel="noopener noreferrer"
+          className="flex items-center gap-1 text-xs text-status-success-fg hover:underline"
+        >
+          <CircleDot className="h-3 w-3" />
+          Preview
+          <ExternalLink className="h-2.5 w-2.5" />
+        </a>
+        <Button
+          variant="ghost"
+          size="sm"
+          onClick={preview.onStop}
+          disabled={preview.isStopping}
+          className="h-6 w-6 p-0"
+        >
+          <Square className="h-2.5 w-2.5" />
+        </Button>
+      </div>
+    );
+  }
+
+  if (preview.status === "failed") {
+    return (
+      <Button
+        variant="ghost"
+        size="sm"
+        onClick={preview.onStart}
+        className="h-7 text-xs text-status-error-fg"
+      >
+        <RotateCcw className="h-3 w-3" />
+        Retry Preview
+      </Button>
+    );
+  }
+
+  return (
+    <Button
+      variant="ghost"
+      size="sm"
+      onClick={preview.onStart}
+      disabled={preview.isStarting}
+      className="h-7 text-xs"
+    >
+      <ExternalLink className="h-3 w-3" />
+      Preview
+    </Button>
+  );
+}

apps/web/src/components/review/ReviewHeader.tsx

@@ -6,11 +6,7 @@ import {
   FileCode,
   Plus,
   Minus,
-  ExternalLink,
   Loader2,
-  Square,
-  CircleDot,
-  RotateCcw,
   ArrowRight,
   Eye,
   AlertCircle,
@@ -18,25 +14,21 @@ import {
 } from "lucide-react";
 import { Button } from "@/components/ui/button";
 import { Badge } from "@/components/ui/badge";
+import { PreviewControls } from "./PreviewControls";
+import type { PreviewState } from "./PreviewControls";
 import type { FileDiff, ReviewStatus } from "./types";
 
 interface PhaseOption {
   id: string;
   name: string;
-}
-
-interface PreviewState {
-  status: "idle" | "building" | "running" | "failed";
-  url?: string;
-  onStart: () => void;
-  onStop: () => void;
-  isStarting: boolean;
-  isStopping: boolean;
+  status: string;
 }
 
 interface ReviewHeaderProps {
+  ref?: React.Ref<HTMLDivElement>;
   phases: PhaseOption[];
   activePhaseId: string | null;
+  isReadOnly?: boolean;
   onPhaseSelect: (id: string) => void;
   phaseName: string;
   sourceBranch: string;
@@ -53,8 +45,10 @@ interface ReviewHeaderProps {
 }
 
 export function ReviewHeader({
+  ref,
   phases,
   activePhaseId,
+  isReadOnly,
   onPhaseSelect,
   phaseName,
   sourceBranch,
@@ -72,28 +66,38 @@ export function ReviewHeader({
   const totalAdditions = files.reduce((s, f) => s + f.additions, 0);
   const totalDeletions = files.reduce((s, f) => s + f.deletions, 0);
   const [showConfirmation, setShowConfirmation] = useState(false);
+  const [showRequestConfirm, setShowRequestConfirm] = useState(false);
   const confirmRef = useRef<HTMLDivElement>(null);
+  const requestConfirmRef = useRef<HTMLDivElement>(null);
 
-  // Click-outside handler to dismiss confirmation
+  // Click-outside handler to dismiss confirmation dropdowns
   useEffect(() => {
-    if (!showConfirmation) return;
+    if (!showConfirmation && !showRequestConfirm) return;
     function handleClickOutside(e: MouseEvent) {
       if (
+        showConfirmation &&
         confirmRef.current &&
         !confirmRef.current.contains(e.target as Node)
       ) {
         setShowConfirmation(false);
       }
+      if (
+        showRequestConfirm &&
+        requestConfirmRef.current &&
+        !requestConfirmRef.current.contains(e.target as Node)
+      ) {
+        setShowRequestConfirm(false);
+      }
     }
     document.addEventListener("mousedown", handleClickOutside);
     return () => document.removeEventListener("mousedown", handleClickOutside);
-  }, [showConfirmation]);
+  }, [showConfirmation, showRequestConfirm]);
 
   const viewed = viewedCount ?? 0;
   const total = totalCount ?? 0;
 
   return (
-    <div className="border-b border-border bg-card/80 backdrop-blur-sm">
+    <div ref={ref} className="border-b border-border bg-card backdrop-blur-sm sticky top-0 z-20 rounded-t-lg shadow-[0_-50px_0_0_hsl(var(--background))]">
       {/* Phase selector row */}
       {phases.length > 1 && (
         <div className="flex items-center gap-1 px-4 pt-3 pb-2 border-b border-border/50">
@@ -103,6 +107,12 @@ export function ReviewHeader({
           <div className="flex gap-1 overflow-x-auto">
             {phases.map((phase) => {
               const isActive = phase.id === activePhaseId;
+              const isCompleted = phase.status === "completed";
+              const dotColor = isActive
+                ? "bg-primary"
+                : isCompleted
+                  ? "bg-status-success-dot"
+                  : "bg-status-warning-dot";
               return (
                 <button
                   key={phase.id}
@@ -117,9 +127,7 @@ export function ReviewHeader({
                   `}
                 >
                   <span
-                    className={`h-1.5 w-1.5 rounded-full shrink-0 ${
-                      isActive ? "bg-primary" : "bg-status-warning-dot"
-                    }`}
+                    className={`h-1.5 w-1.5 rounded-full shrink-0 ${dotColor}`}
                   />
                   {phase.name}
                 </button>
@@ -182,102 +190,151 @@ export function ReviewHeader({
           {preview && <PreviewControls preview={preview} />}
 
           {/* Review status / actions */}
-          {status === "pending" && (
-            <>
-              <Button
-                variant="outline"
-                size="sm"
-                onClick={onRequestChanges}
-                disabled={isRequestingChanges}
-                className="h-8 text-xs px-3 border-status-error-border/50 text-status-error-fg hover:bg-status-error-bg/50 hover:border-status-error-border"
-              >
-                {isRequestingChanges ? (
-                  <Loader2 className="h-3 w-3 animate-spin" />
-                ) : (
-                  <X className="h-3 w-3" />
-                )}
-                Request Changes
-              </Button>
-              <div className="relative" ref={confirmRef}>
-                <Button
-                  size="sm"
-                  onClick={() => {
-                    if (unresolvedCount > 0) return;
-                    setShowConfirmation(true);
-                  }}
-                  disabled={unresolvedCount > 0}
-                  className="h-9 px-5 text-sm font-semibold shadow-sm"
-                >
-                  {unresolvedCount > 0 ? (
-                    <>
-                      <AlertCircle className="h-3.5 w-3.5" />
-                      {unresolvedCount} unresolved
-                    </>
-                  ) : (
-                    <>
-                      <GitMerge className="h-3.5 w-3.5" />
-                      Approve & Merge
-                    </>
-                  )}
-                </Button>
-
-                {/* Merge confirmation dropdown */}
-                {showConfirmation && (
-                  <div className="absolute right-0 top-full mt-1 z-20 w-64 rounded-lg border border-border bg-card shadow-lg p-4">
-                    <p className="text-sm font-semibold mb-3">
-                      Ready to merge?
-                    </p>
-                    <div className="space-y-1.5 mb-4">
-                      <div className="flex items-center gap-2 text-xs">
-                        <Check className="h-3.5 w-3.5 text-status-success-fg" />
-                        <span className="text-muted-foreground">
-                          0 unresolved comments
-                        </span>
-                      </div>
-                      <div className="flex items-center gap-2 text-xs">
-                        <Eye className="h-3.5 w-3.5 text-muted-foreground" />
-                        <span className="text-muted-foreground">
-                          {viewed}/{total} files viewed
-                        </span>
-                      </div>
-                    </div>
-                    <div className="flex items-center justify-end gap-2">
-                      <Button
-                        variant="ghost"
-                        size="sm"
-                        onClick={() => setShowConfirmation(false)}
-                        className="h-8 text-xs"
-                      >
-                        Cancel
-                      </Button>
-                      <Button
-                        size="sm"
-                        onClick={() => {
-                          setShowConfirmation(false);
-                          onApprove();
-                        }}
-                        className="h-8 px-4 text-xs font-semibold shadow-sm"
-                      >
-                        <GitMerge className="h-3.5 w-3.5" />
-                        Merge Now
-                      </Button>
-                    </div>
-                  </div>
-                )}
-              </div>
-            </>
-          )}
-          {status === "approved" && (
+          {isReadOnly ? (
             <Badge variant="success" size="xs">
               <Check className="h-3 w-3" />
-              Approved
-            </Badge>
-          )}
-          {status === "changes_requested" && (
-            <Badge variant="warning" size="xs">
-              <X className="h-3 w-3" />
-              Changes Requested
+              Merged
             </Badge>
+          ) : (
+            <>
+              {status === "pending" && (
+                <>
+                  <div className="relative" ref={requestConfirmRef}>
+                    <Button
+                      variant="outline"
+                      size="sm"
+                      onClick={() => setShowRequestConfirm(true)}
+                      disabled={isRequestingChanges || unresolvedCount === 0}
+                      className="h-8 text-xs px-3 border-status-error-border/50 text-status-error-fg hover:bg-status-error-bg/50 hover:border-status-error-border"
+                    >
+                      {isRequestingChanges ? (
+                        <Loader2 className="h-3 w-3 animate-spin" />
+                      ) : (
+                        <X className="h-3 w-3" />
+                      )}
+                      Request Changes
+                    </Button>
+
+                    {showRequestConfirm && (
+                      <div className="absolute right-0 top-full mt-1 z-30 w-64 rounded-lg border border-border bg-card shadow-lg p-4">
+                        <p className="text-sm font-semibold mb-3">
+                          Request changes?
+                        </p>
+                        <div className="space-y-1.5 mb-4">
+                          <div className="flex items-center gap-2 text-xs">
+                            <AlertCircle className="h-3.5 w-3.5 text-status-error-fg" />
+                            <span className="text-muted-foreground">
+                              {unresolvedCount} unresolved {unresolvedCount === 1 ? "comment" : "comments"} will be sent
+                            </span>
+                          </div>
+                        </div>
+                        <div className="flex items-center justify-end gap-2">
+                          <Button
+                            variant="ghost"
+                            size="sm"
+                            onClick={() => setShowRequestConfirm(false)}
+                            className="h-8 text-xs"
+                          >
+                            Cancel
+                          </Button>
+                          <Button
+                            variant="outline"
+                            size="sm"
+                            onClick={() => {
+                              setShowRequestConfirm(false);
+                              onRequestChanges();
+                            }}
+                            className="h-8 px-4 text-xs font-semibold shadow-sm border-status-error-border text-status-error-fg hover:bg-status-error-bg"
+                          >
+                            <X className="h-3.5 w-3.5" />
+                            Request Changes
+                          </Button>
+                        </div>
+                      </div>
+                    )}
+                  </div>
+                  <div className="relative" ref={confirmRef}>
+                    <Button
+                      size="sm"
+                      onClick={() => {
+                        if (unresolvedCount > 0) return;
+                        setShowConfirmation(true);
+                      }}
+                      disabled={unresolvedCount > 0}
+                      className="h-9 px-5 text-sm font-semibold shadow-sm"
+                    >
+                      {unresolvedCount > 0 ? (
+                        <>
+                          <AlertCircle className="h-3.5 w-3.5" />
+                          {unresolvedCount} unresolved
+                        </>
+                      ) : (
+                        <>
+                          <GitMerge className="h-3.5 w-3.5" />
+                          Approve & Merge
+                        </>
+                      )}
+                    </Button>
+
+                    {/* Merge confirmation dropdown */}
+                    {showConfirmation && (
+                      <div className="absolute right-0 top-full mt-1 z-30 w-64 rounded-lg border border-border bg-card shadow-lg p-4">
+                        <p className="text-sm font-semibold mb-3">
+                          Ready to merge?
+                        </p>
+                        <div className="space-y-1.5 mb-4">
+                          <div className="flex items-center gap-2 text-xs">
+                            <Check className="h-3.5 w-3.5 text-status-success-fg" />
+                            <span className="text-muted-foreground">
+                              0 unresolved comments
+                            </span>
+                          </div>
+                          <div className="flex items-center gap-2 text-xs">
+                            <Eye className="h-3.5 w-3.5 text-muted-foreground" />
+                            <span className="text-muted-foreground">
+                              {viewed}/{total} files viewed
+                            </span>
+                          </div>
+                        </div>
+                        <div className="flex items-center justify-end gap-2">
+                          <Button
+                            variant="ghost"
+                            size="sm"
+                            onClick={() => setShowConfirmation(false)}
+                            className="h-8 text-xs"
+                          >
+                            Cancel
+                          </Button>
+                          <Button
+                            size="sm"
+                            onClick={() => {
+                              setShowConfirmation(false);
+                              onApprove();
+                            }}
+                            className="h-8 px-4 text-xs font-semibold shadow-sm"
+                          >
+                            <GitMerge className="h-3.5 w-3.5" />
+                            Merge Now
+                          </Button>
+                        </div>
+                      </div>
+                    )}
+                  </div>
+                </>
+              )}
+              {status === "approved" && (
+                <Badge variant="success" size="xs">
+                  <Check className="h-3 w-3" />
+                  Approved
+                </Badge>
+              )}
+              {status === "changes_requested" && (
+                <Badge variant="warning" size="xs">
+                  <X className="h-3 w-3" />
+                  Changes Requested
+                </Badge>
+              )}
+            </>
           )}
         </div>
       </div>
@@ -285,66 +342,3 @@ export function ReviewHeader({
   );
 }
 
-function PreviewControls({ preview }: { preview: PreviewState }) {
-  if (preview.status === "building" || preview.isStarting) {
-    return (
-      <div className="flex items-center gap-1.5 text-xs text-status-active-fg">
-        <Loader2 className="h-3 w-3 animate-spin" />
-        <span>Building...</span>
-      </div>
-    );
-  }
-
-  if (preview.status === "running") {
-    return (
-      <div className="flex items-center gap-1.5">
-        <a
-          href={preview.url}
-          target="_blank"
-          rel="noopener noreferrer"
-          className="flex items-center gap-1 text-xs text-status-success-fg hover:underline"
-        >
-          <CircleDot className="h-3 w-3" />
-          Preview
-          <ExternalLink className="h-2.5 w-2.5" />
-        </a>
-        <Button
-          variant="ghost"
-          size="sm"
-          onClick={preview.onStop}
-          disabled={preview.isStopping}
-          className="h-6 w-6 p-0"
-        >
-          <Square className="h-2.5 w-2.5" />
-        </Button>
-      </div>
-    );
-  }
-
-  if (preview.status === "failed") {
-    return (
-      <Button
-        variant="ghost"
-        size="sm"
-        onClick={preview.onStart}
-        className="h-7 text-xs text-status-error-fg"
-      >
-        <RotateCcw className="h-3 w-3" />
-        Retry Preview
-      </Button>
-    );
-  }
-
-  return (
-    <Button
-      variant="ghost"
-      size="sm"
-      onClick={preview.onStart}
-      disabled={preview.isStarting}
-      className="h-7 text-xs"
-    >
-      <ExternalLink className="h-3 w-3" />
-      Preview
-    </Button>
-  );
-}

apps/web/src/components/review/ReviewSidebar.tsx

@@ -18,6 +18,7 @@ interface ReviewSidebarProps {
   files: FileDiff[];
   comments: ReviewComment[];
   onFileClick: (filePath: string) => void;
+  onCommentClick?: (commentId: string) => void;
   selectedCommit: string | null;
   activeFiles: FileDiff[];
   commits: CommitInfo[];
@@ -29,6 +30,7 @@ export function ReviewSidebar({
   files,
   comments,
   onFileClick,
+  onCommentClick,
   selectedCommit,
   activeFiles,
   commits,
@@ -63,6 +65,7 @@ export function ReviewSidebar({
             files={files}
             comments={comments}
             onFileClick={onFileClick}
+            onCommentClick={onCommentClick}
             selectedCommit={selectedCommit}
             activeFiles={activeFiles}
             viewedFiles={viewedFiles}
@@ -172,6 +175,7 @@ function FilesView({
   files,
   comments,
   onFileClick,
+  onCommentClick,
   selectedCommit,
   activeFiles,
   viewedFiles,
@@ -179,12 +183,13 @@ function FilesView({
   files: FileDiff[];
   comments: ReviewComment[];
   onFileClick: (filePath: string) => void;
+  onCommentClick?: (commentId: string) => void;
   selectedCommit: string | null;
   activeFiles: FileDiff[];
   viewedFiles: Set<string>;
 }) {
-  const unresolvedCount = comments.filter((c) => !c.resolved).length;
-  const resolvedCount = comments.filter((c) => c.resolved).length;
+  const unresolvedCount = comments.filter((c) => !c.resolved && !c.parentCommentId).length;
+  const resolvedCount = comments.filter((c) => c.resolved && !c.parentCommentId).length;
   const activeFilePaths = new Set(activeFiles.map((f) => f.newPath));
 
   const directoryGroups = useMemo(() => groupFilesByDirectory(files), [files]);
@@ -213,29 +218,66 @@ function FilesView({
         </div>
       )}
 
-      {/* Comment summary */}
+      {/* Discussions — individual threads */}
       {comments.length > 0 && (
         <div className="space-y-1.5">
-          <h4 className="text-[10px] font-semibold text-muted-foreground uppercase tracking-wider">
-            Discussions
-          </h4>
-          <div className="flex items-center gap-3 text-xs">
-            <span className="flex items-center gap-1 text-muted-foreground">
-              <MessageSquare className="h-3 w-3" />
-              {comments.length}
+          <h4 className="text-[10px] font-semibold text-muted-foreground uppercase tracking-wider flex items-center justify-between">
+            <span>Discussions</span>
+            <span className="flex items-center gap-2 font-normal normal-case">
+              {unresolvedCount > 0 && (
+                <span className="flex items-center gap-0.5 text-status-warning-fg">
+                  <Circle className="h-2.5 w-2.5" />
+                  {unresolvedCount}
+                </span>
+              )}
+              {resolvedCount > 0 && (
+                <span className="flex items-center gap-0.5 text-status-success-fg">
+                  <CheckCircle2 className="h-2.5 w-2.5" />
+                  {resolvedCount}
+                </span>
+              )}
             </span>
-            {resolvedCount > 0 && (
-              <span className="flex items-center gap-1 text-status-success-fg">
-                <CheckCircle2 className="h-3 w-3" />
-                {resolvedCount}
-              </span>
-            )}
-            {unresolvedCount > 0 && (
-              <span className="flex items-center gap-1 text-status-warning-fg">
-                <Circle className="h-3 w-3" />
-                {unresolvedCount}
-              </span>
-            )}
+          </h4>
+          <div className="space-y-0.5">
+            {comments
+              .filter((c) => !c.parentCommentId)
+              .map((thread) => {
+                const replyCount = comments.filter(
+                  (c) => c.parentCommentId === thread.id,
+                ).length;
+                return (
+                  <button
+                    key={thread.id}
+                    className={`
+                      flex w-full flex-col gap-0.5 rounded px-2 py-1.5 text-left
+                      transition-colors hover:bg-accent/50
+                      ${thread.resolved ? "opacity-50" : ""}
+                    `}
+                    onClick={() => onCommentClick ? onCommentClick(thread.id) : onFileClick(thread.filePath)}
+                  >
+                    <div className="flex items-center gap-1.5 w-full min-w-0">
+                      {thread.resolved ? (
+                        <CheckCircle2 className="h-3 w-3 text-status-success-fg shrink-0" />
+                      ) : (
+                        <MessageSquare className="h-3 w-3 text-status-warning-fg shrink-0" />
+                      )}
+                      <span className="text-[10px] font-mono text-muted-foreground truncate">
+                        {getFileName(thread.filePath)}:{thread.lineNumber}
+                      </span>
+                      {replyCount > 0 && (
+                        <span className="text-[9px] text-muted-foreground/70 shrink-0 ml-auto">
+                          {replyCount}
+                        </span>
+                      )}
+                    </div>
+                    <span className="text-[11px] text-foreground/80 truncate pl-[18px]">
+                      {thread.body.length > 60
+                        ? thread.body.slice(0, 57) + "..."
+                        : thread.body}
+                    </span>
+                  </button>
+                );
+              })}
           </div>
         </div>
       )}
@@ -263,7 +305,7 @@ function FilesView({
             <div className="space-y-0.5">
               {group.files.map((file) => {
                 const fileCommentCount = comments.filter(
-                  (c) => c.filePath === file.newPath,
+                  (c) => c.filePath === file.newPath && !c.parentCommentId,
                 ).length;
                 const isInView = activeFilePaths.has(file.newPath);
                 const dimmed = selectedCommit && !isInView;

apps/web/src/components/review/ReviewTab.tsx

@@ -1,4 +1,4 @@
-import { useCallback, useMemo, useRef, useState } from "react";
+import { useCallback, useEffect, useMemo, useRef, useState } from "react";
 import { toast } from "sonner";
 import { Loader2 } from "lucide-react";
 import { trpc } from "@/lib/trpc";
@@ -18,6 +18,18 @@ export function ReviewTab({ initiativeId }: ReviewTabProps) {
   const [selectedCommit, setSelectedCommit] = useState<string | null>(null);
   const [viewedFiles, setViewedFiles] = useState<Set<string>>(new Set());
   const fileRefs = useRef<Map<string, HTMLDivElement>>(new Map());
+  const headerRef = useRef<HTMLDivElement>(null);
+  const [headerHeight, setHeaderHeight] = useState(0);
+
+  useEffect(() => {
+    const el = headerRef.current;
+    if (!el) return;
+    const ro = new ResizeObserver(([entry]) => {
+      setHeaderHeight(entry.borderBoxSize?.[0]?.blockSize ?? entry.target.getBoundingClientRect().height);
+    });
+    ro.observe(el, { box: 'border-box' });
+    return () => ro.disconnect();
+  }, []);
 
   const toggleViewed = useCallback((filePath: string) => {
     setViewedFiles(prev => {
@@ -45,14 +57,17 @@ export function ReviewTab({ initiativeId }: ReviewTabProps) {
 
   // Fetch phases for this initiative
   const phasesQuery = trpc.listPhases.useQuery({ initiativeId });
-  const pendingReviewPhases = useMemo(
-    () => (phasesQuery.data ?? []).filter((p) => p.status === "pending_review"),
+  const reviewablePhases = useMemo(
+    () => (phasesQuery.data ?? []).filter((p) => p.status === "pending_review" || p.status === "completed"),
     [phasesQuery.data],
   );
 
-  // Select first pending review phase
+  // Select first pending review phase, falling back to completed phases
   const [selectedPhaseId, setSelectedPhaseId] = useState<string | null>(null);
-  const activePhaseId = selectedPhaseId ?? pendingReviewPhases[0]?.id ?? null;
+  const defaultPhaseId = reviewablePhases.find((p) => p.status === "pending_review")?.id ?? reviewablePhases[0]?.id ?? null;
+  const activePhaseId = selectedPhaseId ?? defaultPhaseId;
+  const activePhase = reviewablePhases.find((p) => p.id === activePhaseId);
+  const isActivePhaseCompleted = activePhase?.status === "completed";
 
   // Fetch projects for this initiative (needed for preview)
   const projectsQuery = trpc.getInitiativeProjects.useQuery({ initiativeId });
@@ -78,18 +93,14 @@ export function ReviewTab({ initiativeId }: ReviewTabProps) {
   );
 
   // Preview state
-  const previewsQuery = trpc.listPreviews.useQuery(
-    { initiativeId },
-  );
+  const previewsQuery = trpc.listPreviews.useQuery({ initiativeId });
   const existingPreview = previewsQuery.data?.find(
     (p) => p.phaseId === activePhaseId || p.initiativeId === initiativeId,
   );
   const [activePreviewId, setActivePreviewId] = useState<string | null>(null);
   const previewStatusQuery = trpc.getPreviewStatus.useQuery(
     { previewId: activePreviewId ?? existingPreview?.id ?? "" },
-    {
-      enabled: !!(activePreviewId ?? existingPreview?.id),
-    },
+    { enabled: !!(activePreviewId ?? existingPreview?.id) },
   );
   const preview = previewStatusQuery.data ?? existingPreview;
   const sourceBranch = diffQuery.data?.sourceBranch ?? commitsQuery.data?.sourceBranch ?? "";
@@ -97,6 +108,7 @@ export function ReviewTab({ initiativeId }: ReviewTabProps) {
   const startPreview = trpc.startPreview.useMutation({
     onSuccess: (data) => {
       setActivePreviewId(data.id);
+      previewsQuery.refetch();
       toast.success(`Preview running at ${data.url}`);
     },
     onError: (err) => toast.error(`Preview failed: ${err.message}`),
@@ -113,15 +125,13 @@ export function ReviewTab({ initiativeId }: ReviewTabProps) {
 
   const previewState = firstProjectId && sourceBranch
     ? {
-        status: startPreview.isPending
-          ? ("building" as const)
-          : preview?.status === "running"
-            ? ("running" as const)
-            : preview?.status === "building"
+        status: preview?.status === "running"
+          ? ("running" as const)
+          : preview?.status === "failed"
+            ? ("failed" as const)
+            : (startPreview.isPending || preview?.status === "building")
               ? ("building" as const)
-              : preview?.status === "failed"
-                ? ("failed" as const)
-                : ("idle" as const),
+              : ("idle" as const),
         url: preview?.url ?? undefined,
         onStart: () =>
           startPreview.mutate({
@@ -155,6 +165,7 @@ export function ReviewTab({ initiativeId }: ReviewTabProps) {
       author: c.author,
       createdAt: typeof c.createdAt === 'string' ? c.createdAt : String(c.createdAt),
       resolved: c.resolved,
+      parentCommentId: c.parentCommentId ?? null,
     }));
   }, [commentsQuery.data]);
 
@@ -177,6 +188,20 @@ export function ReviewTab({ initiativeId }: ReviewTabProps) {
     },
   });
 
+  const replyToCommentMutation = trpc.replyToReviewComment.useMutation({
+    onSuccess: () => {
+      utils.listReviewComments.invalidate({ phaseId: activePhaseId! });
+    },
+    onError: (err) => toast.error(`Failed to post reply: ${err.message}`),
+  });
+
+  const editCommentMutation = trpc.updateReviewComment.useMutation({
+    onSuccess: () => {
+      utils.listReviewComments.invalidate({ phaseId: activePhaseId! });
+    },
+    onError: (err) => toast.error(`Failed to update comment: ${err.message}`),
+  });
+
   const approveMutation = trpc.approvePhaseReview.useMutation({
     onSuccess: () => {
       setStatus("approved");
@@ -223,6 +248,14 @@ export function ReviewTab({ initiativeId }: ReviewTabProps) {
     unresolveCommentMutation.mutate({ id: commentId });
   }, [unresolveCommentMutation]);
 
+  const handleReplyComment = useCallback((parentCommentId: string, body: string) => {
+    replyToCommentMutation.mutate({ parentCommentId, body });
+  }, [replyToCommentMutation]);
+
+  const handleEditComment = useCallback((commentId: string, body: string) => {
+    editCommentMutation.mutate({ id: commentId, body });
+  }, [editCommentMutation]);
+
   const handleApprove = useCallback(() => {
     if (!activePhaseId) return;
     approveMutation.mutate({ phaseId: activePhaseId });
@@ -239,9 +272,7 @@ export function ReviewTab({ initiativeId }: ReviewTabProps) {
 
   const handleRequestChanges = useCallback(() => {
     if (!activePhaseId) return;
-    const summary = window.prompt("Optional: describe what needs to change (leave blank for comments only)");
-    if (summary === null) return; // cancelled
-    requestChangesMutation.mutate({ phaseId: activePhaseId, summary: summary || undefined });
+    requestChangesMutation.mutate({ phaseId: activePhaseId });
   }, [activePhaseId, requestChangesMutation]);
 
   const handleFileClick = useCallback((filePath: string) => {
@@ -251,6 +282,16 @@ export function ReviewTab({ initiativeId }: ReviewTabProps) {
     }
   }, []);
 
+  const handleCommentClick = useCallback((commentId: string) => {
+    const el = document.querySelector(`[data-comment-id="${commentId}"]`);
+    if (el) {
+      el.scrollIntoView({ behavior: "instant", block: "center" });
+      // Brief highlight flash
+      el.classList.add("ring-2", "ring-primary/50");
+      setTimeout(() => el.classList.remove("ring-2", "ring-primary/50"), 1500);
+    }
+  }, []);
+
   const handlePhaseSelect = useCallback((id: string) => {
     setSelectedPhaseId(id);
     setSelectedCommit(null);
@@ -258,7 +299,18 @@ export function ReviewTab({ initiativeId }: ReviewTabProps) {
     setViewedFiles(new Set());
   }, []);
 
-  const unresolvedCount = comments.filter((c) => !c.resolved).length;
+  const unresolvedCount = comments.filter((c) => !c.resolved && !c.parentCommentId).length;
+
+  const activePhaseName =
+    diffQuery.data?.phaseName ??
+    reviewablePhases.find((p) => p.id === activePhaseId)?.name ??
+    "Phase";
+
+  // All files from the full branch diff (for sidebar file list)
+  const allFiles = useMemo(() => {
+    if (!diffQuery.data?.rawDiff) return [];
+    return parseUnifiedDiff(diffQuery.data.rawDiff);
+  }, [diffQuery.data?.rawDiff]);
 
   // Initiative-level review takes priority
   if (isInitiativePendingReview) {
@@ -273,7 +325,7 @@ export function ReviewTab({ initiativeId }: ReviewTabProps) {
     );
   }
 
-  if (pendingReviewPhases.length === 0) {
+  if (reviewablePhases.length === 0) {
     return (
       <div className="flex h-64 items-center justify-center text-muted-foreground">
         <p>No phases pending review</p>
@@ -281,23 +333,17 @@ export function ReviewTab({ initiativeId }: ReviewTabProps) {
     );
   }
 
-  const activePhaseName =
-    diffQuery.data?.phaseName ??
-    pendingReviewPhases.find((p) => p.id === activePhaseId)?.name ??
-    "Phase";
-
-  // All files from the full branch diff (for sidebar file list)
-  const allFiles = useMemo(() => {
-    if (!diffQuery.data?.rawDiff) return [];
-    return parseUnifiedDiff(diffQuery.data.rawDiff);
-  }, [diffQuery.data?.rawDiff]);
-
   return (
-    <div className="rounded-lg border border-border overflow-hidden bg-card">
+    <div
+      className="rounded-lg border border-border bg-card"
+      style={{ '--review-header-h': `${headerHeight}px` } as React.CSSProperties}
+    >
       {/* Header: phase selector + toolbar */}
       <ReviewHeader
-        phases={pendingReviewPhases.map((p) => ({ id: p.id, name: p.name }))}
+        ref={headerRef}
+        phases={reviewablePhases.map((p) => ({ id: p.id, name: p.name, status: p.status }))}
         activePhaseId={activePhaseId}
+        isReadOnly={isActivePhaseCompleted}
         onPhaseSelect={handlePhaseSelect}
         phaseName={activePhaseName}
         sourceBranch={sourceBranch}
@@ -314,14 +360,21 @@ export function ReviewTab({ initiativeId }: ReviewTabProps) {
       />
 
       {/* Main content area — sidebar always rendered to preserve state */}
-      <div className="grid grid-cols-1 lg:grid-cols-[260px_1fr]">
-        {/* Left: Sidebar — sticky so icon strip stays visible */}
+      <div className="grid grid-cols-1 lg:grid-cols-[260px_1fr] rounded-b-lg">
+        {/* Left: Sidebar — sticky to viewport, scrolls independently */}
         <div className="border-r border-border">
-          <div className="sticky top-0 h-[calc(100vh-12rem)]">
+          <div
+            className="sticky overflow-hidden"
+            style={{
+              top: `${headerHeight}px`,
+              maxHeight: `calc(100vh - ${headerHeight}px)`,
+            }}
+          >
             <ReviewSidebar
               files={allFiles}
               comments={comments}
               onFileClick={handleFileClick}
+              onCommentClick={handleCommentClick}
               selectedCommit={selectedCommit}
               activeFiles={files}
               commits={commits}
@@ -351,6 +404,8 @@ export function ReviewTab({ initiativeId }: ReviewTabProps) {
               onAddComment={handleAddComment}
               onResolveComment={handleResolveComment}
               onUnresolveComment={handleUnresolveComment}
+              onReplyComment={handleReplyComment}
+              onEditComment={handleEditComment}
               viewedFiles={viewedFiles}
               onToggleViewed={toggleViewed}
               onRegisterRef={registerFileRef}

apps/web/src/components/review/types.ts

@@ -34,6 +34,7 @@ export interface ReviewComment {
   author: string;
   createdAt: string;
   resolved: boolean;
+  parentCommentId?: string | null;
 }
 
 export type ReviewStatus = "pending" | "approved" | "changes_requested";

apps/web/src/hooks/index.ts

@@ -9,10 +9,16 @@ export { useAutoSave } from './useAutoSave.js';
 export { useDebounce, useDebounceWithImmediate } from './useDebounce.js';
 export { useLiveUpdates } from './useLiveUpdates.js';
 export { useRefineAgent } from './useRefineAgent.js';
+export { useConflictAgent } from './useConflictAgent.js';
 export { useSubscriptionWithErrorHandling } from './useSubscriptionWithErrorHandling.js';
 
 export type {
   RefineAgentState,
   SpawnRefineAgentOptions,
   UseRefineAgentResult,
-} from './useRefineAgent.js';
+} from './useRefineAgent.js';
+
+export type {
+  ConflictAgentState,
+  UseConflictAgentResult,
+} from './useConflictAgent.js';

apps/web/src/hooks/useConflictAgent.ts

@@ -0,0 +1,214 @@
+import { useCallback, useMemo, useRef } from 'react';
+import { trpc } from '@/lib/trpc';
+import type { PendingQuestions } from '@codewalk-district/shared';
+
+export type ConflictAgentState = 'none' | 'running' | 'waiting' | 'completed' | 'crashed';
+
+type ConflictAgent = NonNullable<ReturnType<typeof trpc.getActiveConflictAgent.useQuery>['data']>;
+
+export interface UseConflictAgentResult {
+  agent: ConflictAgent | null;
+  state: ConflictAgentState;
+  questions: PendingQuestions | null;
+  spawn: {
+    mutate: (options: { initiativeId: string; provider?: string }) => void;
+    isPending: boolean;
+    error: Error | null;
+  };
+  resume: {
+    mutate: (answers: Record<string, string>) => void;
+    isPending: boolean;
+    error: Error | null;
+  };
+  stop: {
+    mutate: () => void;
+    isPending: boolean;
+  };
+  dismiss: () => void;
+  isLoading: boolean;
+  refresh: () => void;
+}
+
+export function useConflictAgent(initiativeId: string): UseConflictAgentResult {
+  const utils = trpc.useUtils();
+
+  const agentQuery = trpc.getActiveConflictAgent.useQuery({ initiativeId });
+  const agent = agentQuery.data ?? null;
+
+  const state: ConflictAgentState = useMemo(() => {
+    if (!agent) return 'none';
+    switch (agent.status) {
+      case 'running':
+        return 'running';
+      case 'waiting_for_input':
+        return 'waiting';
+      case 'idle':
+        return 'completed';
+      case 'crashed':
+        return 'crashed';
+      default:
+        return 'none';
+    }
+  }, [agent]);
+
+  const questionsQuery = trpc.getAgentQuestions.useQuery(
+    { id: agent?.id ?? '' },
+    { enabled: state === 'waiting' && !!agent },
+  );
+
+  const spawnMutation = trpc.spawnConflictResolutionAgent.useMutation({
+    onMutate: async () => {
+      await utils.listAgents.cancel();
+      await utils.getActiveConflictAgent.cancel({ initiativeId });
+
+      const previousAgents = utils.listAgents.getData();
+      const previousConflictAgent = utils.getActiveConflictAgent.getData({ initiativeId });
+
+      const tempAgent = {
+        id: `temp-${Date.now()}`,
+        name: `conflict-${Date.now()}`,
+        mode: 'execute' as const,
+        status: 'running' as const,
+        initiativeId,
+        taskId: null,
+        phaseId: null,
+        provider: 'claude',
+        accountId: null,
+        instruction: null,
+        createdAt: new Date().toISOString(),
+        updatedAt: new Date().toISOString(),
+        userDismissedAt: null,
+        completedAt: null,
+      };
+
+      utils.listAgents.setData(undefined, (old = []) => [tempAgent, ...old]);
+      utils.getActiveConflictAgent.setData({ initiativeId }, tempAgent as any);
+
+      return { previousAgents, previousConflictAgent };
+    },
+    onError: (_err, _variables, context) => {
+      if (context?.previousAgents) {
+        utils.listAgents.setData(undefined, context.previousAgents);
+      }
+      if (context?.previousConflictAgent !== undefined) {
+        utils.getActiveConflictAgent.setData({ initiativeId }, context.previousConflictAgent);
+      }
+    },
+    onSettled: () => {
+      void utils.listAgents.invalidate();
+      void utils.getActiveConflictAgent.invalidate({ initiativeId });
+    },
+  });
+
+  const resumeMutation = trpc.resumeAgent.useMutation({
+    onSuccess: () => {
+      void utils.listAgents.invalidate();
+    },
+  });
+
+  const stopMutation = trpc.stopAgent.useMutation({
+    onSuccess: () => {
+      void utils.listAgents.invalidate();
+      void utils.listWaitingAgents.invalidate();
+    },
+  });
+
+  const dismissMutation = trpc.dismissAgent.useMutation({
+    onMutate: async ({ id }) => {
+      await utils.listAgents.cancel();
+      await utils.getActiveConflictAgent.cancel({ initiativeId });
+
+      const previousAgents = utils.listAgents.getData();
+      const previousConflictAgent = utils.getActiveConflictAgent.getData({ initiativeId });
+
+      utils.listAgents.setData(undefined, (old = []) => old.filter(a => a.id !== id));
+      utils.getActiveConflictAgent.setData({ initiativeId }, null);
+
+      return { previousAgents, previousConflictAgent };
+    },
+    onError: (_err, _variables, context) => {
+      if (context?.previousAgents) {
+        utils.listAgents.setData(undefined, context.previousAgents);
+      }
+      if (context?.previousConflictAgent !== undefined) {
+        utils.getActiveConflictAgent.setData({ initiativeId }, context.previousConflictAgent);
+      }
+    },
+    onSettled: () => {
+      void utils.listAgents.invalidate();
+      void utils.getActiveConflictAgent.invalidate({ initiativeId });
+    },
+  });
+
+  const spawnMutateRef = useRef(spawnMutation.mutate);
+  spawnMutateRef.current = spawnMutation.mutate;
+  const agentRef = useRef(agent);
+  agentRef.current = agent;
+  const resumeMutateRef = useRef(resumeMutation.mutate);
+  resumeMutateRef.current = resumeMutation.mutate;
+  const stopMutateRef = useRef(stopMutation.mutate);
+  stopMutateRef.current = stopMutation.mutate;
+  const dismissMutateRef = useRef(dismissMutation.mutate);
+  dismissMutateRef.current = dismissMutation.mutate;
+
+  const spawnFn = useCallback(({ initiativeId, provider }: { initiativeId: string; provider?: string }) => {
+    spawnMutateRef.current({ initiativeId, provider });
+  }, []);
+
+  const spawn = useMemo(() => ({
+    mutate: spawnFn,
+    isPending: spawnMutation.isPending,
+    error: spawnMutation.error,
+  }), [spawnFn, spawnMutation.isPending, spawnMutation.error]);
+
+  const resumeFn = useCallback((answers: Record<string, string>) => {
+    const a = agentRef.current;
+    if (a) {
+      resumeMutateRef.current({ id: a.id, answers });
+    }
+  }, []);
+
+  const resume = useMemo(() => ({
+    mutate: resumeFn,
+    isPending: resumeMutation.isPending,
+    error: resumeMutation.error,
+  }), [resumeFn, resumeMutation.isPending, resumeMutation.error]);
+
+  const stopFn = useCallback(() => {
+    const a = agentRef.current;
+    if (a) {
+      stopMutateRef.current({ id: a.id });
+    }
+  }, []);
+
+  const stop = useMemo(() => ({
+    mutate: stopFn,
+    isPending: stopMutation.isPending,
+  }), [stopFn, stopMutation.isPending]);
+
+  const dismiss = useCallback(() => {
+    const a = agentRef.current;
+    if (a) {
+      dismissMutateRef.current({ id: a.id });
+    }
+  }, []);
+
+  const refresh = useCallback(() => {
+    void utils.getActiveConflictAgent.invalidate({ initiativeId });
+  }, [utils, initiativeId]);
+
+  const isLoading = agentQuery.isLoading ||
+    (state === 'waiting' && questionsQuery.isLoading);
+
+  return {
+    agent,
+    state,
+    questions: questionsQuery.data ?? null,
+    spawn,
+    resume,
+    stop,
+    dismiss,
+    isLoading,
+    refresh,
+  };
+}

apps/web/src/lib/invalidation.ts

@@ -52,7 +52,7 @@ const INVALIDATION_MAP: Partial<Record<MutationName, QueryName[]>> = {
 
   // --- Phases ---
   createPhase: ["listPhases", "listInitiativePhaseDependencies"],
-  deletePhase: ["listPhases", "listInitiativeTasks", "listInitiativePhaseDependencies"],
+  deletePhase: ["listPhases", "listInitiativeTasks", "listInitiativePhaseDependencies", "listChangeSets"],
   updatePhase: ["listPhases", "getPhase"],
   approvePhase: ["listPhases", "listInitiativeTasks"],
   queuePhase: ["listPhases"],
@@ -65,6 +65,8 @@ const INVALIDATION_MAP: Partial<Record<MutationName, QueryName[]>> = {
   createChildTasks: ["listTasks", "listInitiativeTasks", "listPhaseTasks"],
   queueTask: ["listTasks", "listInitiativeTasks", "listPhaseTasks"],
 
+  deleteTask: ["listTasks", "listInitiativeTasks", "listPhaseTasks", "listChangeSets"],
+
   // --- Change Sets ---
   revertChangeSet: ["listPhases", "listPhaseTasks", "listInitiativeTasks", "listPages", "getPage", "listChangeSets", "getRootPage", "getChangeSet"],