diff --git a/web/src/components/projects/integration-form.tsx b/web/src/components/projects/integration-form.tsx
index 01361876..668daaea 100644
--- a/web/src/components/projects/integration-form.tsx
+++ b/web/src/components/projects/integration-form.tsx
@@ -391,14 +391,22 @@ function GitHubWebhookSection({ projectId }: { projectId: string }) {
 // SCM Tab (GitHub)
 // ============================================================================
 
+interface SCMTabProject {
+	repo?: string | null;
+	baseBranch?: string | null;
+	branchPrefix?: string | null;
+}
+
 function SCMTab({
 	projectId,
 	initialProvider,
 	initialCredentials,
+	project,
 }: {
 	projectId: string;
 	initialProvider: string;
 	initialCredentials: Map<string, number>;
+	project?: SCMTabProject;
 }) {
 	const queryClient = useQueryClient();
 
@@ -408,12 +416,31 @@ function SCMTab({
 	const [provider] = useState(initialProvider || 'github');
 	const [credentialMap, setCredentialMap] = useState<Map<string, number>>(initialCredentials);
 
+	// Project-level SCM fields
+	const [repo, setRepo] = useState(project?.repo ?? '');
+	const [baseBranch, setBaseBranch] = useState(project?.baseBranch ?? 'main');
+	const [branchPrefix, setBranchPrefix] = useState(project?.branchPrefix ?? 'feature/');
+
 	useEffect(() => {
 		setCredentialMap(initialCredentials);
 	}, [initialCredentials]);
 
+	useEffect(() => {
+		setRepo(project?.repo ?? '');
+		setBaseBranch(project?.baseBranch ?? 'main');
+		setBranchPrefix(project?.branchPrefix ?? 'feature/');
+	}, [project?.repo, project?.baseBranch, project?.branchPrefix]);
+
 	const saveMutation = useMutation({
 		mutationFn: async () => {
+			// Save project-level SCM fields
+			await trpcClient.projects.update.mutate({
+				id: projectId,
+				repo: repo || undefined,
+				baseBranch,
+				branchPrefix,
+			});
+
 			// Note: triggers are intentionally omitted — they are managed via the Agent Configs tab
 			const result = await trpcClient.projects.integrations.upsert.mutate({
 				projectId,
@@ -435,6 +462,12 @@ function SCMTab({
 			return result;
 		},
 		onSuccess: () => {
+			queryClient.invalidateQueries({
+				queryKey: trpc.projects.getById.queryOptions({ id: projectId }).queryKey,
+			});
+			queryClient.invalidateQueries({
+				queryKey: trpc.projects.listFull.queryOptions().queryKey,
+			});
 			queryClient.invalidateQueries({
 				queryKey: trpc.projects.integrations.list.queryOptions({ projectId }).queryKey,
 			});
@@ -451,6 +484,42 @@ function SCMTab({
 
 	return (
 		<div className="space-y-6">
+			{/* Repository Settings */}
+			<div className="space-y-4">
+				<Label className="text-sm font-medium">Repository Settings</Label>
+				<div className="space-y-2">
+					<Label htmlFor="scm-repo">Repository (optional)</Label>
+					<Input
+						id="scm-repo"
+						value={repo}
+						onChange={(e) => setRepo(e.target.value)}
+						placeholder="owner/repo"
+					/>
+				</div>
+				<div className="grid grid-cols-2 gap-4">
+					<div className="space-y-2">
+						<Label htmlFor="scm-baseBranch">Base Branch</Label>
+						<Input
+							id="scm-baseBranch"
+							value={baseBranch}
+							onChange={(e) => setBaseBranch(e.target.value)}
+							placeholder="main"
+						/>
+					</div>
+					<div className="space-y-2">
+						<Label htmlFor="scm-branchPrefix">Branch Prefix</Label>
+						<Input
+							id="scm-branchPrefix"
+							value={branchPrefix}
+							onChange={(e) => setBranchPrefix(e.target.value)}
+							placeholder="feature/"
+						/>
+					</div>
+				</div>
+			</div>
+
+			<hr className="border-border" />
+
 			<p className="text-sm text-muted-foreground">
 				CASCADE uses two separate GitHub bot accounts to prevent feedback loops. The{' '}
 				<strong>implementer</strong> writes code and creates PRs. The <strong>reviewer</strong>{' '}
@@ -564,6 +633,7 @@ export function IntegrationForm({ projectId }: { projectId: string }) {
 	const scmCredsQuery = useQuery(
 		trpc.projects.integrationCredentials.list.queryOptions({ projectId, category: 'scm' }),
 	);
+	const projectQuery = useQuery(trpc.projects.getById.queryOptions({ id: projectId }));
 	const [activeTab, setActiveTab] = useState<IntegrationCategory>('pm');
 
 	if (integrationsQuery.isLoading) {
@@ -614,6 +684,7 @@ export function IntegrationForm({ projectId }: { projectId: string }) {
 					projectId={projectId}
 					initialProvider={scmProvider}
 					initialCredentials={scmCredMap}
+					project={projectQuery.data}
 				/>
 			)}
 		</div>
diff --git a/web/src/components/projects/project-general-form.tsx b/web/src/components/projects/project-general-form.tsx
index 45b0de6c..d9878f93 100644
--- a/web/src/components/projects/project-general-form.tsx
+++ b/web/src/components/projects/project-general-form.tsx
@@ -6,9 +6,6 @@ import { useState } from 'react';
 interface Project {
 	id: string;
 	name: string;
-	repo?: string | null;
-	baseBranch: string | null;
-	branchPrefix: string | null;
 	model: string | null;
 	maxIterations: number | null;
 	watchdogTimeoutMs: number | null;
@@ -27,9 +24,6 @@ function numericFieldDefault(value: number | null | undefined): string {
 export function ProjectGeneralForm({ project }: { project: Project }) {
 	const updateMutation = useProjectUpdate(project.id);
 	const [name, setName] = useState(project.name);
-	const [repo, setRepo] = useState(project.repo ?? '');
-	const [baseBranch, setBaseBranch] = useState(project.baseBranch ?? 'main');
-	const [branchPrefix, setBranchPrefix] = useState(project.branchPrefix ?? 'feature/');
 	const [watchdogTimeoutMs, setWatchdogTimeoutMs] = useState(
 		numericFieldDefault(project.watchdogTimeoutMs),
 	);
@@ -44,9 +38,6 @@ export function ProjectGeneralForm({ project }: { project: Project }) {
 		e.preventDefault();
 		updateMutation.mutate({
 			name,
-			repo: repo || undefined,
-			baseBranch,
-			branchPrefix,
 			watchdogTimeoutMs: watchdogTimeoutMs ? Number.parseInt(watchdogTimeoutMs, 10) : null,
 			progressModel: progressModel || null,
 			progressIntervalMinutes: progressIntervalMinutes || null,
@@ -57,38 +48,9 @@ export function ProjectGeneralForm({ project }: { project: Project }) {
 
 	return (
 		<form onSubmit={handleSubmit} className="max-w-2xl space-y-4">
-			<div className="grid grid-cols-2 gap-4">
-				<div className="space-y-2">
-					<Label htmlFor="name">Name</Label>
-					<Input id="name" value={name} onChange={(e) => setName(e.target.value)} required />
-				</div>
-				<div className="space-y-2">
-					<Label htmlFor="repo">Repository (optional)</Label>
-					<Input
-						id="repo"
-						value={repo}
-						onChange={(e) => setRepo(e.target.value)}
-						placeholder="owner/repo"
-					/>
-				</div>
-			</div>
-			<div className="grid grid-cols-2 gap-4">
-				<div className="space-y-2">
-					<Label htmlFor="baseBranch">Base Branch</Label>
-					<Input
-						id="baseBranch"
-						value={baseBranch}
-						onChange={(e) => setBaseBranch(e.target.value)}
-					/>
-				</div>
-				<div className="space-y-2">
-					<Label htmlFor="branchPrefix">Branch Prefix</Label>
-					<Input
-						id="branchPrefix"
-						value={branchPrefix}
-						onChange={(e) => setBranchPrefix(e.target.value)}
-					/>
-				</div>
+			<div className="space-y-2">
+				<Label htmlFor="name">Name</Label>
+				<Input id="name" value={name} onChange={(e) => setName(e.target.value)} required />
 			</div>
 			<div className="grid grid-cols-2 gap-4">
 				<div className="space-y-2">