diff --git a/src/renderer/src/components/sidebar/add-remote-host-ssh-actions.ts b/src/renderer/src/components/sidebar/add-remote-host-ssh-actions.ts
index 7ad8c6f5f86..6b585156749 100644
--- a/src/renderer/src/components/sidebar/add-remote-host-ssh-actions.ts
+++ b/src/renderer/src/components/sidebar/add-remote-host-ssh-actions.ts
@@ -43,7 +43,7 @@ export async function saveNewSshHostFromForm({
 }: {
   form: EditingTarget
   ssh: SshApi
-  recordSshRepoReadoptions: (readoptions: SshRepoReadoption[]) => void
+  recordSshRepoReadoptions: (readoptions: readonly SshRepoReadoption[]) => void
   setSshTargetsMetadata: (targets: SshTarget[]) => void
   recordFeatureInteraction: (feature: 'ssh') => void
 }): Promise<'saved' | 'validation-failed' | 'failed'> {
@@ -170,7 +170,7 @@ export async function addAllSshConfigHostsToOrca({
   recordFeatureInteraction
 }: {
   ssh: SshApi
-  recordSshRepoReadoptions: (readoptions: SshRepoReadoption[]) => void
+  recordSshRepoReadoptions: (readoptions: readonly SshRepoReadoption[]) => void
   setSshTargetsMetadata: (targets: SshTarget[]) => void
   recordFeatureInteraction: (feature: 'ssh') => void
 }): Promise<{ kind: 'added'; count: number } | { kind: 'already-synced' } | { kind: 'failed' }> {
diff --git a/src/renderer/src/store/slices/repos.ts b/src/renderer/src/store/slices/repos.ts
index d5bd49f5a95..fd96ad3e572 100644
--- a/src/renderer/src/store/slices/repos.ts
+++ b/src/renderer/src/store/slices/repos.ts
@@ -1781,8 +1781,8 @@ export type RepoSlice = {
   activeRepoId: string | null
   // Monotonic sequence so overlapping catalog fetches can drop stale same-host results (#7020).
   reposFetchGeneration: number
-  pendingSshRepoReadoptions: SshRepoReadoption[]
-  recordSshRepoReadoptions: (readoptions: SshRepoReadoption[]) => void
+  pendingSshRepoReadoptions: readonly SshRepoReadoption[]
+  recordSshRepoReadoptions: (readoptions: readonly SshRepoReadoption[]) => void
   fetchRepos: (options?: RuntimeCatalogFetchOptions) => Promise<void>
   fetchReposForAllHosts: (options?: AllHostCatalogFetchOptions) => Promise<void>
   awaitLocalRepoCatalogSettlement: () => Promise<void>
diff --git a/src/renderer/src/store/slices/superseded-ssh-repo-rows.ts b/src/renderer/src/store/slices/superseded-ssh-repo-rows.ts
index 4b20cfa6edf..c18e0f6e5af 100644
--- a/src/renderer/src/store/slices/superseded-ssh-repo-rows.ts
+++ b/src/renderer/src/store/slices/superseded-ssh-repo-rows.ts
@@ -4,7 +4,7 @@ import { getRepoExecutionHostId, toSshExecutionHostId } from '../../../../shared
 
 export type SshRepoReconciliation = {
   repos: readonly Repo[]
-  pendingReadoptions: SshRepoReadoption[]
+  pendingReadoptions: readonly SshRepoReadoption[]
 }
 
 function repoBelongsToTarget(repo: Repo, targetId: string): boolean {
@@ -69,7 +69,7 @@ export function reconcileReadoptedSshRepoRows(
 export function mergeSshRepoReadoptions(
   pending: readonly SshRepoReadoption[],
   incoming: readonly SshRepoReadoption[]
-): SshRepoReadoption[] {
+): readonly SshRepoReadoption[] {
   const repoIdsByMigration = new Map<string, Set<string>>()
   for (const readoption of [...pending, ...incoming]) {
     const key = `${readoption.oldTargetId}\0${readoption.newTargetId}`