diff --git a/packages/builder/src/stores/builder/automations.ts b/packages/builder/src/stores/builder/automations.ts
index 98213581a6..ddb8706482 100644
--- a/packages/builder/src/stores/builder/automations.ts
+++ b/packages/builder/src/stores/builder/automations.ts
@@ -2,7 +2,7 @@ import { derived, get } from "svelte/store"
 import { API } from "@/api"
 import { cloneDeep } from "lodash/fp"
 import { generate } from "shortid"
-import { createHistoryStore } from "@/stores/builder/history"
+import { createHistoryStore, HistoryStore } from "@/stores/builder/history"
 import { licensing } from "@/stores/portal"
 import { tables, appStore } from "@/stores/builder"
 import { notifications } from "@budibase/bbui"
@@ -1428,7 +1428,7 @@ const automationActions = (store: AutomationStore) => ({
 })
 
 class AutomationStore extends BudiStore<AutomationState> {
-  history: any
+  history: HistoryStore<Automation>
   actions: ReturnType<typeof automationActions>
 
   constructor() {
diff --git a/packages/builder/src/stores/builder/componentTreeNodes.ts b/packages/builder/src/stores/builder/componentTreeNodes.ts
index cec4e3a4a0..b88563de6a 100644
--- a/packages/builder/src/stores/builder/componentTreeNodes.ts
+++ b/packages/builder/src/stores/builder/componentTreeNodes.ts
@@ -1,7 +1,7 @@
 import { get } from "svelte/store"
 import { selectedScreen as selectedScreenStore } from "./screens"
 import { findComponentPath } from "@/helpers/components"
-import { Screen, Component } from "@budibase/types"
+import { Component, Screen } from "@budibase/types"
 import { BudiStore, PersistenceType } from "@/stores/BudiStore"
 
 interface OpenNodesState {
diff --git a/packages/builder/src/stores/builder/history.js b/packages/builder/src/stores/builder/history.ts
similarity index 79%
rename from packages/builder/src/stores/builder/history.js
rename to packages/builder/src/stores/builder/history.ts
index 50d68bd543..6568c5abca 100644
--- a/packages/builder/src/stores/builder/history.js
+++ b/packages/builder/src/stores/builder/history.ts
@@ -1,10 +1,25 @@
-import * as jsonpatch from "fast-json-patch/index.mjs"
-import { writable, derived, get } from "svelte/store"
+import { Document } from "@budibase/types"
+import * as jsonpatch from "fast-json-patch"
+import { writable, derived, get, Readable } from "svelte/store"
 
-export const Operations = {
-  Add: "Add",
-  Delete: "Delete",
-  Change: "Change",
+export const enum Operations {
+  Add = "Add",
+  Delete = "Delete",
+  Change = "Change",
+}
+
+interface Operator<T extends Document> {
+  id?: number
+  type: Operations
+  doc: T
+  forwardPatch?: jsonpatch.Operation[]
+  backwardsPatch?: jsonpatch.Operation[]
+}
+
+interface HistoryState<T extends Document> {
+  history: Operator<T>[]
+  position: number
+  loading?: boolean
 }
 
 export const initialState = {
@@ -13,14 +28,38 @@ export const initialState = {
   loading: false,
 }
 
-export const createHistoryStore = ({
+export interface HistoryStore<T extends Document>
+  extends Readable<
+    HistoryState<T> & {
+      canUndo: boolean
+      canRedo: boolean
+    }
+  > {
+  wrapSaveDoc: (
+    fn: (doc: T) => Promise<T>
+  ) => (doc: T, operationId?: number) => Promise<T>
+  wrapDeleteDoc: (
+    fn: (doc: T) => Promise<void>
+  ) => (doc: T, operationId?: number) => Promise<void>
+
+  reset: () => void
+  undo: () => Promise<void>
+  redo: () => Promise<void>
+}
+
+export const createHistoryStore = <T extends Document>({
   getDoc,
   selectDoc,
-  beforeAction = () => {},
-  afterAction = () => {},
-}) => {
+  beforeAction,
+  afterAction,
+}: {
+  getDoc: (id: string) => T | undefined
+  selectDoc: (id: string) => void
+  beforeAction?: (operation?: Operator<T>) => void
+  afterAction?: (operation?: Operator<T>) => void
+}): HistoryStore<T> => {
   // Use a derived store to check if we are able to undo or redo any operations
-  const store = writable(initialState)
+  const store = writable<HistoryState<T>>(initialState)
   const derivedStore = derived(store, $store => {
     return {
       ...$store,
@@ -31,8 +70,8 @@ export const createHistoryStore = ({
 
   // Wrapped versions of essential functions which we call ourselves when using
   // undo and redo
-  let saveFn
-  let deleteFn
+  let saveFn: (doc: T, operationId?: number) => Promise<T>
+  let deleteFn: (doc: T, operationId?: number) => Promise<void>
 
   /**
    * Internal util to set the loading flag
@@ -66,7 +105,7 @@ export const createHistoryStore = ({
    * For internal use only.
    * @param operation the operation to save
    */
-  const saveOperation = operation => {
+  const saveOperation = (operation: Operator<T>) => {
     store.update(state => {
       // Update history
       let history = state.history
@@ -93,15 +132,15 @@ export const createHistoryStore = ({
    * @param fn the save function
    * @returns {function} a wrapped version of the save function
    */
-  const wrapSaveDoc = fn => {
-    saveFn = async (doc, operationId) => {
+  const wrapSaveDoc = (fn: (doc: T) => Promise<T>) => {
+    saveFn = async (doc: T, operationId?: number) => {
       // Only works on a single doc at a time
       if (!doc || Array.isArray(doc)) {
         return
       }
       startLoading()
       try {
-        const oldDoc = getDoc(doc._id)
+        const oldDoc = getDoc(doc._id!)
         const newDoc = jsonpatch.deepClone(await fn(doc))
 
         // Store the change
@@ -141,8 +180,8 @@ export const createHistoryStore = ({
    * @param fn the delete function
    * @returns {function} a wrapped version of the delete function
    */
-  const wrapDeleteDoc = fn => {
-    deleteFn = async (doc, operationId) => {
+  const wrapDeleteDoc = (fn: (doc: T) => Promise<void>) => {
+    deleteFn = async (doc: T, operationId?: number) => {
       // Only works on a single doc at a time
       if (!doc || Array.isArray(doc)) {
         return
@@ -201,7 +240,7 @@ export const createHistoryStore = ({
       // Undo ADD
       if (operation.type === Operations.Add) {
         // Try to get the latest doc version to delete
-        const latestDoc = getDoc(operation.doc._id)
+        const latestDoc = getDoc(operation.doc._id!)
         const doc = latestDoc || operation.doc
         await deleteFn(doc, operation.id)
       }
@@ -219,7 +258,7 @@ export const createHistoryStore = ({
       // Undo CHANGE
       else {
         // Get the current doc and apply the backwards patch on top of it
-        let doc = jsonpatch.deepClone(getDoc(operation.doc._id))
+        let doc = jsonpatch.deepClone(getDoc(operation.doc._id!))
         if (doc) {
           jsonpatch.applyPatch(
             doc,
@@ -283,7 +322,7 @@ export const createHistoryStore = ({
       // Redo DELETE
       else if (operation.type === Operations.Delete) {
         // Try to get the latest doc version to delete
-        const latestDoc = getDoc(operation.doc._id)
+        const latestDoc = getDoc(operation.doc._id!)
         const doc = latestDoc || operation.doc
         await deleteFn(doc, operation.id)
       }
@@ -291,7 +330,7 @@ export const createHistoryStore = ({
       // Redo CHANGE
       else {
         // Get the current doc and apply the forwards patch on top of it
-        let doc = jsonpatch.deepClone(getDoc(operation.doc._id))
+        let doc = jsonpatch.deepClone(getDoc(operation.doc._id!))
         if (doc) {
           jsonpatch.applyPatch(doc, jsonpatch.deepClone(operation.forwardPatch))
           await saveFn(doc, operation.id)
diff --git a/packages/builder/src/stores/builder/screens.ts b/packages/builder/src/stores/builder/screens.ts
index a1b51875b3..64fe31752d 100644
--- a/packages/builder/src/stores/builder/screens.ts
+++ b/packages/builder/src/stores/builder/screens.ts
@@ -10,7 +10,7 @@ import {
   navigationStore,
   selectedComponent,
 } from "@/stores/builder"
-import { createHistoryStore } from "@/stores/builder/history"
+import { createHistoryStore, HistoryStore } from "@/stores/builder/history"
 import { API } from "@/api"
 import { BudiStore } from "../BudiStore"
 import {
@@ -33,9 +33,9 @@ export const initialScreenState: ScreenState = {
 
 // Review the nulls
 export class ScreenStore extends BudiStore<ScreenState> {
-  history: any
-  delete: any
-  save: any
+  history: HistoryStore<Screen>
+  delete: (screens: Screen) => Promise<void>
+  save: (screen: Screen) => Promise<Screen>
 
   constructor() {
     super(initialScreenState)
@@ -280,7 +280,10 @@ export class ScreenStore extends BudiStore<ScreenState> {
    * supports deeply mutating the current doc rather than just appending data.
    */
   sequentialScreenPatch = Utils.sequential(
-    async (patchFn: (screen: Screen) => any, screenId: string) => {
+    async (
+      patchFn: (screen: Screen) => boolean,
+      screenId: string
+    ): Promise<Screen | void> => {
       const state = get(this.store)
       const screen = state.screens.find(screen => screen._id === screenId)
       if (!screen) {
@@ -361,10 +364,10 @@ export class ScreenStore extends BudiStore<ScreenState> {
    * Any deleted screens will then have their routes/links purged
    *
    * Wrapped by {@link delete}
-   * @param {Screen | Screen[]} screens
+   * @param {Screen } screens
    */
-  async deleteScreen(screens: Screen | Screen[]) {
-    const screensToDelete = Array.isArray(screens) ? screens : [screens]
+  async deleteScreen(screen: Screen) {
+    const screensToDelete = [screen]
     // Build array of promises to speed up bulk deletions
     let promises: Promise<DeleteScreenResponse>[] = []
     let deleteUrls: string[] = []
diff --git a/packages/frontend-core/src/utils/utils.js b/packages/frontend-core/src/utils/utils.ts
similarity index 81%
rename from packages/frontend-core/src/utils/utils.js
rename to packages/frontend-core/src/utils/utils.ts
index 3dbaa23d3c..85cc5de54b 100644
--- a/packages/frontend-core/src/utils/utils.js
+++ b/packages/frontend-core/src/utils/utils.ts
@@ -1,8 +1,10 @@
 import { makePropSafe as safe } from "@budibase/string-templates"
 import { Helpers } from "@budibase/bbui"
 import { cloneDeep } from "lodash"
+import { SearchFilterGroup, UISearchFilter } from "@budibase/types"
 
-export const sleep = ms => new Promise(resolve => setTimeout(resolve, ms))
+export const sleep = (ms: number) =>
+  new Promise(resolve => setTimeout(resolve, ms))
 
 /**
  * Utility to wrap an async function and ensure all invocations happen
@@ -10,12 +12,18 @@ export const sleep = ms => new Promise(resolve => setTimeout(resolve, ms))
  * @param fn the async function to run
  * @return {Function} a sequential version of the function
  */
-export const sequential = fn => {
-  let queue = []
-  return (...params) => {
-    return new Promise((resolve, reject) => {
+export const sequential = <
+  TReturn,
+  TFunction extends (...args: any[]) => Promise<TReturn>
+>(
+  fn: TFunction
+): TFunction => {
+  let queue: (() => Promise<void>)[] = []
+  const result = (...params: Parameters<TFunction>) => {
+    return new Promise<TReturn>((resolve, reject) => {
       queue.push(async () => {
-        let data, error
+        let data: TReturn | undefined
+        let error: unknown
         try {
           data = await fn(...params)
         } catch (err) {
@@ -28,7 +36,7 @@ export const sequential = fn => {
         if (error) {
           reject(error)
         } else {
-          resolve(data)
+          resolve(data!)
         }
       })
       if (queue.length === 1) {
@@ -36,6 +44,7 @@ export const sequential = fn => {
       }
     })
   }
+  return result as TFunction
 }
 
 /**
@@ -45,9 +54,9 @@ export const sequential = fn => {
  * @param minDelay the minimum delay between invocations
  * @returns a debounced version of the callback
  */
-export const debounce = (callback, minDelay = 1000) => {
-  let timeout
-  return async (...params) => {
+export const debounce = (callback: Function, minDelay = 1000) => {
+  let timeout: ReturnType<typeof setTimeout>
+  return async (...params: any[]) => {
     return new Promise(resolve => {
       if (timeout) {
         clearTimeout(timeout)
@@ -70,11 +79,11 @@ export const debounce = (callback, minDelay = 1000) => {
  * @param minDelay
  * @returns {Function} a throttled version function
  */
-export const throttle = (callback, minDelay = 1000) => {
-  let lastParams
+export const throttle = (callback: Function, minDelay = 1000) => {
+  let lastParams: any[]
   let stalled = false
   let pending = false
-  const invoke = (...params) => {
+  const invoke = (...params: any[]) => {
     lastParams = params
     if (stalled) {
       pending = true
@@ -98,10 +107,10 @@ export const throttle = (callback, minDelay = 1000) => {
  * @param callback the function to run
  * @returns {Function}
  */
-export const domDebounce = callback => {
+export const domDebounce = (callback: Function) => {
   let active = false
-  let lastParams
-  return (...params) => {
+  let lastParams: any[]
+  return (...params: any[]) => {
     lastParams = params
     if (!active) {
       active = true
@@ -119,7 +128,17 @@ export const domDebounce = callback => {
  *
  * @param {any} props
  * */
-export const buildFormBlockButtonConfig = props => {
+export const buildFormBlockButtonConfig = (props?: {
+  _id?: string
+  actionType?: string
+  dataSource?: { resourceId: string }
+  notificationOverride?: boolean
+  actionUrl?: string
+  showDeleteButton?: boolean
+  deleteButtonLabel?: string
+  showSaveButton?: boolean
+  saveButtonLabel?: string
+}) => {
   const {
     _id,
     actionType,
@@ -227,7 +246,11 @@ export const buildFormBlockButtonConfig = props => {
 
   const defaultButtons = []
 
-  if (["Update", "Create"].includes(actionType) && showSaveButton !== false) {
+  if (
+    actionType &&
+    ["Update", "Create"].includes(actionType) &&
+    showSaveButton !== false
+  ) {
     defaultButtons.push({
       text: saveText || "Save",
       _id: Helpers.uuid(),
@@ -251,7 +274,13 @@ export const buildFormBlockButtonConfig = props => {
   return defaultButtons
 }
 
-export const buildMultiStepFormBlockDefaultProps = props => {
+export const buildMultiStepFormBlockDefaultProps = (props?: {
+  _id: string
+  stepCount: number
+  currentStep: number
+  actionType: string
+  dataSource: { resourceId: string }
+}) => {
   const { _id, stepCount, currentStep, actionType, dataSource } = props || {}
 
   // Sanity check
@@ -361,7 +390,7 @@ export const buildMultiStepFormBlockDefaultProps = props => {
  * @param {Object} filter UI filter
  * @returns {Object} parsed filter
  */
-export function parseFilter(filter) {
+export function parseFilter(filter: UISearchFilter) {
   if (!filter?.groups) {
     return filter
   }
@@ -369,13 +398,13 @@ export function parseFilter(filter) {
   const update = cloneDeep(filter)
 
   update.groups = update.groups
-    .map(group => {
-      group.filters = group.filters.filter(filter => {
+    ?.map(group => {
+      group.filters = group.filters?.filter((filter: any) => {
         return filter.field && filter.operator
       })
-      return group.filters.length ? group : null
+      return group.filters?.length ? group : null
     })
-    .filter(group => group)
+    .filter((group): group is SearchFilterGroup => !!group)
 
   return update
 }