diff --git a/packages/botonic-core/index.d.ts b/packages/botonic-core/index.d.ts
index f4fad009e3..6ca3181381 100644
--- a/packages/botonic-core/index.d.ts
+++ b/packages/botonic-core/index.d.ts
@@ -18,7 +18,6 @@ export interface Input {
   entities?: any
 }
 
-
 export interface SessionUser {
   id: string
   // login
@@ -45,10 +44,16 @@ export interface Session {
 }
 
 type StringMatcher = RegExp | string | ((data: string) => boolean)
-type ParamsMatcher = { [key: string]: string } | ((params: { [key: string]: string }) => boolean)
+type ParamsMatcher =
+  | { [key: string]: string }
+  | ((params: { [key: string]: string }) => boolean)
 type SessionMatcher = (session: Session) => boolean
 type InputMatcher = (input: Input) => boolean
-type RouteMatcher = StringMatcher | ParamsMatcher| SessionMatcher | InputMatcher
+type RouteMatcher =
+  | StringMatcher
+  | ParamsMatcher
+  | SessionMatcher
+  | InputMatcher
 
 export interface Route {
   path?: StringMatcher
@@ -80,6 +85,7 @@ export class HandOffBuilder {
   withAgentEmail(email: string): HandOffBuilder
   withNoteURL(note: string): HandOffBuilder
   withCaseInfoURL(caseInfo: string): HandOffBuilder
+  withShadowing(shadowing?: boolean): HandOffBuilder
 
   handOff(): Promise<void>
 }
@@ -118,6 +124,13 @@ export declare function getAvailableAgents(
   session: Session
 ): Promise<{ agents: HubtypeAgentsInfo[] }>
 
+export declare function cancelHandoff(
+  session: Session,
+  typification?: string
+): void
+
+export declare function deleteUser(session: Session): void
+
 export interface BotRequest {
   input: Input
   session: Session
@@ -176,8 +189,18 @@ export class CoreBot {
 // Debug
 
 export class RouteInspector {
-  routeMatched(route: Route, routeKey: string, routeValue: RouteMatcher, input: Input): void;
-  routeNotMatched(route: Route, routeKey: string, routeValue: RouteMatcher, input: Input): void;
+  routeMatched(
+    route: Route,
+    routeKey: string,
+    routeValue: RouteMatcher,
+    input: Input
+  ): void
+  routeNotMatched(
+    route: Route,
+    routeKey: string,
+    routeValue: RouteMatcher,
+    input: Input
+  ): void
 }
 
 export class FocusRouteInspector extends RouteInspector {
@@ -185,11 +208,10 @@ export class FocusRouteInspector extends RouteInspector {
   focusOnlyOnMatches(): FocusRouteInspector
 }
 
-export class LogRouteInspector extends FocusRouteInspector {
-}
+export class LogRouteInspector extends FocusRouteInspector {}
 
 export class Inspector {
-  constructor(routeInspector: RouteInspector | undefined);
+  constructor(routeInspector: RouteInspector | undefined)
 
-  getRouteInspector(): RouteInspector;
+  getRouteInspector(): RouteInspector
 }
diff --git a/packages/botonic-core/package.json b/packages/botonic-core/package.json
index aab03565b8..7b295aee05 100644
--- a/packages/botonic-core/package.json
+++ b/packages/botonic-core/package.json
@@ -7,7 +7,7 @@
     "test": "../../node_modules/.bin/jest --coverage",
     "prepare": "node ../../preinstall.js",
     "lint": "npm run lint_ci -- --fix",
-    "lint_ci": "../../node_modules/.bin/eslint_d --cache --quiet 'src/**/*.js*'",
+    "lint_ci": "../../node_modules/.bin/eslint_d --cache --quiet 'src/**/*.js*' '**/*.d.ts'",
     "build": "rm -rf lib && babel src --out-dir lib --source-maps --copy-files"
   },
   "repository": {
diff --git a/packages/botonic-core/src/handoff.js b/packages/botonic-core/src/handoff.js
index fd1130e228..d8a57e0caf 100644
--- a/packages/botonic-core/src/handoff.js
+++ b/packages/botonic-core/src/handoff.js
@@ -49,6 +49,11 @@ export class HandOffBuilder {
     return this
   }
 
+  withShadowing(shadowing = true) {
+    this._shadowing = shadowing
+    return this
+  }
+
   async handOff() {
     return _humanHandOff(
       this._session,
@@ -56,7 +61,8 @@ export class HandOffBuilder {
       this._onFinish,
       this._email,
       this._caseInfo,
-      this._note
+      this._note,
+      this._shadowing
     )
   }
 }
@@ -87,7 +93,8 @@ async function _humanHandOff(
   onFinish,
   agentEmail = '',
   caseInfo = '',
-  note = ''
+  note = '',
+  shadowing = false
 ) {
   const params = {}
   if (!queueNameOrId && agentEmail) {
@@ -105,6 +112,9 @@ async function _humanHandOff(
   if (note) {
     params.note = note
   }
+  if (shadowing) {
+    params.shadowing = shadowing
+  }
 
   if (onFinish) {
     params.on_finish = onFinish
@@ -151,3 +161,13 @@ export async function getAvailableAgents(session) {
   })
   return resp.data
 }
+
+export function cancelHandoff(session, typification = null) {
+  let action = 'discard_case'
+  if (typification) action = `${action}:${JSON.stringify({ typification })}`
+  session._botonic_action = action
+}
+
+export function deleteUser(session) {
+  session._botonic_action = `delete_user`
+}
diff --git a/packages/botonic-core/src/index.js b/packages/botonic-core/src/index.js
index ef63e897a5..97edd9314a 100644
--- a/packages/botonic-core/src/index.js
+++ b/packages/botonic-core/src/index.js
@@ -6,6 +6,8 @@ export {
   HandOffBuilder,
   storeCaseRating,
   getAvailableAgents,
+  cancelHandoff,
+  deleteUser,
 } from './handoff'
 export { getNLU } from './nlu'
 export { isBrowser, isNode, isMobile, params2queryString } from './utils'
diff --git a/packages/botonic-react/package.json b/packages/botonic-react/package.json
index 6d7a78bdcb..9ca629e3db 100644
--- a/packages/botonic-react/package.json
+++ b/packages/botonic-react/package.json
@@ -9,7 +9,7 @@
     "build": "rm -rf lib && babel src --out-dir lib --source-maps --copy-files",
     "lint": "npm run lint_core -- --fix",
     "lint_ci": "npm run lint_core",
-    "lint_core": "../../node_modules/.bin/eslint_d --cache --quiet 'src/**/*.js*' 'src/**/*.d.ts' 'tests/**/*.js' 'tests/**/*.jsx'"
+    "lint_core": "../../node_modules/.bin/eslint_d --cache --quiet 'src/**/*.js*' '**/*.d.ts' 'tests/**/*.js' 'tests/**/*.jsx'"
   },
   "sideEffects": [
     "*.(scss|css)"