diff --git a/packages/elastic-datemath/README.md b/packages/elastic-datemath/README.md
new file mode 100644
index 0000000000000..a8dcd9f6721cb
--- /dev/null
+++ b/packages/elastic-datemath/README.md
@@ -0,0 +1,5 @@
+# datemath
+
+Datemath string parser used in Kibana. This is published to NPM for use in a limited number of locations outside of Kibana, but is not regularly updated and may get seriously out of date.
+
+If you file an issue in elastic/kibana we can probably update it for you if needed, though you probably shouldn't depend on this package for anything important.
diff --git a/packages/elastic-datemath/index.d.ts b/packages/elastic-datemath/index.d.ts
deleted file mode 100644
index 319c598e3e4ab..0000000000000
--- a/packages/elastic-datemath/index.d.ts
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * Licensed to Elasticsearch B.V. under one or more contributor
- * license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright
- * ownership. Elasticsearch B.V. licenses this file to you under
- * the Apache License, Version 2.0 (the "License"); you may
- * not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *    http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-
-import moment from 'moment';
-export type Unit = 'ms' | 's' | 'm' | 'h' | 'd' | 'w' | 'M' | 'y';
-
-declare const datemath: {
-  unitsMap: {
-    [k in Unit]: {
-      weight: number;
-      type: 'calendar' | 'fixed' | 'mixed';
-      base: number;
-    };
-  };
-  units: Unit[];
-  unitsAsc: Unit[];
-  unitsDesc: Unit[];
-
-  /**
-   * Parses a string into a moment object. The string can be something like "now - 15m".
-   * @param options.forceNow If this optional parameter is supplied, "now" will be treated as this
-   * date, rather than the real "now".
-   */
-  parse(
-    input: string,
-    options?: {
-      roundUp?: boolean;
-      forceNow?: Date;
-      momentInstance?: typeof moment;
-    }
-  ): moment.Moment | undefined;
-};
-
-// eslint-disable-next-line import/no-default-export
-export default datemath;
diff --git a/packages/elastic-datemath/package.json b/packages/elastic-datemath/package.json
index 0d8f936ae6358..4dc9c4f24d567 100644
--- a/packages/elastic-datemath/package.json
+++ b/packages/elastic-datemath/package.json
@@ -3,6 +3,10 @@
   "version": "5.0.3",
   "description": "elasticsearch datemath parser, used in kibana",
   "license": "Apache-2.0",
-  "main": "index.js",
-  "typings": "index.d.ts"
+  "main": "./target/index.js",
+  "types": "./target/index.d.ts",
+  "scripts": {
+    "build": "../../node_modules/.bin/tsc",
+    "kbn:bootstrap": "yarn build"
+  }
 }
\ No newline at end of file
diff --git a/packages/elastic-datemath/readme.md b/packages/elastic-datemath/readme.md
deleted file mode 100644
index f7de9627e6d69..0000000000000
--- a/packages/elastic-datemath/readme.md
+++ /dev/null
@@ -1,3 +0,0 @@
-# datemath
-
-Datemath string parser used in Kibana
diff --git a/packages/elastic-datemath/index.test.js b/packages/elastic-datemath/src/index.test.js
similarity index 100%
rename from packages/elastic-datemath/index.test.js
rename to packages/elastic-datemath/src/index.test.js
diff --git a/packages/elastic-datemath/index.js b/packages/elastic-datemath/src/index.ts
similarity index 71%
rename from packages/elastic-datemath/index.js
rename to packages/elastic-datemath/src/index.ts
index 8a69d251d057d..a513af800b7c3 100644
--- a/packages/elastic-datemath/index.js
+++ b/packages/elastic-datemath/src/index.ts
@@ -17,9 +17,18 @@
  * under the License.
  */
 
-const moment = require('moment');
+import moment from 'moment';
+
+export type Unit = 'ms' | 's' | 'm' | 'h' | 'd' | 'w' | 'M' | 'y';
+export type UnitsMap = {
+  [k in Unit]: {
+    weight: number;
+    type: 'calendar' | 'fixed' | 'mixed';
+    base: number;
+  };
+};
 
-const unitsMap = {
+export const unitsMap: UnitsMap = {
   ms: { weight: 1, type: 'fixed', base: 1 },
   s: { weight: 2, type: 'fixed', base: 1000 },
   m: { weight: 3, type: 'mixed', base: 1000 * 60 },
@@ -30,13 +39,14 @@ const unitsMap = {
   // q: { weight: 8, type: 'calendar' }, // TODO: moment duration does not support quarter
   y: { weight: 9, type: 'calendar', base: NaN },
 };
-const units = Object.keys(unitsMap).sort((a, b) => unitsMap[b].weight - unitsMap[a].weight);
-const unitsDesc = [...units];
-const unitsAsc = [...units].reverse();
-
-const isDate = (d) => Object.prototype.toString.call(d) === '[object Date]';
+export const units: Unit[] = Object.keys(unitsMap).sort(
+  (a, b) => unitsMap[b as Unit].weight - unitsMap[a as Unit].weight
+) as Unit[];
+export const unitsDesc: Unit[] = [...units] as Unit[];
+export const unitsAsc: Unit[] = [...units].reverse() as Unit[];
 
-const isValidDate = (d) => isDate(d) && !isNaN(d.valueOf());
+const isDate = (d: string) => Object.prototype.toString.call(d) === '[object Date]';
+const isValidDate = (d: string) => isDate(d) && !isNaN(d.valueOf() as any);
 
 /*
  * This is a simplified version of elasticsearch's date parser.
@@ -44,11 +54,17 @@ const isValidDate = (d) => isDate(d) && !isNaN(d.valueOf());
  * will be done using this (and its locale settings) instead of the one bundled
  * with this library.
  */
-function parse(text, { roundUp = false, momentInstance = moment, forceNow } = {}) {
+export function parse(
+  input: string,
+  options: { roundUp?: boolean; momentInstance?: typeof moment; forceNow?: Date } = {}
+) {
+  const text = input;
+  const { roundUp = false, momentInstance = moment, forceNow } = options;
+
   if (!text) return undefined;
   if (momentInstance.isMoment(text)) return text;
   if (isDate(text)) return momentInstance(text);
-  if (forceNow !== undefined && !isValidDate(forceNow)) {
+  if (forceNow !== undefined && !isValidDate(forceNow as any)) {
     throw new Error('forceNow must be a valid Date');
   }
 
@@ -80,7 +96,7 @@ function parse(text, { roundUp = false, momentInstance = moment, forceNow } = {}
   return parseDateMath(mathString, time, roundUp);
 }
 
-function parseDateMath(mathString, time, roundUp) {
+function parseDateMath(mathString: string, time: moment.Moment, roundUp: boolean) {
   const dateTime = time;
   const len = mathString.length;
   let i = 0;
@@ -89,7 +105,7 @@ function parseDateMath(mathString, time, roundUp) {
     const c = mathString.charAt(i++);
     let type;
     let num;
-    let unit;
+    let unit: Unit;
 
     if (c === '/') {
       type = 0;
@@ -101,13 +117,13 @@ function parseDateMath(mathString, time, roundUp) {
       return;
     }
 
-    if (isNaN(mathString.charAt(i))) {
+    if (isNaN(mathString.charAt(i) as any)) {
       num = 1;
     } else if (mathString.length === 2) {
       num = mathString.charAt(i);
     } else {
       const numFrom = i;
-      while (!isNaN(mathString.charAt(i))) {
+      while (!isNaN(mathString.charAt(i) as any)) {
         i++;
         if (i >= len) return;
       }
@@ -121,7 +137,7 @@ function parseDateMath(mathString, time, roundUp) {
       }
     }
 
-    unit = mathString.charAt(i++);
+    unit = mathString.charAt(i++) as Unit;
 
     // append additional characters in the unit
     for (let j = i; j < len; j++) {
@@ -138,12 +154,12 @@ function parseDateMath(mathString, time, roundUp) {
       return;
     } else {
       if (type === 0) {
-        if (roundUp) dateTime.endOf(unit);
-        else dateTime.startOf(unit);
+        if (roundUp) dateTime.endOf(unit as any);
+        else dateTime.startOf(unit as any);
       } else if (type === 1) {
-        dateTime.add(num, unit);
+        dateTime.add(num as any, unit);
       } else if (type === 2) {
-        dateTime.subtract(num, unit);
+        dateTime.subtract(num as any, unit);
       }
     }
   }
@@ -151,8 +167,9 @@ function parseDateMath(mathString, time, roundUp) {
   return dateTime;
 }
 
-module.exports = {
-  parse: parse,
+// eslint-disable-next-line import/no-default-export
+export default {
+  parse,
   unitsMap: Object.freeze(unitsMap),
   units: Object.freeze(units),
   unitsAsc: Object.freeze(unitsAsc),
diff --git a/packages/elastic-datemath/tsconfig.json b/packages/elastic-datemath/tsconfig.json
index cbfe1e8047433..6f04bee983a9e 100644
--- a/packages/elastic-datemath/tsconfig.json
+++ b/packages/elastic-datemath/tsconfig.json
@@ -1,9 +1,17 @@
 {
   "extends": "../../tsconfig.base.json",
   "compilerOptions": {
-    "tsBuildInfoFile": "../../build/tsbuildinfo/packages/elastic-datemath"
+    "incremental": false,
+    "outDir": "./target",
+    "declaration": true,
+    "declarationMap": true,
+    "sourceMap": true,
+    "sourceRoot": "../../../../packages/elastic-datemath/src",
+    "types": [
+      "node"
+    ]
   },
   "include": [
-    "index.d.ts"
+    "src/index.ts"
   ]
 }
diff --git a/packages/kbn-ace/package.json b/packages/kbn-ace/package.json
index f7ca76b35e7c2..30f37b4786f36 100644
--- a/packages/kbn-ace/package.json
+++ b/packages/kbn-ace/package.json
@@ -3,6 +3,7 @@
   "version": "1.0.0",
   "private": true,
   "main": "./target/index.js",
+  "types": "./target/index.d.ts",
   "license": "SSPL-1.0 OR Elastic License 2.0",
   "scripts": {
     "build": "node ./scripts/build.js",
diff --git a/packages/kbn-ace/tsconfig.json b/packages/kbn-ace/tsconfig.json
index 6d3f433c6a6d1..9eef1ec56c6a2 100644
--- a/packages/kbn-ace/tsconfig.json
+++ b/packages/kbn-ace/tsconfig.json
@@ -1,13 +1,15 @@
 {
   "extends": "../../tsconfig.base.json",
   "compilerOptions": {
+    "incremental": false,
     "outDir": "./target",
     "declaration": true,
+    "declarationMap": true,
     "sourceMap": true,
+    "sourceRoot": "../../../../packages/kbn-ace/src",
     "types": [
-      "jest",
       "node"
-    ]
+    ],
   },
   "include": [
     "src/**/*"
diff --git a/packages/kbn-analytics/tsconfig.json b/packages/kbn-analytics/tsconfig.json
index 861e0204a31a2..c2e579e7fdbea 100644
--- a/packages/kbn-analytics/tsconfig.json
+++ b/packages/kbn-analytics/tsconfig.json
@@ -1,20 +1,19 @@
 {
   "extends": "../../tsconfig.base.json",
   "compilerOptions": {
-    "declaration": true,
-    "emitDeclarationOnly": true,
+    "incremental": false,
     "outDir": "./target/types",
     "stripInternal": true,
+    "emitDeclarationOnly": true,
+    "declaration": true,
     "declarationMap": true,
+    "sourceMap": true,
+    "sourceRoot": "../../../../../packages/kbn-analytics/src",
     "types": [
-      "jest",
       "node"
     ]
   },
   "include": [
     "src/**/*"
-  ],
-  "exclude": [
-    "target"
   ]
 }
diff --git a/packages/kbn-apm-config-loader/__fixtures__/config.yml b/packages/kbn-apm-config-loader/src/__fixtures__/config.yml
similarity index 100%
rename from packages/kbn-apm-config-loader/__fixtures__/config.yml
rename to packages/kbn-apm-config-loader/src/__fixtures__/config.yml
diff --git a/packages/kbn-apm-config-loader/__fixtures__/config_flat.yml b/packages/kbn-apm-config-loader/src/__fixtures__/config_flat.yml
similarity index 100%
rename from packages/kbn-apm-config-loader/__fixtures__/config_flat.yml
rename to packages/kbn-apm-config-loader/src/__fixtures__/config_flat.yml
diff --git a/packages/kbn-apm-config-loader/__fixtures__/en_var_ref_config.yml b/packages/kbn-apm-config-loader/src/__fixtures__/en_var_ref_config.yml
similarity index 100%
rename from packages/kbn-apm-config-loader/__fixtures__/en_var_ref_config.yml
rename to packages/kbn-apm-config-loader/src/__fixtures__/en_var_ref_config.yml
diff --git a/packages/kbn-apm-config-loader/__fixtures__/one.yml b/packages/kbn-apm-config-loader/src/__fixtures__/one.yml
similarity index 100%
rename from packages/kbn-apm-config-loader/__fixtures__/one.yml
rename to packages/kbn-apm-config-loader/src/__fixtures__/one.yml
diff --git a/packages/kbn-apm-config-loader/__fixtures__/two.yml b/packages/kbn-apm-config-loader/src/__fixtures__/two.yml
similarity index 100%
rename from packages/kbn-apm-config-loader/__fixtures__/two.yml
rename to packages/kbn-apm-config-loader/src/__fixtures__/two.yml
diff --git a/packages/kbn-apm-config-loader/src/utils/read_config.test.ts b/packages/kbn-apm-config-loader/src/utils/read_config.test.ts
index 16fbb5ce7aed8..2838738c0ab6c 100644
--- a/packages/kbn-apm-config-loader/src/utils/read_config.test.ts
+++ b/packages/kbn-apm-config-loader/src/utils/read_config.test.ts
@@ -9,7 +9,7 @@
 import { relative, resolve } from 'path';
 import { getConfigFromFiles } from './read_config';
 
-const fixtureFile = (name: string) => resolve(__dirname, '..', '..', '__fixtures__', name);
+const fixtureFile = (name: string) => resolve(__dirname, '..', '__fixtures__', name);
 
 test('reads single yaml from file system and parses to json', () => {
   const config = getConfigFromFiles([fixtureFile('config.yml')]);
diff --git a/packages/kbn-apm-config-loader/tsconfig.json b/packages/kbn-apm-config-loader/tsconfig.json
index ba00ddfa6adb6..250195785b931 100644
--- a/packages/kbn-apm-config-loader/tsconfig.json
+++ b/packages/kbn-apm-config-loader/tsconfig.json
@@ -1,12 +1,19 @@
 {
   "extends": "../../tsconfig.base.json",
   "compilerOptions": {
-    "declaration": true,
+    "incremental": false,
     "outDir": "./target",
     "stripInternal": false,
+    "declaration": true,
     "declarationMap": true,
-    "types": ["jest", "node"]
+    "sourceMap": true,
+    "sourceRoot": "../../../../packages/kbn-apm-config-loader/src",
+    "types": [
+      "jest",
+      "node"
+    ]
   },
-  "include": ["./src/**/*.ts"],
-  "exclude": ["target"]
+  "include": [
+    "src/**/*.ts"
+  ]
 }
diff --git a/packages/kbn-apm-utils/tsconfig.json b/packages/kbn-apm-utils/tsconfig.json
index e1f79b5ef394d..e08769aab6543 100644
--- a/packages/kbn-apm-utils/tsconfig.json
+++ b/packages/kbn-apm-utils/tsconfig.json
@@ -1,18 +1,18 @@
 {
   "extends": "../../tsconfig.base.json",
   "compilerOptions": {
-    "declaration": true,
+    "incremental": false,
     "outDir": "./target",
     "stripInternal": false,
+    "declaration": true,
     "declarationMap": true,
+    "sourceMap": true,
+    "sourceRoot": "../../../../packages/kbn-apm-utils/src",
     "types": [
       "node"
     ]
   },
   "include": [
     "./src/**/*.ts"
-  ],
-  "exclude": [
-    "target"
   ]
 }
diff --git a/packages/kbn-cli-dev-mode/tsconfig.json b/packages/kbn-cli-dev-mode/tsconfig.json
index b2bdaf8ceea36..4436d27dbff88 100644
--- a/packages/kbn-cli-dev-mode/tsconfig.json
+++ b/packages/kbn-cli-dev-mode/tsconfig.json
@@ -1,11 +1,18 @@
 {
   "extends": "../../tsconfig.base.json",
   "compilerOptions": {
-    "declaration": true,
+    "incremental": false,
     "outDir": "./target",
+    "declaration": true,
     "declarationMap": true,
-    "types": ["jest", "node"]
+    "sourceMap": true,
+    "sourceRoot": "../../../../packages/kbn-cli-dev-mode/src",
+    "types": [
+      "jest",
+      "node"
+    ]
   },
-  "include": ["./src/**/*.ts"],
-  "exclude": ["target"]
+  "include": [
+    "./src/**/*.ts"
+  ],
 }
diff --git a/packages/kbn-config-schema/tsconfig.json b/packages/kbn-config-schema/tsconfig.json
index 6a268f2e7c016..d33683acded16 100644
--- a/packages/kbn-config-schema/tsconfig.json
+++ b/packages/kbn-config-schema/tsconfig.json
@@ -1,21 +1,21 @@
 {
   "extends": "../../tsconfig.base.json",
   "compilerOptions": {
-    "declaration": true,
-    "declarationDir": "./target/types",
+    "incremental": false,
     "outDir": "./target/out",
+    "declarationDir": "./target/types",
     "stripInternal": true,
+    "declaration": true,
     "declarationMap": true,
+    "sourceMap": true,
+    "sourceRoot": "../../../../../packages/kbn-config-schema/src",
     "types": [
       "jest",
       "node"
     ]
   },
   "include": [
-    "./types/joi.d.ts",
-    "./src/**/*.ts"
-  ],
-  "exclude": [
-    "target"
+    "types/joi.d.ts",
+    "src/**/*.ts"
   ]
 }
diff --git a/packages/kbn-config/__fixtures__/config.yml b/packages/kbn-config/src/__fixtures__/config.yml
similarity index 100%
rename from packages/kbn-config/__fixtures__/config.yml
rename to packages/kbn-config/src/__fixtures__/config.yml
diff --git a/packages/kbn-config/__fixtures__/config_flat.yml b/packages/kbn-config/src/__fixtures__/config_flat.yml
similarity index 100%
rename from packages/kbn-config/__fixtures__/config_flat.yml
rename to packages/kbn-config/src/__fixtures__/config_flat.yml
diff --git a/packages/kbn-config/__fixtures__/en_var_ref_config.yml b/packages/kbn-config/src/__fixtures__/en_var_ref_config.yml
similarity index 100%
rename from packages/kbn-config/__fixtures__/en_var_ref_config.yml
rename to packages/kbn-config/src/__fixtures__/en_var_ref_config.yml
diff --git a/packages/kbn-config/__fixtures__/one.yml b/packages/kbn-config/src/__fixtures__/one.yml
similarity index 100%
rename from packages/kbn-config/__fixtures__/one.yml
rename to packages/kbn-config/src/__fixtures__/one.yml
diff --git a/packages/kbn-config/__fixtures__/two.yml b/packages/kbn-config/src/__fixtures__/two.yml
similarity index 100%
rename from packages/kbn-config/__fixtures__/two.yml
rename to packages/kbn-config/src/__fixtures__/two.yml
diff --git a/packages/kbn-config/src/raw/read_config.test.ts b/packages/kbn-config/src/raw/read_config.test.ts
index 3b56c69098d2c..d428fa6b0a2a1 100644
--- a/packages/kbn-config/src/raw/read_config.test.ts
+++ b/packages/kbn-config/src/raw/read_config.test.ts
@@ -9,7 +9,7 @@
 import { relative, resolve } from 'path';
 import { getConfigFromFiles } from './read_config';
 
-const fixtureFile = (name: string) => resolve(`${__dirname}/../../__fixtures__/${name}`);
+const fixtureFile = (name: string) => resolve(`${__dirname}/../__fixtures__/${name}`);
 
 test('reads single yaml from file system and parses to json', () => {
   const config = getConfigFromFiles([fixtureFile('config.yml')]);
diff --git a/packages/kbn-config/tsconfig.json b/packages/kbn-config/tsconfig.json
index ba00ddfa6adb6..4e1bf573f488a 100644
--- a/packages/kbn-config/tsconfig.json
+++ b/packages/kbn-config/tsconfig.json
@@ -1,12 +1,22 @@
 {
   "extends": "../../tsconfig.base.json",
   "compilerOptions": {
-    "declaration": true,
+    "incremental": false,
     "outDir": "./target",
     "stripInternal": false,
+    "declaration": true,
     "declarationMap": true,
-    "types": ["jest", "node"]
+    "sourceMap": true,
+    "sourceRoot": "../../../../packages/kbn-config/src",
+    "types": [
+      "jest",
+      "node"
+    ]
   },
-  "include": ["./src/**/*.ts"],
-  "exclude": ["target"]
+  "include": [
+    "src/**/*.ts"
+  ],
+  "exclude": [
+    "**/__fixtures__/**/*"
+  ]
 }
diff --git a/packages/kbn-crypto/package.json b/packages/kbn-crypto/package.json
index 6c7b3f3b0c719..7e26b96218319 100644
--- a/packages/kbn-crypto/package.json
+++ b/packages/kbn-crypto/package.json
@@ -4,6 +4,7 @@
   "private": true,
   "license": "SSPL-1.0 OR Elastic License 2.0",
   "main": "./target/index.js",
+  "types": "./target/index.d.ts",
   "scripts": {
     "build": "../../node_modules/.bin/tsc",
     "kbn:bootstrap": "yarn build",
diff --git a/packages/kbn-crypto/tsconfig.json b/packages/kbn-crypto/tsconfig.json
index e9dd6313e6f79..5005152cac754 100644
--- a/packages/kbn-crypto/tsconfig.json
+++ b/packages/kbn-crypto/tsconfig.json
@@ -1,9 +1,12 @@
 {
   "extends": "../../tsconfig.base.json",
   "compilerOptions": {
-    "outDir": "target",
+    "incremental": false,
+    "outDir": "./target",
     "declaration": true,
-    "declarationMap": true
+    "declarationMap": true,
+    "sourceMap": true,
+    "sourceRoot": "../../../../packages/kbn-crypto/src"
   },
   "include": [
     "src/**/*"
diff --git a/packages/kbn-dev-utils/package.json b/packages/kbn-dev-utils/package.json
index 7a2c3ce45a57d..e1990fca4e0bb 100644
--- a/packages/kbn-dev-utils/package.json
+++ b/packages/kbn-dev-utils/package.json
@@ -4,6 +4,7 @@
   "private": true,
   "license": "SSPL-1.0 OR Elastic License 2.0",
   "main": "./target/index.js",
+  "types": "./target/index.d.ts",
   "scripts": {
     "build": "../../node_modules/.bin/tsc",
     "kbn:bootstrap": "yarn build",
diff --git a/packages/kbn-dev-utils/tsconfig.json b/packages/kbn-dev-utils/tsconfig.json
index 1c6c671d0b768..65536c576b679 100644
--- a/packages/kbn-dev-utils/tsconfig.json
+++ b/packages/kbn-dev-utils/tsconfig.json
@@ -1,10 +1,18 @@
 {
   "extends": "../../tsconfig.base.json",
   "compilerOptions": {
+    "incremental": false,
     "outDir": "target",
+    "stripInternal": false,
     "target": "ES2019",
     "declaration": true,
-    "declarationMap": true
+    "declarationMap": true,
+    "sourceMap": true,
+    "sourceRoot": "../../../../packages/kbn-dev-utils/src",
+    "types": [
+      "jest",
+      "node"
+    ]
   },
   "include": [
     "src/**/*"
diff --git a/packages/kbn-docs-utils/package.json b/packages/kbn-docs-utils/package.json
index 089732e9e6b40..26a7fa0e8c957 100644
--- a/packages/kbn-docs-utils/package.json
+++ b/packages/kbn-docs-utils/package.json
@@ -4,6 +4,7 @@
   "license": "SSPL-1.0 OR Elastic License 2.0",
   "private": "true",
   "main": "target/index.js",
+  "types": "target/index.d.ts",
   "kibana": {
     "devOnly": true
   },
diff --git a/packages/kbn-docs-utils/tsconfig.json b/packages/kbn-docs-utils/tsconfig.json
index 3c683f487b9f2..6f4a6fa2af8a5 100644
--- a/packages/kbn-docs-utils/tsconfig.json
+++ b/packages/kbn-docs-utils/tsconfig.json
@@ -1,10 +1,17 @@
 {
   "extends": "../../tsconfig.base.json",
   "compilerOptions": {
+    "incremental": false,
     "outDir": "./target",
+    "target": "ES2019",
     "declaration": true,
+    "declarationMap": true,
     "sourceMap": true,
-    "target": "ES2019"
+    "sourceRoot": "../../../../packages/kbn-docs-utils/src",
+    "types": [
+      "jest",
+      "node"
+    ]
   },
   "include": [
     "src/**/*"
diff --git a/packages/kbn-es-archiver/package.json b/packages/kbn-es-archiver/package.json
index 03ecee34be7e2..047d1dd675d26 100644
--- a/packages/kbn-es-archiver/package.json
+++ b/packages/kbn-es-archiver/package.json
@@ -4,6 +4,7 @@
   "license": "SSPL-1.0 OR Elastic License 2.0",
   "private": "true",
   "main": "target/index.js",
+  "types": "target/index.d.ts",
   "kibana": {
     "devOnly": true
   },
diff --git a/packages/kbn-es-archiver/tsconfig.json b/packages/kbn-es-archiver/tsconfig.json
index 02209a29e5817..0950cd39d0bee 100644
--- a/packages/kbn-es-archiver/tsconfig.json
+++ b/packages/kbn-es-archiver/tsconfig.json
@@ -1,10 +1,17 @@
 {
   "extends": "../../tsconfig.base.json",
   "compilerOptions": {
+    "incremental": false,
     "outDir": "./target",
+    "target": "ES2019",
     "declaration": true,
+    "declarationMap": true,
     "sourceMap": true,
-    "target": "ES2019"
+    "sourceRoot": "../../../../packages/kbn-es-archiver/src",
+    "types": [
+      "jest",
+      "node"
+    ]
   },
   "include": [
     "src/**/*"
diff --git a/packages/kbn-i18n/tsconfig.json b/packages/kbn-i18n/tsconfig.json
index c6380f1cde969..9d4cb8c9b0972 100644
--- a/packages/kbn-i18n/tsconfig.json
+++ b/packages/kbn-i18n/tsconfig.json
@@ -1,5 +1,18 @@
 {
   "extends": "../../tsconfig.base.json",
+  "compilerOptions": {
+    "incremental": false,
+    "outDir": "./target/types",
+    "emitDeclarationOnly": true,
+    "declaration": true,
+    "declarationMap": true,
+    "sourceMap": true,
+    "sourceRoot": "../../../../../packages/kbn-i18n/src",
+    "types": [
+      "jest",
+      "node"
+    ]
+  },
   "include": [
     "src/**/*.ts",
     "src/**/*.tsx",
@@ -7,15 +20,6 @@
     "types/intl_relativeformat.d.ts"
   ],
   "exclude": [
-    "target"
-  ],
-  "compilerOptions": {
-    "declaration": true,
-    "emitDeclarationOnly": true,
-    "outDir": "./target/types",
-    "types": [
-      "jest",
-      "node"
-    ]
-  }
+    "**/__fixtures__/**/*"
+  ]
 }
diff --git a/packages/kbn-interpreter/common/package.json b/packages/kbn-interpreter/common/package.json
index b569e42220f04..62061138234d9 100644
--- a/packages/kbn-interpreter/common/package.json
+++ b/packages/kbn-interpreter/common/package.json
@@ -1,5 +1,6 @@
 {
   "private": true,
   "main": "../target/common/index.js",
+  "types": "../target/common/index.d.ts",
   "jsnext:main": "../src/common/index.js"
 }
\ No newline at end of file
diff --git a/packages/kbn-legacy-logging/package.json b/packages/kbn-legacy-logging/package.json
index 1e3752eca6755..9450fd39607ea 100644
--- a/packages/kbn-legacy-logging/package.json
+++ b/packages/kbn-legacy-logging/package.json
@@ -4,6 +4,7 @@
   "private": true,
   "license": "SSPL-1.0 OR Elastic License 2.0",
   "main": "./target/index.js",
+  "types": "./target/index.d.ts",
   "scripts": {
     "build": "tsc",
     "kbn:bootstrap": "yarn build",
diff --git a/packages/kbn-legacy-logging/tsconfig.json b/packages/kbn-legacy-logging/tsconfig.json
index 8fd202a2dce8b..5f8d38ec90bcd 100644
--- a/packages/kbn-legacy-logging/tsconfig.json
+++ b/packages/kbn-legacy-logging/tsconfig.json
@@ -1,11 +1,19 @@
 {
   "extends": "../../tsconfig.base.json",
   "compilerOptions": {
+    "incremental": false,
     "outDir": "target",
     "stripInternal": false,
     "declaration": true,
     "declarationMap": true,
-    "types": ["jest", "node"]
+    "sourceMap": true,
+    "sourceRoot": "../../../../packages/kbn-legacy-logging/src",
+    "types": [
+      "jest",
+      "node"
+    ]
   },
-  "include": ["./src/**/*"]
+  "include": [
+    "src/**/*"
+  ]
 }
diff --git a/packages/kbn-logging/package.json b/packages/kbn-logging/package.json
index 8d3ffa09b083e..c7db148c75a2a 100644
--- a/packages/kbn-logging/package.json
+++ b/packages/kbn-logging/package.json
@@ -4,6 +4,7 @@
   "private": true,
   "license": "SSPL-1.0 OR Elastic License 2.0",
   "main": "./target/index.js",
+  "types": "./target/index.d.ts",
   "scripts": {
     "build": "../../node_modules/.bin/tsc",
     "kbn:bootstrap": "yarn build",
diff --git a/packages/kbn-logging/tsconfig.json b/packages/kbn-logging/tsconfig.json
index c55c05de30a52..adec4c1966036 100644
--- a/packages/kbn-logging/tsconfig.json
+++ b/packages/kbn-logging/tsconfig.json
@@ -1,11 +1,19 @@
 {
   "extends": "../../tsconfig.base.json",
   "compilerOptions": {
+    "incremental": false,
     "outDir": "target",
     "stripInternal": false,
     "declaration": true,
     "declarationMap": true,
-    "types": ["jest", "node"]
+    "sourceMap": true,
+    "sourceRoot": "../../../../packages/kbn-logging/src",
+    "types": [
+      "jest",
+      "node"
+    ]
   },
-  "include": ["./src/**/*.ts"]
+  "include": [
+    "src/**/*.ts"
+  ]
 }
diff --git a/packages/kbn-monaco/package.json b/packages/kbn-monaco/package.json
index e99661f8db598..bdf36915bab3a 100644
--- a/packages/kbn-monaco/package.json
+++ b/packages/kbn-monaco/package.json
@@ -3,6 +3,7 @@
   "version": "1.0.0",
   "private": true,
   "main": "./target/index.js",
+  "types": "./target/index.d.ts",
   "license": "SSPL-1.0 OR Elastic License 2.0",
   "scripts": {
     "build": "node ./scripts/build.js",
diff --git a/packages/kbn-monaco/tsconfig.json b/packages/kbn-monaco/tsconfig.json
index 6d3f433c6a6d1..e6ec96b12c6cf 100644
--- a/packages/kbn-monaco/tsconfig.json
+++ b/packages/kbn-monaco/tsconfig.json
@@ -1,9 +1,12 @@
 {
   "extends": "../../tsconfig.base.json",
   "compilerOptions": {
+    "incremental": false,
     "outDir": "./target",
     "declaration": true,
+    "declarationMap": true,
     "sourceMap": true,
+    "sourceRoot": "../../../../packages/kbn-monaco/src",
     "types": [
       "jest",
       "node"
diff --git a/packages/kbn-optimizer/index.d.ts b/packages/kbn-optimizer/index.d.ts
deleted file mode 100644
index 004ac67f4b0c4..0000000000000
--- a/packages/kbn-optimizer/index.d.ts
+++ /dev/null
@@ -1,9 +0,0 @@
-/*
- * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
- * or more contributor license agreements. Licensed under the Elastic License
- * 2.0 and the Server Side Public License, v 1; you may not use this file except
- * in compliance with, at your election, the Elastic License 2.0 or the Server
- * Side Public License, v 1.
- */
-
-export * from './src/index';
diff --git a/packages/kbn-optimizer/package.json b/packages/kbn-optimizer/package.json
index 29e33bf23424b..ac73fbc0fc16a 100644
--- a/packages/kbn-optimizer/package.json
+++ b/packages/kbn-optimizer/package.json
@@ -4,8 +4,9 @@
   "private": true,
   "license": "SSPL-1.0 OR Elastic License 2.0",
   "main": "./target/index.js",
+  "types": "./target/index.d.ts",
   "scripts": {
-    "build": "../../node_modules/.bin/babel src --out-dir target --copy-files --delete-dir-on-start --extensions .ts --ignore *.test.ts --source-maps=inline",
+    "build": "../../node_modules/.bin/tsc",
     "kbn:bootstrap": "yarn build",
     "kbn:watch": "yarn build --watch"
   },
diff --git a/packages/kbn-optimizer/src/integration_tests/basic_optimization.test.ts b/packages/kbn-optimizer/src/integration_tests/basic_optimization.test.ts
index 23b4c09f7a17c..da0a0cb7b75f2 100644
--- a/packages/kbn-optimizer/src/integration_tests/basic_optimization.test.ts
+++ b/packages/kbn-optimizer/src/integration_tests/basic_optimization.test.ts
@@ -16,7 +16,7 @@ import del from 'del';
 import { tap, filter } from 'rxjs/operators';
 import { REPO_ROOT } from '@kbn/utils';
 import { ToolingLog } from '@kbn/dev-utils';
-import { runOptimizer, OptimizerConfig, OptimizerUpdate, logOptimizerState } from '@kbn/optimizer';
+import { runOptimizer, OptimizerConfig, OptimizerUpdate, logOptimizerState } from '../index';
 
 import { allValuesFrom } from '../common';
 
@@ -135,7 +135,7 @@ it('builds expected bundles, saves bundle counts to metadata', async () => {
       <absolute path>/packages/kbn-optimizer/src/__fixtures__/__tmp__/mock_repo/plugins/foo/public/ext.ts,
       <absolute path>/packages/kbn-optimizer/src/__fixtures__/__tmp__/mock_repo/plugins/foo/public/index.ts,
       <absolute path>/packages/kbn-optimizer/src/__fixtures__/__tmp__/mock_repo/plugins/foo/public/lib.ts,
-      <absolute path>/packages/kbn-optimizer/target/worker/entry_point_creator.js,
+      <absolute path>/packages/kbn-optimizer/src/worker/entry_point_creator.ts,
       <absolute path>/packages/kbn-ui-shared-deps/public_path_module_creator.js,
     ]
   `);
@@ -161,7 +161,7 @@ it('builds expected bundles, saves bundle counts to metadata', async () => {
       <absolute path>/packages/kbn-optimizer/src/__fixtures__/__tmp__/mock_repo/plugins/bar/public/lib.ts,
       <absolute path>/packages/kbn-optimizer/src/__fixtures__/__tmp__/mock_repo/src/core/public/core_app/styles/_globals_v7dark.scss,
       <absolute path>/packages/kbn-optimizer/src/__fixtures__/__tmp__/mock_repo/src/core/public/core_app/styles/_globals_v7light.scss,
-      <absolute path>/packages/kbn-optimizer/target/worker/entry_point_creator.js,
+      <absolute path>/packages/kbn-optimizer/src/worker/entry_point_creator.ts,
       <absolute path>/packages/kbn-ui-shared-deps/public_path_module_creator.js,
     ]
   `);
@@ -175,7 +175,7 @@ it('builds expected bundles, saves bundle counts to metadata', async () => {
     Array [
       <absolute path>/packages/kbn-optimizer/src/__fixtures__/__tmp__/mock_repo/x-pack/baz/kibana.json,
       <absolute path>/packages/kbn-optimizer/src/__fixtures__/__tmp__/mock_repo/x-pack/baz/public/index.ts,
-      <absolute path>/packages/kbn-optimizer/target/worker/entry_point_creator.js,
+      <absolute path>/packages/kbn-optimizer/src/worker/entry_point_creator.ts,
       <absolute path>/packages/kbn-ui-shared-deps/public_path_module_creator.js,
     ]
   `);
diff --git a/packages/kbn-optimizer/src/optimizer/observe_worker.ts b/packages/kbn-optimizer/src/optimizer/observe_worker.ts
index edf4545ae52b3..9f0ed9af556fb 100644
--- a/packages/kbn-optimizer/src/optimizer/observe_worker.ts
+++ b/packages/kbn-optimizer/src/optimizer/observe_worker.ts
@@ -61,18 +61,26 @@ function usingWorkerProc<T>(
 ) {
   return Rx.using(
     (): ProcResource => {
-      const proc = execa.node(require.resolve('../worker/run_worker'), [], {
-        nodeOptions: [
-          ...process.execArgv,
-          ...(inspectFlag && config.inspectWorkers
-            ? [`${inspectFlag}=${inspectPortCounter++}`]
-            : []),
-          ...(config.maxWorkerCount <= 3 ? ['--max-old-space-size=2048'] : []),
-        ],
-        buffer: false,
-        stderr: 'pipe',
-        stdout: 'pipe',
-      });
+      const workerPath = require.resolve('../worker/run_worker');
+      const proc = execa.node(
+        workerPath.endsWith('.ts')
+          ? require.resolve('../worker/run_worker_from_source') // workerFromSourcePath
+          : workerPath,
+        [],
+        {
+          nodeOptions: [
+            '--preserve-symlinks',
+            '--preserve-symlinks-main',
+            ...(inspectFlag && config.inspectWorkers
+              ? [`${inspectFlag}=${inspectPortCounter++}`]
+              : []),
+            ...(config.maxWorkerCount <= 3 ? ['--max-old-space-size=2048'] : []),
+          ],
+          buffer: false,
+          stderr: 'pipe',
+          stdout: 'pipe',
+        }
+      );
 
       return {
         proc,
diff --git a/packages/kbn-optimizer/src/worker/bundle_ref_module.ts b/packages/kbn-optimizer/src/worker/bundle_ref_module.ts
index 563b4ecb4bc37..f7604f0f78f71 100644
--- a/packages/kbn-optimizer/src/worker/bundle_ref_module.ts
+++ b/packages/kbn-optimizer/src/worker/bundle_ref_module.ts
@@ -16,7 +16,6 @@ export class BundleRefModule extends Module {
   public built = false;
   public buildMeta?: any;
   public buildInfo?: any;
-  public exportsArgument = '__webpack_exports__';
 
   constructor(public readonly ref: BundleRef) {
     super('kbn/bundleRef', null);
@@ -45,7 +44,9 @@ export class BundleRefModule extends Module {
   build(_: any, __: any, ___: any, ____: any, callback: () => void) {
     this.built = true;
     this.buildMeta = {};
-    this.buildInfo = {};
+    this.buildInfo = {
+      exportsArgument: '__webpack_exports__',
+    };
     callback();
   }
 
diff --git a/packages/kbn-test/index.d.ts b/packages/kbn-optimizer/src/worker/run_worker_from_source.js
similarity index 80%
rename from packages/kbn-test/index.d.ts
rename to packages/kbn-optimizer/src/worker/run_worker_from_source.js
index 004ac67f4b0c4..bebe984a447d6 100644
--- a/packages/kbn-test/index.d.ts
+++ b/packages/kbn-optimizer/src/worker/run_worker_from_source.js
@@ -6,4 +6,5 @@
  * Side Public License, v 1.
  */
 
-export * from './src/index';
+require('@kbn/optimizer').registerNodeAutoTranspilation();
+require('./run_worker');
diff --git a/packages/kbn-optimizer/tsconfig.json b/packages/kbn-optimizer/tsconfig.json
index 20b06b5658cbc..f2d508cf14a55 100644
--- a/packages/kbn-optimizer/tsconfig.json
+++ b/packages/kbn-optimizer/tsconfig.json
@@ -1,10 +1,17 @@
 {
   "extends": "../../tsconfig.base.json",
   "compilerOptions": {
-    "tsBuildInfoFile": "../../build/tsbuildinfo/packages/kbn-optimizer"
+    "incremental": false,
+    "outDir": "./target",
+    "declaration": true,
+    "declarationMap": true,
+    "sourceMap": true,
+    "sourceRoot": "../../../../packages/kbn-optimizer/src"
   },
   "include": [
-    "index.d.ts",
     "src/**/*"
+  ],
+  "exclude": [
+    "**/__fixtures__/**/*"
   ]
 }
diff --git a/packages/kbn-plugin-generator/package.json b/packages/kbn-plugin-generator/package.json
index a0a18bfe7d1cb..ae4dfbc670f19 100644
--- a/packages/kbn-plugin-generator/package.json
+++ b/packages/kbn-plugin-generator/package.json
@@ -4,6 +4,7 @@
   "private": true,
   "license": "SSPL-1.0 OR Elastic License 2.0",
   "main": "target/index.js",
+  "types": "target/index.d.ts",
   "scripts": {
     "kbn:bootstrap": "node scripts/build",
     "kbn:watch": "node scripts/build --watch"
diff --git a/packages/kbn-plugin-generator/tsconfig.json b/packages/kbn-plugin-generator/tsconfig.json
index c54ff041d7065..5e885527a7608 100644
--- a/packages/kbn-plugin-generator/tsconfig.json
+++ b/packages/kbn-plugin-generator/tsconfig.json
@@ -1,12 +1,22 @@
 {
   "extends": "../../tsconfig.base.json",
   "compilerOptions": {
+    "incremental": false,
     "outDir": "target",
     "target": "ES2019",
     "declaration": true,
     "declarationMap": true,
-    "sourceMap": true
+    "sourceMap": true,
+    "sourceRoot": "../../../../packages/kbn-plugin-generator/src",
+    "types": [
+      "jest",
+      "node"
+    ]
   },
-  "include": ["src/**/*"],
-  "exclude": ["src/template/*"]
+  "include": [
+    "src/**/*"
+  ],
+  "exclude": [
+    "src/template/*"
+  ],
 }
diff --git a/packages/kbn-plugin-helpers/package.json b/packages/kbn-plugin-helpers/package.json
index cc845ef9d027f..6b9dd4d51baf9 100644
--- a/packages/kbn-plugin-helpers/package.json
+++ b/packages/kbn-plugin-helpers/package.json
@@ -8,6 +8,7 @@
     "devOnly": true
   },
   "main": "target/index.js",
+  "types": "target/index.d.ts",
   "bin": {
     "plugin-helpers": "bin/plugin-helpers.js"
   },
diff --git a/packages/kbn-plugin-helpers/tsconfig.json b/packages/kbn-plugin-helpers/tsconfig.json
index 651bc79d6e707..87d11843f398a 100644
--- a/packages/kbn-plugin-helpers/tsconfig.json
+++ b/packages/kbn-plugin-helpers/tsconfig.json
@@ -1,10 +1,17 @@
 {
   "extends": "../../tsconfig.base.json",
   "compilerOptions": {
+    "incremental": false,
     "outDir": "target",
+    "target": "ES2018",
     "declaration": true,
+    "declarationMap": true,
     "sourceMap": true,
-    "target": "ES2018"
+    "sourceRoot": "../../../../packages/kbn-plugin-helpers/src",
+    "types": [
+      "jest",
+      "node"
+    ]
   },
   "include": [
     "src/**/*"
diff --git a/packages/kbn-pm/dist/index.js b/packages/kbn-pm/dist/index.js
index 9bf332bf82319..bcb0b6da2a2f8 100644
--- a/packages/kbn-pm/dist/index.js
+++ b/packages/kbn-pm/dist/index.js
@@ -550,7 +550,7 @@ Object.defineProperty(exports, "pickLevelFromFlags", { enumerable: true, get: fu
 Object.defineProperty(exports, "parseLogLevel", { enumerable: true, get: function () { return log_levels_1.parseLogLevel; } });
 var tooling_log_collecting_writer_1 = __webpack_require__(127);
 Object.defineProperty(exports, "ToolingLogCollectingWriter", { enumerable: true, get: function () { return tooling_log_collecting_writer_1.ToolingLogCollectingWriter; } });
-
+//# sourceMappingURL=index.js.map
 
 /***/ }),
 /* 6 */
@@ -628,7 +628,7 @@ class ToolingLog {
     }
 }
 exports.ToolingLog = ToolingLog;
-
+//# sourceMappingURL=tooling_log.js.map
 
 /***/ }),
 /* 7 */
@@ -6749,7 +6749,7 @@ class ToolingLogTextWriter {
     }
 }
 exports.ToolingLogTextWriter = ToolingLogTextWriter;
-
+//# sourceMappingURL=tooling_log_text_writer.js.map
 
 /***/ }),
 /* 112 */
@@ -8790,7 +8790,7 @@ function parseLogLevel(name) {
     };
 }
 exports.parseLogLevel = parseLogLevel;
-
+//# sourceMappingURL=log_levels.js.map
 
 /***/ }),
 /* 127 */
@@ -8823,7 +8823,7 @@ class ToolingLogCollectingWriter extends tooling_log_text_writer_1.ToolingLogTex
     }
 }
 exports.ToolingLogCollectingWriter = ToolingLogCollectingWriter;
-
+//# sourceMappingURL=tooling_log_collecting_writer.js.map
 
 /***/ }),
 /* 128 */
@@ -54377,7 +54377,7 @@ Object.defineProperty(exports, "__esModule", { value: true });
 const tslib_1 = __webpack_require__(7);
 tslib_1.__exportStar(__webpack_require__(476), exports);
 tslib_1.__exportStar(__webpack_require__(477), exports);
-
+//# sourceMappingURL=index.js.map
 
 /***/ }),
 /* 476 */
@@ -54436,7 +54436,7 @@ function observeLines(readable) {
     operators_1.catchError(() => Rx.empty())));
 }
 exports.observeLines = observeLines;
-
+//# sourceMappingURL=observe_lines.js.map
 
 /***/ }),
 /* 477 */
@@ -54465,7 +54465,7 @@ function observeReadable(readable) {
     return Rx.race(Rx.fromEvent(readable, 'end').pipe(operators_1.first(), operators_1.ignoreElements()), Rx.fromEvent(readable, 'error').pipe(operators_1.first(), operators_1.mergeMap((err) => Rx.throwError(err))));
 }
 exports.observeReadable = observeReadable;
-
+//# sourceMappingURL=observe_readable.js.map
 
 /***/ }),
 /* 478 */
@@ -59798,7 +59798,7 @@ class CiStatsReporter {
     }
 }
 exports.CiStatsReporter = CiStatsReporter;
-
+//# sourceMappingURL=ci_stats_reporter.js.map
 
 /***/ }),
 /* 516 */
@@ -63258,7 +63258,7 @@ function parseConfig(log) {
     return;
 }
 exports.parseConfig = parseConfig;
-
+//# sourceMappingURL=ci_stats_config.js.map
 
 /***/ }),
 /* 557 */
diff --git a/packages/kbn-pm/tsconfig.json b/packages/kbn-pm/tsconfig.json
index 175c4701f2e5b..558cff6556ff6 100644
--- a/packages/kbn-pm/tsconfig.json
+++ b/packages/kbn-pm/tsconfig.json
@@ -1,16 +1,14 @@
 {
   "extends": "../../tsconfig.base.json",
-  "include": [
-    "./index.d.ts",
-    "./src/**/*.ts",
-    "./dist/*.d.ts"
-  ],
-  "exclude": [],
   "compilerOptions": {
     "tsBuildInfoFile": "../../build/tsbuildinfo/packages/kbn-pm",
     "types": [
       "jest",
       "node"
     ]
-  }
+  },
+  "include": [
+    "./index.d.ts",
+    "./src/**/*.ts"
+  ]
 }
diff --git a/packages/kbn-server-http-tools/package.json b/packages/kbn-server-http-tools/package.json
index a8f99689f3335..6c65a0dd6e475 100644
--- a/packages/kbn-server-http-tools/package.json
+++ b/packages/kbn-server-http-tools/package.json
@@ -1,6 +1,7 @@
 {
   "name": "@kbn/server-http-tools",
   "main": "./target/index.js",
+  "types": "./target/index.d.ts",
   "version": "1.0.0",
   "license": "SSPL-1.0 OR Elastic License 2.0",
   "private": true,
diff --git a/packages/kbn-server-http-tools/tsconfig.json b/packages/kbn-server-http-tools/tsconfig.json
index ec84b963aed70..2f3e4626a04ce 100644
--- a/packages/kbn-server-http-tools/tsconfig.json
+++ b/packages/kbn-server-http-tools/tsconfig.json
@@ -1,14 +1,14 @@
 {
   "extends": "../../tsconfig.base.json",
   "compilerOptions": {
-    "outDir": "target",
+    "incremental": false,
+    "outDir": "./target",
     "declaration": true,
-    "declarationMap": true
+    "declarationMap": true,
+    "sourceMap": true,
+    "sourceRoot": "../../../../packages/kbn-server-http-tools/src"
   },
   "include": [
     "src/**/*"
-  ],
-  "dependencies": {
-    "@kbn/std": "link:../kbn-std"
-  }
+  ]
 }
diff --git a/packages/kbn-std/tsconfig.json b/packages/kbn-std/tsconfig.json
index fd186a6e43d1c..d2ed46dcad6f8 100644
--- a/packages/kbn-std/tsconfig.json
+++ b/packages/kbn-std/tsconfig.json
@@ -1,13 +1,23 @@
 {
   "extends": "../../tsconfig.base.json",
   "compilerOptions": {
-    "declaration": true,
+    "incremental": false,
     "declarationDir": "./target",
     "outDir": "./target",
     "stripInternal": true,
+    "declaration": true,
     "declarationMap": true,
-    "types": ["jest", "node"]
+    "sourceMap": true,
+    "sourceRoot": "../../../../packages/kbn-std/src",
+    "types": [
+      "jest",
+      "node"
+    ]
   },
-  "include": ["./src/**/*.ts"],
-  "exclude": ["target"]
+  "include": [
+    "./src/**/*.ts"
+  ],
+  "exclude": [
+    "**/__fixture__/**/*"
+  ]
 }
diff --git a/packages/kbn-storybook/package.json b/packages/kbn-storybook/package.json
index 75801948bb20b..fdc7359aab58d 100644
--- a/packages/kbn-storybook/package.json
+++ b/packages/kbn-storybook/package.json
@@ -4,6 +4,7 @@
   "private": true,
   "license": "SSPL-1.0 OR Elastic License 2.0",
   "main": "./target/index.js",
+  "types": "./target/index.d.ts",
   "kibana": {
     "devOnly": true
   },
diff --git a/packages/kbn-storybook/tsconfig.json b/packages/kbn-storybook/tsconfig.json
index 814a3963c9f49..db10d4630ff9c 100644
--- a/packages/kbn-storybook/tsconfig.json
+++ b/packages/kbn-storybook/tsconfig.json
@@ -1,9 +1,19 @@
 {
   "extends": "../../tsconfig.json",
   "compilerOptions": {
-    "declaration": true,
+    "incremental": false,
     "outDir": "target",
-    "skipLibCheck": true
+    "skipLibCheck": true,
+    "declaration": true,
+    "declarationMap": true,
+    "sourceMap": true,
+    "sourceRoot": "../../../../packages/kbn-storybook",
+    "types": [
+      "node"
+    ]
   },
-  "include": ["*.ts", "lib/*.ts"]
+  "include": [
+    "*.ts",
+    "lib/*.ts"
+  ]
 }
diff --git a/packages/kbn-telemetry-tools/package.json b/packages/kbn-telemetry-tools/package.json
index 28d67c73eb49e..2ae1f596a1c68 100644
--- a/packages/kbn-telemetry-tools/package.json
+++ b/packages/kbn-telemetry-tools/package.json
@@ -3,6 +3,7 @@
   "version": "1.0.0",
   "license": "SSPL-1.0 OR Elastic License 2.0",
   "main": "./target/index.js",
+  "types": "./target/index.d.ts",
   "private": true,
   "kibana": {
     "devOnly": true
diff --git a/packages/kbn-telemetry-tools/tsconfig.json b/packages/kbn-telemetry-tools/tsconfig.json
index 98512053a5c92..39946fe9907e5 100644
--- a/packages/kbn-telemetry-tools/tsconfig.json
+++ b/packages/kbn-telemetry-tools/tsconfig.json
@@ -1,7 +1,12 @@
 {
   "extends": "../../tsconfig.base.json",
   "compilerOptions": {
-    "tsBuildInfoFile": "../../build/tsbuildinfo/packages/kbn-telemetry-tools"
+    "incremental": false,
+    "outDir": "./target",
+    "declaration": true,
+    "declarationMap": true,
+    "sourceMap": true,
+    "sourceRoot": "../../../../packages/kbn-telemetry-tools/src"
   },
   "include": [
     "src/**/*",
diff --git a/packages/kbn-test/package.json b/packages/kbn-test/package.json
index 0f0ba8d79a1c1..a2dc8f84cfb51 100644
--- a/packages/kbn-test/package.json
+++ b/packages/kbn-test/package.json
@@ -4,6 +4,7 @@
   "private": true,
   "license": "SSPL-1.0 OR Elastic License 2.0",
   "main": "./target/index.js",
+  "types": "./target/types/index.d.ts",
   "scripts": {
     "build": "node scripts/build",
     "kbn:bootstrap": "node scripts/build --source-maps",
diff --git a/packages/kbn-test/src/functional_test_runner/fake_mocha_types.d.ts b/packages/kbn-test/src/functional_test_runner/fake_mocha_types.ts
similarity index 100%
rename from packages/kbn-test/src/functional_test_runner/fake_mocha_types.d.ts
rename to packages/kbn-test/src/functional_test_runner/fake_mocha_types.ts
diff --git a/packages/kbn-test/src/functional_test_runner/lib/index.ts b/packages/kbn-test/src/functional_test_runner/lib/index.ts
index eef9e833fe5a8..1cb1e58a265d5 100644
--- a/packages/kbn-test/src/functional_test_runner/lib/index.ts
+++ b/packages/kbn-test/src/functional_test_runner/lib/index.ts
@@ -10,6 +10,7 @@ export { Lifecycle } from './lifecycle';
 export { LifecyclePhase } from './lifecycle_phase';
 export { readConfigFile, Config } from './config';
 export { readProviderSpec, ProviderCollection } from './providers';
+// @internal
 export { runTests, setupMocha } from './mocha';
 export { FailureMetadata } from './failure_metadata';
 export * from './docker_servers';
diff --git a/packages/kbn-test/src/functional_test_runner/lib/mocha/index.ts b/packages/kbn-test/src/functional_test_runner/lib/mocha/index.ts
index de55df34fa88b..4f27980db61d1 100644
--- a/packages/kbn-test/src/functional_test_runner/lib/mocha/index.ts
+++ b/packages/kbn-test/src/functional_test_runner/lib/mocha/index.ts
@@ -7,5 +7,7 @@
  */
 
 // @ts-ignore will be replaced shortly
+// @internal
 export { setupMocha } from './setup_mocha';
+// @internal
 export { runTests } from './run_tests';
diff --git a/packages/kbn-test/src/index.ts b/packages/kbn-test/src/index.ts
index 919dc8b4477f3..ef167bc5d7819 100644
--- a/packages/kbn-test/src/index.ts
+++ b/packages/kbn-test/src/index.ts
@@ -6,6 +6,7 @@
  * Side Public License, v 1.
  */
 
+// @internal
 import {
   runTestsCli,
   processRunTestsCliOptions,
@@ -14,27 +15,34 @@ import {
   // @ts-ignore not typed yet
 } from './functional_tests/cli';
 
+// @internal
 export { runTestsCli, processRunTestsCliOptions, startServersCli, processStartServersCliOptions };
 
 // @ts-ignore not typed yet
+// @internal
 export { runTests, startServers } from './functional_tests/tasks';
 
 // @ts-ignore not typed yet
+// @internal
 export { KIBANA_ROOT } from './functional_tests/lib/paths';
 
 // @ts-ignore not typed yet
+// @internal
 export { esTestConfig, createLegacyEsTestCluster } from './legacy_es';
 
 // @ts-ignore not typed yet
+// @internal
 export { kbnTestConfig, kibanaServerTestUser, kibanaTestUser, adminTestUser } from './kbn';
 
 // @ts-ignore not typed yet
+// @internal
 export { setupUsers, DEFAULT_SUPERUSER_PASS } from './functional_tests/lib/auth';
 
 export { readConfigFile } from './functional_test_runner/lib/config/read_config_file';
 
 export { runFtrCli } from './functional_test_runner/cli';
 
+// @internal
 export { setupJUnitReportGeneration, escapeCdata } from './mocha';
 
 export { runFailedTestsReporterCli } from './failed_tests_reporter';
diff --git a/packages/kbn-test/src/kbn_archiver_cli.ts b/packages/kbn-test/src/kbn_archiver_cli.ts
index 98bfa6eaa4046..04581a8354668 100644
--- a/packages/kbn-test/src/kbn_archiver_cli.ts
+++ b/packages/kbn-test/src/kbn_archiver_cli.ts
@@ -10,7 +10,7 @@ import Path from 'path';
 import Url from 'url';
 
 import { RunWithCommands, createFlagError, Flags } from '@kbn/dev-utils';
-import { KbnClient } from '@kbn/test';
+import { KbnClient } from './kbn_client';
 
 import { readConfigFile } from './functional_test_runner';
 
diff --git a/packages/kbn-test/src/mocha/index.ts b/packages/kbn-test/src/mocha/index.ts
index 1cff5202f33b9..4ada51c7ae013 100644
--- a/packages/kbn-test/src/mocha/index.ts
+++ b/packages/kbn-test/src/mocha/index.ts
@@ -7,8 +7,11 @@
  */
 
 // @ts-ignore not typed yet
+// @internal
 export { setupJUnitReportGeneration } from './junit_report_generation';
 // @ts-ignore not typed yet
+// @internal
 export { recordLog, snapshotLogsForRunnable } from './log_cache';
 // @ts-ignore not typed yet
+// @internal
 export { escapeCdata } from './xml';
diff --git a/packages/kbn-test/tsconfig.json b/packages/kbn-test/tsconfig.json
index 6d94389f82caa..8536ad7e0c12f 100644
--- a/packages/kbn-test/tsconfig.json
+++ b/packages/kbn-test/tsconfig.json
@@ -1,22 +1,26 @@
 {
   "extends": "../../tsconfig.base.json",
-  "include": [
-    "types/**/*",
-    "src/**/*",
-    "index.d.ts"
-  ],
-  "exclude": [
-    "types/ftr_globals/**/*"
-  ],
   "compilerOptions": {
-    "declaration": true,
-    "emitDeclarationOnly": true,
+    "incremental": false,
     "outDir": "./target/types",
+    "stripInternal": true,
+    "emitDeclarationOnly": true,
+    "declaration": true,
+    "declarationMap": true,
+    "sourceMap": true,
+    "sourceRoot": "../../../../../packages/kbn-test/src",
     "types": [
       "jest",
       "node"
     ],
-    "stripInternal": true,
-    "declarationMap": true
-  }
+  },
+  "include": [
+    "types/**/*",
+    "src/**/*",
+    "index.d.ts"
+  ],
+  "exclude": [
+    "types/ftr_globals/**/*",
+    "**/__fixtures__/**/*"
+  ]
 }
diff --git a/packages/kbn-utility-types/package.json b/packages/kbn-utility-types/package.json
index 33419ee0f1ec4..ad7dcc6b906c3 100644
--- a/packages/kbn-utility-types/package.json
+++ b/packages/kbn-utility-types/package.json
@@ -3,7 +3,7 @@
   "version": "1.0.0",
   "private": true,
   "license": "SSPL-1.0 OR Elastic License 2.0",
-  "main": "target",
+  "main": "target/index.js",
   "types": "target/index.d.ts",
   "kibana": {
     "devOnly": false
diff --git a/packages/kbn-utility-types/tsconfig.json b/packages/kbn-utility-types/tsconfig.json
index c2d206526e6f4..cfa782e5d38d2 100644
--- a/packages/kbn-utility-types/tsconfig.json
+++ b/packages/kbn-utility-types/tsconfig.json
@@ -1,18 +1,22 @@
 {
   "extends": "../../tsconfig.base.json",
   "compilerOptions": {
-    "declaration": true,
-    "declarationDir": "./target",
+    "incremental": false,
     "outDir": "./target",
+    "declarationDir": "./target",
     "stripInternal": true,
+    "declaration": true,
     "declarationMap": true,
+    "sourceMap": true,
+    "sourceRoot": "../../../../packages/kbn-utility-types",
     "types": [
-      "node",
-      "jest"
+      "jest",
+      "node"
     ]
   },
-  "include": ["index.ts", "jest/**/*", "test-d/**/*"],
-  "exclude": [
-    "target"
+  "include": [
+    "index.ts",
+    "jest/**/*",
+    "test-d/**/*"
   ]
 }
diff --git a/packages/kbn-utils/package.json b/packages/kbn-utils/package.json
index 902eef82736fe..b6bb7759c40ef 100644
--- a/packages/kbn-utils/package.json
+++ b/packages/kbn-utils/package.json
@@ -1,6 +1,7 @@
 {
   "name": "@kbn/utils",
   "main": "./target/index.js",
+  "types": "./target/index.d.ts",
   "version": "1.0.0",
   "license": "SSPL-1.0 OR Elastic License 2.0",
   "private": true,
diff --git a/packages/kbn-utils/tsconfig.json b/packages/kbn-utils/tsconfig.json
index e9dd6313e6f79..e6c83767c30dc 100644
--- a/packages/kbn-utils/tsconfig.json
+++ b/packages/kbn-utils/tsconfig.json
@@ -1,9 +1,16 @@
 {
   "extends": "../../tsconfig.base.json",
   "compilerOptions": {
+    "incremental": false,
     "outDir": "target",
     "declaration": true,
-    "declarationMap": true
+    "declarationMap": true,
+    "sourceMap": true,
+    "sourceRoot": "../../../../packages/kbn-utils/src",
+    "types": [
+      "jest",
+      "node"
+    ]
   },
   "include": [
     "src/**/*"
diff --git a/src/core/test_helpers/kbn_server.ts b/src/core/test_helpers/kbn_server.ts
index d702fed73778f..1844b5de3dc35 100644
--- a/src/core/test_helpers/kbn_server.ts
+++ b/src/core/test_helpers/kbn_server.ts
@@ -9,12 +9,19 @@
 import { Client } from 'elasticsearch';
 import { ToolingLog, REPO_ROOT } from '@kbn/dev-utils';
 import {
+  // @ts-expect-error https://github.com/elastic/kibana/issues/95679
   createLegacyEsTestCluster,
+  // @ts-expect-error https://github.com/elastic/kibana/issues/95679
   DEFAULT_SUPERUSER_PASS,
+  // @ts-expect-error https://github.com/elastic/kibana/issues/95679
   esTestConfig,
+  // @ts-expect-error https://github.com/elastic/kibana/issues/95679
   kbnTestConfig,
+  // @ts-expect-error https://github.com/elastic/kibana/issues/95679
   kibanaServerTestUser,
+  // @ts-expect-error https://github.com/elastic/kibana/issues/95679
   kibanaTestUser,
+  // @ts-expect-error https://github.com/elastic/kibana/issues/95679
   setupUsers,
 } from '@kbn/test';
 import { defaultsDeep, get } from 'lodash';
diff --git a/tsconfig.base.json b/tsconfig.base.json
index 865806cffe5bb..da4de5ef3712b 100644
--- a/tsconfig.base.json
+++ b/tsconfig.base.json
@@ -38,6 +38,8 @@
     "moduleResolution": "node",
     // "resolveJsonModule" allows for importing, extracting types from and generating .json files.
     "resolveJsonModule": true,
+    // Do not resolve symlinks to their real path; treat a symlinked file like a real one.
+    "preserveSymlinks": true,
     // Disallow inconsistently-cased references to the same file.
     "forceConsistentCasingInFileNames": false,
     // Forbid unused local variables as the rule was deprecated by ts-lint
diff --git a/x-pack/test/examples/config.ts b/x-pack/test/examples/config.ts
index dd087772ae52c..fe1b5ce299447 100644
--- a/x-pack/test/examples/config.ts
+++ b/x-pack/test/examples/config.ts
@@ -8,6 +8,7 @@
 import { FtrConfigProviderContext } from '@kbn/test/types/ftr';
 import { resolve } from 'path';
 import fs from 'fs';
+// @ts-expect-error https://github.com/elastic/kibana/issues/95679
 import { KIBANA_ROOT } from '@kbn/test';
 
 export default async function ({ readConfigFile }: FtrConfigProviderContext) {
diff --git a/x-pack/test/functional/page_objects/security_page.ts b/x-pack/test/functional/page_objects/security_page.ts
index 3c0ef7348a4b3..f153050018609 100644
--- a/x-pack/test/functional/page_objects/security_page.ts
+++ b/x-pack/test/functional/page_objects/security_page.ts
@@ -5,6 +5,7 @@
  * 2.0.
  */
 
+// @ts-expect-error https://github.com/elastic/kibana/issues/95679
 import { adminTestUser } from '@kbn/test';
 import { FtrProviderContext } from '../ftr_provider_context';
 import { AuthenticatedUser, Role } from '../../../plugins/security/common/model';
diff --git a/x-pack/test/functional_cors/config.ts b/x-pack/test/functional_cors/config.ts
index 81870a948dc15..42e7771b14401 100644
--- a/x-pack/test/functional_cors/config.ts
+++ b/x-pack/test/functional_cors/config.ts
@@ -8,6 +8,7 @@
 import Url from 'url';
 import Path from 'path';
 import type { FtrConfigProviderContext } from '@kbn/test/types/ftr';
+// @ts-expect-error https://github.com/elastic/kibana/issues/95679
 import { kbnTestConfig } from '@kbn/test';
 import { pageObjects } from '../functional/page_objects';
 
diff --git a/x-pack/test/functional_cors/plugins/kibana_cors_test/server/plugin.ts b/x-pack/test/functional_cors/plugins/kibana_cors_test/server/plugin.ts
index e6c3f4b05aabd..e128ec6f13e77 100644
--- a/x-pack/test/functional_cors/plugins/kibana_cors_test/server/plugin.ts
+++ b/x-pack/test/functional_cors/plugins/kibana_cors_test/server/plugin.ts
@@ -6,6 +6,7 @@
  */
 
 import Hapi from '@hapi/hapi';
+// @ts-expect-error https://github.com/elastic/kibana/issues/95679
 import { kbnTestConfig } from '@kbn/test';
 import { take } from 'rxjs/operators';
 import Url from 'url';
diff --git a/x-pack/test/licensing_plugin/config.public.ts b/x-pack/test/licensing_plugin/config.public.ts
index 35f3bfa11fea0..0de536d7125ca 100644
--- a/x-pack/test/licensing_plugin/config.public.ts
+++ b/x-pack/test/licensing_plugin/config.public.ts
@@ -6,6 +6,7 @@
  */
 
 import path from 'path';
+// @ts-expect-error https://github.com/elastic/kibana/issues/95679
 import { KIBANA_ROOT } from '@kbn/test';
 import { FtrConfigProviderContext } from '@kbn/test/types/ftr';
 
diff --git a/x-pack/test/plugin_functional/config.ts b/x-pack/test/plugin_functional/config.ts
index 9261650bb5d4e..5b846e414bd4c 100644
--- a/x-pack/test/plugin_functional/config.ts
+++ b/x-pack/test/plugin_functional/config.ts
@@ -7,6 +7,7 @@
 
 import { resolve } from 'path';
 import fs from 'fs';
+// @ts-expect-error https://github.com/elastic/kibana/issues/95679
 import { KIBANA_ROOT } from '@kbn/test';
 import { FtrConfigProviderContext } from '@kbn/test/types/ftr';
 import { services } from './services';
diff --git a/x-pack/test/reporting_api_integration/reporting_and_security.config.ts b/x-pack/test/reporting_api_integration/reporting_and_security.config.ts
index 6627cb3be5ed5..ddd6fe046dd31 100644
--- a/x-pack/test/reporting_api_integration/reporting_and_security.config.ts
+++ b/x-pack/test/reporting_api_integration/reporting_and_security.config.ts
@@ -5,6 +5,7 @@
  * 2.0.
  */
 
+// @ts-expect-error https://github.com/elastic/kibana/issues/95679
 import { esTestConfig, kbnTestConfig, kibanaServerTestUser } from '@kbn/test';
 import { FtrConfigProviderContext } from '@kbn/test/types/ftr';
 import { format as formatUrl } from 'url';
diff --git a/x-pack/test/reporting_api_integration/reporting_without_security.config.ts b/x-pack/test/reporting_api_integration/reporting_without_security.config.ts
index 59d6074d9d8ca..20f9ff1b10592 100644
--- a/x-pack/test/reporting_api_integration/reporting_without_security.config.ts
+++ b/x-pack/test/reporting_api_integration/reporting_without_security.config.ts
@@ -5,6 +5,7 @@
  * 2.0.
  */
 
+// @ts-expect-error https://github.com/elastic/kibana/issues/95679
 import { esTestConfig, kbnTestConfig } from '@kbn/test';
 import { FtrConfigProviderContext } from '@kbn/test/types/ftr';
 import { format as formatUrl } from 'url';
diff --git a/x-pack/test/security_api_integration/tests/anonymous/login.ts b/x-pack/test/security_api_integration/tests/anonymous/login.ts
index 183016316fcdb..3d1a05583e904 100644
--- a/x-pack/test/security_api_integration/tests/anonymous/login.ts
+++ b/x-pack/test/security_api_integration/tests/anonymous/login.ts
@@ -7,6 +7,7 @@
 
 import expect from '@kbn/expect';
 import request, { Cookie } from 'request';
+// @ts-expect-error https://github.com/elastic/kibana/issues/95679
 import { adminTestUser } from '@kbn/test';
 import { FtrProviderContext } from '../../ftr_provider_context';
 
diff --git a/x-pack/test/security_api_integration/tests/kerberos/kerberos_login.ts b/x-pack/test/security_api_integration/tests/kerberos/kerberos_login.ts
index 2fe88dc21e5e0..3deb1408dc5c9 100644
--- a/x-pack/test/security_api_integration/tests/kerberos/kerberos_login.ts
+++ b/x-pack/test/security_api_integration/tests/kerberos/kerberos_login.ts
@@ -8,6 +8,7 @@
 import expect from '@kbn/expect';
 import request, { Cookie } from 'request';
 import { delay } from 'bluebird';
+// @ts-expect-error https://github.com/elastic/kibana/issues/95679
 import { adminTestUser } from '@kbn/test';
 import { FtrProviderContext } from '../../ftr_provider_context';
 import {
diff --git a/x-pack/test/security_api_integration/tests/oidc/authorization_code_flow/oidc_auth.ts b/x-pack/test/security_api_integration/tests/oidc/authorization_code_flow/oidc_auth.ts
index b2dd65b4f2009..c13ce902ad658 100644
--- a/x-pack/test/security_api_integration/tests/oidc/authorization_code_flow/oidc_auth.ts
+++ b/x-pack/test/security_api_integration/tests/oidc/authorization_code_flow/oidc_auth.ts
@@ -9,6 +9,7 @@ import expect from '@kbn/expect';
 import request, { Cookie } from 'request';
 import url from 'url';
 import { delay } from 'bluebird';
+// @ts-expect-error https://github.com/elastic/kibana/issues/95679
 import { adminTestUser } from '@kbn/test';
 import { getStateAndNonce } from '../../../fixtures/oidc/oidc_tools';
 import { FtrProviderContext } from '../../../ftr_provider_context';
diff --git a/x-pack/test/security_api_integration/tests/pki/pki_auth.ts b/x-pack/test/security_api_integration/tests/pki/pki_auth.ts
index e3f63aad9e255..6eca9c354e248 100644
--- a/x-pack/test/security_api_integration/tests/pki/pki_auth.ts
+++ b/x-pack/test/security_api_integration/tests/pki/pki_auth.ts
@@ -11,6 +11,7 @@ import { delay } from 'bluebird';
 import { readFileSync } from 'fs';
 import { resolve } from 'path';
 import { CA_CERT_PATH } from '@kbn/dev-utils';
+// @ts-expect-error https://github.com/elastic/kibana/issues/95679
 import { adminTestUser } from '@kbn/test';
 import { FtrProviderContext } from '../../ftr_provider_context';
 
diff --git a/x-pack/test/security_api_integration/tests/saml/saml_login.ts b/x-pack/test/security_api_integration/tests/saml/saml_login.ts
index 598a65603e10f..c58f4d4373b1b 100644
--- a/x-pack/test/security_api_integration/tests/saml/saml_login.ts
+++ b/x-pack/test/security_api_integration/tests/saml/saml_login.ts
@@ -10,6 +10,7 @@ import url from 'url';
 import { delay } from 'bluebird';
 import expect from '@kbn/expect';
 import request, { Cookie } from 'request';
+// @ts-expect-error https://github.com/elastic/kibana/issues/95679
 import { adminTestUser } from '@kbn/test';
 import {
   getLogoutRequest,
diff --git a/x-pack/test/security_api_integration/tests/session_idle/cleanup.ts b/x-pack/test/security_api_integration/tests/session_idle/cleanup.ts
index bb46beef41449..89bb79a4761a0 100644
--- a/x-pack/test/security_api_integration/tests/session_idle/cleanup.ts
+++ b/x-pack/test/security_api_integration/tests/session_idle/cleanup.ts
@@ -8,6 +8,7 @@
 import request, { Cookie } from 'request';
 import { delay } from 'bluebird';
 import expect from '@kbn/expect';
+// @ts-expect-error https://github.com/elastic/kibana/issues/95679
 import { adminTestUser } from '@kbn/test';
 import type { AuthenticationProvider } from '../../../../plugins/security/common/model';
 import { getSAMLRequestId, getSAMLResponse } from '../../fixtures/saml/saml_tools';
diff --git a/x-pack/test/security_api_integration/tests/session_invalidate/invalidate.ts b/x-pack/test/security_api_integration/tests/session_invalidate/invalidate.ts
index 60605c88ce45e..db41aca86e0ba 100644
--- a/x-pack/test/security_api_integration/tests/session_invalidate/invalidate.ts
+++ b/x-pack/test/security_api_integration/tests/session_invalidate/invalidate.ts
@@ -7,6 +7,7 @@
 
 import request, { Cookie } from 'request';
 import expect from '@kbn/expect';
+// @ts-expect-error https://github.com/elastic/kibana/issues/95679
 import { adminTestUser } from '@kbn/test';
 import type { AuthenticationProvider } from '../../../../plugins/security/common/model';
 import { getSAMLRequestId, getSAMLResponse } from '../../fixtures/saml/saml_tools';
diff --git a/x-pack/test/security_api_integration/tests/session_lifespan/cleanup.ts b/x-pack/test/security_api_integration/tests/session_lifespan/cleanup.ts
index 0b17f037dfbd9..d2419ca07a434 100644
--- a/x-pack/test/security_api_integration/tests/session_lifespan/cleanup.ts
+++ b/x-pack/test/security_api_integration/tests/session_lifespan/cleanup.ts
@@ -8,6 +8,7 @@
 import request, { Cookie } from 'request';
 import { delay } from 'bluebird';
 import expect from '@kbn/expect';
+// @ts-expect-error https://github.com/elastic/kibana/issues/95679
 import { adminTestUser } from '@kbn/test';
 import type { AuthenticationProvider } from '../../../../plugins/security/common/model';
 import { getSAMLRequestId, getSAMLResponse } from '../../fixtures/saml/saml_tools';
diff --git a/x-pack/test/security_solution_endpoint/services/endpoint_telemetry.ts b/x-pack/test/security_solution_endpoint/services/endpoint_telemetry.ts
index 646e0536c42f1..d91a772ccafac 100644
--- a/x-pack/test/security_solution_endpoint/services/endpoint_telemetry.ts
+++ b/x-pack/test/security_solution_endpoint/services/endpoint_telemetry.ts
@@ -7,6 +7,7 @@
 
 import fs from 'fs';
 import Path from 'path';
+// @ts-expect-error https://github.com/elastic/kibana/issues/95679
 import { KIBANA_ROOT } from '@kbn/test';
 import { FtrProviderContext } from '../ftr_provider_context';