diff --git a/packages/transformers/ajsttil/.eslintignore b/packages/transformers/ajsttil/.eslintignore
new file mode 100644
index 0000000..e8e7770
--- /dev/null
+++ b/packages/transformers/ajsttil/.eslintignore
@@ -0,0 +1,2 @@
+**/*.js
+**/*.mjs
diff --git a/packages/transformers/ajsttil/.eslintrc.js b/packages/transformers/ajsttil/.eslintrc.js
new file mode 100644
index 0000000..8f4a2ee
--- /dev/null
+++ b/packages/transformers/ajsttil/.eslintrc.js
@@ -0,0 +1,8 @@
+/** @type { import("eslint").ESLint.ConfigData } */
+module.exports = {
+  extends: '@cuaklabs/eslint-config',
+  parserOptions: {
+    project: ['./tsconfig.json'],
+    tsconfigRootDir: __dirname,
+  },
+};
diff --git a/packages/transformers/ajsttil/.gitignore b/packages/transformers/ajsttil/.gitignore
new file mode 100644
index 0000000..c33861a
--- /dev/null
+++ b/packages/transformers/ajsttil/.gitignore
@@ -0,0 +1,11 @@
+# node modules
+/node_modules/
+
+# Test coverage report
+/coverage
+
+# Compiled files
+/lib/
+
+# Turborepo files
+.turbo/
diff --git a/packages/transformers/ajsttil/.lintstagedrc.json b/packages/transformers/ajsttil/.lintstagedrc.json
new file mode 100644
index 0000000..0061dfc
--- /dev/null
+++ b/packages/transformers/ajsttil/.lintstagedrc.json
@@ -0,0 +1,9 @@
+{
+  "*.js": [
+    "prettier --write"
+  ],
+  "*.ts": [
+    "prettier --write",
+    "eslint"
+  ]
+}
diff --git a/packages/transformers/ajsttil/CHANGELOG.md b/packages/transformers/ajsttil/CHANGELOG.md
new file mode 100644
index 0000000..6bbf1cf
--- /dev/null
+++ b/packages/transformers/ajsttil/CHANGELOG.md
@@ -0,0 +1,25 @@
+# Changelog
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
+
+<!--
+## [UNRELEASED]
+
+### Added
+### Changed
+### Deprecated
+### Removed
+### Fixed
+### Security
+### Docs
+-->
+
+
+
+
+## [UNRELEASED]
+
+
+
diff --git a/packages/transformers/ajsttil/LICENSE b/packages/transformers/ajsttil/LICENSE
new file mode 100644
index 0000000..fdddb29
--- /dev/null
+++ b/packages/transformers/ajsttil/LICENSE
@@ -0,0 +1,24 @@
+This is free and unencumbered software released into the public domain.
+
+Anyone is free to copy, modify, publish, use, compile, sell, or
+distribute this software, either in source code form or as a compiled
+binary, for any purpose, commercial or non-commercial, and by any
+means.
+
+In jurisdictions that recognize copyright laws, the author or authors
+of this software dedicate any and all copyright interest in the
+software to the public domain. We make this dedication for the benefit
+of the public at large and to the detriment of our heirs and
+successors. We intend this dedication to be an overt act of
+relinquishment in perpetuity of all present and future rights to this
+software under copyright law.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+For more information, please refer to <https://unlicense.org>
diff --git a/packages/transformers/ajsttil/package.json b/packages/transformers/ajsttil/package.json
new file mode 100644
index 0000000..364eec0
--- /dev/null
+++ b/packages/transformers/ajsttil/package.json
@@ -0,0 +1,44 @@
+{
+  "author": "Roberto Pintos López (https://github.com/notaphplover)",
+  "description": "ajstt intermediate language",
+  "devDependencies": {
+    "@cuaklabs/json-schema-types": "workspace:*",
+    "@jest/globals": "29.6.4",
+    "@types/glob": "8.1.0",
+    "@types/node": "18.17.14",
+    "@typescript-eslint/eslint-plugin": "6.6.0",
+    "@typescript-eslint/parser": "6.6.0",
+    "eslint": "8.48.0",
+    "eslint-import-resolver-typescript": "3.6.0",
+    "eslint-plugin-import": "2.26.0",
+    "eslint-plugin-jest": "27.2.3",
+    "eslint-plugin-prettier": "5.0.0",
+    "prettier": "3.0.3",
+    "rimraf": "5.0.1",
+    "typescript": "5.2.2"
+  },
+  "bugs": {
+    "url": "https://github.com/cuaklabs/ajstt/issues"
+  },
+  "homepage": "https://github.com/cuaklabs/ajstt#readme",
+  "license": "See license in \"LICENSE\" file",
+  "exports": {
+    ".": "./lib/index.js"
+  },
+  "name": "@cuaklabs/ajsttil",
+  "publishConfig": {
+    "access": "public"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/cuaklabs/ajstt.git"
+  },
+  "scripts": {
+    "build": "tsc --build tsconfig.json",
+    "build:clean": "rimraf lib",
+    "format": "prettier --write ./src/**/*.ts",
+    "lint": "eslint --ext ts --ignore-path .gitignore ./src",
+    "prebuild": "pnpm run build:clean"
+  },
+  "version": "0.1.0"
+}
diff --git a/packages/transformers/ajsttil/prettier.config.mjs b/packages/transformers/ajsttil/prettier.config.mjs
new file mode 100644
index 0000000..6b34292
--- /dev/null
+++ b/packages/transformers/ajsttil/prettier.config.mjs
@@ -0,0 +1,3 @@
+import config from '@cuaklabs/prettier-config';
+
+export default config;
diff --git a/packages/transformers/ajsttil/src/index.ts b/packages/transformers/ajsttil/src/index.ts
new file mode 100644
index 0000000..aa5fda1
--- /dev/null
+++ b/packages/transformers/ajsttil/src/index.ts
@@ -0,0 +1,72 @@
+import { JsonValue } from '@cuaklabs/json-schema-types';
+
+export enum TypeMetadataKind {
+  and,
+  anyType,
+  arrayType,
+  booleanType,
+  integerType,
+  literalType,
+  noneType,
+  nullType,
+  numberType,
+  or,
+  propertyType,
+  stringType,
+  xor,
+}
+
+export interface BaseTypeMetadata<TKind extends TypeMetadataKind> {
+  id?: string;
+  kind: TKind;
+}
+
+export interface OneChildTypeMetadata<TKind extends TypeMetadataKind>
+  extends BaseTypeMetadata<TKind> {
+  child: TypeMedatata;
+}
+
+export interface ManyChildrenTypeMetadata<
+  TKind extends TypeMetadataKind,
+  TChildren extends TypeMedatata[] = TypeMedatata[],
+> extends BaseTypeMetadata<TKind> {
+  children: TChildren[];
+}
+
+export type AndTypeMetadata = ManyChildrenTypeMetadata<TypeMetadataKind.and>;
+export type AnyTypeMetadata = BaseTypeMetadata<TypeMetadataKind.anyType>;
+export type ArrayTypeMetadata =
+  OneChildTypeMetadata<TypeMetadataKind.arrayType>;
+export type BooleanTypeMetadata =
+  BaseTypeMetadata<TypeMetadataKind.booleanType>;
+export type IntegerTypeMetadata =
+  BaseTypeMetadata<TypeMetadataKind.integerType>;
+export interface LiteralTypeMetadata
+  extends BaseTypeMetadata<TypeMetadataKind.literalType> {
+  literal: JsonValue;
+}
+export type NoneTypeMetadata = BaseTypeMetadata<TypeMetadataKind.noneType>;
+export type NullTypeMetadata = BaseTypeMetadata<TypeMetadataKind.nullType>;
+export type NumberTypeMetadata = BaseTypeMetadata<TypeMetadataKind.numberType>;
+export type OrTypeMetadata = ManyChildrenTypeMetadata<TypeMetadataKind.or>;
+export interface PropertyTypeMetadata
+  extends OneChildTypeMetadata<TypeMetadataKind.propertyType> {
+  property: string;
+}
+export type StringTypeMetadata = BaseTypeMetadata<TypeMetadataKind.stringType>;
+export type XorTypeMetadata = ManyChildrenTypeMetadata<TypeMetadataKind.xor>;
+
+export type TypeMedatata =
+  | AndTypeMetadata
+  | AnyTypeMetadata
+  | ArrayTypeMetadata
+  | BooleanTypeMetadata
+  | IntegerTypeMetadata
+  | LiteralTypeMetadata
+  | NoneTypeMetadata
+  | NullTypeMetadata
+  | NumberTypeMetadata
+  | OrTypeMetadata
+  | PropertyTypeMetadata
+  | StringTypeMetadata
+  | XorTypeMetadata;
diff --git a/packages/transformers/ajsttil/tsconfig.json b/packages/transformers/ajsttil/tsconfig.json
new file mode 100644
index 0000000..4c1edb9
--- /dev/null
+++ b/packages/transformers/ajsttil/tsconfig.json
@@ -0,0 +1,9 @@
+{
+  "$schema": "http://json.schemastore.org/tsconfig",
+  "extends": "@cuaklabs/typescript-config/tsconfig.base.node.cjs.json",
+  "compilerOptions": {
+    "outDir": "./lib",
+    "rootDir": "./src"
+  },
+  "include": ["src"]
+}
diff --git a/pnpm-workspace.yaml b/pnpm-workspace.yaml
index b37caf3..54f44b6 100644
--- a/pnpm-workspace.yaml
+++ b/pnpm-workspace.yaml
@@ -1,3 +1,4 @@
 packages:
   - "packages/parser/*"
   - "packages/tools/*"
+  - "packages/transformers/*"