elaraai

Scaffold East / e3 projects with the `npm create @elaraai/e3` and `npm create @elaraai/east` initializers. Use when: (1) Creating a new project from scratch ('create an e3 project', 'set up an East project', 'new project called X'), (2) Choosing e3 (durable dataflow, Node+Python+C) vs east (Node-only), (3) Deciding CLI flags — --runners, --platform, --python-packages / --node-packages / --c-packages, --ui, --tests, --eslint, --install — and understanding exactly what each generates, (4) Splitting platform code into per-runtime workspace packages for per-package change detection. After scaffolding, the east-project skill drives the build/deploy/run/watch lifecycle.

East Execution Engine (e3) - durable dataflow execution for East programs. Use when: (1) Authoring e3 packages with @elaraai/e3 (e3.input, e3.task, e3.customTask, e3.function, e3.ui, e3.package, e3.export), (2) Running e3 CLI commands (e3 repo, e3 workspace, e3 package, e3 dataset, e3 task, e3 dataflow run, e3 call, e3 watch, e3 auth), (3) Working with workspaces and packages, (4) Content-addressable caching and reactive dataflow execution.

I/O platform functions for the East language on Node.js. Use when writing East programs that need SQL databases (SQLite, PostgreSQL, MySQL), NoSQL databases (Redis, MongoDB), S3 storage, file transfers (FTP, SFTP), file format parsing (XLSX, XML), or compression (Gzip, Zip, Tar). Triggers for: (1) Writing East programs with @elaraai/east-node-io, (2) Database operations with SQL.SQLite, SQL.Postgres, SQL.MySQL, NoSQL.Redis, NoSQL.MongoDB, (3) Cloud storage with Storage.S3, (4) File transfers with Transfer.FTP, Transfer.SFTP, (5) Format parsing with Format.XLSX, Format.XML, (6) Compression with Compression.Gzip, Compression.Zip, Compression.Tar.

Node.js platform functions for the East language. Use when writing East programs that need Console I/O, Environment variables, FileSystem operations, HTTP Fetch requests, Cryptography, Time operations, Path manipulation, Random number generation, or Testing. Triggers for: (1) Writing East programs with @elaraai/east-node-std, (2) Using platform functions like Console.log, Env.get, FileSystem.readFile, Fetch.get, Crypto.uuid, Time.now, Path.join, Random.normal, (3) Testing East code with describeEast and Assert, (4) Passing credentials/secrets to East tasks without putting them in source.

Data science and machine learning platform functions for the East language (TypeScript types + directly-callable Python implementations). Use when writing East programs that need optimization (MADS, Optuna, SimAnneal, Scipy, Optimization, GoogleOr), machine learning (XGBoost, LightGBM, NGBoost, Torch MLP, Lightning, GP), Bayesian inference (PyMC), causal inference (Causal: DoWhy, EconML DML, ALE), simulation (Simulation DES), ML utilities (Sklearn preprocessing, metrics, splits), conformal prediction (MAPIE), or model explainability (SHAP). Triggers for: (1) Writing East programs with @elaraai/east-py-datascience, (2) Derivative-free optimization with MADS, (3) Bayesian optimization with Optuna, (4) Discrete/combinatorial optimization with SimAnneal, (5) Gradient boosting with XGBoost or LightGBM, (6) Probabilistic predictions with NGBoost or GP, (7) Neural networks with Torch MLP or Lightning, (8) Data preprocessing and metrics with Sklearn, (9) Conformal prediction intervals with MAPIE, (10) Model explainab

I/O platform functions for the East language on the Python runtime - SQL databases (SQLite, PostgreSQL, MySQL, Access), NoSQL (Redis, MongoDB), S3 storage, file transfers (FTP, SFTP), file formats (XLSX, XML), and compression (Gzip, Zip, Tar). Use when writing Python (not the TypeScript DSL) that calls or registers these platform functions. Triggers for: (1) Calling east_py_io *_impl functions directly from a project's own Python @platform_function (sqlite_query_impl, mongo_find_impl, s3_put_object_impl, ftp_get_impl, xlsx_read_impl, gzip_compress_impl, ...), (2) Registering the east_py_io platform list with compile() so East programs can use SQL/NoSQL/Storage/Transfer/Format/Compression on the Python runtime, (3) Building connection configs (SqliteConfigType, PostgresConfigType, RedisConfigType, S3ConfigType, FtpConfigType, ...) in Python, (4) The connect -> handle -> operate -> close connection lifecycle. For authoring East programs in TypeScript against these functions, use the east-node-io skill instead.

Use East runtime values as the working data in Python — prefer their chained eager methods (native east-c, faster + standardised) over converting to pure-Python list/dict/set — and call Python from East. Use when writing Python (not the TypeScript DSL) against the east-py runtime. Triggers for: (1) Constructing/validating East values in Python (EastArray/Set/Dict/Vector/Matrix/Struct/Variant, variant()/some/none/struct/array, coerce_to/assert_value_of), (2) Transforming values with eager methods that delegate to the east-c builtins (sort/map/filter/fold/concat/set-algebra/dict-merge/etc.), (3) Scalar builtins via the East.<Type> namespaces (East.Float.sqrt, East.String.split, East.DateTime.print_format, East.less), (4) Exposing a Python function to East with @platform_function (output validation, sync/async), (5) NumPy/torch interop through EastVector/EastMatrix to_numpy()/to_torch(), (6) Porting a plain-Python data-science POC into an East platform function.

Standard platform functions for the East language on the Python runtime - console, environment variables, filesystem, HTTP fetch, crypto, time, path, random, testing. Use when writing Python (not the TypeScript DSL) that calls or registers these platform functions. Triggers for: (1) Calling east_py_std *_impl functions directly from a project's own Python @platform_function (env_get_impl, fs_read_file_impl, fetch_request_impl, crypto_uuid_impl, random_normal_impl, ...), (2) Registering the east_py_std platform list with compile() so East programs can use Console/Env/FileSystem/Fetch/Crypto/Time/Path/Random/Test on the Python runtime, (3) Building FetchRequestConfigType requests in Python, (4) Deterministic random streams with random_seed. For authoring East programs in TypeScript against these functions, use the east-node-std skill instead.

East Execution Engine (e3) - durable dataflow execution for East programs. Use when: (1) Authoring e3 packages with @elaraai/e3 (e3.input, e3.task, e3.package, e3.export), (2) Running e3 CLI commands (e3 repo create, e3 start, e3 watch, e3 get, e3 set), (3) Working with workspaces and packages, (4) Content-addressable caching and dataflow execution.

I/O platform functions for the East language on Node.js. Use when writing East programs that need SQL databases (SQLite, PostgreSQL, MySQL), NoSQL databases (Redis, MongoDB), S3 storage, file transfers (FTP, SFTP), file format parsing (XLSX, XML), or compression (Gzip, Zip, Tar). Triggers for: (1) Writing East programs with @elaraai/east-node-io, (2) Database operations with SQL.SQLite, SQL.Postgres, SQL.MySQL, NoSQL.Redis, NoSQL.MongoDB, (3) Cloud storage with Storage.S3, (4) File transfers with Transfer.FTP, Transfer.SFTP, (5) Format parsing with Format.XLSX, Format.XML, (6) Compression with Compression.Gzip, Compression.Zip, Compression.Tar.

Node.js platform functions for the East language. Use when writing East programs that need Console I/O, FileSystem operations, HTTP Fetch requests, Cryptography, Time operations, Path manipulation, Random number generation, or Testing. Triggers for: (1) Writing East programs with @elaraai/east-node-std, (2) Using platform functions like Console.log, FileSystem.readFile, Fetch.get, Crypto.uuid, Time.now, Path.join, Random.normal, (3) Testing East code with describeEast and Assert.

Data science and machine learning platform functions for the East language (TypeScript types). Use when writing East programs that need optimization (MADS, Optuna, SimAnneal, Scipy, Optimization, GoogleOr), machine learning (XGBoost, LightGBM, NGBoost, Torch MLP, Lightning, GP), Bayesian inference (PyMC), simulation (Simulation DES), ML utilities (Sklearn preprocessing, metrics, splits), conformal prediction (MAPIE), or model explainability (SHAP). Triggers for: (1) Writing East programs with @elaraai/east-py-datascience, (2) Derivative-free optimization with MADS, (3) Bayesian optimization with Optuna, (4) Discrete/combinatorial optimization with SimAnneal, (5) Gradient boosting with XGBoost or LightGBM, (6) Probabilistic predictions with NGBoost or GP, (7) Neural networks with Torch MLP or Lightning, (8) Data preprocessing and metrics with Sklearn, (9) Conformal prediction intervals with MAPIE, (10) Model explainability with Shap, (11) Iterative coordinate descent with Optimization, (12) Constraint programm

UI component definitions for the East language. Use when building UIs with @elaraai/east-ui. Triggers for: (1) Creating UI components with Stack, Box, Grid, Card, Text, Button, (2) Building forms with Input, Select, Checkbox, Switch, Slider, (3) Displaying data with Table, DataList, Chart, Badge, Tag, Stat, (4) Using overlays like Dialog, Drawer, Popover, Tooltip, Menu, (5) Working with UIComponentType, (6) Styling with variants (FontWeight, TextAlign, ColorScheme, Size).

I/O platform functions for the East language on Node.js. Use when writing East programs that need SQL databases (SQLite, PostgreSQL, MySQL), NoSQL databases (Redis, MongoDB), S3 storage, file transfers (FTP, SFTP), file format parsing (XLSX, XML), or compression (Gzip, Zip, Tar). Triggers for: (1) Writing East programs with @elaraai/east-node-io, (2) Database operations with SQL.SQLite, SQL.Postgres, SQL.MySQL, NoSQL.Redis, NoSQL.MongoDB, (3) Cloud storage with Storage.S3, (4) File transfers with Transfer.FTP, Transfer.SFTP, (5) Format parsing with Format.XLSX, Format.XML, (6) Compression with Compression.Gzip, Compression.Zip, Compression.Tar.

Node.js platform functions for the East language. Use when writing East programs that need Console I/O, FileSystem operations, HTTP Fetch requests, Cryptography, Time operations, Path manipulation, Random number generation, or Testing. Triggers for: (1) Writing East programs with @elaraai/east-node-std, (2) Using platform functions like Console.log, FileSystem.readFile, Fetch.get, Crypto.uuid, Time.now, Path.join, Random.normal, (3) Testing East code with describeEast and Assert.

East programming language - a statically typed, expression-based language embedded in TypeScript. Use when writing East programs with @elaraai/east. Triggers for: (1) Writing East functions with East.function() or East.asyncFunction(), (2) Defining types (IntegerType, StringType, ArrayType, StructType, VariantType, etc.), (3) Using platform functions with East.platform() or East.asyncPlatform(), (4) Compiling East programs with East.compile(), (5) Working with East expressions (arithmetic, collections, control flow), (6) Serializing East IR with .toIR() and EastIR.fromJSON(), (7) Standard library operations (formatting, rounding, generation).

East Execution Engine (e3) - durable dataflow execution for East programs. Use when: (1) Authoring e3 packages with @elaraai/e3 (e3.input, e3.task, e3.package, e3.export), (2) Running e3 CLI commands (e3 repo create, e3 start, e3 watch, e3 get, e3 set), (3) Working with workspaces and packages, (4) Content-addressable caching and dataflow execution.

Data science and machine learning platform functions for the East language (TypeScript types). Use when writing East programs that need optimization (MADS, Optuna, SimAnneal, Scipy, Optimization, GoogleOr), machine learning (XGBoost, LightGBM, NGBoost, Torch MLP, Lightning, GP), Bayesian inference (PyMC), simulation (Simulation DES), ML utilities (Sklearn preprocessing, metrics, splits), conformal prediction (MAPIE), or model explainability (SHAP). Triggers for: (1) Writing East programs with @elaraai/east-py-datascience, (2) Derivative-free optimization with MADS, (3) Bayesian optimization with Optuna, (4) Discrete/combinatorial optimization with SimAnneal, (5) Gradient boosting with XGBoost or LightGBM, (6) Probabilistic predictions with NGBoost or GP, (7) Neural networks with Torch MLP or Lightning, (8) Data preprocessing and metrics with Sklearn, (9) Conformal prediction intervals with MAPIE, (10) Model explainability with Shap, (11) Iterative coordinate descent with Optimization, (12) Constraint programm

Type-safe UI component library for the East language. Use when writing East programs that define user interfaces with declarative components. Triggers for: (1) Writing East programs with @elaraai/east-ui, (2) Creating layouts with Box, Flex, Stack, Grid, (3) Forms with Input, Select, Checkbox, Switch, Slider, (4) Data display with Table, TreeView, DataList, Gantt, Planner, (5) Charts with Chart.Line, Chart.Bar, Chart.Area, Chart.Pie, Chart.Scatter, (6) Overlays with Dialog, Drawer, Popover, Menu, Tooltip, (7) State management with State.readTyped, State.writeTyped.