High-performance, pure MoonBit Immediate-Mode GUI library for WebAssembly, Canvas, and Games.

LLM Agent framework with hexagonal (ports-and-adapters) architecture. Defines 9 traits + Agent loop. Depends on moonbitlang/async.

Image / video labeling backend for the MoonbitLabeler app: 21 async ops over @fs/@json for folder browsing, image IO, label IO, schema normalization (parse/serialize round-trip), class management, and VOC/YOLO export. The op_handlers are pure async MoonBit functions and can be wired into any IPC layer (Proton/CEF, stdio JSON-RPC, HTTP, WASM, custom bridge). Includes a `dispatch_op(op, payload) -> Json raise` entry point in 0.2.0+ for embedding outside the CEF runtime.

A pluggable CSS preprocessor compile facade: a single function turns SCSS / LESS / CSS source (or file) into CSS, routing to swappable backend engines.

Deterministic repository change-policy evaluation and review planning for MoonBit

Portable weaving draft simulation, liftplan compilation and periodic float analysis

Conservative JSON syntax repair with replayable edits and explicit refusal boundaries.

Deterministic record-and-replay (cassette) for LLM interactions: write offline, reproducible, drift-detecting regression tests for LLM applications without API keys or network.

Numeric kernel of atools: FFT, STFT codec and phase reconstruction, compiled to WASM for direct browser use

MoonBit Shapefile geometry, index and attribute table reader/writer

Adapter mapping DC-Z-lab/moonllm streaming chunks onto MoonStream sessions.

Adapter mapping mizchi/llm streaming events onto MoonStream sessions.

Deterministic repository change-policy evaluation and review planning for MoonBit

Numeric kernel of atools: FFT, STFT codec and phase reconstruction, compiled to WASM for direct browser use

MoonBit Shapefile geometry, index and attribute table reader/writer

Adapter mapping DC-Z-lab/moonllm streaming chunks onto MoonStream sessions.

Adapter mapping mizchi/llm streaming events onto MoonStream sessions.

Adapter mapping marianoguerra/llm streaming events onto MoonStream sessions.

Incremental, chunk-invariant parsing of streaming JSON tool-call arguments.

Deterministic record-and-replay (cassette) for LLM interactions: write offline, reproducible, drift-detecting regression tests for LLM applications without API keys or network.

MoonBit HTTP interaction recording, replay, and offline contract testing library

Pure MoonBit XZ/LZMA/LZMA2 compression and decompression toolkit

RFC 6902 JSON Patch (apply + diff) and RFC 7386 JSON Merge Patch for MoonBit, with RFC 6901 JSON Pointer support and precise error reporting.

Test toolkit for MoonBit wasm-gc web apps: a Node harness that drives your wasm exports over the JSON bridge, a headless-Chromium runner for DOM assertions, and moon-level envelope checks. The tools test themselves against the bundled demo app.

experimental packages for moonbitlang/core

Asynchronous programming library for MoonBit

Cross-platform MoonBit compatibility facades with native delegation and accelerated JS implementations for async IO, bytes, regexp, and JSON.

Pure MoonBit zlib/deflate implementation.

Automatic testing of MoonBit programs

AST and parsers for the MoonBit programming language

Workflow engine core with Starlark-subset parser, DAG execution, and cache planning primitives.

Temporary file and directory management for MoonBit

Pure MoonBit LLM client library

A generic lexer library for handwritten lexers in MoonBit

A TOML parser implementation in MoonBit

A LR(1) parser generator for MoonBit programming language.