Evaluate math-ast expression trees
Monkey lang is simple langue implemented in TS following "Writing an interpreter in GO" by Thorsten Ball.
WorkPaper API, CLI evaluator, and MCP server for headless spreadsheet formulas in Node.js services and agents.
WASM-based Cardano transaction script evaluator
XPath implementation for ODK Web Forms
JS implementation of XPath extended with OpenRosa functions and the date datatype
Reference implementation of the qlang pipeline query language
Harness CLI for long-running AI agent tasks
为了防止类型不兼容的情况，同时为了减少生成代码中的重复代码：
Transport-neutral workbook intent API for agent plans, command receipts, and formula readback checks.
A pure JavaScript port of the evaluator from Blaze, a high-performance C++ JSON Schema validator. Zero dependencies. Supports Draft 4, Draft 6, Draft 7, 2019-09, and 2020-12 with schema-specific code generation for near-native speed
JS interface to python evaluator for AREPL
TypeScript evaluator for Forge expressions with browser-compatible UMD bundle
React component for constructing FigTree Evaluator expressions
JSON Eval RS for bundlers (Webpack, Vite, Next.js, etc.) with ergonomic API
Post-quantum threshold homomorphic voting library.
A parser and evaluator for boolean expressions written using the boon format
Evaluator for pudding.
Policy engine for slingshot — grants, roles, tenant-scoped permission evaluation
Typescript/Javascript implementation of NCalc
Codex harness engineering docs and installable agent skills.
Isomorphic, zero-dependency evaluator for compiled Yompi permission policies.
Modular expression parser & evaluator
JavaScript Object Expression Evaluator