Get the contrast ratio and WCAG score between common CSS color types.

JSONPath, JSON Pointer and JSON Patch

Calculates an index based the average distances between points in the dataset, thereby providing inference as to whether the data is clustered, dispersed, or randomly distributed within the study area.

Codebase intelligence for TypeScript and JavaScript. Free static analysis of code and styles, optional paid runtime intelligence (Fallow Runtime). Quality, risk, architecture, dependencies, duplication, and design-system drift for humans, CI, and the agen

A page based custom aggregate pagination library for Mongoose with customizable labels.

Evaluation + Darwin-Mode bridge for @metaharness/workspace-lens: turn Jacobian-Lens interpretability receipts into a flywheel-consumable workspace_probe score, and reject structurally-brittle prompt/policy mutations (final answer up, workspace grip down).

Use CRAP to estimate and visualize the change risk of your JS/TS project.

String Scoring Algorithm packaged for NodeJS

A simple and powerful JavaScript animation library

Much like tests in traditional software, evals are an important part of bringing LLM applications to production. The goal of this package is to help provide a starting point for you to write evals for your LLM applications, from which you can write more c

Deterministic AI coding harness-maturity scanner for AI-assisted repositories (Cursor-flagship, expanding to other AI-first dev tools). Zero LLM calls, zero network, zero runtime dependencies.

Tiny async queue with concurrency control. Like p-limit or fastq, but smaller and faster.

Universal library for evaluating AI models

Catch the slop AI coding agents leave in your code: narrative comments, swallowed exceptions, as-any casts, dead code, oversized functions. 50+ rules across 10 language targets (TypeScript, JavaScript, Expo / React Native, Python, Go, Rust, Ruby, PHP, C#,

fs.readdir with sync, async, and streaming APIs + filtering, recursion, absolute paths, etc.

A pino logger plugin for hono

No description provided.

A lightweight simple library for scoring passwords

Fuzzy finding algorithm

npm package includes TypeScript and is designed to calculate various statistics from text in order to determine the readability, complexity, and grade level of a given corpus.