Diff-scoped mutation gate — the honest coverage check, mutating only changed lines (P3/C4).

Diff-scoped mutation probe for AI-written tests: guts each changed function and reruns only its own tests, reporting proven, hollow, one-sided, unverifiable, or no binding test — each with a replayable receipt.

Self-host the Blaka Hollow font in a neatly bundled NPM package.

Agent Hollow: visualize Claude Code sessions as a pixel-art RTS

The Firebase Authenticaton component of the Firebase JS SDK.

Authorbot Phase 2 API: Hono 4 app for Cloudflare Workers with runtime-agnostic business wiring (identity, annotations, replies, Git-mirroring command flow, projection rebuild, webhook ingest)

AI player for The Hollow Grid MUD: WebSocket client with structured @event state and pluggable LLM brains.

Enables LLMs to search and evaluate Steam games — prices, discounts, reviews and Steam Deck compatibility with no API key, plus a player's library, achievements and friends via the official Steam Web API.

ES Math-related intrinsics and helpers, robustly cached.

PNG encoder/decoder in pure JS, supporting any bit size & interlace, async & sync with full test suite.

A function to parse floating point hexadecimal strings as defined by the WebAssembly specification

Prisma Client is an auto-generated, type-safe and modern JavaScript/TypeScript ORM for Node.js that's tailored to your data. Supports PostgreSQL, CockroachDB, MySQL, MariaDB, SQL Server, SQLite & MongoDB databases.

A Babel preset that enables parsing of proposals supported by the current Node.js version.

Parameterised tests for Jest

ESLint rule for .only blocks in mocha tests

Convert a GEDCOM file into a JS object

Delightful JavaScript Testing.

Browser running for Vitest

cloudflare preset for unenv

Delightful JavaScript Testing.