Spec-first workflow kit for GitHub Copilot — AI-driven development with specs, not guesswork
Spec-Driven Development Framework — one package, six AI coding tools (opencode, Claude Code, Cursor, Windsurf, GitHub Copilot, Cline)
GitHub Copilot CLI brings the power of Copilot coding agent directly to your terminal.
GitHub Copilot CLI executable for linux-x64
An ES2019 spec-compliant `Array.prototype.flatMap` shim/polyfill/replacement that works as far down as ES3.
An ESnext spec-compliant iterator helpers shim/polyfill/replacement that works as far down as ES3.
An ESnext spec-compliant `Array.prototype.findLastIndex` shim/polyfill/replacement that works as far down as ES3.
An ESnext spec-compliant `Array.prototype.findLast` shim/polyfill/replacement that works as far down as ES3.
An ES2019 spec-compliant `Array.prototype.flat` shim/polyfill/replacement that works as far down as ES3.
Add MCP servers to your favorite coding agents with a single command.
An ES7/ES2016 spec-compliant `Array.prototype.includes` shim/polyfill/replacement that works as far down as ES3.
Your AI pair programmer
GitHub Copilot CLI executable for win32-x64
## What is it?
Turn approved specs into long-running autonomous implementation. A minimal, adaptable SDD harness with Agent Skills for Claude Code, Codex, Cursor, Copilot, Windsurf, OpenCode, Gemini CLI, and Antigravity.
A module used for interacting with the GitHub Copilot API.
An ESnext spec-compliant `Array.prototype.toSorted` shim/polyfill/replacement that works as far down as ES3.
An ES5 spec-compliant `Array.prototype.reduce` shim/polyfill/replacement that works as far down as ES3.
Middleware and a scalar Upload to add support for GraphQL multipart requests (file uploads via queries and mutations) to various Node.js GraphQL servers.
GitHub Copilot CLI executable for linuxmusl-x64
Spec reporter for jasmine behavior-driven development framework
A high-level API to automate web browsers
GitHub Copilot CLI executable for darwin-arm64
A Query Language and Runtime which can target any service.