GitHub CLI

A CI/CD and automation platform from GitHub (Microsoft) that runs YAML-defined workflows in response to repository events, schedules, or API calls. Workflows orchestrate jobs on GitHub-hosted or self-hosted runners (Ubuntu, Windows, macOS or custom runners), invoke container, JavaScript or composite actions, and produce artifacts (build outputs, test reports, generated files). It supports secrets, caching, matrix and reusable workflows, the Actions Marketplace, and can run arbitrary CLI tools (for example, invoking a D2 CLI in a workflow to generate architecture diagrams from D2 source files).

Gemini CLI is an open-source, Apache 2.0-licensed AI agent that provides terminal access to Google's Gemini models. It can understand and edit codebases, generate applications from PDFs, images, and sketches, debug through natural-language prompts, and run non-interactively for scripted automation. Built-in tools include Google Search grounding, file operations, shell commands, and web fetching; Model Context Protocol (MCP) support allows custom integrations and additional capabilities. The project also supports conversation checkpointing, project-specific GEMINI.md context files, and a GitHub Action for pull-request reviews, issue triage, and on-demand assistance. It can be run with npx or installed through npm, Homebrew, MacPorts, or Anaconda.

The GitHub Copilot SDK is a multi-platform SDK from GitHub for embedding the agent runtime behind Copilot CLI in applications and services. It provides SDKs for Node.js/TypeScript, Python, Go, .NET, Java, and Rust, allowing applications to invoke Copilot agent workflows while the runtime handles planning, tool invocation, file edits, and related orchestration. Applications can also define custom agents, skills, and tools. Each SDK communicates with Copilot CLI running as a server over JSON-RPC. The SDK manages the CLI process lifecycle automatically and can connect to an externally run CLI server. The repository provides package-specific installation and API instructions; the CLI is bundled automatically for Node.js, Python, and .NET, while Go, Java, and Rust generally require a separately available CLI, with application-level bundling features available for Go and Rust. Standard use requires a GitHub Copilot subscription, and usage follows the Copilot CLI billing model, with prompts counted toward the applicable allowance. A BYOK mode supports API keys from supported providers without GitHub authentication.

Gemini API CLI is an experimental command-line interface for the Gemini Interactions API and managed-agent platform. It can run model interactions and managed agents, generate or analyze text and media, transcribe audio or video, manage files, models, agents, environments, triggers, and webhooks, and stream results in formats including JSON, YAML, and TOON. Commands expose machine-readable usage information and request schemas, while --dry-run validates inputs and previews redacted HTTP requests without contacting the API. Authentication can use API keys, OAuth access tokens, an operating-system keychain, or a configuration file. The repository describes the CLI as beta software with possible breaking changes, generated through Speakeasy; its software is licensed under Apache 2.0, and the repository states that it is not an official Google product.

Git is an open-source, fast, scalable, distributed revision control system. It stores project changes as versioned commits and provides repository history, diffs, branching, isolated work trees, and rollback capabilities for reviewing or reverting changes. The project provides both high-level version-control operations and access to its internal mechanisms. It is covered primarily by the GNU General Public License, with some components under compatible licenses, and was originally written by Linus Torvalds with contributions from a wider developer community.