Top CODE GitHub Repositories & Tools (2026)

A powerful C# Roslyn analyzer that uses static analysis to detect bugs, surface security issues, and enforce best practices—helping developers and AI write more reliable code.

Library for counting the lines of code in PHP source code

Gentle Shell is a Pi-native coding-agent harness for controlled development with Organic Driven Development, optional SDD/OpenSpec, subagents, TDD evidence, review guardrails, skills, and memory integrations.

Low-level agentic design patterns. Turning old engineering wisdom into reflexes your agent reaches for on its own—on any agent.

Easily install and test mobile applications with a single click.

Salesforce Extensions for VS Code

Microsoft Build Accelerator

Microsoft Quantum Development Kit, including the Q# programming language, resource estimator, and Quantum Katas

DevSkim is a set of IDE plugins, language analyzers, and rules that provide security "linting" capabilities.

Opensource, on-device voice + vision layer for AI agents. Bring any model or coding agent; the whole speech loop (VAD, STT, TTS, barge-in) runs locally. An open alternative to ElevenLabs Agents, Gemini Live, and OpenAI Realtime.

AI writes code. This automates everything else · 24 plugins · 49 agents · 44 skills · for Claude Code, OpenCode, Codex, Cursor, Kiro.

The next generation of tooling for Spring Boot, including support for Cloud Foundry manifest files, Concourse CI pipeline definitions, BOSH deployment manifests, and more... - Available for Visual Studio Code, Cursor, Eclipse, and Theia

Free up your Mac, safely. Clears the cache and junk it piles up on its own. Open source, and everything goes to the Trash, so nothing is ever lost.

JavaScript architecture diagrams and dependency graphs

Open-source design-method engine for Claude Code, Codex & Cursor. 23 agent skills for fixed design judgment, multiple grammars, semantic palettes, reference compilation, and evidence-verified UI. MIT.

PHP_Depend is an adaptation of the established Java development tool JDepend. This tool shows you the quality of your design in terms of extensibility, reusability and maintainability.

A tool which helps you diff xcodeproj files.

Power BI AI skills and Power BI agents for Claude Code and GitHub Copilot: a plugin marketplace of Power BI skills, subagents, and hooks for semantic models, DAX, TMDL, reports, and AI dashboards. Includes Microsoft Fabric skills and Fabric agents. Weekly updates.

A plugin marketplace for GitHub Copilot and other AI agents that provides Power Platform development plugins, including reusable skills, agents, and commands for building and deploying solutions.

Open-source desktop AI agent workspace with one-click Claude Code, Codex, OpenClaw, Hermes Agent setup and custom LLM model routing.