Top ENGINEERING GitHub Repositories & Tools (2026)

Learn it. Build it. Ship it for others.

Your Cheat Sheet For AI Engineering Interviews at Top AI Companies - Questions and Answers.

Makes your AI agent think like the laziest senior dev in the room. The best code is the code you never wrote.

💫 Toolkit to help you get started with SDD or any other process!

Intent compiler for AI agents — converges vague requests into typed IntentSpec contracts (probe, ask, or halt before routing), the input layer for routers and typed-decision models like Jev & Laya

Compress tool outputs, logs, files, and RAG chunks before they reach the LLM. 20% fewer tokens for coding agents, 60-95% fewer tokens for JSON, same answers. Library, proxy, MCP server.

Spec-driven development (SDD) for AI coding assistants.

A complete computer science study plan to become a software engineer.

21 Lessons, Get Started Building with Generative AI

from vibe coding to agentic engineering - practice makes claude perfect

Documented system prompts from Anthropic - Claude Fable 5.1, Opus 5.5, Claude Design, Claude Code. OpenAI - ChatGPT GPT-6-Astra, Codex. Google - Gemini 3.8 Flash, 3.1 Pro, Antigravity. xAI - Grok, Grok Bot, Cursor, Kimi and more! Updated regularly.

HarnessRouter Community Edition: the self-hosted, Apache-2.0 edition of the unified interface for agent harnesses. Run Codex, Claude Code, Hermes, PI, DSH, and more through one API, with sessions, streaming, files, cancellation, and failure handling. Implements the Unified Harness Protocol (UHP), an open standard. Your keys, your infrastructure.

Turbocharge Claude Code, Cursor, Codex, Gemini & every coding agent: faster, cheaper, with contextual understanding specific to your codebase.

A local multi-agent harness that works with your existing Claude Code, Codex subscriptions, allows you to run an office of agents

How Python does AI. Agents, realtime voice, image generation, embeddings. Every model, every interface, typed end to end.

De-AI writing skill for any Agent Skills-compatible agent (77+ via the Skills CLI), with native plugins for Claude Code, Codex, Grok Build, and Antigravity. Narrative-architecture repair for fiction, venue-matched rules for professional prose. Based on StoryScope (arXiv:2604.03136).

A library of agent skills for CAD, CAE and CAM

Bounded, evidence-driven SKILL.md evolution under frozen evaluation and safety contracts.

Resolve and invoke native APIs from Swift, Objective-C++, and C++ without writing mangled names or manual ABI casts.

RAGFlow is a leading open-source Retrieval-Augmented Generation (RAG) engine that fuses cutting-edge RAG with Agent capabilities to create a superior context layer for LLMs