C++, marked
Every repository here has at least 1,000 stars and was marked against the same scheme. Curated lists, books, and tutorials are marked separately and left out, since asking whether an agent can install a list of links means nothing.
The class as a whole
873
repositories marked
63
median mark out of a hundred
37%
have no test command an agent can find
35%
ship an AGENTS.md
Seeded from the 864 most-starred repositories on 25 August 2026 and re-marked since. Figures current to 10 October 2026.
| Repository | MD | Language | Added | Stars | Mark | ||
|---|---|---|---|---|---|---|---|
| 1 | electron/electron :electron: Build cross-platform desktop apps with JavaScript, HTML, and CSS | ~ | C++ | 25 Aug | 123k | 85 | A |
| 2 | LizardByte/Sunshine Self-hosted game stream host for Moonlight. | ✓ | C++ | 25 Aug | 42k | 83 | A- |
| 3 | ggml-org/llama.cpp LLM inference in C/C++ | ✓ | C++ | 25 Aug | 131k | 74 | B+ |
| 4 | duckdb/duckdb DuckDB is an analytical in-process SQL database management system | ✓ | C++ | 25 Aug | 42k | 74 | B+ |
| 5 | react/react-native A framework for building native applications using React | ✓ | C++ | 25 Aug | 127k | 73 | B+ |
| 6 | hyprwm/Hyprland Hyprland is an independent, highly customizable, dynamic tiling Wayland compositor that doesn't sacrifice on its looks. | ✓ | C++ | 25 Aug | 39k | 73 | B+ |
| 7 | carbon-language/carbon-lang Carbon Language's main repository: documents, design, implementation, and related tools. (NOTE: Carbon Language is experimental; see README) | ✓ | C++ | 25 Aug | 34k | 69 | B |
| 8 | ggml-org/whisper.cpp Port of OpenAI's Whisper model in C/C++ | ✓ | C++ | 25 Aug | 54k | 63 | B |
| 9 | grpc/grpc C++ based gRPC (C++, Python, Ruby, Objective-C, PHP, C#) | ✓ | C++ | 25 Aug | 45k | 63 | B |
| 10 | tesseract-ocr/tesseract Tesseract Open Source OCR Engine (main repository) | ~ | C++ | 25 Aug | 77k | 60 | B- |
| 11 | LadybirdBrowser/ladybird Truly independent web browser | · | C++ | 25 Aug | 66k | 58 | B- |
| 12 | ClickHouse/ClickHouse ClickHouse® is a real-time analytics database management system | ✓ | C++ | 25 Aug | 50k | 58 | B- |
| 13 | zen-browser/desktop Welcome to a calmer internet | · | C++ | 25 Aug | 45k | 58 | B- |
| 14 | microsoft/terminal The new Windows Terminal and the original Windows console host, all in the same place! | ✓ | C++ | 25 Aug | 105k | 56 | B- |
| 15 | microsoft/WSL Windows Subsystem for Linux | ~ | C++ | 25 Aug | 34k | 56 | B- |
| 16 | qbittorrent/qBittorrent qBittorrent BitTorrent client | ✓ | C++ | 25 Aug | 41k | 51 | C+ |
| 17 | BVLC/caffe Caffe: a fast open framework for deep learning. | · | C++ | 25 Aug | 35k | 51 | C+ |
| 18 | TheAlgorithms/C-Plus-Plus Collection of various algorithms in mathematics, machine learning, computer science and physics implemented in C++ for educational purposes. | · | C++ | 25 Aug | 35k | 48 | C+ |
| 19 | google/leveldb LevelDB is a fast key-value storage library written at Google that provides an ordered mapping from string keys to string values. | · | C++ | 25 Aug | 39k | 47 | C |
| 20 | aria2/aria2 aria2 is a lightweight multi-protocol & multi-source, cross platform download utility operated in command-line. It supports HTTP/HTTPS, FTP, SFTP, BitTorrent and Metalink. | · | C++ | 25 Aug | 43k | 46 | C |
| 21 | bitcoin/bitcoin Bitcoin Core integration/staging tree | · | C++ | 25 Aug | 90k | 43 | C |
| 22 | google-ai-edge/mediapipe Cross-platform, customizable ML solutions for live and streaming media. | · | C++ | 25 Aug | 37k | 43 | C |
| 23 | aristocratos/btop A monitor of resources | · | C++ | 25 Aug | 35k | 43 | C |
| 24 | nomic-ai/gpt4all GPT4All: Run Local LLMs on Any Device. Open-source and available for commercial use. | · | C++ | 25 Aug | 77k | 42 | C |
| 25 | nlohmann/json JSON for Modern C++ | · | C++ | 25 Aug | 51k | 42 | C |
| 26 | microsoft/BitNet Official inference framework for 1-bit LLMs | · | C++ | 25 Aug | 40k | 42 | C |
| 27 | aseprite/aseprite Animated sprite editor & pixel art tool (Windows, macOS, Linux) | · | C++ | 25 Aug | 40k | 40 | C |
| 28 | godotengine/godot Godot Engine – Multi-platform 2D and 3D game engine | · | C++ | 25 Aug | 118k | 39 | D |
| 29 | WerWolv/ImHex 🔍 A Hex Editor for Reverse Engineers, Programmers and people who value their retinas when working at 3 AM. | · | C++ | 25 Aug | 55k | 39 | D |
| 30 | google/googletest GoogleTest - Google Testing and Mocking Framework | · | C++ | 25 Aug | 40k | 39 | D |
| 31 | SerenityOS/serenity The Serenity Operating System 🐞 | · | C++ | 25 Aug | 34k | 39 | D |
| 32 | x64dbg/x64dbg An open-source user mode debugger for Windows. Optimized for reverse engineering and malware analysis. | · | C++ | 25 Aug | 50k | 38 | D |
| 33 | facebookresearch/faiss A library for efficient similarity search and clustering of dense vectors. | · | C++ | 25 Aug | 41k | 38 | D |
| 34 | CMU-Perceptual-Computing-Lab/openpose OpenPose: Real-time multi-person keypoint detection library for body, face, hands, and foot estimation | · | C++ | 25 Aug | 34k | 38 | D |
| 35 | tensorflow/tensorflow An Open Source Machine Learning Framework for Everyone | · | C++ | 25 Aug | 201k | 34 | D |
| 36 | protocolbuffers/protobuf Protocol Buffers - Google's data interchange format | · | C++ | 25 Aug | 72k | 34 | D |
| 37 | opencv/opencv Open Source Computer Vision Library | · | C++ | 25 Aug | 91k | 33 | D |
| 38 | Light-City/CPlusPlusThings C++那些事 | · | C++ | 25 Aug | 44k | 31 | D |
| 39 | FreeCAD/FreeCAD Official source code of FreeCAD, a free and opensource multiplatform 3D parametric modeler. | · | C++ | 25 Aug | 34k | 31 | D |
| 40 | zhongyang219/TrafficMonitor 这是一个用于显示当前网速、CPU及内存利用率的桌面悬浮窗软件，并支持任务栏显示，支持更换皮肤。 | · | C++ | 25 Aug | 46k | 30 | D |
| 41 | ocornut/imgui Dear ImGui: Bloat-free Graphical User interface for C++ with minimal dependencies | · | C++ | 25 Aug | 77k | 29 | F |
Mark yours.
Two API calls. Nothing cloned, nothing executed, no account.