GitHub Copilot code review

GitHub Copilot is an AI-powered software-development tool created by GitHub, owned by Microsoft, in collaboration with OpenAI. It suggests code completions, whole-line and whole-function snippets, documentation, and software changes for review by an experienced engineer in supported editors and IDEs. Its workflow includes inspecting changes line by line, assessing architectural correctness, and coordinating work with other pull requests. It is offered as a commercial subscription integrated with Visual Studio Code, Visual Studio, JetBrains IDEs, and GitHub Codespaces.

GitHub Copilot coding agent is an autonomous coding agent on GitHub's platform. It can be delegated coding work from the command line or other interfaces, then take action on repositories in the background. GitHub describes the GitHub.com surface as supporting repository exploration, change planning, and delegation of coding tasks without leaving GitHub.com.

An AI-powered code-review platform that automatically analyzes pull requests in repositories hosted on platforms such as GitHub and GitLab, producing review comments, summaries, and suggestions within source-control and code-hosting workflows.

Open Code Review is an open-source, AI-powered command-line code-review tool developed from Alibaba Group’s internal review assistant. It reads Git diffs and sends changed files to a configurable LLM through an agent with tool-use capabilities; the agent can read complete files, search the repository, and inspect other changed files for context before producing structured comments tied to source lines. Its hybrid architecture combines deterministic engineering with dynamic agent decisions: deterministic stages select and bundle files, match rules to file characteristics, and apply independent comment-positioning and reflection modules, while scenario-specific prompts and tools guide context retrieval and review. The `ocr scan` command audits complete files or directories without requiring a meaningful diff, and the project provides multilingual rules for issues including null-pointer exceptions, thread safety, cross-site scripting, and SQL injection. It supports configurable model endpoints, including OpenAI- and Anthropic-compatible endpoints, and requires Git 2.41 or newer.