Claude Code

There are many AI coding assistants that run as IDE plugins, but Claude Code takes a somewhat different approach. It lives in the terminal, reads the entire project's file structure, dependencies, and commit history, then handles everything from file editing to running tests and creating pull requests based on the developer's instructions. It feels almost like having a "pair programmer with full codebase context" right in your terminal.

One standout feature is its integration with the Agent SDK. Developers can reuse Claude Code's toolset as a foundation for building custom automation workflows. For example, a sequence like "read an Issue, write a fix, pass the tests, and open a PR" can be automated with human approval checkpoints along the way.

It also supports multi-agent functionality, where a lead agent breaks tasks into subtasks and assigns them to multiple Claude Code instances running in parallel, then merges the results. This is particularly powerful for large-scale refactoring and cross-cutting changes.

It also supports MCP (Model Context Protocol), so by connecting external services like Supabase or Slack as tools, you can perform database operations and send messages directly from the terminal.

My team uses it on a daily basis, and we've genuinely noticed fewer rework cycles — especially for self-review before code reviews and for automating the addition of tests.