anomalyco/opencode
opencode is an open-source coding agent, written in TypeScript and released under the MIT licence. You point it at your code and ask it to read, explain or change things.
Why it matters now
With 222,599 stars it is already large, and it still added 4,334 stars this week, placing #9 on GitHub's weekly trending list [2]. The repo was pushed to on 28-10-2026 [1].
Try it in 10 minutes
You need: A small project under git, so you can undo changes
Open anomalyco/opencode on GitHub and install it with the method the README gives for your system.
Start opencode inside your project folder and connect a model provider as the README describes.
Ask it to explain one file, then to make one small change.
opencode explains the file and edits it, and the change shows up in git diff.
What it replaces or competes with
- Closed-source coding agents opencode is open source under MIT, so you can read and change the agent itself.
Sources
- anomalyco/opencode on the GitHub API read 28-10-2026
- Trending repositories on GitHub this week read 28-10-2026
Written by AI from these sources and checked against each of them on 28-10-2026. Spotted a mistake? Tell us.