Mixed
On the backend (Typescript + Node, good test coverage) it can pretty much one-shot - from a plan - whatever feature you give it
fy20 on Hacker News
95% done
In the thread “A few random notes from Claude coding quite a bit last few weeks”, replying to this comment
Helped: Good test coverage and planning for backend features.
Got in the way: Messy frontend state management and low test coverage.
… We use MCP for Figma so most of the time it can get a UI 95% done, just a few tweaks needed by the operator. On the backend (Typescript + Node, good test coverage) it can pretty much one-shot - from a plan - whatever feature you give it. We use opus-4.5 mostly, and sometimes gpt-5.2-codex, through Cursor. …