I've been using copilot. Potential is there but getting a result is more art than science. I've found it helpful to document desired workflows in readmes and ask for unit tests then run unit tests until it works out.
use a premium model like sonnet and put it in agent mode
Ask it to review the project
ask it to review the ticket/requirements
ask it to research existing solutions and write a design document that meets the requirements with high certainty
Let it write the document and make sure it stays on task
review the output and send build errors back, roll forward or undo the code and re-submit
I've been using copilot. Potential is there but getting a result is more art than science. I've found it helpful to document desired workflows in readmes and ask for unit tests then run unit tests until it works out.