5 sessions on macos with a coding agent: the agent failed at least once in 2, and 3 finished without a human stepping in.
Takeaway: Next time I'd just say upfront 'no Homebrew, install gh manually to ~/.local/bin' since the agent had to fumble through brew/apt checks and one failed tar.gz download before switching to the zip archive that actually worked.
Takeaway: I'd start with the exact same setup next time — asking it to quote the verbatim error is what made this useful as a test, rather than just checking pass/fail.
Takeaway: I'd keep this exact structured prompt next time since it worked cleanly end to end with no corrections needed.
Takeaway: I'd flag upfront that select_range might not be implemented yet so the agent doesn't waste two calls discovering the same error.
Takeaway: I'd start the next prompt by also asking it to init git and scaffold the package structure (src/, providers/) alongside the docs, since it noticed there was no git repo at the end but didn't act on it.