So what'd your prompt look like, out of curiosity? I hear about all these things that sound quite impressive, but no one ever seems to want share any info on the prompts to learn or gain insight from.
It was nothing special. I can't seem to pull up the initial prompt, but it was something like this:
> Build a thorough test suite for JMAP in this directory. The test suite will be run against multiple JMAP servers, to ensure each server implements the JMAP spec consistently and correctly. In this directory are two files - rfc8620.txt and rfc8621.txt. These files containing the JMAP core and JMAP email specs. Read these files. Then make a list of all aspects of the specifications. For each, create a set of tests which thoroughly tests all aspects of a JMAP server's behaviour specified by the RFCs, including error behaviour. The test suite should be configurable to point at a jmap server & email account. The account will contain an empty mailbox (error if its not empty). The test suite starts by adding a known set of test emails to the account, then run your tests and clear the inbox again. Write the test suite in typescript. The test runner should output the report into a JSON file. Start with a project plan.
If you haven't tried claude code or openai's codex, just dive in there and give it a go. Writing a prompt isn't rocket science. Just succinctly say the same things you'd say to a very competent junior engineer when you want to brief them on some work.
