See also: https://github.com/mongodb-js/compass/pull/4877#pullrequestreview-1636071114

In the AI frontend we are checking if msgBody.length exceeds AI_MAX_REQUEST_SIZE.

Currently there are 2 issues with this solution:

• This validation limit can go out of sync with the server limits
• This validation is a catch-all that includes not only the user prompt but also other information like schema and potentially sample documents. As a result, the error handling is not correct and the error for the user might be confusing.

The 2 cases where the user prompt is exceeding limit vs the other data are too big should be handled differently: when the user prompt itself is too long users can simply shorten their prompt, when schema and docs are too large we should strip a subset of the data and let the server handle the rest of the validation.