The return of the Crapometer is a month away and already I'm getting the "snakes" (Snark plus shakes equal snakes.). If a manuscript has 16 chapters and the synopsis is limited to fewer than 1,000 words, you obviously can't detail every chapter. Does one just take broad swipes at the narrative thread, possibly grouping three of four chapters in every paragraph of the synopsis?
This is probably one of those situations where there is no single "right way," but Miss Snark is already sharpening her stilettos for the multitude of "wrong ways." How will the poor snarklings ever survive?
Survive? Ohh....I never thought of that as a goal. What a novel idea!
Synopsis is not a detailed outline.
It's broad strokes about plot and character with a focus on how those things MOVE.
You shouldn't need more than 1000 words, four pages for anything unless you're channeling George RR Martin.