One cut per platform. Never one file reused.
Each network shows a post differently. The assistant makes a version for each, laid out for what that app actually puts on screen.
What goes wrong with one file
A tall video made for one feed is cropped in another. Words placed near the edge end up under the like and share buttons. A "link in bio" line appears on a network where there is no bio link, so the viewer has nowhere to go.
How each post is made to fit
The right shape
A platform specification sets the ratio, safe zones, caption length and link rule for each network, and every render reads it.
Safe zones drawn, not guessed
Each cut is previewed with that platform's header, buttons and caption area marked before anyone sees it.
Call to action in the right place
The call to action goes in the post text or a comment, as each platform needs. It is never burned into the video.
Your brand, from your files
Logo, colours and fonts come from your own brand kit, never lifted from an old video.
An example, described
A tall 9:16 reel posted to a LinkedIn feed was cropped, and its last frame said "link in bio". The fix: a 4:5 version laid out inside LinkedIn's safe area, the brand mark from the original logo file, and the link moved into the post text. That fix is now a rule the assistant applies to every post.
Described without client material, by choice.