All three live in Settings. Together they stop you from re-explaining yourself in every conversation.
Custom instructions
Under Personalization in Settings. One place to write how you want the Agent to work: your style, your rules, the things you repeat every time.
It travels with you into every chat. Good things to put there:
Your brand colors and fonts
Formats you always need, like vertical first
What to avoid: no text on screen, no faces, no stock look
How you like to be talked to: show options, or just make a call
Memory
The Agent remembers things worth carrying forward: your brand, a character you keep coming back to, a decision you made, a constraint you work under, a preference about how you like things done.
Memories come from 3 places: some are picked up as you work, some from what you told us when you signed up, and you can write your own.
Under Memory in Settings you can:
Read every memory
Edit one
Switch a single one off without deleting it
Pause memory entirely for a while
Memory is scoped
A memory can apply to everything you do, to one project, or to one flow. The most specific one wins. A project level rule takes over from your general one while you are in that project, and stops applying the moment you leave.
This is how you keep one client's rules from leaking into another's work.
Skills
A skill is a set of instructions the Agent reaches for when the work calls for it, so you are not writing the same brief twice.
The built in library
Grouped in 3 categories:
End to end. Whole pieces: a music video, an ad, a visualizer, a release pack.
Directors. The roles it works through first: the brief, the scenes, the motion.
Craft. One thing at a time: a prompt, a visual document, a clip, a spoken line, a style, a preset, a model choice.
You can switch any built in skill off.
Writing your own
Under Skills in Settings. A custom skill has:
A name
A short line describing when to use it
The instructions themselves
Keywords
Reference assets for the Agent to look at
The description line matters most. It is what the Agent uses to decide whether to reach for the skill, so write it for someone who has to choose. "Use when building a lyric video for a Latin pop release" beats "lyric video skill".
Your own skills sit alongside the built in ones, and each has its own on and off switch.
What to set up first
Custom instructions with your brand basics and your default format.
One skill for the thing you make most often.
Check Memory after a week and switch off anything that is not true.