I'm not familiar with a Magic: The Gathering keyword or ability called "Sage Project." This doesn't appear to be an official MTG keyword, ability word, or mechanic that I can reliably describe.
It's possible you're thinking of:
- A specific card name rather than a keyword
- A custom or fan-made mechanic
- A misremembered name for an actual ability (perhaps "Sagas," which are enchantments with lore counters that trigger chapter abilities over several turns?)
If you can give me more context—like where you saw it, a card it appears on, or what set it's from—I'd be happy to help. Alternatively, if you meant Sagas or another real mechanic, let me know and I'll give you a proper rundown including the rules nuances and Commander relevance.
I'd rather admit uncertainty than invent rules that could mislead you at the table.