Wozniacki arrived in Paris on the back of a miserable European clay court season that had seen her fall at the first hurdle in Stuttgart, Madrid, Rome and Brussels.
However, against Robson, Wozniacki barely put a foot wrong, her trademark metronome-like consistency and razor-sharp movement were back in full working order as she produced one of her best performances of the season to run out a 63 62 winner.
"Laura is a great girl, and I know her very well," Wozniacki said of Robson, who she trains alongside in Sven Groeneveld's adidas development program. "I know how she plays and what to expect, and I was just trying to do the things I had to do out there.
Yet out on Suzanne Lenglen, Wozniacki absorbed Robson's best shots before hitting back with the sort of flawless counterpunching that took her to the top of the rankings a few years back. After snuffing out break points in her opening two service games, Wozniacki capitalized on a flurry of double faults from the Briton to move 3-1 ahead.
Chances for Robson from then on were few and far between, the Dane breaking once more en route to the first set, before striking again at the start of the second thanks to a brilliant lob followed by a backhand drive-volley.
One thumping forehand earned Robson a break back, but Wozniacki reeled off the final two games to advance into the second round for the sixth successive year.
Here she will meet Bojana Jovanovski, who booked her spot with a 63 62 win over Barbora Zahlavova Strycova. Jovanovski was responsible for one of Wozniacki's four opening round defeats on the clay, snatching victory from the jaws of defeat in a three set thriller in Rome.
"I managed to break her a couple of times in both sets, and I'm just happy to be through and feeling like I'm getting into the tournament," Wozniacki said. "I'll try to take one match at a time. I have a day off tomorrow and am looking forward to coming back on Wednesday.
"I love it here the fans are amazing. It's always such a great atmosphere and they really make the tournament."