Read on Twitter
Thread of people taking about Camila’s writing, melody, working with her in general:
The Futuristics
Well, him saying she’s the real deal isn’t anything descriptive but I’ll assume he witnessed what everyone in this thread witnessed lol
Benny Blanco when he first worked with her
Another example of her freestyling and coming up with the concept
Finneas
Savan... I can’t with his kid calls her Stinky 
Shawn saying the same as Savan about her ability to pour her heart into her songs and Zane talking about her focus & dedication to her craft 
Dave talking about her ability for storytelling and coming up with concepts as well as her as a full package
Louis on being brought in to work with her on her debut after helping with Havana
Mark Ronson about Find U Again with her writing the verses over the pre-existing melody
To go along with the tweet above about her writing the verses for Find U Again, compliments on her writing
“I'm like, 'Oh my God her voice sounds so amazing and the song sounds so amazing.' So it's like a pinch myself moment." https://twitter.com/Beats1/status/1189090240641802240/video/1
Charli talking about her being a great topline writer
Camila changing up the demos the music group came up for the riff off
Mark had a demo with some chords and a melody for Find U Again. He sent her the track and she wrote the chorus and verses.
Charli talking about her being a topline writer and having a ear for melodies
Jon Bellion, working on shameless & liar
Shawn praising her writing in IKWYDLS
Finneas talking about her being clear on what she wanted
Jhart talking about Camila being active in her songs as well as mentioning even back in the group days she was very vocal about having lyrical ideas
“Musical genius” 
https://twitter.com/RyanTedder/status/849489461255827457
https://twitter.com/RyanTedder/status/849489461255827457
Ryan working with her on her debut
“Her songwriting skills are unbelievable," he added. "It’d be an injustice if she didn’t write her whole album, or co-write it, because she’s such a good writer”
“Her songwriting skills are unbelievable," he added. "It’d be an injustice if she didn’t write her whole album, or co-write it, because she’s such a good writer”
“Her songwriting skills are unbelievable—if a lyric is a B+ she can spot it. She’ll go, ‘No, let’s change it.’”
The guy who edited her MasterCard session. Him incorporating all the little things she does and saying it just shows a measurement of her talent 
