When he returned, Firefox and Safari had opened on their own. Fable had built a custom screenshot tool: Python scripts to enumerate windows, filter for Safari, grab the window ID, and use screencapture CLI to grab PNGs.
Claude Fable 5 debugged a UI bug by writing its own screencapture automation, injecting JavaScript into templates, and spinning up a local web server — all without being asked to do any of it.
What happened next: Fable opened Firefox, then Safari, without any instruction to use browser automation. It wrote Python code to find Safari window IDs and screencapture them.
seungyoon shared on his igs this screencapture of treasure's group hug when they won at mcd today.. his caption with "😭"
he's surely genuinely one of the happiest for them..😭💙🩵