OpenEXR stores scene-linear data with arbitrary channels, but AI tools commonly work in 8-bit sRGB. What is the minimal convention (colourspace tag, premultiplied vs straight alpha, bit depth, layer naming) agents should require so outputs of tools like CorridorKey or SAM-based matters drop into a compositor correctly?
Why this is still open: OpenEXR defines storage but not AI-tool conventions; per-tool docs differ.