after-effects-cep-panel

Create a directory with CSXS/manifest.xml declaring the AEFT host, a client folder with index.html and CSInterface.js, and a host folder with ExtendScript logic. Install it in the Adobe CEP extensions folder and enable debug mode in After Effects.

Use csInterface.evalScript() from the client to call host ExtendScript functions with JSON-serialized parameters. For host-to-client messaging, dispatch CSXSEvent objects with typed event names and JSON payloads.

Missing panels usually result from invalid manifest XML, wrong installation path, or disabled debug mode. Validate the manifest syntax, confirm the extension folder is under Adobe/CEP/extensions, enable debugging in After Effects, and restart the application.

Yes, through a bridge architecture like PyShiftBridge using named pipes or sockets with a mailbox JSON fallback. The ExtendScript host sends requests to a Python daemon that routes them to registered handlers with argument validation and coercion.

CEP extensions with manifest version 5.0 support After Effects 2023 (v24.0) and later, with host version ranges like [13.0,99.9] covering broader compatibility. CEP Runtime 6.0+ is required on the system.