File Formats

What .cerevisor, .cerevisor-world, and .opaal files contain, how they load, and when to use each.

Cerevisor uses three file extensions. All three are plain JSON; you can open them in any text editor, diff them in Git, email them to a colleague. .cerevisor : a single workflow The default format for a one-workflow file. Created when you click Save with one workflow open. What's inside: A JSON-serialized Workflow document, agents, columns, connections, settings, viewport state, version field "1.0" . When it's used: Most Cerevisor files. If you're working on one workflow at a time, this is what you save. Backward compat: Opens transparently as part of a one-workflow workspace. .cerevisor-world : a workspace of N workflows The format for multi-workflow workspaces (World View). What's inside: A JSON-serialized Workspace document: a list of WorkspaceWorkflow wrappers, each containing a full workflow plus its frame placement on the world canvas, accent color, folder path, and version field "1.0" . When it's used: When you've added more than one workflow to a workspace, or when you explicitly start with a .cerevisor-world save. Auto-wrap: When you open a single-workflow .cerevisor file, Cerevisor wraps it into a one-entry workspace in memory. Saving still writes back to the original .cerevisor unless you Save As. .opaal , legacy single-workflow The original extension used during the Opaal codename era (pre-rebrand). Identical structure to .cerevisor . When it's used: Only for backward compatibility. New saves always write .cerevisor unless you explicitly type .opaal in Save As. Loading: Transparent. Drag a .opaal file onto the Home Screen drop zone, or use Ctrl+O. It loads identically to a .cerevisor file. What's inside (high level) If you open any of these in a text editor, you'll see a JSON object with these top-level fields (single-workflow files; workspaces wrap this inside a workflows[] array): { "id" : "uuid" , "name" : "My Workflow" , "description" : "What this workflow does" , "version" : "1.0" , "createdAt" : "2026-05-17T10:00:00Z" , "updatedAt" : "2026-05-17T11:30:00Z" , "columns" : [ /* phases / waves */ ], "agents" : [ /* each agent's config */ ], "connections" : [ /* edges between agents */ ], "settings" : { "preamble" : "..." , "executionMode" : "sequential" , "includePermissions" : true , "nativeMode" : true , "permissions" : { /* permission flags */ } }, "metadata" : { "viewport" : { "x" : 0 , "y" : 0 , "zoom" : 1 } } } The id is a UUID. The version field is the file-format version, not the Cerevisor version. Cerevisor handles older file versions transparently, new optional fields use defaults when missing. Saving Action Shortcut Behavior Save Ctrl/Cmd+S If the workflow has a path, overwrite it. Otherwise prompt for a path. Save As Ctrl/Cmd+Shift+S Always p

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