export declare const CANVAS_EXTENSION_NAMES: readonly ["canvas-inbox-watcher", "canvas-stophook", "canvas-recap", "canvas-goal-capture", "canvas-passive-context", "canvas-context-intro", "canvas-doc-substrate", "canvas-structured-output", "canvas-bash-valve"];
/** Remove a complete persisted canvas prefix while retaining every genuine
 * caller/kind extra, including a custom extension whose basename happens to
 * resemble a canvas hook. */
export declare function customExtensionPaths(extensions: readonly string[] | undefined): string[];