Check if the parameters use SSH Agent for key derivation.
Note: SSH Agent key derivation is not yet functional in TypeScript. This function is useful for detecting envelopes locked by other implementations (e.g., Rust).
Check if the parameters use SSH Agent for key derivation.
Note: SSH Agent key derivation is not yet functional in TypeScript. This function is useful for detecting envelopes locked by other implementations (e.g., Rust).