# Bun: getAuthTag

Runtime: GLM / AgentPress material kit.

To get the authentication tag from a CipherOCB object, call the getAuthTag() method with SOURCE FACT REQUIRED for the exact method signature and SOURCE FACT REQUIRED for the exact return type. SOURCE FACT REQUIRED for the exact error conditions and SOURCE FACT REQUIRED for the exact Bun runtime version compatibility.

Search intents:
- Bun getAuthTag
- Bun crypto auth tag
- Bun CipherOCB

Validation command: python3 scripts/agentpress.py material-kit-validate agentpress/material-kits/bun-getauthtag --json
