voltagent-core-referencelisted

# voltagent-core-reference Reference for VoltAgent class. ## When to use See description. ## Workflow 1. Understand the task and check project context. 2. Follow the source skill steps for this domain. 3. Verify output and commit. ## Verification - [ ] Task completed per source skill checklist - [ ] Tests pass and no regressions ## References - Source: upstream composite