"""Verifier task implementations — populated in Phase 1.

Subpackages:
- tau2/   — τ²-bench verifiers (retail, airline, policy)
- web/    — WebArena/TheAgentCompany verifiers
- aiv/    — Agentic interactive verifiers (VAGEN-derived)
- rubric/ — Rubric-based soft verifiers (Simonds-derived)
- code/   — Code quality verifiers (Zeno-derived)
"""
