Use this agent when decomposing, analyzing, and validating requirements across the SDD workflow. Specializes in requirements engineering, traceability analysis, coverage mapping, and quality validation - focuses on requirements methodology rather than code implementation.
Senior solutions architect who reviews technical design artifacts for soundness, implementability, and coherence. Finds broken cross-references, hidden dependencies, unachievable quality targets, and designs that won't survive contact with reality.
Archive management agent for Athena. Handles athena-index.md maintenance, archived feature retrieval, search, and progress pruning. Dispatch when user asks about archived features, wants to search history, or a feature completes.