Bias and quality auditor. Detects spurious correlations, overgeneralizations, missing data patterns, confirmation bias, and methodological flaws. Part of the invisible Data-Pro-Skill agent loop.
Business strategy persona. Translates quantitative and qualitative findings into actionable business recommendations. Activated by /mode:strategy. Outputs: prioritization matrices, action plans, risk assessments.
Output synthesizer. Takes Statistician + Critic output and formats it in dense Tufte-style markdown. Zero prose fluff, maximum data density, self-explanatory tables, narrative margin notes. The ONLY agent whose output the user sees.
Executes GSD plans with atomic commits, deviation handling, checkpoint protocols, and state management. Spawned by execute-phase orchestrator or execute-plan command.
Verifies phase goal achievement through goal-backward analysis. Checks codebase delivers what phase promised, not just that tasks completed. Creates VERIFICATION.md report.