XRefKit

Structure brownfield change work across requirements, planning, design, manufacturing, and testing by re-organizing upstream items into phase results, decisions, unknowns, evidence, gates, and handoffs. Use when an existing codebase or system must be changed without treating its current implementation as the complete specification.

Run isolated calibration and drift evaluations for PyPI-distributed XRefKit Skills. Use when installed Skill packages expose evaluation manifests and the evaluator must run fixtures repeatedly without revealing expected answers, calibration rules, or held-out cases to the evaluated Skill.

Analyze change impact and combination regression for existing C# batches backed by SQL Server stored procedures.

Analyze change impact and combination regression for existing C# batches backed by SQL Server stored procedures. Use when a business requirement changes a batch whose rules, validation, calculations, updates, or combination validity may be split between C# and SQL Server, especially when the candidate space is large and no formal test dataset exists.

Create repository-ready marketing explainer videos from a message flow using staged slide reveals, dialogue-style narration, HTML/CSS slide rendering, TTS audio, licensing credits, preview pages, and README/video placement. Use when Codex is asked to make or revise a short explanatory video, overview video, narrated slide video, Japanese/English marketing video, or README-linked product video.