# CarrySkills v3.9.1 — Business Documentation

CarrySkills moves from a portable Skill catalog toward an **active cross-AI workbench** while preserving the low-cost Bring Your Own Account model.

The product now supports a simple loop:

**Task → Skill Recipe / Active Skill stack → Safety preflight → AI-specific prompt → user's own AI account → reusable Skill/stack downloads**

This increases practical daily value without requiring CarrySkills to resell OpenAI, Anthropic, Microsoft, Google, Cursor, or other model usage.

Key product differentiators in v3.9.1:
- portable `SKILL.md` remains a first-class artifact;
- users can keep an Active Skill stack for ongoing work;
- safety is configurable but never fully disabled;
- powerful Skills are distinguishable from malicious/blocked Skills;
- workspace task persistence is opt-in for privacy;
- the same Skill team can be carried between ChatGPT, Claude, Copilot, Cursor, Gemini, Codex, and other environments.

This creates a path toward future multi-engine orchestration while keeping users in control of their own accounts and costs.


## Operational reliability
CarrySkills treats AI instructions as portable product assets and software releases as immutable versioned packages. WPWriter-only direct delivery reduces manual update friction while complete rollback artifacts reduce the operational risk of frequent AI-assisted iteration.