The Agent Skills Directory

[SAFE]: The skill implements standard and documented WooCommerce extension patterns. It uses official classes like WC_Coupon and WC_Discounts as intended by the platform.
[SAFE]: Input handling includes proper sanitization. For example, the code uses wc_format_coupon_code() for coupon codes and sanitize_key(wp_unslash(...)) for administrative metadata, which are standard security practices in the WordPress ecosystem.
[SAFE]: The documentation explicitly warns against common pitfalls such as basing calculations on mutable session data, making network requests in hot calculation loops, and accepting customer-submitted facts at checkout.
[SAFE]: Concurrency and race conditions in usage accounting are addressed by recommending the use of native WooCommerce tentative holds and idempotent status transitions.

wc-coupon-types-rules