Skill Claude CodeCodex
How to write idiomatic assertions with the Bupkis assertion library for TypeScript and JavaScript.
Skill Claude CodeCodex
How to write idiomatic assertions with the Bupkis assertion library for TypeScript and JavaScript.
Skill Claude CodeCodex
Demonstrates skill structure with progressive disclosure and best practices for skill development.
Skill Claude CodeCodex
Format git commit messages correctly, avoiding HEREDOC syntax issues in favor of multiline strings.
Skill Claude CodeCodex
Manage git-tracked directories correctly - never create .gitkeep files in directories that will immediately contain tracked files.
Skill Claude CodeCodex
Use this skill when asked to perform an interactive git rebase programmatically, absorb/fixup commits into other commits, squash commits together, reorder commits, or drop commits. Provides a portable approach that works on macOS and Linux without interactive user input.
Skill Claude CodeCodex
Expert guidance on testing XState v5 Actors using xstate-audition library for comprehensive state machine and actor testing.
Skill Claude CodeCodex
Expert guidance for implementing and analyzing XState v5 state machines with TypeScript support and best practices.
Skill Claude CodeCodex
Expert guidance on Zod v4 validation library including breaking changes from v3, migration patterns, core API usage, and common validation patterns. Use when working with Zod schemas, validation, type inference, or migrating from Zod v3.