K0d3x

You can run STRIDE threat models, security sweeps with gitleaks and dependency audits, TDD red-green loops, mutation testing, code refactoring under test safety nets, changelog and release-notes generation, session checkpoints and handoffs, memory recall and consolidation, and self-taught curriculum lessons under ~/dev/learn/.

They target individual developers running Claude Code who want disciplined engineering practices: security-conscious engineers doing threat modeling and reachability triage, TDD practitioners, maintainers managing changelogs and releases, and self-taught learners running structured curricula with quizzes and exercises.

Each skill lives in its own folder with native frontmatter defining name, description, and allowed-tools (Bash, Read, Write, Edit). Drop the folder into your Claude Code skills directory, then trigger via slash commands like /threat-model, /code-sec, /tdd, /checkpoint, or natural-language phrases listed in each description.

Yes. The organization bio explicitly champions open source ('Open source helps you solve it faster'), and all 42 skills are published across 23 public repositories on GitHub under the k0d3x8its account, with no licensing fees or paid tiers indicated in the manifest.

Skills assume a Claude Code environment with Bash/Read/Write/Edit permissions. Specific dependencies include gitleaks and git-crypt for security skills, trello-cli for Trello sync, PlantUML/Mermaid renderers for diagrams, Proton Pass for key storage, and a ~/dev project layout with .memory/, .work/, and TODOS.md conventions.