29 reusable agent skills distilled from MIT's The Missing Semester of Your CS Education (2026), covering all nine lectures, installable with one click into Claude Code / dsh / OpenCode / Codex
AntheaLaffy/the-missing-semester-skills
Skill Claude CodeCodex
A guide to software testing, including unit tests for small pieces of code, integration tests for connected parts, and functional tests for complete behaviours. It also explains TDD, a method where tests are written before the code.
AntheaLaffy/the-missing-semester-skills
Skill Claude Code
A terminal tool for arranging multiple panes and windows while keeping sessions alive after you disconnect.
AntheaLaffy/the-missing-semester-skills
Skill Claude Code
A guide to managing software versions, dependency requirements, lock files, repeatable builds, upgrades, and rollbacks. It covers formats such as SemVer and CalVer, where SemVer uses major, minor, and patch numbers and CalVer uses dates.
AntheaLaffy/the-missing-semester-skills
Skill Claude Code
A skill for learning and using Vim-style editing, including modal editing, movement commands, editing commands, counts, and modifiers. Vim is a keyboard-driven text editor with separate modes for moving and changing text.
AntheaLaffy/the-missing-semester-skills
Skill Claude CodeCodex
A writing guide for explaining why software changes were made, so teammates and future maintainers can understand the decisions behind the code.
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: