Best of · updated
Best Codex Skills in 2026
Eight skills whose own documentation covers Codex, and what each one is for.
Edited by hand at Open Skills
How we picked
We have not yet tested these skills first-hand in Codex, and this list does not claim otherwise. Each one was chosen on things we can check: how widely it is used and searched for, whether its repository is still being maintained, and what it does according to its own SKILL.md and documentation.
Codex skills build on the same open Agent Skills standard as Claude skills, so most published skills can be installed in either. To keep this list specific, every entry is a skill whose own README names Codex in its installation or compatibility notes.
The order runs from general to specialised and is not a verdict on quality. First-hand notes are added to each entry as we review it, and an entry that has one shows it under the summary.
A full software development workflow for coding agents, built from composable skills for brainstorming, planning, TDD, debugging and review.
Best for: a full development method in one install, covering brainstorming, planning, test-driven development and debugging.
$ npx skills add obra/superpowersResearches what people have said about a topic in the last 30 days across Reddit, X, YouTube, TikTok, Hacker News and the web.
Best for: researching what people have said about a topic in the last 30 days across Reddit, X, YouTube, Hacker News and the web.
$ npx skills add mvanhorn/last30days-skillGives an agent UI and UX design guidance for web, mobile and desktop: styles, palettes, typography, accessibility and layout.
Best for: giving the agent a searchable reference of styles, palettes and font pairings to choose from.
$ npx skills add nextlevelbuilder/ui-ux-pro-max-skillDesigns, critiques, audits and polishes frontend interfaces through a set of commands, from shaping a brief to final refinement.
Best for: raising the design quality of the interfaces Codex builds.
$ npx skills add pbakaus/impeccableRewrites AI-sounding text so it reads like a person wrote it, removing common AI tells without changing the meaning.
Best for: editing drafts so they stop reading as AI-written.
$ npx skills add blader/humanizerSwitches the agent to an ultra-compressed way of talking that cuts output tokens while keeping technical accuracy, in several levels.
Best for: long sessions where shorter replies save output tokens.
$ npx skills add JuliusBrussee/cavemanSteers an agent away from templated-looking frontends: it reads the brief, picks a design direction and builds landing pages and redesigns.
Best for: front-end work where layout, typography and spacing need more care.
$ npx skills add Leonxlnx/taste-skill --skill design-taste-frontendA browser automation CLI for AI agents: navigate pages, fill forms, click buttons, take screenshots and extract data.
Best for: browser tasks driven from the command line, such as filling forms, taking screenshots and extracting data.
$ npx skills add vercel-labs/agent-browserInstall them
$ npx skills add <owner>/<repo> -a codexEach skill page has the repository to use. Some of these also ship as Codex plugins; the skill's own README has those steps.