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GUIDE · CODEX

A practical Skill shortlist for Codex

Choose a Skill for the work in front of you, not for a generic promise of autonomy. These candidates explicitly list Codex as native support and expose the tradeoffs you should inspect first.

The goal is a smaller, reviewable starting stack for Codex. Each card points back to the fuller profile, source evidence, and Agent-specific install guidance.

SELECTION ORDER

How to choose

Use a short sequence rather than installing a whole category at once. The important signal is the match between scope, access, and your current task.

  1. 01

    Start with the work type: code review, browser work, research, documents, or delivery

  2. 02

    Keep native Codex support separate from portable SKILL.md compatibility

  3. 03

    Prefer the least access needed for the first controlled test

  4. 04

    Treat a high score and popularity as evidence to inspect, not proof of safe behavior

REVIEWABLE CANDIDATES

Start with these candidates

Sorted from the same published SkillSignal metadata score used throughout the directory. Scores are signals, not safety approval.

Browser Automation96

agent-browser

Browser automation built for repeatable agent workflows.

Agent fit
Native
Main limitation
The checked-in SKILL.md is a discovery stub; full instructions come from the installed CLI version.
First risk
Browser-side actions · High
Code Review & Testing96

frontend-design

Design constraints that push generated interfaces beyond generic AI UI.

Agent fit
Native
Main limitation
Aesthetic judgments remain subjective and still need stakeholder review.
First risk
Style over function · Medium
Documents & Data95

spreadsheets

Build, analyze and verify spreadsheet files with formula-aware workflows.

Agent fit
Native
Main limitation
Detailed package files are not fully catalogued.
First risk
Review before install · Medium
Documents & Data94

documents

Create and edit professional Word documents with visual verification.

Agent fit
Native
Main limitation
Detailed package files are not fully catalogued.
First risk
Review before install · Medium
Code Review & Testing94

web-design-guidelines

Review interfaces against practical web design and accessibility rules.

Agent fit
Native
Main limitation
It depends on network access and a live guideline document whose contents can change over time.
First risk
Rule drift or context-free findings · Medium
Code Review & Testing93

grill-me

Relentless decision interviews for sharper plans and designs.

Agent fit
Native
Main limitation
A relentless interview can be tiring and disproportionate for small, reversible decisions.
First risk
Decision fatigue · Low

DECISION BOUNDARY

What this guide does not prove

A clear install path does not validate the full runtime behavior of a Skill with Codex. Review its instructions and test it in a controlled project before relying on it.

KEEP EXPLORING

Need a more exact match

Use the directory matcher to combine your task, system, permission limit, price preference, and Codex fit. It uses deterministic rules and metadata only.

Open the Skill matcher