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QualityJavaScript

Codex Test Review

by sd0xdev

Codex Test Review is a Quality skill for Claude Code, published by sd0xdev in sd0x-dev-flow.

188 stars24 forkson sd0xdev/sd0x-dev-flowAdded 2026/09/06Repository updated 2026/09/05
View source on GitHubDownload repo ZIP
agent-harnessclaude-codeclaude-code-plugincodexharness-engineeringskills
Install in seconds
Install Codex Test Review
Copy Codex Test Review into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.
terminal
npx degit https://github.com/sd0xdev/sd0x-harness/tree/main/skills/codex-test-review ~/.claude/skills/codex-test-review

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/sd0xdev/sd0x-harness.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file
skills/codex-test-review/SKILL.md in sd0xdev/sd0x-dev-flow
Installs to
~/.claude/skills/codex-test-review
Collection
One of 25 skills cataloged from this repository
Category
Quality — 1745 skills

What Codex Test Review does

Codex Test Review evaluates existing test coverage for sufficiency and suggests missing edge cases. Use it when reviewing tests rather than generating new ones.

Codex Test Review is cataloged under Quality on DirSkills. Codex Test Review comes from a repository tagged agent-harness, claude-code, claude-code-plugin, codex and harness-engineering.

Documentation

README

Codex Test Review

Thin entry-point skill — routes to the parent skill for full workflow.

Parent Skill

This skill delegates to test-review for the full test coverage review workflow, prompt templates, and sufficiency assessment.

See @skills/test-review/SKILL.md

Variant

This is the Review variant — evaluates existing test coverage and suggests gaps.

Trigger

  • Keywords: test review, review tests, test coverage, test sufficiency, codex-test-review

When NOT to Use

  • Generating new tests (use /codex-test-gen)
  • Code review (use /codex-review-fast)
  • Security audit (use /codex-security)

Commands Codex Test Review provides

Slash commands named in this skill’s SKILL.md, listed in the order they first appear.

  • /codex-test-gen
  • /codex-review-fast
  • /codex-security

Frequently asked about Codex Test Review

  • What else does sd0xdev publish alongside Codex Test Review?

    Codex Test Review is one of 25 skills that DirSkills catalogs from sd0xdev/sd0x-dev-flow, the repository it ships in. Its siblings there include Adr, Architecture Design and Ask. Each one is a separate skill with its own page in this directory, installs the same way Codex Test Review does, and is maintained by sd0xdev in that same repository. The rest of the collection is listed on the sd0xdev/sd0x-dev-flow page.

  • How does Codex Test Review compare to other Quality skills?

    Codex Test Review ranks #1620 by stars among the 1745 Quality skills in this catalog. The most-starred ones next to it are Benchmark, Benchmark Optimization Loop and API Design Patterns. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Codex Test Review against them. Open each page to compare what they document and how they install.

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