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UI Regression

UI Regression is an agent skill (a SKILL.md file) from fcakyon/claude-codex-settings. It should be used when the user asks to "verify UI changes", "test every screen and action", "run regression QA", "check a deployed… It works with Claude Code, Codex, Cursor, Gemini CLI and GitHub Copilot and has 1,189 GitHub stars across a repository of 2 listed skills.

github.com/fcakyon/claude-codex-settings/plugins/agent-browser/skills/ui-regression (opens in a new tab)

Data as of from the GitHub API; description from the skill's SKILL.md. Report an error

Add this skill

Claude

This repository is a Claude Code plugin marketplace. In Claude Code:

/plugin marketplace add fcakyon/claude-codex-settings
/plugin install agent-browser@claude-settings

In the Claude apps, zip the ui-regression folder and upload it under Customize > Skills > + > Upload a skill (code execution must be on).

ChatGPT / Codex

Codex reads skills from .agents/skills/ in a repo or ~/.agents/skills/ for every project:

git clone --depth 1 https://github.com/fcakyon/claude-codex-settings.git
cp -r claude-codex-settings/plugins/agent-browser/skills/ui-regression .agents/skills/ui-regression   # repo; ~/.agents/skills for all projects

Standalone skills also load in the ChatGPT desktop app.

Cursor

Cursor loads skills from .cursor/skills/ (or ~/.cursor/skills/) and also reads .claude/skills/:

git clone --depth 1 https://github.com/fcakyon/claude-codex-settings.git
cp -r claude-codex-settings/plugins/agent-browser/skills/ui-regression .cursor/skills/ui-regression   # project; ~/.cursor/skills for all projects

Source (checked Oct 7, 2026): code.claude.com/docs/en/skills (opens in a new tab), code.claude.com/docs/en/plugin-marketplaces (opens in a new tab), support.claude.com/en/articles/12512180-using-skills-in-claude (opens in a new tab), learn.chatgpt.com/docs/build-skills (opens in a new tab), cursor.com/docs/context/skills (opens in a new tab)

What this skill does

This skill should be used when the user asks to "verify UI changes", "test every screen and action", "run regression QA", "check a deployed UI", or "validate an extension release". Test known web and browser-extension workflows on localhost, staging, or production with action coverage, recovery, localization, accessibility, and real integration evidence. Use dogfood for open-ended bug discovery. Verify that the requested UI works from entry to outcome.

When it triggers

  • used when the user asks to "verify UI changes", "test every screen and action", "run regression QA", "check a deployed UI", or "validate an extension release".
  • Use dogfood for open-ended bug discovery.
  • "verify UI changes"
  • "test every screen and action"
  • "run regression QA"
  • "check a deployed UI"
  • "validate an extension release"

More skills in fcakyon/claude-codex-settings

2 skills are listed from this repository.

FAQ

UI Regression FAQ

Still curious? Email info@appsgit.com.

How do I install the UI Regression skill?

In Claude Code, run /plugin marketplace add fcakyon/claude-codex-settings and then /plugin install agent-browser@claude-settings. For Codex or Cursor, copy the ui-regression folder into .agents/skills/ or .cursor/skills/.

Is the UI Regression skill free?

Yes. The repository is open source under the Apache-2.0 license.

Is UI Regression maintained?

The repository's most recent commit was on Oct 25, 2026. Its latest release is v2.9.0. appsgit only lists skills from repositories with a commit in the last six months.