WooCommerce Code Review
woocommerce/woocommerce
Reviews WooCommerce code changes against the project's standards, flagging backend PHP architecture, naming, documentation, data integrity and testing violations.
AI code quality checks. An agent skill from hashgraph-online/awesome-codex-plugins.
Install Quality
$ npx skills add hashgraph-online/awesome-codex-plugins --skill quality -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install hashgraph-online/awesome-codex-plugins quality --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/ariaxhan/kernel-claude/skills/quality .claude/skills/quality && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "quality" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/ariaxhan/kernel-claude/skills/quality into .claude/skills/quality/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "quality", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/ariaxhan/kernel-claude/skills/qualityType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add hashgraph-online/awesome-codex-plugins --skill quality -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install hashgraph-online/awesome-codex-plugins quality --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .agents/skills && cp -r skills-src/plugins/ariaxhan/kernel-claude/skills/quality .agents/skills/quality && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "quality" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/ariaxhan/kernel-claude/skills/quality into .agents/skills/quality/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "quality", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add hashgraph-online/awesome-codex-plugins --skill quality -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install hashgraph-online/awesome-codex-plugins quality --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/plugins/ariaxhan/kernel-claude/skills/quality .cursor/skills/quality && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "quality" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/ariaxhan/kernel-claude/skills/quality into .cursor/skills/quality/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "quality", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/hashgraph-online/awesome-codex-plugins.git --path plugins/ariaxhan/kernel-claude/skills/quality--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add hashgraph-online/awesome-codex-plugins --skill quality -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install hashgraph-online/awesome-codex-plugins quality --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/plugins/ariaxhan/kernel-claude/skills/quality .gemini/skills/quality && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "quality" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/ariaxhan/kernel-claude/skills/quality into .gemini/skills/quality/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "quality", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install hashgraph-online/awesome-codex-plugins qualityInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add hashgraph-online/awesome-codex-plugins --skill quality -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .github/skills && cp -r skills-src/plugins/ariaxhan/kernel-claude/skills/quality .github/skills/quality && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "quality" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/ariaxhan/kernel-claude/skills/quality into .github/skills/quality/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "quality", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add hashgraph-online/awesome-codex-plugins --skill quality -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install hashgraph-online/awesome-codex-plugins quality --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/plugins/ariaxhan/kernel-claude/skills/quality .opencode/skills/quality && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "quality" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/ariaxhan/kernel-claude/skills/quality into .opencode/skills/quality/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "quality", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
quality- GitHub stars
- 1.2k
- Token cost
- ~997 tokens
- SKILL.md length
- 469 words
- Files
- 2
- Skills in repo
- 736
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
AI code quality checks. An agent skill from hashgraph-online/awesome-codex-plugins.
- Tasks that involve Code quality
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Quality is an agent skill from hashgraph-online/awesome-codex-plugins. AI code quality checks. The Big 5: input validation, edge cases, error handling, duplication, complexity. Triggers: quality, big 5, ai code, review, validate.
Its SKILL.md is about 1000 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files (for example `reference/quality-research.md`).
It sits in Development, covering Code quality. The repository describes itself as: A curated list of awesome OpenAI Codex / ChatGPT plugins, skills, and resources. The 1 Codex Marketplace. See live plugins at: https://hol.org/plugins/best-codex-plugins. The licence is Apache-2.0.
When your agent uses it
- Tasks that involve Code quality
Example prompts
- “/quality”
Requirements
- Pre-approved tools (allowed-tools): Read, Grep, Bash
What it can do on your machine
Read from SKILL.md and the folder at commit 16b4156. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
ReadGrepBash
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are bash).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Quality loads about 997 tokens when it runs. Until then it costs about 42 tokens; SKILL.md has 469 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check: notes
The automated check noted patterns worth knowing about, such as sudo or a known installer.
- NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
allowed-tools: Read, Grep, Bash
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from hashgraph-online/awesome-codex-plugins at commit 16b4156, republished under its Apache-2.0 licence (© hashgraph-online). 469 words, ~997 tokens.
Download SKILL.mdSave it as
.claude/skills/quality/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.- name
- quality
- description
- AI code quality checks. The Big 5: input validation, edge cases, error handling, duplication, complexity. Triggers: quality, big 5, ai code, review, validate.
- allowed-tools
- Read, Grep, Bash
- kernel.kind
- methodology
- kernel.version
- 1
- kernel.side_effects
- none
- kernel.confirmation
- none
<skill id="quality"><purpose>
AI code is 1.7x buggier. These 5 checks catch 80% of issues.
Load this skill for any review, validation, or implementation work.
</purpose><reference>
Verbose research: skills/quality/reference/quality-research.md
</reference><big5>
<check id="1" name="input_validation" detection="grep -r 'req\.body' | grep -v 'parse\|validate\|z\.'">
Every endpoint has Zod/Pydantic schema. Parameterized queries only.
</check><check id="2" name="edge_cases" detection="search for array access without length check">
Handle: null, empty array, zero-length string, timeout, unicode.
</check><check id="3" name="error_handling" detection="grep -r 'catch.*{}'">
No empty catch. Errors logged with context. User messages generic.
Silent swallowing is the worst variant: a catch/onError that returns a masked or
generic body without first logging method/path/cause hides the root failure behind
a 500 and costs a full re-diagnosis per incident. Every handler logs the cause
before it masks. Missing config/dependency is a NAMED condition in the response
(which var, which service), never a generic error.
</check><check id="4" name="duplication" detection="jscpd or manual review">
Same logic in 3+ places = extract to utility.
</check><check id="5" name="complexity" detection="eslint complexity rule">
Functions under 30 lines. No nested ternaries > 2 levels.
</check><check id="6" name="gate_integrity" detection="seed a known violation and confirm the gate goes red">
A gate nobody has seen fail is not a gate. Before trusting any check you ship or run:
- Prove it red. Seed the exact violation it claims to catch, watch it fail, then unseed.
A gate that has only ever printed PASS is measuring nothing.
- The checker re-derives its evidence. A hash, a "PASS" string, a file that merely exists,
or a count supplied by the thing being checked is an assertion, not evidence. Read the
bytes, run the command, fetch the remote.
- Exit 0 with empty or blank output is a failure, not a pass. Never pipe a gate to
`tail`/`head`; the pipe reports the pager's exit code.
- A gate that stays green after you delete the code it guards is blind. Delete-and-rerun
is the cheapest mutation test there is.
- Randomness in a gate makes it a coin flip. Pin the seed or pin the input.
- Absence of a run is red, not pending.
</check>
</big5>Show full SKILL.md (123 more words)Show less
<quick_checks>
# 1. Missing validation
grep -r "req\.body" --include="*.ts" --include="*.js" | grep -v "parse\|validate\|z\." | head -5
# 2. Empty catch blocks
grep -r "catch.*{}" --include="*.ts" --include="*.js" | head -5
# 3. String concat in queries (SQL injection)
grep -rE "SELECT.*\$\{|INSERT.*\$\{" --include="*.ts" --include="*.js" | head -5</quick_checks>
<data_correctness> For any pipeline that extracts or transforms figures (financial, metrics, counts):
- Parse deterministically (a real parser, regex, typed loader). The LLM never generates, transforms, or "fixes" numeric values.
- Units are explicit at parse time (percent vs fraction, counts vs currency); a value never crosses unit categories through arithmetic.
- Tie-out gate: derived aggregates must reproduce the source's own totals before any output is shown downstream. A delta between your output and the source is assumed to be YOUR normalization bug until proven otherwise.
- Silent-empty guard: "no findings" produced from an empty parse is a failure of the parse, not a finding. </data_correctness>
<verdict>
Any Big 5 violation = NOT READY
Fix before commit. No exceptions.
</verdict><on_complete> agentdb write-end '{"skill":"quality","big5_checked":true,"violations":N}' </on_complete>
</skill>© hashgraph-online, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 1 other file in plugins/ariaxhan/kernel-claude/skills/quality of hashgraph-online/awesome-codex-plugins.
- SKILL.md
- reference/quality-research.md
Open the folder on GitHubat commit 16b4156
Compare with similar skills
Quality next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Quality this skillhashgraph-online/awesome-codex-plugins | 1.2k | — | ~997 | Automated safety check: Notes | Apache-2.0 | |
| WooCommerce Code Reviewwoocommerce/woocommerce | 11k | 3 repos | ~1.1k | Automated safety check: Pass | Custom licence | |
| Systematic Code Refactoringluongnv89/claude-howto | 42k | — | ~3k | Automated safety check: Pass | MIT | |
| Install Anti-Slop Oxlint Rulesdmmulroy/anti-slop | 5.2k | — | ~2.2k | Automated safety check: Pass | MIT | |
| Constraint-Driven Developmentaddyosmani/agent-skills | 102k | 2 repos | ~5.2k | Automated safety check: Pass | MIT | |
| Skill Doli Code ReviewDolibarr/dolibarr | 7.7k | 1 repos | ~1.1k | Automated safety check: Pass | MIT |
Similar skills
Systematic Code Refactoring
luongnv89/claude-howto
Guides refactoring in phases based on Martin Fowler's method: research, test coverage check, planning and small tested steps, with your approval at each phase.
Install Anti-Slop Oxlint Rules
dmmulroy/anti-slop
Installs, updates or migrates the vendored anti-slop Oxlint plugin in a repository, keeping local rule changes and the plugin's license and provenance files.
Constraint-Driven Development
addyosmani/agent-skills
Records a project's quality bar in CONSTRAINTS.md and watches diffs for signs an agent quietly weakened it, such as suppressions, skipped tests or lowered thresholds.
Skill Doli Code Review
Dolibarr/dolibarr
Reviews Dolibarr PHP code for compliance with coding standards and security best practices, and fixes identified issues.
Dignified Python Standards
docling-project/docling
Applies opinionated production Python conventions chosen by the project's Python version: modern type syntax, pathlib, explicit checks and interface guidance.
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Related
Categories
Questions about Quality
What does Quality do?
AI code quality checks. An agent skill from hashgraph-online/awesome-codex-plugins. Quality is an agent skill from hashgraph-online/awesome-codex-plugins. AI code quality checks.
When should I use Quality?
Quality fits situations like: tasks that involve Code quality.
How do I install Quality in Claude Code?
Run `npx skills add hashgraph-online/awesome-codex-plugins --skill quality -a claude-code`. Or copy the skill folder (plugins/ariaxhan/kernel-claude/skills/quality in hashgraph-online/awesome-codex-plugins) into .claude/skills/quality in your project. Claude Code loads it when a task matches its description.
How do I install Quality in Codex?
Run `npx skills add hashgraph-online/awesome-codex-plugins --skill quality -a codex`. Or copy the skill folder (plugins/ariaxhan/kernel-claude/skills/quality in hashgraph-online/awesome-codex-plugins) into .agents/skills/quality in your project. Codex loads it when a task matches its description.
Can I use Quality in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add hashgraph-online/awesome-codex-plugins --skill quality -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/quality, .gemini/skills/quality, .github/skills/quality and .opencode/skills/quality in your project.
What does Quality need to run?
SKILL.md names no scripts, command-line tools or credentials: Quality is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Grep, Bash.
Does Quality access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Quality safe to install?
Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.
What licence does Quality use?
Quality is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Quality use?
About 997 tokens (SKILL.md is roughly 4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Quality?
Skills that share tags, products or a category with Quality: WooCommerce Code Review (woocommerce/woocommerce, 11k stars), Systematic Code Refactoring (luongnv89/claude-howto, 42k stars), Install Anti-Slop Oxlint Rules (dmmulroy/anti-slop, 5.2k stars) and Constraint-Driven Development (addyosmani/agent-skills, 102k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Quality?
hashgraph-online (a GitHub organization) maintains it in hashgraph-online/awesome-codex-plugins, which has 1,232 GitHub stars. The repository holds 736 skills in this directory. The repository was last updated on October 6, 2026.
Source: hashgraph-online/awesome-codex-plugins on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.