Agent skill

Project Health Auditor

Comprehensive codebase health analysis. An agent skill from majiayu000/spellbook.

MITAuto-check: notesDevelopment

Install Project Health Auditor

skills CLI

$ npx skills add majiayu000/spellbook --skill project-health-auditor -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install majiayu000/spellbook project-health-auditor --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/majiayu000/spellbook.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/project-health-auditor .claude/skills/project-health-auditor && rm -rf skills-src

Use ~/.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/

Paste into Claude Code

Install the "project-health-auditor" agent skill from https://github.com/majiayu000/spellbook/tree/main/skills/project-health-auditor into .claude/skills/project-health-auditor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "project-health-auditor", 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

$skill-installer install https://github.com/majiayu000/spellbook/tree/main/skills/project-health-auditor

Type 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.

skills CLI

$ npx skills add majiayu000/spellbook --skill project-health-auditor -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install majiayu000/spellbook project-health-auditor --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/majiayu000/spellbook.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/project-health-auditor .agents/skills/project-health-auditor && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "project-health-auditor" agent skill from https://github.com/majiayu000/spellbook/tree/main/skills/project-health-auditor into .agents/skills/project-health-auditor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "project-health-auditor", 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.

skills CLI

$ npx skills add majiayu000/spellbook --skill project-health-auditor -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install majiayu000/spellbook project-health-auditor --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/majiayu000/spellbook.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/project-health-auditor .cursor/skills/project-health-auditor && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "project-health-auditor" agent skill from https://github.com/majiayu000/spellbook/tree/main/skills/project-health-auditor into .cursor/skills/project-health-auditor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "project-health-auditor", 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

$ gemini skills install https://github.com/majiayu000/spellbook.git --path skills/project-health-auditor

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add majiayu000/spellbook --skill project-health-auditor -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install majiayu000/spellbook project-health-auditor --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/majiayu000/spellbook.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/project-health-auditor .gemini/skills/project-health-auditor && rm -rf skills-src

Use ~/.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/

Paste into Gemini CLI

Install the "project-health-auditor" agent skill from https://github.com/majiayu000/spellbook/tree/main/skills/project-health-auditor into .gemini/skills/project-health-auditor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "project-health-auditor", 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.

GitHub CLI

$ gh skill install majiayu000/spellbook project-health-auditor

Installs 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).

skills CLI

$ npx skills add majiayu000/spellbook --skill project-health-auditor -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/majiayu000/spellbook.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/project-health-auditor .github/skills/project-health-auditor && rm -rf skills-src

Use ~/.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/

Paste into GitHub Copilot

Install the "project-health-auditor" agent skill from https://github.com/majiayu000/spellbook/tree/main/skills/project-health-auditor into .github/skills/project-health-auditor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "project-health-auditor", 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.

skills CLI

$ npx skills add majiayu000/spellbook --skill project-health-auditor -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install majiayu000/spellbook project-health-auditor --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/majiayu000/spellbook.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/project-health-auditor .opencode/skills/project-health-auditor && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "project-health-auditor" agent skill from https://github.com/majiayu000/spellbook/tree/main/skills/project-health-auditor into .opencode/skills/project-health-auditor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "project-health-auditor", 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: project-health-auditor
GitHub stars: 287
Token cost: ~1.7k tokens
SKILL.md length: 277 words
Files: 1
Skills in repo: 97
Repo updated: Oct 8, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Comprehensive codebase health analysis. An agent skill from majiayu000/spellbook.

Works in 6 steps: Code Quality → Dependencies → Security → …
Reviewing code quality
SKILL.md covers Purpose, Audit Categories, Health Report Template and Quick Commands
Calls npm, npx and pytest

What it does

Project Health Auditor is an agent skill from majiayu000/spellbook. Comprehensive codebase health analysis. Use when reviewing code quality, identifying technical debt, checking dependencies, or assessing project structure.

Its SKILL.md is about 1.7k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Development, covering Code quality and Technical debt. The repository describes itself as: Cross-runtime skills for Claude Code, Codex, and multi-agent workflows. The licence is MIT.

When your agent uses it

Reviewing code quality
Identifying technical debt
Checking dependencies
Assessing project structure

Example prompts

“/project-health-auditor”

Requirements

Node.js
Pre-approved tools (allowed-tools): Read, Grep, Glob, Bash

Workflow steps

6 steps, taken from the step headings in SKILL.md.

Code Quality
Dependencies
Security
Testing
Documentation
Architecture

What it can do on your machine

Read from SKILL.md and the folder at commit ed52af7. 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:
- Read
- Grep
- Glob
- Bash
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
- npm
- npx
- pytest
From the folder's file list and the shell code blocks in SKILL.md.
Network
Links to these hosts (documentation or services it may open):
- github.com
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

Project Health Auditor loads about 1.7k tokens when it runs. Until then it costs about 45 tokens; SKILL.md has 277 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~45
When it runs · the whole SKILL.md, loaded when a task matches: ~1.7k

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.

NoteMentions a .env fileSKILL.md:106
```
# Check .env is gitignored
```
NoteMentions a .env fileSKILL.md:107
```
cat .gitignore | grep ".env"
```

NoteMentions a .env fileSKILL.md:115

| .env committed | Secret leak | Add to .gitignore |

NoteMentions a .env fileSKILL.md:127
```
- [ ] .env files gitignored
```
NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
```
allowed-tools: Read, Grep, Glob, 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 majiayu000/spellbook at commit ed52af7, republished under its MIT licence (© majiayu000). 277 words, ~1,704 tokens.

Download SKILL.mdSave it as .claude/skills/project-health-auditor/SKILL.md (or your agent's skills folder).

name: project-health-auditor
description: Comprehensive codebase health analysis. Use when reviewing code quality, identifying technical debt, checking dependencies, or assessing project structure.
allowed-tools: Read, Grep, Glob, Bash

Project Health Auditor

Inspired by claude-code-plugins-plus

Purpose

Analyze codebase health across multiple dimensions: code quality, dependencies, security, testing, documentation, and architecture.

Audit Categories

1. Code Quality

Complexity Analysis

bash

# Count lines per file (identify large files)
find src -name "*.ts" -o -name "*.js" | xargs wc -l | sort -n

# Find long functions (over 50 lines)
# Check for deeply nested code
# Identify duplicate code patterns

Code Smells

Smell	Indicator	Action
Long files	>500 lines	Split into modules
Long functions	>50 lines	Extract methods
Deep nesting	>4 levels	Flatten logic
Many parameters	>5 params	Use objects
Duplicate code	Similar blocks	Extract shared
Dead code	Unused exports	Remove
Magic numbers	Hardcoded values	Use constants

Checklist

markdown

## Code Quality Audit
- [ ] No files over 500 lines
- [ ] No functions over 50 lines
- [ ] No nesting deeper than 4 levels
- [ ] No functions with >5 parameters
- [ ] No obvious code duplication
- [ ] No dead/unused code
- [ ] Consistent naming conventions
- [ ] Proper error handling

2. Dependencies

Dependency Health

bash

# Check outdated packages (npm)
npm outdated

# Check for vulnerabilities
npm audit

# Analyze bundle size
npx webpack-bundle-analyzer

# Check unused dependencies
npx depcheck

Evaluation Criteria

Metric	Healthy	Warning	Critical
Outdated (major)	0	1-3	>3
Outdated (minor)	<5	5-10	>10
Vulnerabilities	0	Low/Med	High/Crit
Unused deps	0	1-3	>3
Bundle size	<500KB	500KB-1MB	>1MB

Checklist

markdown

## Dependencies Audit
- [ ] No critical vulnerabilities
- [ ] No high vulnerabilities
- [ ] <3 major version updates pending
- [ ] No unused dependencies
- [ ] Lock file in sync
- [ ] Bundle size reasonable

3. Security

Security Checks

bash

# Check for secrets in code
grep -r "password\|secret\|api_key\|token" --include="*.ts" --include="*.js"

# Check for hardcoded credentials
grep -r "Bearer \|Basic " --include="*.ts"

# Check .env is gitignored
cat .gitignore | grep ".env"

Security Audit Points

Check	Concern	Solution
Secrets in code	Credential exposure	Use env vars
.env committed	Secret leak	Add to .gitignore
SQL strings	SQL injection	Use parameterized queries
User input in HTML	XSS	Sanitize/escape
Outdated deps	Known vulns	Update regularly
No rate limiting	DoS	Add rate limits
No input validation	Injection	Validate all inputs

Checklist

markdown

## Security Audit
- [ ] No hardcoded secrets
- [ ] .env files gitignored
- [ ] Dependencies scanned for vulns
- [ ] Input validation in place
- [ ] Output encoding for XSS
- [ ] SQL injection prevention
- [ ] Authentication implemented
- [ ] Authorization checks exist

4. Testing

Test Coverage Analysis

bash

# Run tests with coverage (npm/jest)
npm test -- --coverage

# Run tests with coverage (pytest)
pytest --cov=src --cov-report=html

Coverage Standards

Metric	Good	Acceptable	Poor
Line coverage	>80%	60-80%	<60%
Branch coverage	>70%	50-70%	<50%
Function coverage	>80%	60-80%	<60%

Checklist

markdown

## Testing Audit
- [ ] Unit tests exist
- [ ] Integration tests exist
- [ ] Line coverage >60%
- [ ] Critical paths tested
- [ ] Edge cases covered
- [ ] Tests run in CI
- [ ] Test execution <5 min
- [ ] No flaky tests

5. Documentation

Documentation Inventory

bash

# Check for README
ls README.md

# Check for API docs
ls docs/ || ls documentation/

# Check for inline docs (JSDoc, docstrings)
grep -r "@param\|@returns\|Args:\|Returns:" src/

Documentation Standards

Doc Type	Purpose	Required
README.md	Project overview	Always
CONTRIBUTING.md	Contribution guide	Open source
API docs	Endpoint reference	APIs
Code comments	Complex logic	As needed
Architecture docs	System design	Large projects
CHANGELOG.md	Version history	Libraries

Checklist

markdown

## Documentation Audit
- [ ] README exists and current
- [ ] Installation instructions
- [ ] Usage examples
- [ ] API documentation
- [ ] Contributing guide
- [ ] License specified
- [ ] Complex code documented

6. Architecture

Architecture Review

Aspect	Check	Concern
Coupling	Import chains	Tight coupling
Cohesion	Module size	God modules
Layers	Directory structure	Layer violations
Dependencies	Package.json	Circular deps
Config	Hardcoded values	Environment issues

Common Issues

markdown

## Architecture Smells
- Circular dependencies
- God classes/modules
- Feature envy (cross-module reaching)
- Shotgun surgery (changes touch many files)
- Inappropriate intimacy (modules know too much)

Checklist

markdown

## Architecture Audit
- [ ] Clear module boundaries
- [ ] No circular dependencies
- [ ] Proper layer separation
- [ ] Configuration externalized
- [ ] Environment-specific settings
- [ ] Scalability considered
- [ ] Single responsibility

Health Report Template

markdown

# Project Health Report

**Project:** [Name]
**Date:** [Date]
**Auditor:** Claude

## Summary

| Category | Score | Status |
|----------|-------|--------|
| Code Quality | X/10 | 🟢/🟡/🔴 |
| Dependencies | X/10 | 🟢/🟡/🔴 |
| Security | X/10 | 🟢/🟡/🔴 |
| Testing | X/10 | 🟢/🟡/🔴 |
| Documentation | X/10 | 🟢/🟡/🔴 |
| Architecture | X/10 | 🟢/🟡/🔴 |
| **Overall** | **X/10** | **Status** |

## Critical Issues (Fix Immediately)
1. [Issue description]
2. [Issue description]

## High Priority (Fix Soon)
1. [Issue description]
2. [Issue description]

## Recommendations
1. [Recommendation]
2. [Recommendation]

## Technical Debt
- [Debt item with estimated effort]
- [Debt item with estimated effort]

Quick Commands

bash

# Full audit script
echo "=== Code Stats ===" && cloc src/
echo "=== Dependencies ===" && npm outdated
echo "=== Security ===" && npm audit
echo "=== Test Coverage ===" && npm test -- --coverage
echo "=== TODO/FIXME ===" && grep -r "TODO\|FIXME" src/

Files

Just SKILL.md in skills/project-health-auditor of majiayu000/spellbook.

Open the folder on GitHubat commit ed52af7

Compare with similar skills

Project Health Auditor 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.

Project Health Auditor compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Project Health Auditor this skillmajiayu000/spellbook	287	—	~1.7k	Automated safety check: Notes	MIT	2 days ago
Systematic Code Refactoringluongnv89/claude-howto	42k	—	~3k	Automated safety check: Pass	MIT	today
Code Refactoring Workflowluongnv89/claude-howto	42k	—	~3.1k	Automated safety check: Pass	MIT	today
Ponytail Debt LedgerDietrichGebert/ponytail	160k	—	~453	Automated safety check: Pass	MIT	yesterday
FIXME Resolvertailcallhq/forgecode	7.6k	—	~1.1k	Automated safety check: Pass	Apache-2.0	today
DesloppifyGit-on-my-level/codex-autorunner	875	—	~3.4k	Automated safety check: Pass	MIT	2 days ago

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Questions about Project Health Auditor

What does Project Health Auditor do?

Comprehensive codebase health analysis. An agent skill from majiayu000/spellbook. Project Health Auditor is an agent skill from majiayu000/spellbook. Comprehensive codebase health analysis.

When should I use Project Health Auditor?

Project Health Auditor fits situations like: reviewing code quality; identifying technical debt; checking dependencies; assessing project structure.

How do I install Project Health Auditor in Claude Code?

Run `npx skills add majiayu000/spellbook --skill project-health-auditor -a claude-code`. Or copy the skill folder (skills/project-health-auditor in majiayu000/spellbook) into .claude/skills/project-health-auditor in your project. Claude Code loads it when a task matches its description.

How do I install Project Health Auditor in Codex?

Run `npx skills add majiayu000/spellbook --skill project-health-auditor -a codex`. Or copy the skill folder (skills/project-health-auditor in majiayu000/spellbook) into .agents/skills/project-health-auditor in your project. Codex loads it when a task matches its description.

Can I use Project Health Auditor 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 majiayu000/spellbook --skill project-health-auditor -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/project-health-auditor, .gemini/skills/project-health-auditor, .github/skills/project-health-auditor and .opencode/skills/project-health-auditor in your project.

What does Project Health Auditor need to run?

Going by SKILL.md and its folder, Project Health Auditor needs the command-line tools its instructions call (npm, npx and pytest). Our summary lists: Node.js. Its frontmatter pre-approves these tools: Read, Grep, Glob, Bash.

Does Project Health Auditor access the network?

SKILL.md names 1 domain. As links in the text: github.com. This is read from the text; nothing was executed.

Is Project Health Auditor safe to install?

Our automated static check of SKILL.md found notes only (mentions a .env file; 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 Project Health Auditor use?

Project Health Auditor is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Project Health Auditor use?

About 1.7k tokens (SKILL.md is roughly 6.8k 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 Project Health Auditor?

Skills that share tags, products or a category with Project Health Auditor: Systematic Code Refactoring (luongnv89/claude-howto, 42k stars), Code Refactoring Workflow (luongnv89/claude-howto, 42k stars), Ponytail Debt Ledger (DietrichGebert/ponytail, 160k stars) and FIXME Resolver (tailcallhq/forgecode, 7.6k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Project Health Auditor?

majiayu000 (a GitHub user) maintains it in majiayu000/spellbook, which has 287 GitHub stars. The repository holds 97 skills in this directory. The repository was last updated on October 8, 2026.

Source: majiayu000/spellbook on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Project Health Auditor

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Project Health Auditor

Purpose

Audit Categories

1. Code Quality

Complexity Analysis

Code Smells

Checklist

2. Dependencies

Dependency Health

Evaluation Criteria

Checklist

3. Security

Security Checks

Security Audit Points

Checklist

4. Testing

Test Coverage Analysis

Coverage Standards

Checklist

5. Documentation

Documentation Inventory

Documentation Standards

Checklist

6. Architecture

Architecture Review

Common Issues

Checklist

Health Report Template

Quick Commands

Files

Compare with similar skills

Similar skills

More from majiayu000/spellbook

Related

Questions about Project Health Auditor