vannifr/nfr-gap-audit
Use when running a systematic, self-directed skill-and-NFR audit on a website/web-app project — discovering skills from Tessl and VoltAgent, identifying non-functional-requirement gaps (performance, accessibility, security, SEO, testing, privacy, i18n, ...), and planning/implementing improvements in small, verified, committed phases. Trigger on "skill audit", "NFR audit", "audit this project for skills/gaps", "what skills am I missing", or before starting a multi-phase quality-improvement effort on a site.
75
94%
Does it follow best practices?
Run evals on this skill
Adds up to 20 points to the overall score
View guide
Low
Low-risk findings worth noting
nfr-domains.mdreferences/
NFR Domains — Full List
Automatically identify which of these NFRs are relevant for the project.
Performance
- Lighthouse scores (perf, a11y, best-practices, SEO)
- CSS/JS bundle size
- Image optimization status
- Font loading strategy
- Core Web Vitals (LCP, INP, CLS)
Accessibility
- WCAG compliance level (A / AA / AAA)
- Axe test coverage (how many pages?)
- Screen reader compatibility
- Keyboard navigation
- Color contrast compliance
Security
- Security headers (CSP, HSTS, X-Frame-Options, etc.)
- SRI on CDN resources
- Input validation
- XSS prevention
- Secret management
- Dependency vulnerabilities
SEO
- Meta tags completeness
- Structured data (JSON-LD) coverage
- Heading hierarchy
- Internal linking
- Sitemap quality
- hreflang (multi-language?)
Testing
- Unit test coverage %
- E2E test coverage
- Visual regression testing
- Accessibility test coverage
- Performance budget testing
Reliability
- Error handling
- Graceful degradation
- Offline support (PWA?)
- Backup/recovery strategy
Maintainability
- Code organization
- Documentation quality
- Design system consistency
- CSS architecture
- Component reusability
Scalability
- Build time
- Asset optimization at scale
- CDN usage
- Caching strategy
Privacy/Compliance
- GDPR compliance
- Cookie consent
- Data retention policy
- Privacy policy completeness
- Analytics privacy
Internationalization
- Multi-language support
- RTL support
- Locale-specific content
- Translation workflow
Monitoring
- Analytics tool
- Error tracking (Sentry, etc.)
- Uptime monitoring
- Performance monitoring
- Conversion tracking
Content Quality
- Copy quality
- Tone of voice consistency
- Content freshness
- Content governance
- Editorial workflow
Grounding in ISO/IEC 25010
Most of these domains map onto ISO/IEC 25010 software quality characteristics — citing the standard gives each domain a shared, external reference point instead of reading as an ad-hoc list:
| Domain | ISO/IEC 25010 characteristic |
|---|---|
| Performance | Performance Efficiency (time behaviour, resource utilization) |
| Scalability | Performance Efficiency (capacity) |
| Accessibility | Usability (accessibility sub-characteristic) |
| Security | Security |
| Privacy/Compliance | Security (confidentiality) — ISO 25010:2011 has no dedicated privacy characteristic; the 2023 revision's "Safety" characteristic is the closer fit if that revision applies |
| Testing | Maintainability (testability sub-characteristic) |
| Reliability | Reliability |
| Maintainability | Maintainability |
| Internationalization | Portability (adaptability) |
| Monitoring | Reliability (availability, fault tolerance) — monitoring is an operational practice that supports this characteristic, not a characteristic itself |
| SEO | Not in ISO 25010 — a web-specific discoverability concern, not a general software quality characteristic |
| Content Quality | Not in ISO 25010 — a content/editorial concern, not a software product quality characteristic |