CtrlK
CommunityDocumentationLog inGet started
Tessl Logo

nextjs-developer

tessl i github:jeffallan/claude-skills --skill nextjs-developer

Use when building Next.js 14+ applications with App Router, server components, or server actions. Invoke for full-stack features, performance optimization, SEO implementation, production deployment.

Review Score

64%

Validation Score

12/16

Implementation Score

42%

Activation Score

82%

SKILL.md
Review
Evals

Generated

Validation

Total

12/16

Score

Passed
CriteriaScore

metadata_version

'metadata' field is not a dictionary

license_field

'license' field is missing

frontmatter_unknown_keys

Unknown frontmatter key(s) found; consider removing or moving to metadata

body_examples

No examples detected (no code fences and no 'Example' wording)

Implementation

Suggestions 4

Score

42%

Overall Assessment

This skill has strong organizational structure with excellent progressive disclosure through its reference table, but critically lacks actionable code examples. The constraints are useful but abstract - Claude would benefit from seeing actual implementation patterns rather than just being told what to use. The workflow needs validation checkpoints for a production deployment context.

Suggestions

  • Add executable code examples for key patterns: a basic server component with data fetching, a server action with form handling, and proper Metadata API usage
  • Include validation checkpoints in the workflow, such as 'Run `next build` and verify no errors' and 'Check Core Web Vitals with Lighthouse'
  • Replace the abstract 'Role Definition' paragraph with a concrete quick-start example showing a minimal App Router setup
  • Add a troubleshooting section or common pitfalls with specific error messages and fixes
DimensionScoreReasoning

Conciseness

2/3

The skill is reasonably efficient but includes some unnecessary content like the 'Role Definition' paragraph explaining years of experience and the 'Related Skills' section which adds little value. The MUST DO/MUST NOT DO lists are useful but could be tighter.

Actionability

1/3

The skill lacks any executable code examples. It describes what to do ('Use Server Components by default', 'Use native fetch with caching options') but provides no concrete implementation patterns, code snippets, or copy-paste ready examples.

Workflow Clarity

2/3

The 5-step core workflow provides a reasonable sequence but lacks validation checkpoints. There's no guidance on how to verify each step succeeded, no feedback loops for error recovery, and the steps are too high-level to be immediately actionable.

Progressive Disclosure

3/3

Excellent use of reference table pointing to specific topic files with clear 'Load When' guidance. The structure is clean with one-level-deep references, and the main skill serves as a proper overview without being monolithic.

Activation

Suggestions 2

Score

82%

Overall Assessment

This is a solid description that clearly identifies when to use the skill and includes good trigger terms for Next.js development. The main weakness is that the capabilities listed are somewhat high-level categories rather than concrete actions, and some terms like 'full-stack features' and 'performance optimization' could cause overlap with other web development skills.

Suggestions

  • Replace high-level terms like 'full-stack features' with specific actions such as 'configure route handlers, implement middleware, set up API routes'
  • Add more distinctive Next.js-specific triggers like 'RSC', 'use server', 'generateStaticParams', 'next.config.js' to reduce conflict with general React skills
DimensionScoreReasoning

Specificity

2/3

Names the domain (Next.js 14+ with App Router) and mentions some actions like 'performance optimization, SEO implementation, production deployment', but these are high-level categories rather than concrete specific actions like 'configure server components' or 'implement streaming SSR'.

Completeness

3/3

Explicitly answers both what (building Next.js 14+ applications with specific features) and when ('Use when building...', 'Invoke for...'). The 'Use when' and 'Invoke for' clauses provide clear trigger guidance.

Trigger Term Quality

3/3

Good coverage of natural terms users would say: 'Next.js', 'App Router', 'server components', 'server actions', 'full-stack', 'performance optimization', 'SEO', 'production deployment'. These are terms developers naturally use when working with Next.js.

Distinctiveness Conflict Risk

2/3

While 'Next.js 14+ with App Router' is specific, terms like 'full-stack features', 'performance optimization', and 'SEO implementation' could overlap with general React skills or other web framework skills. The Next.js-specific terms help but don't fully eliminate conflict risk.

Repository
github.com/jeffallan/claude-skills
Last updated
Created

Is this your skill?

If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.