jbvc/senior-fullstack
Comprehensive fullstack development skill for building complete web applications with React, Next.js, Node.js, GraphQL, and PostgreSQL. Includes project scaffolding, code quality analysis, architecture patterns, and complete tech stack guidance. Use when building new projects, analyzing code quality, implementing design patterns, or setting up development workflows.
45
45%
Does it follow best practices?
Impact
Pending
No eval scenarios have been run
Passed
No known issues
Quality
Discovery
59%Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.
The description covers a very broad scope of fullstack development, which hurts its distinctiveness significantly — it would likely conflict with more focused skills in any reasonably sized skill library. It does well on completeness by including an explicit 'Use when...' clause, and it names specific technologies, but the actions described remain at a high categorical level rather than being concretely specific. The breadth of the skill makes it function more like a catch-all than a targeted, distinguishable skill.
Suggestions
Narrow the scope or clearly delineate boundaries — e.g., focus on 'project scaffolding and initial setup for React/Next.js/Node.js stacks' rather than trying to cover all of fullstack development, code quality, architecture, and workflows in one skill.
Add more natural trigger term variations users would actually say, such as 'web app', 'full-stack', 'API setup', 'database schema', 'frontend', 'backend', 'boilerplate', '.tsx', '.ts' to improve keyword coverage.
Make the 'Use when...' clause more specific to reduce overlap — e.g., 'Use when starting a new fullstack project from scratch or when the user asks about combining React with Node.js and PostgreSQL' rather than the very broad current triggers.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Names the domain (fullstack development) and lists some actions like 'project scaffolding, code quality analysis, architecture patterns, tech stack guidance,' but these are somewhat high-level categories rather than multiple concrete, specific actions like 'generate API endpoints, configure database schemas, set up authentication.' | 2 / 3 |
Completeness | Clearly answers both 'what' (fullstack development with specific technologies, project scaffolding, code quality analysis, architecture patterns, tech stack guidance) and 'when' with an explicit 'Use when...' clause covering building new projects, analyzing code quality, implementing design patterns, or setting up development workflows. | 3 / 3 |
Trigger Term Quality | Includes relevant technology keywords (React, Next.js, Node.js, GraphQL, PostgreSQL) that users would naturally mention, but the action-oriented trigger terms are somewhat generic ('building new projects', 'analyzing code quality'). Missing common variations like 'web app', 'full-stack', 'API', 'database', 'frontend', 'backend', 'scaffold', 'boilerplate'. | 2 / 3 |
Distinctiveness Conflict Risk | This is extremely broad — 'comprehensive fullstack development' covering React, Next.js, Node.js, GraphQL, PostgreSQL, code quality, architecture patterns, and development workflows would likely conflict with many other skills (e.g., a React skill, a Node.js skill, a database skill, a code review skill, a project setup skill). The scope is too wide to be clearly distinguishable. | 1 / 3 |
Total | 8 / 12 Passed |
Implementation
7%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This skill is a hollow template with almost no substantive content. It lists tools, technologies, and generic best practices without providing any concrete, actionable guidance for building fullstack applications. The entire body reads like a marketing brochure or README skeleton rather than an instructional skill—every section describes capabilities in vague terms without demonstrating or teaching anything specific.
Suggestions
Replace generic feature bullet points ('Expert-level automation', 'Production-grade output') with actual documentation of what each script does, including concrete input/output examples and available CLI options.
Add at least one complete, executable code example for a core workflow (e.g., scaffolding a Next.js + PostgreSQL project) showing exact commands and expected results.
Replace the generic best practices section ('Write clear code', 'Keep it simple') with project-specific patterns, conventions, or anti-patterns that Claude wouldn't already know—or remove it entirely.
Add validation checkpoints to the development workflow (e.g., 'verify the scaffolded project compiles before proceeding to configuration') and include error recovery steps for common failure modes.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | Extremely verbose with almost no substantive content. Lists generic platitudes ('Follow established patterns', 'Write clear code', 'Keep it simple') that Claude already knows. Feature lists like 'Expert-level automation', 'Production-grade output' are marketing fluff, not useful instructions. The tech stack listing is a laundry list with no actionable guidance. | 1 / 3 |
Actionability | Despite referencing scripts, no concrete examples of inputs/outputs are shown. Commands like `python scripts/fullstack_scaffolder.py <project-path> [options]` give no indication of what options exist or what the scripts actually do. No executable code examples for any of the listed technologies. Best practices are entirely generic ('Validate all inputs', 'Use parameterized queries') with no specific implementation guidance. | 1 / 3 |
Workflow Clarity | The 'Development Workflow' section lists three vague steps (setup, run quality checks, implement best practices) with no validation checkpoints, no error recovery, and no clear sequencing for multi-step processes. Step 3 just says 'Follow the patterns' and points to reference files. No feedback loops for any operations. | 1 / 3 |
Progressive Disclosure | The skill does reference external files (references/tech_stack_guide.md, references/architecture_patterns.md, references/development_workflows.md) which is appropriate structure. However, the SKILL.md itself contains almost no useful overview content—it's mostly empty shells pointing elsewhere. The references are listed redundantly in multiple sections (Reference Documentation, Implement Best Practices, Resources). | 2 / 3 |
Total | 5 / 12 Passed |
Validation
100%Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.
Validation — 11 / 11 Passed
Validation for skill structure
No warnings or errors.
Reviewed
Table of Contents