sinatra-project-starter
Scaffold a production-ready Sinatra 4.x API with Ruby 3.3+, modular application style, Rack middleware, Sequel for database access, Puma web server, and structured project layout.
77
72%
Does it follow best practices?
Impact
Pending
No eval scenarios have been run
Advisory
Suggest reviewing before use
Optimize this skill with Tessl
npx tessl skill review --optimize ./backend-ruby/sinatra-project-starter/SKILL.mdQuality
Discovery
67%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 excels at specificity and distinctiveness by naming exact technologies and versions, making it clearly identifiable for Sinatra API scaffolding tasks. However, it lacks an explicit 'Use when...' clause and could benefit from more natural trigger terms that users might say when requesting this type of project setup.
Suggestions
Add a 'Use when...' clause with trigger phrases like 'Use when creating a new Sinatra project, setting up a Ruby API, or scaffolding a lightweight web service.'
Include natural language variations users might say: 'Ruby web app', 'REST API', 'microservice', 'lightweight backend', 'new Sinatra app'.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Lists multiple specific concrete actions and technologies: 'Scaffold a production-ready Sinatra 4.x API' with specific components including 'Ruby 3.3+, modular application style, Rack middleware, Sequel for database access, Puma web server, and structured project layout.' | 3 / 3 |
Completeness | Clearly answers 'what' (scaffold a Sinatra API with specific stack), but lacks an explicit 'Use when...' clause or trigger guidance. The 'when' is only implied by the action verb 'Scaffold'. | 2 / 3 |
Trigger Term Quality | Includes relevant technical terms like 'Sinatra', 'Ruby', 'API', 'Puma', 'Sequel', 'Rack middleware' that developers would use, but missing common variations like 'web app', 'REST API', 'backend', or 'microservice' that users might naturally say. | 2 / 3 |
Distinctiveness Conflict Risk | Highly distinctive with specific technology stack (Sinatra 4.x, Ruby 3.3+, Sequel, Puma). Unlikely to conflict with Rails, Flask, or other web framework skills due to explicit Sinatra focus. | 3 / 3 |
Total | 10 / 12 Passed |
Implementation
77%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This is a strong, highly actionable skill for scaffolding Sinatra APIs with complete, executable code examples covering all major components. The workflow is clear and the structure is logical. However, the skill is verbose for a SKILL.md file and would benefit from splitting detailed patterns into separate reference files, keeping the main skill as a concise overview with links.
Suggestions
Extract the Essential Patterns section (middleware, routes, models, services, serializers) into a separate PATTERNS.md file and reference it from the main skill
Trim explanatory comments in code blocks (e.g., '# PostgreSQL adapter', '# Service objects') that Claude can infer from context
Move Integration Notes to a separate INTEGRATIONS.md file, keeping only the most critical notes inline
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The skill is comprehensive but includes some unnecessary verbosity. Comments like '# PostgreSQL adapter' and explanations of why Sequel is preferred over ActiveRecord could be trimmed. The Integration Notes section contains some redundant context Claude would already know. | 2 / 3 |
Actionability | Excellent actionability with fully executable, copy-paste ready code throughout. Every component (routes, models, middleware, services, serializers, migrations) has complete, working examples. Commands are specific and immediately usable. | 3 / 3 |
Workflow Clarity | Clear sequential workflow in 'First Steps After Scaffold' section with numbered steps. The scaffold command section provides explicit ordering. Common Commands section provides clear reference for ongoing operations. Validation is implicit through the health check step. | 3 / 3 |
Progressive Disclosure | Content is well-organized with clear sections, but the skill is monolithic at ~400 lines. The Essential Patterns section could be split into separate reference files. No external file references are provided for advanced topics like testing setup or Docker configuration. | 2 / 3 |
Total | 10 / 12 Passed |
Validation
81%Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.
Validation — 9 / 11 Passed
Validation for skill structure
| Criteria | Description | Result |
|---|---|---|
skill_md_line_count | SKILL.md is long (515 lines); consider splitting into references/ and linking | Warning |
frontmatter_unknown_keys | Unknown frontmatter key(s) found; consider removing or moving to metadata | Warning |
Total | 9 / 11 Passed | |
- Repository
- achreftlili/deep-dev-skills
- Commit
181fcbc
- Reviewed
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