rails-model-generator
Creates Rails models using TDD approach - spec first, then migration, then model. Use when creating new models, adding model validations, defining associations, or setting up database tables.
Install with Tessl CLI
npx tessl i github:fernandezbaptiste/rails_ai_agents --skill rails-model-generator93
Does it follow best practices?
Validation for skill structure
Discovery
100%Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.
This is a well-crafted skill description that excels across all dimensions. It clearly specifies the TDD methodology, lists concrete Rails-specific actions, includes natural trigger terms developers would use, and has an explicit 'Use when...' clause. The combination of Rails + TDD + models creates a distinct niche.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Lists multiple specific concrete actions: 'Creates Rails models', 'spec first, then migration, then model', 'adding model validations', 'defining associations', 'setting up database tables'. These are concrete, actionable capabilities. | 3 / 3 |
Completeness | Clearly answers both what ('Creates Rails models using TDD approach - spec first, then migration, then model') and when ('Use when creating new models, adding model validations, defining associations, or setting up database tables') with explicit trigger guidance. | 3 / 3 |
Trigger Term Quality | Includes natural keywords users would say: 'Rails models', 'TDD', 'spec', 'migration', 'model validations', 'associations', 'database tables'. These cover common variations of how developers discuss Rails model creation. | 3 / 3 |
Distinctiveness Conflict Risk | Clear niche combining Rails + models + TDD approach. The specific methodology (spec first) and Rails-specific terminology (migrations, associations) make it unlikely to conflict with generic coding or testing skills. | 3 / 3 |
Total | 12 / 12 Passed |
Implementation
85%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, well-structured skill that provides clear TDD workflow guidance with executable code examples and appropriate validation checkpoints. The progressive disclosure is excellent with external template references. Minor verbosity in the checklist duplication and some obvious explanations prevent a perfect conciseness score.
Suggestions
Remove the workflow checklist or consolidate it with the step headers to eliminate duplication
Remove obvious explanations like 'Expected: Failure because model/table doesn't exist' - Claude understands TDD red-green cycles
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The skill is reasonably efficient but includes some redundancy - the workflow checklist duplicates the step-by-step sections, and some explanations (like 'Expected: Failure because model/table doesn't exist') state the obvious to Claude. | 2 / 3 |
Actionability | Excellent actionability with fully executable Ruby code, specific bash commands, complete file paths, and copy-paste ready examples for specs, factories, migrations, and models. | 3 / 3 |
Workflow Clarity | Clear 10-step sequence with explicit validation checkpoints (run spec at steps 4, 8, 10), expected outcomes at each stage (RED/GREEN), and verification commands after migration. | 3 / 3 |
Progressive Disclosure | Well-structured with clear overview, step-by-step workflow, and appropriate references to external templates (model_spec.erb, factory.erb, validations.md) that are one level deep and clearly signaled. | 3 / 3 |
Total | 11 / 12 Passed |
Validation
90%Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.
Validation — 10 / 11 Passed
Validation for skill structure
| Criteria | Description | Result |
|---|---|---|
allowed_tools_field | 'allowed-tools' contains unusual tool name(s) | Warning |
Total | 10 / 11 Passed | |
- Reviewed
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