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rails-model-generator

tessl i github:ThibautBaissac/rails_ai_agents --skill 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.

91%

Overall

SKILL.md
Review
Evals

Validation

81%
CriteriaDescriptionResult

allowed_tools_field

'allowed-tools' contains unusual tool name(s)

Warning

metadata_version

'metadata' field is not a dictionary

Warning

license_field

'license' field is missing

Warning

Total

13

/

16

Passed

Implementation

85%

This is a strong, well-structured skill that provides a complete TDD workflow for Rails model creation. The actionability is excellent with executable code at every step, and the workflow clarity with explicit RED/GREEN checkpoints is particularly valuable. Minor verbosity in the checklist duplication and some obvious explanations prevent a perfect conciseness score.

DimensionReasoningScore

Conciseness

The skill is mostly efficient but includes some redundancy - the workflow checklist duplicates the overview steps, and some explanations like 'Expected: Failure because model/table doesn't exist' state the obvious. The templates are appropriately referenced rather than fully inlined.

2 / 3

Actionability

Provides fully executable, copy-paste ready code for every step including specs, factories, migrations, and model implementations. Commands are specific with exact file paths and bash commands.

3 / 3

Workflow Clarity

Excellent 10-step workflow with explicit validation checkpoints (Step 4: verify RED, Step 8: still RED, Step 10: GREEN). Clear feedback loop of run spec -> verify failure/success -> proceed. The checklist format makes progress tracking explicit.

3 / 3

Progressive Disclosure

Well-structured with clear overview, inline essentials, and one-level-deep references to templates (model_spec.erb, factory.erb) and reference docs (validations.md). Common patterns section provides quick reference without bloating the main workflow.

3 / 3

Total

11

/

12

Passed

Activation

100%

This is a well-crafted skill description that clearly communicates its purpose and triggers. It uses third person voice, lists specific concrete actions, includes natural developer terminology, and explicitly states both what the skill does and when to use it. The TDD methodology focus adds distinctiveness.

DimensionReasoningScore

Specificity

Lists multiple specific concrete actions: 'Creates Rails models using TDD approach - spec first, then migration, then model' and elaborates with 'adding model validations, defining associations, setting up database tables'.

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').

3 / 3

Trigger Term Quality

Includes natural keywords users would say: 'Rails models', 'model validations', 'associations', 'database tables', 'migration', 'TDD'. These are terms developers naturally use when working with Rails.

3 / 3

Distinctiveness Conflict Risk

Clear niche targeting Rails model creation with TDD methodology. The combination of Rails-specific terminology, TDD approach, and model-focused triggers makes it distinct from general coding or testing skills.

3 / 3

Total

12

/

12

Passed

Reviewed

Table of Contents

ValidationImplementationActivation

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