dynamic-nested-attributes
Implement Rails nested attributes with dynamic add/remove functionality using Turbo Streams and Simple Form. Use when building forms where users need to manage multiple child records (has_many associations), add/remove nested items without page refresh, or create bulk records inline.
68
82%
Does it follow best practices?
Impact
—
No eval scenarios have been run
Passed
No known issues
Quality
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 an excellent skill description that clearly defines a specific Rails development pattern, names the exact technologies involved, and provides explicit trigger conditions via a 'Use when' clause. It covers natural developer vocabulary comprehensively and occupies a distinct niche that would be easy to differentiate from other skills.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Lists multiple specific concrete actions: 'implement Rails nested attributes', 'dynamic add/remove functionality', 'Turbo Streams and Simple Form', 'manage multiple child records', 'add/remove nested items without page refresh', 'create bulk records inline'. | 3 / 3 |
Completeness | Clearly answers both 'what' (implement Rails nested attributes with dynamic add/remove using Turbo Streams and Simple Form) and 'when' (explicit 'Use when' clause covering managing child records, add/remove nested items without page refresh, creating bulk records inline). | 3 / 3 |
Trigger Term Quality | Includes strong natural keywords users would say: 'nested attributes', 'has_many associations', 'Turbo Streams', 'Simple Form', 'add/remove nested items', 'bulk records inline', 'without page refresh'. These cover the natural vocabulary of Rails developers working on this problem. | 3 / 3 |
Distinctiveness Conflict Risk | Highly specific niche combining Rails nested attributes + Turbo Streams + Simple Form + dynamic add/remove. This is unlikely to conflict with other skills due to the very specific technology stack and use case combination. | 3 / 3 |
Total | 12 / 12 Passed |
Implementation
64%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This is a solid, actionable skill that provides concrete, executable examples across all components needed to implement dynamic nested attributes with Turbo Streams. Its main weaknesses are the lack of validation/debugging checkpoints in the workflow and some verbosity in introductory sections that repeat information Claude already has. The content would benefit from explicit error-handling guidance and better progressive disclosure through bundle files.
Suggestions
Add validation checkpoints after key steps, e.g., 'Verify the Turbo Stream response renders correctly by checking the browser console for Turbo errors' or 'Test that _destroy parameter is properly permitted before proceeding.'
Remove or significantly trim the 'When to Use' and 'Overview' sections — they restate the skill description and add no actionable value.
Extract the Stimulus controller code and strong parameters example into separate bundle files (e.g., `destroy_nested_attributes_controller.js`, `STRONG_PARAMS.md`) and reference them from the main skill.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The skill includes some unnecessary sections like 'When to Use' (which restates the description) and 'Related Patterns' (vague references without actionable links). The 'Overview' section also repeats the description. However, the core implementation sections are reasonably efficient with concrete examples. | 2 / 3 |
Actionability | The skill provides fully executable code examples across all six key components — model setup, Slim templates, Ruby controller actions, Turbo Stream responses, Stimulus JavaScript controllers, routes, and strong parameters. Each piece is copy-paste ready and specific enough to implement directly. | 3 / 3 |
Workflow Clarity | The six numbered key components provide a clear sequence, and the implementation checklist is helpful. However, there are no explicit validation checkpoints — no guidance on verifying that Turbo Stream responses render correctly, that nested attributes are properly permitted, or how to debug common failures like incorrect index tracking. | 2 / 3 |
Progressive Disclosure | The content is well-structured with clear headings and sections, but it's a fairly long monolithic document with no references to supporting files. The Stimulus controller code, strong parameters example, and routes example could be split into separate reference files. For a skill of this complexity, some progressive disclosure into bundle files would improve navigability. | 2 / 3 |
Total | 9 / 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.
- Repository
- RoleModel/rolemodel-skills
- Commit
4d83977
- Reviewed
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