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.
86
82%
Does it follow best practices?
Impact
Pending
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 with concrete technologies (Turbo Streams, Simple Form) and actions (add/remove nested items, manage child records). It includes an explicit 'Use when' clause with natural trigger terms that Rails developers would use, and its specificity makes it highly distinguishable 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 functionality using Turbo Streams and Simple Form') and when ('Use when building forms where users need to manage multiple child records, add/remove nested items without page refresh, or create bulk records inline') with an explicit 'Use when' clause. | 3 / 3 |
Trigger Term Quality | Includes strong natural keywords users would say: 'nested attributes', 'Turbo Streams', 'Simple Form', 'has_many associations', 'nested items', 'add/remove', 'bulk records inline', 'without page refresh'. These cover the natural vocabulary of Rails developers working on this pattern. | 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 general Rails skills, general form skills, or other framework skills due to the precise technology stack and use case. | 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 with concrete code examples covering the full Rails nested attributes + Turbo Streams pattern. Its main weaknesses are the lack of validation/debugging checkpoints in the workflow and some verbosity that could be trimmed. The progressive disclosure could be improved by extracting detailed examples into referenced files and making the 'Related Patterns' section link to actual resources.
Suggestions
Add explicit validation checkpoints, e.g., 'Verify the Turbo Stream response renders correctly in browser dev tools' or 'Check Rails logs to confirm nested attributes are permitted and saved'.
Trim the 'When to Use' section (it duplicates the skill description) and the 'Related Patterns' section (vague without links), or convert Related Patterns into actual file references.
Add a brief troubleshooting section covering common failures: unpermitted params, incorrect index values, Turbo Stream not appending.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The skill includes some unnecessary explanatory text (e.g., 'When to Use' section restates the description, 'Related Patterns' section is vague filler) and could be tightened, but most content is substantive and pattern-specific rather than explaining basics Claude already knows. | 2 / 3 |
Actionability | Provides concrete, executable code examples across all six components—model setup, Slim partials, Ruby controller actions, Turbo Stream views, Stimulus JavaScript controller, routes, and strong parameters. Examples are copy-paste ready and cover the full implementation. | 3 / 3 |
Workflow Clarity | The six numbered components provide a clear sequence, and the implementation checklist is helpful. However, there are no explicit validation checkpoints or feedback loops—no guidance on verifying that Turbo Streams are working correctly, that nested attributes are being saved, or how to debug common failures. | 2 / 3 |
Progressive Disclosure | Content is reasonably structured with clear sections and a checklist, but it's a long monolithic file with no references to external files for detailed topics like the Stimulus controller setup or advanced patterns. The 'Related Patterns' section mentions topics without linking to anything. | 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
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