action-cable
Setup and use ActionCable for real-time features in Rails applications using WebSockets. Use when implementing real-time updates, live notifications, broadcasting changes, or when the user mentions WebSockets, ActionCable, channels, broadcasting, or Turbo Streams over cable.
65
77%
Does it follow best practices?
Impact
—
No eval scenarios have been run
Passed
No known issues
Optimize this skill with Tessl
npx tessl skill review --optimize ./skills/action-cable/SKILL.mdQuality
Discovery
89%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 strong skill description with excellent trigger term coverage and a clear 'Use when...' clause that makes it easy for Claude to select appropriately. The main weakness is that the 'what' portion could be more specific about concrete actions beyond 'setup and use'. Overall, it performs well across all dimensions.
Suggestions
Expand the capability description with more specific actions, e.g., 'Setup and use ActionCable for real-time features: create channels, configure subscriptions, broadcast messages, integrate Turbo Streams over cable.'
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Names the domain (ActionCable, Rails, WebSockets) and mentions some actions ('setup and use', 'real-time features'), but doesn't list multiple specific concrete actions like 'create channels, configure subscriptions, broadcast messages, set up Turbo Streams'. | 2 / 3 |
Completeness | Clearly answers both 'what' (setup and use ActionCable for real-time features in Rails) and 'when' (explicit 'Use when...' clause listing multiple trigger scenarios and terms). | 3 / 3 |
Trigger Term Quality | Excellent coverage of natural terms users would say: 'real-time updates', 'live notifications', 'broadcasting', 'WebSockets', 'ActionCable', 'channels', 'Turbo Streams over cable'. These are all terms a developer would naturally use when seeking this functionality. | 3 / 3 |
Distinctiveness Conflict Risk | Highly distinctive with specific technology references (ActionCable, WebSockets, Turbo Streams over cable, channels, broadcasting) that clearly carve out a niche unlikely to conflict with other skills. | 3 / 3 |
Total | 11 / 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 excellent concrete code examples covering the full ActionCable + Turbo Streams stack. Its main weaknesses are a lack of sequential workflow guidance (no clear setup order or validation steps) and some minor verbosity in explaining concepts Claude already knows. The security considerations section is a good addition but reads more like general advice than project-specific constraints.
Suggestions
Add a brief sequential setup checklist at the top (e.g., '1. Configure cable.yml → 2. Set up Connection → 3. Add JS consumer → 4. Verify connection in browser console → 5. Add channels/broadcasts') with explicit verification steps.
Remove the empty ApplicationCable::Channel example and the explanatory overview paragraph — Claude already knows these patterns and what ActionCable is.
Add a verification step after initial setup, such as 'Open browser console and confirm WebSocket connection at /cable before proceeding to broadcasting.'
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The skill is mostly efficient but includes some unnecessary filler like 'Base channel class for all application channels' and the overview paragraph explaining what ActionCable is. The empty Channel class example adds little value since Claude already knows this pattern. However, the code examples themselves are lean and relevant. | 2 / 3 |
Actionability | The skill provides fully executable, copy-paste ready code examples across Ruby, JavaScript, YAML, and Slim. The broadcasting examples with Turbo Streams are concrete and include specific method calls with realistic parameters, and the organization-scoped notification example ties everything together end-to-end. | 3 / 3 |
Workflow Clarity | The content is organized by component rather than as a sequential workflow. While the sections are clear, there's no explicit step-by-step setup sequence (e.g., 'first configure cable.yml, then set up connection, then create channels, then add client-side code'). There are also no validation checkpoints to verify the WebSocket connection is working before proceeding to broadcasting. | 2 / 3 |
Progressive Disclosure | The content is well-sectioned with clear headers, but it's somewhat monolithic — the configuration, debugging, and security sections could potentially be separated or the document could benefit from a quick-start summary at the top with references to detailed sections. However, for a skill of this size (~120 lines), the inline approach is reasonable. | 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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