lazy-loading-implementer
Lazy Loading Implementer - Auto-activating skill for Frontend Development. Triggers on: lazy loading implementer, lazy loading implementer Part of the Frontend Development skill category.
36
3%
Does it follow best practices?
Impact
96%
1.02xAverage score across 3 eval scenarios
Passed
No known issues
Optimize this skill with Tessl
npx tessl skill review --optimize ./planned-skills/generated/05-frontend-dev/lazy-loading-implementer/SKILL.mdQuality
Discovery
7%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 very weak skill description that essentially only restates the skill name without providing any meaningful detail about capabilities, use cases, or trigger conditions. It reads as auto-generated boilerplate with no human-authored content describing what the skill actually does or when it should be selected.
Suggestions
Add specific concrete actions the skill performs, e.g., 'Implements lazy loading for images, components, and routes using Intersection Observer API, React.lazy(), dynamic imports, and native loading attributes.'
Add an explicit 'Use when...' clause with natural trigger terms, e.g., 'Use when the user asks about lazy loading, deferred loading, code splitting, below-the-fold content, or improving page load performance.'
Remove the duplicated trigger term and replace with diverse natural language variations users might actually say, such as 'lazy load images', 'defer component loading', 'reduce initial bundle size', 'Intersection Observer'.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | The description only names the skill ('Lazy Loading Implementer') without describing any concrete actions. There are no specific capabilities listed such as 'implements image lazy loading', 'configures Intersection Observer', or 'adds code-splitting with dynamic imports'. | 1 / 3 |
Completeness | The description fails to answer 'what does this do' beyond the name itself, and there is no explicit 'when to use' clause. The 'Triggers on' line just repeats the skill name and provides no meaningful guidance. | 1 / 3 |
Trigger Term Quality | The only trigger terms are 'lazy loading implementer' repeated twice. It misses natural user phrases like 'lazy load images', 'defer loading', 'code splitting', 'Intersection Observer', 'performance optimization', 'below the fold', or 'dynamic imports'. | 1 / 3 |
Distinctiveness Conflict Risk | The term 'lazy loading' is somewhat specific to a particular frontend technique, which gives it some distinctiveness. However, the lack of detail about what kind of lazy loading (images, components, routes, code splitting) means it could overlap with general performance or frontend optimization skills. | 2 / 3 |
Total | 5 / 12 Passed |
Implementation
0%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This skill is an empty shell with no actual instructional content. It consists entirely of meta-descriptions about what the skill supposedly does without providing any concrete guidance on lazy loading implementation (e.g., React.lazy, Intersection Observer, dynamic imports, image lazy loading). It fails on every dimension of the rubric.
Suggestions
Replace the meta-description sections with actual lazy loading implementation code examples (e.g., React.lazy/Suspense, native loading='lazy' attribute, Intersection Observer API patterns)
Add concrete, executable code snippets for common lazy loading scenarios: component code-splitting, image lazy loading, and route-based splitting
Include a workflow for deciding which lazy loading strategy to use based on the use case (images vs components vs routes) with validation steps like Lighthouse performance audits
Remove all 'When to Use' and 'Example Triggers' boilerplate sections and replace with actionable technical content
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The content is entirely filler and meta-description. It explains what the skill does in abstract terms without providing any actual technical content. Every section describes rather than instructs, wasting tokens on information Claude doesn't need. | 1 / 3 |
Actionability | There is zero concrete guidance—no code examples, no commands, no specific implementation patterns for lazy loading. The content is entirely vague descriptions like 'Provides step-by-step guidance' without actually providing any. | 1 / 3 |
Workflow Clarity | No workflow, steps, or process is defined at all. The skill claims to provide 'step-by-step guidance' but contains no steps whatsoever. | 1 / 3 |
Progressive Disclosure | No structure beyond boilerplate headings. No references to detailed resources, no examples, no navigation to related content. The content is a monolithic block of meta-description with no useful organization. | 1 / 3 |
Total | 4 / 12 Passed |
Validation
81%Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.
Validation — 9 / 11 Passed
Validation for skill structure
| Criteria | Description | Result |
|---|---|---|
allowed_tools_field | 'allowed-tools' contains unusual tool name(s) | Warning |
frontmatter_unknown_keys | Unknown frontmatter key(s) found; consider removing or moving to metadata | Warning |
Total | 9 / 11 Passed | |
- Commit
3076d78
- Reviewed
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