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Use when auditing metadata, crawlability, structured data, or indexability related to Implement valid BreadcrumbList schema. Verify the rendered HTML and HTTP response rather than relying only on source files.

59

Quality

68%

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SecuritybySnyk

Passed

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tessl review fix ./skills/breadcrumb/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

71%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

The body is a clean, brief overview with excellent progressive disclosure — a single well-signaled reference file holds the code example and verification detail. Its weakness is actionability: the inline Fix guidance is directional rather than executable, so Claude must consult the reference before it can act concretely.

Suggestions

Inline a minimal BreadcrumbList JSON-LD snippet (or the 2-3 required `ListItem` fields) in the Fix section so the body is actionable without opening the reference.

Add an explicit inline validation step (e.g. check the schema against Google's Rich Results Test and confirm it matches the visible trail) rather than only deferring verification to the reference.

Trim the generic opener about what breadcrumbs do for search engines and the repeated "related to Implement valid BreadcrumbList schema" phrasing.

DimensionReasoningScore

Conciseness

The ~30-line body is lean and well-sectioned, assuming Claude's competence throughout. Only the generic opener "Breadcrumbs help search engines understand your site's structure" and the repeated "related to Implement valid BreadcrumbList schema" phrasing are minor over-explanation that could be trimmed, which fits the efficient-with-minor-instances anchor rather than the fully lean one.

4 / 5

Actionability

Concrete domain guidance is present ("Implement a JSON-LD script that defines each level of the page's hierarchy using `ListItem` properties"), but the body contains no executable code, commands, or a worked example — the actual JSON-LD snippet lives in references/rule.md. This matches the anchor for some concrete but incomplete guidance with key details deferred.

3 / 5

Workflow Clarity

The Check → Fix → Explain → Code Review sections give a clear, coherent audit-remediate-review sequence with verification-oriented checkpoints ("Verify that the page contains valid `BreadcrumbList` structured data matching the visible breadcrumbs"; "describe how to verify the final page output"). It is not level 5 because explicit validation/feedback-loop steps are only implied here and deferred to the reference rather than stated inline.

4 / 5

Progressive Disclosure

The body is a concise, well-organized overview with a clearly signaled, one-level-deep reference ("For full implementation details, code examples, and framework-specific guidance, see `references/rule.md`"); the referenced file exists and nests no further. Content is appropriately split between overview and detail, making navigation easy.

5 / 5

Total

16

/

20

Passed

Description

66%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

The description has a strong, explicit 'Use when' trigger clause and reasonable keyword coverage, and the rendered-HTML/HTTP-response verification angle is a genuinely distinctive touch. Its main weakness is that the 'what' — the skill's actual purpose (auditing/implementing breadcrumb schema) — is buried in the awkward phrase "related to Implement valid BreadcrumbList schema" rather than stated as a direct third-person capability.

Suggestions

State the core capability directly in third person, e.g. "Audits and implements BreadcrumbList structured data for breadcrumb navigation…" instead of the awkward "related to Implement valid BreadcrumbList schema".

Add missing natural trigger terms such as "breadcrumbs", "breadcrumb trail", "JSON-LD", and "rich results" to broaden keyword coverage.

Trim the broad leading terms ("metadata, crawlability, structured data, or indexability") toward breadcrumb-specific triggers to reduce overlap with sibling SEO rules.

DimensionReasoningScore

Specificity

The description names the domain ("BreadcrumbList schema", "rendered HTML", "HTTP response") and 1-2 concrete actions ("auditing metadata, crawlability, structured data, or indexability", "Verify the rendered HTML and HTTP response"), but the core capability is only obliquely embedded in "related to Implement valid BreadcrumbList schema". This matches the anchor for naming a domain with 1-2 concrete actions rather than the level-4 list of several specific actions.

3 / 5

Completeness

An explicit "Use when auditing…" clause answers 'when' clearly, and a partial 'what' is stated ("Verify the rendered HTML and HTTP response rather than relying only on source files"). It is not level 5 because the skill's primary action (implement/fix breadcrumb schema) is only implied by the awkward phrase "related to Implement valid BreadcrumbList schema" rather than stated as a capability.

4 / 5

Trigger Term Quality

"metadata, crawlability, structured data, indexability" and "BreadcrumbList schema" are natural phrases an SEO auditor would say, giving good keyword coverage. It falls short of level 5 because common variations like "breadcrumbs", "breadcrumb trail", "JSON-LD", and "rich results" are missing.

4 / 5

Distinctiveness Conflict Risk

"BreadcrumbList schema" is a distinct, specific trigger that pins the skill to one structured-data type. There is minor overlap risk because the broad leading terms "metadata, crawlability, structured data, or indexability" could also match sibling SEO checklist rules (canonical URLs, robots, meta tags).

4 / 5

Total

15

/

20

Passed

Validation

93%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation — 15 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

metadata_version

'metadata.version' is missing

Warning

Total

15

/

16

Passed

Repository
thedaviddias/Front-End-Checklist
Reviewed

Table of Contents

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