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404-page

Use when reviewing templates, rendered HTML, or shared components related to Create a custom 404 error page. Validate the final browser-facing markup, not just the source framework abstraction.

64

Quality

78%

Does it follow best practices?

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SecuritybySnyk

Passed

No findings from the security scan

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tessl review fix ./skills/404-page/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

72%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 well-structured and appropriately splits detail into a single clearly referenced file, with actionable review checks. Adding an explicit verification/checklist step for the review workflow would raise workflow clarity.

Suggestions

Add an explicit verification step to the Check section, e.g. a short checklist (HTTP status confirmed 404, navigation/search present, branding consistent) so the review workflow has concrete checkpoints.

Trim the overlap between the Quick Reference bullets and the Check/Fix prose to remove minor redundancy and tighten token use.

Consider noting the expected review output format (e.g. flag specific elements/routes) in the Code Review section to make the action more concrete.

DimensionReasoningScore

Conciseness

The body is lean and assumes Claude's competence, with only minor redundancy where the Quick Reference bullets restate the Check/Fix prose.

4 / 5

Actionability

It gives concrete, specific checks ('Confirm the route returns HTTP 404 and not a branded page with a 200 response', 'returns status code 404') with minor gaps; executable code lives appropriately in the reference file.

4 / 5

Workflow Clarity

The Check/Fix/Explain/Code Review sections provide a rough review sequence, but there are no explicit validation checkpoints or feedback loops within the review process itself.

3 / 5

Progressive Disclosure

The body is a concise overview with a clearly signaled one-level reference ('see references/rule.md') to a real bundle file, fitting a simple single-purpose skill.

5 / 5

Total

16

/

20

Passed

Description

83%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 is well-constructed with an explicit 'Use when...' clause and concrete actions, clearly scoping the skill to 404-page template and markup review. Minor improvements in trigger synonyms and tighter scoping would push it to the top level.

DimensionReasoningScore

Specificity

The description lists several specific review/validate actions across 'templates, rendered HTML, or shared components' and 'Validate the final browser-facing markup', with only minor coverage gaps.

4 / 5

Completeness

It explicitly answers both what (review and validate markup) and when ('Use when reviewing templates, rendered HTML, or shared components related to...') with concrete trigger phrases.

5 / 5

Trigger Term Quality

It includes natural terms like '404 error page', 'templates', 'rendered HTML', and 'browser-facing markup', but misses common synonyms such as 'not found page' or 'error page'.

4 / 5

Distinctiveness Conflict Risk

The 404-page scope gives it a clear niche, though the broad 'templates, rendered HTML, or shared components' framing creates minor overlap risk with general HTML-review skills.

4 / 5

Total

17

/

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.

Validation15 / 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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