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offline-fallback

Use when adding PWA capabilities, implementing a service worker, or improving the experience for users on unreliable network connections.

51

Quality

56%

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/offline-fallback/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 well-organized overview that appropriately defers implementation detail to a real one-level-deep reference, with a clear sequence and verification steps. Its main weakness is actionability: the body itself contains no executable code, relying entirely on the reference for concrete examples.

DimensionReasoningScore

Conciseness

The body is lean and well-sectioned (Quick Reference, Check, Fix, Explain, Code Review); the only mild over-explanation is the opening rationale paragraph about why a custom offline page matters, which Claude could largely infer.

4 / 5

Actionability

Quick Reference lists concrete steps ('Create a minimal /offline HTML page that works without any network requests', 'Pre-cache the offline page during the service worker install event') but all executable code is deferred to references/rule.md, so the body itself lacks copy-paste-ready detail.

3 / 5

Workflow Clarity

A clear four-step sequence in Quick Reference is paired with explicit validation via the Check section and Code Review criteria; this is a non-destructive single-purpose skill, so the validation present is sufficient for a 4.

4 / 5

Progressive Disclosure

The body is a concise overview with a single clearly-signaled one-level-deep reference ('For full implementation details, code examples, and framework-specific guidance, see references/rule.md'), and that file exists and contains the deferred detail — no nested references.

5 / 5

Total

16

/

20

Passed

Description

41%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 a well-formed trigger clause but functions only as a 'when' — it never names what the skill does (an offline fallback page), and it omits the most natural keyword ('offline'). Strengthening it requires adding the 'what' and the offline trigger term.

Suggestions

Add a 'what' clause naming the concrete capability, e.g. 'Provide a custom offline fallback page served by a service worker when navigation requests fail.'

Include the natural trigger term 'offline' (and variations like 'offline page', 'offline support') so users searching for offline behavior match this skill.

Narrow the trigger from broad PWA/service-worker framing to the offline-fallback niche to reduce overlap with sibling PWA skills.

DimensionReasoningScore

Specificity

The description names the domain and a few actions ('adding PWA capabilities, implementing a service worker, or improving the experience for users on unreliable network connections') but never states the skill's actual concrete capability — providing an offline fallback page — so coverage is not comprehensive.

3 / 5

Completeness

It provides an explicit, well-formed 'when' clause ('Use when adding PWA capabilities, implementing a service worker, or improving...') but no 'what' — the description never states what the skill does, matching the 'only when is present without what' anchor.

2 / 5

Trigger Term Quality

It includes natural terms ('PWA capabilities', 'service worker', 'unreliable network connections') but omits the most common phrasing a user would actually say — 'offline' / 'offline page' / 'offline support' — leaving a notable synonym gap.

3 / 5

Distinctiveness Conflict Risk

Triggers are PWA-specific and distinct from unrelated skills, but the broad framing ('adding PWA capabilities', 'implementing a service worker') could overlap with sibling PWA skills covering other aspects such as caching or installability.

3 / 5

Total

11

/

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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