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html-artifacts

Use when the user asks to create, generate, visualize, or turn material into a standalone HTML artifact, self-contained or single-file .html report, interactive explainer, interactive illustration or visualization, visual walkthrough or handoff, or HTML presentation or slide deck. Handles source-grounded codebase and architecture, feature, PR or diff, implementation recap, incident timeline, option comparison, causal, and data-report explanations. Not for prose-only analysis or reviews, production web apps or dashboards, websites, HTML email, or ordinary frontend/UI implementation.

77

Quality

96%

Does it follow best practices?

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SecuritybySnyk

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SKILL.md
Quality
Evals
Security

Quality

Content

92%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.

A well-structured, mostly lean skill body with a clear sequenced workflow, explicit validation feedback loop, executable commands, and properly separated one-level-deep references. The only minor weakness is some over-explanation in the anti-slop enumeration that could be tightened.

Suggestions

Tighten the 'presentation slop' list by consolidating closely related items (e.g., the decorative and animation bullets) to reduce length without losing the gate.

Consider folding the repeated 'Not for / do not' boundary reminders into the existing Non-Negotiables or a single boundaries section to avoid restating exclusions across multiple steps.

The implementation step delegates most component markup to the bundled contracts file; a single minimal inline markup skeleton would let the step stand alone without loading the reference.

DimensionReasoningScore

Conciseness

Largely lean and assumes Claude's competence (no basic HTML/CSS primers), but the long 'presentation slop' enumeration and some repeated boundary reminders add length that could be trimmed slightly; not quite 'every token earns its place'.

4 / 5

Actionability

Provides concrete, executable guidance: exact markup ('<style id="html-artifacts-components"></style>'), a copy-paste command ('python scripts/inline-components.py /absolute/path/to/artifact.html'), and 'xdg-open /absolute/path/to/artifact.html', covering the common implementation and delivery cases.

5 / 5

Workflow Clarity

A clearly sequenced 7-step workflow with an explicit validation checkpoint in step 6 (a 10-item checklist plus 'Fix issues and repeat the checks on the final file'), providing a feedback loop for the fragile build-and-validate operation.

5 / 5

Progressive Disclosure

The body is a concise overview with four well-signaled one-level-deep references (content patterns, component contracts, quality and validation, research basis), all verified to exist, organized in a clear References section for easy navigation.

5 / 5

Total

19

/

20

Passed

Description

100%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.

A strong, comprehensive description that clearly states capabilities, natural trigger terms, use conditions, and exclusion boundaries. It distinguishes itself well from neighboring skills via the explicit 'Not for...' clause.

DimensionReasoningScore

Specificity

Names the domain (HTML artifacts) and lists multiple concrete action verbs ('create, generate, visualize') plus specific artifact types (single-file .html report, interactive explainer, visual walkthrough, slide deck), giving comprehensive coverage of capabilities.

5 / 5

Completeness

Explicitly answers both what ('Handles source-grounded codebase and architecture, feature, PR or diff, implementation recap, incident timeline, option comparison, causal, and data-report explanations') and when ('Use when the user asks to create, generate, visualize...'), with concrete trigger phrases.

5 / 5

Trigger Term Quality

Comprehensive natural triggers including synonyms and the file extension: 'standalone HTML artifact', 'single-file .html report', 'interactive explainer', 'visual walkthrough or handoff', 'HTML presentation or slide deck', with the natural 'Use when the user asks to...' framing.

5 / 5

Distinctiveness Conflict Risk

Clear niche (standalone HTML artifacts) with an explicit negative boundary ('Not for prose-only analysis or reviews, production web apps or dashboards, websites, HTML email, or ordinary frontend/UI implementation') that minimizes conflict with adjacent skills.

5 / 5

Total

20

/

20

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.

Validation16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository
joshuadavidthomas/agent-skills
Reviewed

Table of Contents

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