CtrlK
BlogDocsLog inGet started
Tessl Logo
SkillPublic

progressive-blur

Create a layered CSS progressive blur (top or bottom) using multiple backdrop-filter masks for depth and softness. Use when asked for “progressive blur”, “gradient blur overlay”, or stepped blur masks that fade from an edge of the viewport.

Quality

90%

Does it follow best practices?

Run evals on this skill

Adds up to 20 points to the overall score

View guide
SecuritybySnyk

Passed

No findings from the security scan

SKILL.md
Quality
Evals
Security

Quality

Content

81%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.

Highly actionable body: complete executable snippets for both placements, a clear simple workflow, and useful pitfalls/knobs sections. The main weakness is token efficiency — the bottom-blur snippet duplicates the top-blur snippet almost entirely, and one backdrop-filter caveat is stated twice.

Suggestions

Replace the second full CSS block with a short note that the bottom variant is identical except for `to bottom` in the masks, `inset: auto 0 0 0`, and the height value — the 'Customization knobs' section already documents the direction flip.

State the backdrop-filter-needs-background caveat once (either in the usage checklist or in 'Common pitfalls', not both).

If keeping both snippets for copy-paste readiness is preferred, trim the 'Customization knobs' direction bullet as redundant with the explicit second snippet.

DimensionReasoningScore

Conciseness

The two ~100-line CSS blocks are near-duplicates differing only in gradient direction, inset, and height — and the 'Customization knobs' section already documents that flip — so the second block is largely padded. The backdrop-filter-needs-content caveat is also explained twice (usage checklist and pitfalls).

3 / 5

Actionability

Both snippets are complete, executable HTML+CSS covering the two common placements (top and bottom), copy-paste ready, with concrete customization knobs (height, blur strength, steps, direction) and a usage checklist.

5 / 5

Workflow Clarity

For this simple, non-destructive skill the three-step workflow (confirm placement/height/z-index → provide matching snippet and checklist → offer targeted tweaks) is unambiguous, and the 'Questions to ask when specs are missing' section supplies the missing-spec checkpoints.

5 / 5

Progressive Disclosure

Sections are clearly headed and no external references are needed, so navigation is easy; however, ~200 lines of near-duplicate inline CSS could be collapsed to one canonical snippet plus the direction-flip knob, leaving minor organization gaps versus the anchor-5 structure.

4 / 5

Total

17

/

20

Passed

Description

95%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 description: concrete capability statement paired with an explicit 'Use when...' clause containing natural trigger phrases and synonyms. Its only limitation is that it expresses one composite action rather than enumerating several distinct capabilities, which is acceptable given the skill's narrow scope.

DimensionReasoningScore

Specificity

Names the concrete action ("Create a layered CSS progressive blur") and its mechanism ("multiple backdrop-filter masks") with placement variants ("top or bottom"), but describes a single composite action rather than the multiple distinct actions of the anchor-5 example.

4 / 5

Completeness

Explicitly answers both questions: the "what" (layered CSS progressive blur via backdrop-filter masks for depth and softness) and the "when" ("Use when asked for 'progressive blur', 'gradient blur overlay', or stepped blur masks...").

5 / 5

Trigger Term Quality

Includes the natural phrases users would say — "progressive blur", "gradient blur overlay", "stepped blur masks", "fade from an edge of the viewport" — with synonym coverage comprehensive for this domain (file extensions are not applicable).

5 / 5

Distinctiveness Conflict Risk

Occupies a clear niche (progressive/stepped blur overlays) with distinct trigger phrases, so it is unlikely to fire for generic CSS, gradient, or backdrop-filter skills.

5 / 5

Total

19

/

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.

Validation — 16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository

MengTo/Skills

Path

agent-skills/web-design/progressive-blur/SKILL.md

Reviewed

Table of Contents

Is this your skill?

If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.