CtrlK
BlogDocsLog inGet started
Tessl Logo

fal-upscale

Upscale and enhance image and video resolution using AI super-resolution models hosted on fal.ai.

47

Quality

50%

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

Fix and improve this skill with Tessl

tessl review fix ./skills/fal-upscale/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

42%

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

The skill body is well-organized and lean as an overview, but it is essentially a pointer card: all substantive, executable upscaling guidance is deferred to an external GitHub README, leaving it non-actionable. The verbatim duplication of the frontmatter description, upstream URL, and category also wastes tokens.

Suggestions

Replace the 'inspect the upstream README' deferral with at least one concrete, executable example (e.g., the fal.ai model endpoint or a one-line CLI call that actually performs an upscale).

Add a minimal invocation snippet showing how to run the upstream workflow once installed, so the skill is actionable without leaving SKILL.md.

Remove the verbatim duplication of the description and the frontmatter upstream URL/category from the body to tighten conciseness.

DimensionReasoningScore

Conciseness

The body is lean and avoids explaining known concepts, but the 'What it does' section restates the frontmatter description verbatim and 'Source' repeats the upstream URL and category already in frontmatter, so it could be tightened; not score 3 because those tokens do not earn their place.

2 / 3

Actionability

The only concrete command is `open https://github.com/fal-ai-community/skills`, which does not perform upscaling, and the real guidance defers to 'inspect the upstream README for exact paths' — it describes and redirects rather than instructing the actual task, matching the 'describes rather than instructs' and the 'see X for more details' bad-example pattern.

1 / 3

Workflow Clarity

A loose sequence is present (install the upstream bundle, then invoke by name or trigger phrase), but there is no workflow or validation checkpoints for the actual upscaling operation; not score 1 because a sequence exists, not score 3 because no checkpoints or real task steps are given.

2 / 3

Progressive Disclosure

The body is a clear overview split into well-organized sections (What it does, Source, How to use) with a single well-signaled one-level reference to the upstream repo; for a sub-50-line catalogue entry the simple-skills note allows 3 on organization alone.

3 / 3

Total

8

/

12

Passed

Description

57%

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 specific and distinctive about a narrow niche but stops at naming the domain and one or two actions. It lacks an explicit 'Use when...' trigger clause and broader natural-language trigger variations, which cap completeness and trigger-term quality at the mid level.

Suggestions

Append a 'Use when...' clause naming concrete trigger contexts (e.g., 'Use when upscaling low-resolution photos or video frames to 4K, restoring detail, or increasing output resolution').

Broaden the action list beyond 'upscale and enhance' to distinct concrete capabilities (e.g., restore detail, denoise, increase resolution to a target size) to reach specificity 3.

Add common natural trigger terms (4K, HD, sharpen, increase resolution) to improve trigger-term coverage.

DimensionReasoningScore

Specificity

Names the domain and a couple of actions ("Upscale and enhance image and video resolution") but does not list multiple distinct concrete actions like the score-3 anchor; "upscale" and "enhance" are near-synonymous rather than a comprehensive action set.

2 / 3

Completeness

Clearly answers what the skill does, but the description has no "Use when..." clause or explicit trigger guidance; per the judging guidelines a missing 'Use when' clause caps completeness at 2.

2 / 3

Trigger Term Quality

Includes some natural terms (upscale, enhance, resolution, super-resolution, image, video) but misses common variations users would say (e.g., 4K, HD, increase/sharpen quality), matching the 'some relevant keywords but missing common variations' anchor.

2 / 3

Distinctiveness Conflict Risk

Targets a clear niche (AI super-resolution upscaling via fal.ai) with distinctive vocabulary, making it unlikely to trigger for the wrong skill; not a score below because the niche is specific rather than generic.

3 / 3

Total

9

/

12

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

frontmatter_unknown_keys

Unknown frontmatter key(s) found; consider removing or moving to metadata

Warning

Total

15

/

16

Passed

Repository
nexu-io/open-design
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.