ClawHub

Aspect Calc

v1.0.0

Calculate aspect ratios from dimensions and find missing width or height. Use when the user asks to calculate an aspect ratio, find the height for a given wi...

⭐ 0· 132·1 current·1 all-time
byOmar Hernandez@ohernandez-dev-blossom

Install

OpenClaw Prompt Flow

Install with OpenClaw

Best for remote or guided setup. Copy the exact prompt, then paste it into OpenClaw for ohernandez-dev-blossom/aspect-calc.

Previewing Install & Setup.
Prompt PreviewInstall & Setup
Install the skill "Aspect Calc" (ohernandez-dev-blossom/aspect-calc) from ClawHub.
Skill page: https://clawhub.ai/ohernandez-dev-blossom/aspect-calc
Keep the work scoped to this skill only.
After install, inspect the skill metadata and help me finish setup.
Use only the metadata you can verify from ClawHub; do not invent missing requirements.
Ask before making any broader environment changes.

Command Line

CLI Commands

Use the direct CLI path if you want to install manually and keep every step visible.

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openclaw skills install aspect-calc

ClawHub CLI

Package manager switcher

npx clawhub@latest install aspect-calc
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Purpose & Capability
The name/description (aspect ratio calculations) match the SKILL.md instructions. No unrelated binaries, env vars, or config paths are requested.
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Instruction Scope
Runtime instructions are limited to parsing inputs and performing arithmetic (GCD, division, rounding). There are no directives to read files, access environment variables, or transmit data externally.
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Install Mechanism
No install spec or code files are present (instruction-only), so nothing is downloaded or written to disk.
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Credentials
The skill requires no environment variables or credentials, which is appropriate for a local math helper.
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Persistence & Privilege
always is false and the skill does not request persistent/system privileges. Autonomous invocation is allowed by default but is low-risk here because the skill has no external access.
Assessment
This skill is an instruction-only aspect-ratio calculator and appears coherent and low-risk: it only describes local arithmetic (GCD and scaling) and asks for no credentials or installs. You can safely use it for interactive aspect-ratio questions. If you plan to trust results for critical uses (manufacturing, printing, legal dimensions), validate outputs independently or run a trusted implementation, since the SKILL.md is just prose and may depend on correct parsing/rounding rules when implemented.

Like a lobster shell, security has layers — review code before you run it.

latestvk978wc7fe9nx7z4958vb5zrbeh83dr4v
132downloads
0stars
1versions
Updated 1mo ago
v1.0.0
MIT-0
Omar Hernandez@ohernandez-dev-blossom
latest
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Aspect Ratio Calculator

Calculate simplified aspect ratios from pixel dimensions, find missing dimensions from a known ratio, and report decimal and percentage equivalents using GCD simplification.

Input

  • Two dimensions (width and height in pixels), OR
  • A known ratio (e.g., 16:9) and one dimension (width or height), to calculate the missing value

Output

  • Simplified ratio (e.g., 16:9)
  • Decimal ratio (e.g., 1.7778)
  • Percentage (width as % of height, e.g., 177.78%)
  • If solving for missing dimension: the calculated value

Instructions

  1. Parse the user's input to determine the mode:
    • Mode A: two pixel dimensions given → calculate ratio and metadata
    • Mode B: ratio + one dimension given → calculate the missing dimension
  2. Mode A — Ratio from dimensions: a. Compute divisor = GCD(width, height) using the Euclidean algorithm: GCD(a, b) = b === 0 ? a : GCD(b, a % b) b. Simplified ratio: (width / divisor):(height / divisor) c. Decimal: (width / height).toFixed(4) d. Percentage: (width / height * 100).toFixed(2)%
  3. Mode B — Dimension from ratio: a. Parse the ratio as rW:rH b. If width is given: height = round(width * rH / rW) c. If height is given: width = round(height * rW / rH)
  4. Identify if the ratio matches a known standard and name it:
    • 16:9 → HD Video / Widescreen
    • 4:3 → Classic TV / Standard
    • 1:1 → Square
    • 21:9 → Ultrawide
    • 9:16 → Mobile Video / Story
    • 3:4 → Portrait Classic
    • 3:2 → 35mm Film
    • 2:3 → Portrait Photo
  5. Output all results clearly.

Options

  • width: positive integer
  • height: positive integer
  • ratio: string in W:H format — for Mode B
  • locked: if true, preserve the current ratio when one dimension changes

Examples

Input: "What is the aspect ratio of 1920x1080?" Output:

  • Simplified ratio: 16:9 (HD Video / Widescreen)
  • Decimal: 1.7778
  • Percentage: 177.78% (width is 177.78% of height)

Input: "I have a 16:9 video, width is 1280px — what height do I need?" Output:

  • Width: 1280px, Ratio: 16:9
  • Height: 720px
  • (1280 × 9 / 16 = 720)

Input: "Simplify 2560x1440" Output:

  • Simplified ratio: 16:9 (HD Video / Widescreen)
  • Decimal: 1.7778
  • Percentage: 177.78%

Input: "What is the aspect ratio of 800x600?" Output:

  • Simplified ratio: 4:3 (Classic TV / Standard)
  • Decimal: 1.3333
  • Percentage: 133.33%

Input: "Give me height for a 21:9 ultrawide at 2560px width" Output:

  • Width: 2560px, Ratio: 21:9
  • Height: 1097px
  • (2560 × 9 / 21 ≈ 1097)

Error Handling

  • If either dimension is 0 or negative, return an error: "Dimensions must be positive integers greater than 0."
  • If a ratio is provided in an invalid format (not W:H), ask the user to use the W:H format (e.g., 16:9).
  • If both dimensions result in the same ratio numerator and denominator equal to 1 (e.g., prime dimensions with no common factor), output the ratio as-is and note it cannot be simplified further.

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