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video-comparer SKILL.md skillA

video-comparer from nicepkg/ai-workflow is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add nicepkg/ai-workflow/video-comparer@git:20260118.be84779

Pins git:20260118.be84779 in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: nicepkg/ai-workflow
Path: workflows/video-creator-workflow/.claude/skills/video-comparer/SKILL.md
Versions recorded: 1
Latest version: git:20260118.be84779, committed Jan 18, 2026
Size: 5,422 bytes
Repository stars: 291
License: MIT

This skill should be used when comparing two videos to analyze compression results or quality differences. Generates interactive HTML reports with quality metrics (PSNR, SSIM) and frame-by-frame visual comparisons. Triggers when users mention "compare videos", "video quality", "compression analysis", "before/after compression", or request quality assessment of compressed videos.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Video Comparer

## Overview

Compare two videos and generate an interactive HTML report analyzing compression results. The script extracts video metadata, calculates quality metrics (PSNR, SSIM), and creates frame-by-frame visual comparisons with three viewing modes: slider, side-by-side, and grid.

## When to Use This Skill

Use this skill when:
- Comparing original and compressed videos
- Analyzing video compression quality and efficiency
- Evaluating codec performance or bitrate reduction impact
- Users mention "compare videos", "video quality", "compression analysis", or "before/after compression"

## Core Usage

### Basic Command

```bash
python3 scripts/compare.py original.mp4 compressed.mp4
```

Generates `comparison.html` with:
- Video parameters (codec, resolution, bitrate, duration, file size)
- Quality metrics (PSNR, SSIM, size/bitrate reduction percentages)
- Frame-by-frame comparison (default: frames at 5s intervals)

### Command Options

```bash
# Custom output file
python3 scripts/compare.py original.mp4 compressed.mp4 -o report.html

# Custom frame interval (larger = fewer frames, faster processing)
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add nicepkg/ai-workflow/video-comparer@sha256:b9029fec57bc4bac

The line at the top of this page pins the label git:20260118.be84779, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

[![mdr](https://markdownregistry.com/badge/art_h64wqhwrbtse4huk.svg)](https://markdownregistry.com/a/art_h64wqhwrbtse4huk)

5 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Jan 18, 2026.

version	committed	commit	size	audit
git:20260118.be84779 latest	2026-01-18	be84779	5,422 B	A	view

Audit of the latest version

A 17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.

pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (5422 bytes)
pass: No zero-width or bidi control characters
pass: No instruction hidden inside an HTML comment
pass: No link to an exfiltration or paste host
pass: No credential-shaped string
pass: No instruction to send local credentials anywhere
pass: No text hidden with inline styles
pass: No prompt-injection phrasing
pass: No curl or wget piped into a shell
pass: No recursive delete of root, home or parent
pass: No instruction to read or print local credentials
pass: No base64 blob over 200 characters
pass: No link to a raw IP address
pass: No script tag

Source

GitHub

nicepkg/ai-workflow · 291 stars · license MIT · pushed 2026-01-20 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_h64wqhwrbtse4huk
GET https://markdownregistry.com/api/v1/resolve?ref=nicepkg/ai-workflow/video-comparer
GET https://markdownregistry.com/api/v1/blob/b9029fec57bc4bac38c8ffbcf6779c7dc2285d1e30c4ee2ad0d3d480e237ac24

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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