Agent Skills: Long-Form Video Mastery (2025-2026)

Complete YouTube long-form video optimization for maximum watch time, SEO, and viral potential. PROACTIVELY activate for: (1) YouTube video strategy, (2) Long-form content planning, (3) Watch time optimization, (4) YouTube SEO, (5) Thumbnail design strategy, (6) Audience retention techniques, (7) YouTube monetization, (8) Connected TV optimization, (9) YouTube algorithm understanding. Provides: Video length optimization, thumbnail best practices, SEO strategies, retention techniques, monetization guidelines, and analytics interpretation.

UncategorizedID: josiahsiegel/claude-plugin-marketplace/viral-video-long-form

Install this agent skill to your local

pnpm dlx add-skill https://github.com/JosiahSiegel/claude-plugin-marketplace/tree/HEAD/plugins/viral-video-master/skills/viral-video-long-form

Skill Files

Browse the full folder contents for viral-video-long-form.

Download Skill

Loading file tree…

plugins/viral-video-master/skills/viral-video-long-form/SKILL.md

Skill Metadata

Name
viral-video-long-form
Description
Complete YouTube long-form video optimization for maximum watch time, SEO, and viral potential. PROACTIVELY activate for: (1) YouTube video strategy, (2) Long-form content planning, (3) Watch time optimization, (4) YouTube SEO, (5) Thumbnail design strategy, (6) Audience retention techniques, (7) YouTube monetization, (8) Connected TV optimization, (9) YouTube algorithm understanding. Provides: Video length optimization, thumbnail best practices, SEO strategies, retention techniques, monetization guidelines, and analytics interpretation.

CRITICAL GUIDELINES

Windows File Path Requirements

MANDATORY: Always Use Backslashes on Windows for File Paths

When using Edit or Write tools on Windows, you MUST use backslashes (\) in file paths, NOT forward slashes (/).


Long-Form Video Mastery (2025-2026)

Complete guide to creating viral long-form content primarily for YouTube, with strategies for watch time optimization, SEO, thumbnails, and audience building.

YouTube Long-Form Overview

Why Long-Form Matters in 2025

  • YouTube is the most-watched streaming service on TVs in US (surpassing Netflix)
  • 1 billion hours of video watched daily
  • Connected TV driving long-form growth
  • MrBeast reports stronger CTV performance
  • Long-form + Shorts combo = 41% faster channel growth

Optimal Video Lengths

| Duration | Performance | Best For | Notes | |----------|-------------|----------|-------| | 7-15 minutes | Sweet spot | Most content | Ideal for tutorials, reviews | | 8-9 minutes | Best for search | SEO-focused | Consistently performs best in rankings | | 8+ minutes | More ads | Monetization | Enables mid-roll placements | | 10-30 minutes | Effective range | In-depth topics | Documentary, education | | 40+ minutes | Extended content | Deep dives | Podcast, interviews |

Technical Specifications

| Specification | Recommended | |---------------|-------------| | Aspect ratio | 16:9 | | Resolution | 1920x1080 (1080p) or 3840x2160 (4K) | | Frame rate | 24, 30, or 60 fps | | File format | MP4 (H.264/H.265) | | Audio | AAC, 48kHz, stereo or higher |


YouTube Algorithm Deep Dive

Primary Algorithm Signals

| Signal | Weight | What It Measures | |--------|--------|------------------| | Watch time | Highest | Total minutes watched | | Audience retention | Very High | Percentage of video watched | | Click-through rate (CTR) | Very High | Clicks / Impressions | | Session time | High | Time viewer spends on YouTube after | | Engagement | Medium | Likes, comments, shares, saves |

How the Algorithm Works

Discovery Phase:

  1. Video shown to subscribers
  2. Performance measured against baseline
  3. Strong performance triggers broader distribution
  4. Weak performance limits reach

Recommendation Phase:

  • Videos are recommended based on viewer behavior patterns
  • Similar content to what viewer has watched
  • Topics viewer has shown interest in
  • Creator quality signals

Algorithm Optimization Strategies

Maximize Watch Time:

  • Front-load value (but tease more)
  • Eliminate dead time and filler
  • Use pattern interrupts every 30-60 seconds
  • Add chapters for navigation

Optimize CTR:

  • A/B test thumbnails (Test & Compare feature)
  • Use emotional faces (20-30% CTR boost)
  • Keep title text under 60 characters
  • Create curiosity without clickbait

Increase Session Time:

  • End screens with relevant videos
  • Playlist optimization
  • Create content series
  • Strategic card placements

The 5-10 Second Hook (Long-Form)

Long-Form Hook Differences

Unlike short-form's 1.3-second rule, long-form allows 5-10 seconds for hooks, but the principles remain:

Hook Components:

  1. Pattern Interrupt (0-2 seconds): Stop the scroll
  2. Promise (2-5 seconds): What viewer will get
  3. Proof/Preview (5-10 seconds): Why to trust you

Long-Form Hook Templates

Preview Hook: "In this video, I'm going to show you [result]. By the end, you'll know [specific outcome]."

Curiosity Hook: "What I'm about to share changed everything I thought I knew about [topic]..."

Result Hook: [Show the end result] "This is what we're building today, and I'll show you exactly how."

Story Hook: "Three months ago, I made a mistake that cost me [consequence]. Here's what I learned..."

Problem Hook: "If you've ever struggled with [problem], you're not alone. Here's what actually works."

Hook Mistakes to Avoid

  • "Hey guys, welcome back to my channel..."
  • Long intro animations
  • Asking for likes/subscribes before value
  • Generic greetings
  • Explaining what you won't cover

Thumbnail Mastery

Thumbnail Statistics

| Metric | Impact | |--------|--------| | Videos with custom thumbnails | 90% of top performers | | CTR with custom thumbnails | 60-70% higher | | CTR with emotional faces | 20-30% higher | | High contrast visibility | 20-30% increase |

Thumbnail Design Principles

Face and Emotion:

  • Faces with strong emotion perform best
  • Eye contact draws attention
  • Expressions should be genuine, not forced
  • Match emotion to content tone

Text Optimization:

  • Maximum 5 words
  • 30pt+ font for mobile readability
  • Sans-serif fonts work best
  • High contrast against background

Color Strategy: | Color | Psychology | Use For | |-------|------------|---------| | Red/Orange | Urgency, excitement | Action, entertainment | | Blue | Trust, calm | Educational, tech | | Yellow | Attention, optimism | Happy content, tips | | Green | Growth, money | Finance, health |

Composition:

  • Rule of thirds
  • Clean backgrounds
  • Single focal point
  • Negative space for text

YouTube Thumbnail Features (2025)

  • File size limit: Increased to 50MB
  • Test & Compare: Up to 3 thumbnail variants
  • A/B testing: Native platform feature
  • Preview: Always test at 320px width (mobile)

Thumbnail Testing Strategy

  1. Create 3 distinctly different thumbnails
  2. Use Test & Compare feature
  3. Run test for at least 7 days
  4. Measure by CTR improvement
  5. Apply learnings to future videos

SEO and Discovery

Video SEO Statistics

| Statistic | Value | |-----------|-------| | Google searches with video snippets | 25%+ | | Top-ranking videos average age | 29 months | | Top-ranking videos with captions | 94% | | View boost from Google ranking | 2-5x | | Best performing length in search | 8-9 minutes |

Title Optimization

Best Practices:

  • Primary keyword in first 60 characters
  • Keep under 60 characters total (visible in search)
  • Include year for time-sensitive content
  • Balance keywords with curiosity

Title Formula: [Keyword] + [Benefit/Result] + [Specificity]

Examples:

  • "Python Tutorial for Beginners - Learn Python in 1 Hour"
  • "How to Lose 10 Pounds in 30 Days (Science-Based Method)"
  • "iPhone 16 Review: 3 Months Later - Worth It?"

Description Optimization

Structure:

[Hook - First 2-3 lines visible without expansion]
Primary keyword in first 25 words
Clear value proposition

[Body - 150-250 words total]
Semantic keywords naturally included
Timestamps/chapters
Resource links

[Footer]
Social links
CTA
Related video links

Key Guidelines:

  • First 2-3 lines most important (visible in search)
  • Primary keyword in first 25 words
  • 150-250 words total for best SEO
  • Unique description for each video
  • Max 15 hashtags (only 3 displayed)

Tags and Keywords

Tag Strategy:

  • Primary keyword as first tag
  • Include variations and synonyms
  • Mix broad and specific
  • Don't exceed 500 characters total
  • Not as important as title/description but still useful

Keyword Research:

  • Use YouTube search autocomplete
  • Analyze competitor tags (TubeBuddy, VidIQ)
  • Google Trends for topic validation
  • Check search volume vs competition

Audience Retention Optimization

Retention Benchmarks

| Metric | Value | Impact | |--------|-------|--------| | 2025 average retention | 23.7% | Baseline | | Videos surpassing 50% | 16.8% | Above average | | Videos reaching final 10 seconds | 16% | Excellent | | 70%+ retention in first 30 seconds | Much higher ranking | Critical |

Retention Impact Formula

10% retention improvement = 25%+ impression increase

Retention Killers

Eliminate These:

  • Slow intros (33%+ drop in first 30 seconds)
  • "Hey guys, welcome back" openings
  • Long sponsor segments
  • Repetitive subscribe reminders
  • Product promotions that break flow
  • Off-topic tangents
  • Unnecessary filler content
  • AI narration (35% drop vs human voice)

Retention Boosters

Pattern Interrupts (Every 30-60 seconds):

  • Camera angle changes
  • B-roll footage
  • Graphics and animations
  • Audio energy changes
  • New information introduction

Structural Elements:

  • Video chapters for navigation
  • Preview upcoming content
  • Create mini-cliffhangers within video
  • Open and close story loops

Visual Variety:

  • Multiple shooting locations
  • Screen recordings/demonstrations
  • Lower thirds and text overlays
  • Transitions between segments

Chapter/Timestamp Strategy

Why Chapters Matter:

  • Improve user experience
  • Prevent abandonment
  • Enable quick navigation
  • Show up in Google search

Format:

0:00 Introduction
1:23 Chapter Title
4:56 Another Chapter
...

Best Practices:

  • First timestamp must be 0:00
  • At least 3 chapters minimum
  • Keep chapter titles descriptive
  • Natural break points in content

Watch Time Maximization

Why Watch Time is King

Watch time is the single most important metric for YouTube long-form success. It determines:

  • Search rankings
  • Recommended video placement
  • Channel authority
  • Monetization potential

Watch Time Strategies

Content Structure:

  1. Hook (0-10 seconds)
  2. Promise/Agenda (10-30 seconds)
  3. Value delivery (bulk of video)
  4. Pattern interrupts throughout
  5. Payoff/Summary (end)
  6. CTA and next video (final 30 seconds)

Pacing Guidelines:

  • Vary energy levels throughout
  • Build-up and payoff cycles
  • Strategic pauses for emphasis
  • No more than 2-3 minutes on single point

Series and Playlists:

  • Create content series
  • Build episode anticipation
  • Use playlists strategically
  • End with teaser for next video

Shorts + Long-Form Strategy

The Growth Multiplier

Shorts + Long-form = 41% faster channel growth

How to Use Shorts for Long-Form

Teaser Strategy:

  • Create Shorts from best moments
  • Tease upcoming long-form content
  • "Full video on my channel" CTA
  • Use Shorts to test topics

Audience Building:

  • Shorts identify resonant audiences
  • Algorithm recommends long-form to Shorts viewers
  • Build subscriber base with Shorts
  • Convert Shorts viewers to long-form watchers

Content Repurposing:

  • Extract 3-5 Shorts from each long-form
  • Highlight best hooks and moments
  • Create standalone value in Shorts
  • Cross-promote naturally

Monetization Optimization

Ad Placement Strategy

8+ Minute Requirement:

  • Videos over 8 minutes enable mid-roll ads
  • More ad placements = higher revenue potential
  • Don't sacrifice quality for length

Strategic Ad Placement:

  • Place ads at natural break points
  • Avoid ads during key content
  • Consider viewer experience
  • Test different placements

Revenue Diversification

| Revenue Stream | Description | |----------------|-------------| | AdSense | Display and video ads | | Sponsorships | Brand partnerships | | Memberships | Channel memberships | | Super Chat | Live stream donations | | Merchandise | YouTube merch shelf | | Affiliate | Product recommendations |


Connected TV Optimization

CTV Growth in 2025

  • YouTube is most-watched streaming service on TVs
  • Long-form performs exceptionally well on CTV
  • Different viewing behavior than mobile
  • Longer session times

CTV-Specific Strategies

Visual Considerations:

  • Higher production value expected
  • Larger text and graphics
  • Consider 4K resolution
  • Cinematic aspect ratios

Content Considerations:

  • Longer content performs well
  • Lean-back viewing experience
  • Series and episodic content
  • Documentary-style formats

Technical Optimization:

  • Upload in highest quality possible
  • Use appropriate chapters for TV navigation
  • Consider HDR for supported content
  • Optimize audio for speaker systems

Analytics and Metrics

Key Performance Indicators

| Metric | Target | Why It Matters | |--------|--------|----------------| | Average view duration | 50%+ of video | Watch time signal | | CTR | 4-10%+ | Thumbnail/title effectiveness | | Average % viewed | 40%+ | Retention quality | | Unique viewers | Growth trend | Audience expansion | | Subscribers from video | Positive | Content resonance |

Analytics Interpretation

High CTR, Low Retention:

  • Thumbnail/title overselling
  • Content not matching expectation
  • Hook not delivering promise

Low CTR, High Retention:

  • Great content, weak packaging
  • Thumbnail/title needs improvement
  • Hidden gem potential

High Retention, Low Views:

  • Distribution/SEO issue
  • Topic too niche
  • Promotion needed

Retention Graph Analysis

Common Patterns:

  • Cliff drop at start: Hook failing
  • Gradual decline: Normal, but optimize
  • Sharp drops: Identify and fix those moments
  • Spikes: People rewatching or chapter jumping
  • End retention: Indicator of content quality

Production Quality Guidelines

Equipment Recommendations

| Category | Budget | Mid-Range | Professional | |----------|--------|-----------|--------------| | Camera | Smartphone | Mirrorless | Cinema camera | | Audio | Lavalier mic | Shotgun mic | Multi-mic setup | | Lighting | Ring light | Softbox kit | Professional lights | | Background | Clean wall | Simple set | Full studio |

Audio Priority

Audio quality matters more than video quality.

Requirements:

  • Clear, crisp voice
  • Minimal background noise
  • Consistent levels
  • Room treatment if needed

Video Quality Standards

Minimum:

  • 1080p resolution
  • Stable footage (tripod/stabilization)
  • Good lighting on subject
  • Clean audio

Recommended:

  • 4K for future-proofing
  • Multiple camera angles
  • Professional color grading
  • B-roll footage

Quick Reference Checklist

Pre-Production

  • [ ] Keyword research completed
  • [ ] Script/outline prepared
  • [ ] Thumbnail concept ready
  • [ ] Equipment tested

Production

  • [ ] Audio quality verified
  • [ ] Lighting consistent
  • [ ] Multiple angles captured
  • [ ] B-roll footage recorded

Post-Production

  • [ ] Hook optimized (first 10 seconds)
  • [ ] Retention killers removed
  • [ ] Pattern interrupts added
  • [ ] Chapters/timestamps created
  • [ ] End screen added
  • [ ] Closed captions uploaded

Publishing

  • [ ] Title optimized (60 characters, keyword-rich)
  • [ ] Description optimized (150-250 words)
  • [ ] Tags added (primary keyword first)
  • [ ] Thumbnail uploaded and tested
  • [ ] Category and language set
  • [ ] Cards added at strategic points
  • [ ] Playlist assignment