How do I install the Platform Specs skill?

Run npx skillmds@latest add googlecloudplatform/platform-specs in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Platform Specs safe to use?

This skill has not completed SkillMD's automated safety review yet. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Platform Specs?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Platform Specs free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Platform Specs?

GoogleCloudPlatform (@googlecloudplatform) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Platform Specs by googlecloudplatform

Name: Platform Specs
Author: GoogleCloudPlatform

Platform Specs

Ad platform specifications and best practices. Covers Google Ads, YouTube, Instagram, TikTok, and Meta ad formats, dimensions, character limits, and optimization tips. Load this skill when creating platform-specific content or recommending campaign settings.

File contents

Platform Specs Skill

Google Ads — Responsive Search Ads (RSA)

Format

{"headlines": ["H1", "H2", "H3"], "descriptions": ["D1", "D2", "D3"]}

Limits

Headlines: 3-15 headlines, max 30 chars each
Descriptions: 2-4 descriptions, max 90 chars each
Display URL paths: 2 paths, max 15 chars each

Best Practices

Pin H1 to position 1 (brand/primary message)
Use keyword insertion where appropriate
Include at least 1 CTA ("Shop Now", "Learn More", "Get Started")
Avoid excessive capitalization or punctuation

Google Ads — Display Ads

Image Sizes

Landscape: 1200x628 (recommended), 1200x900
Square: 1200x1200
Portrait: 900x1200 (mobile)

Rules

Text overlay: max 20% of image area
Logo: clearly visible, undistorted
High-quality imagery (no blurry/pixelated)
File size: max 5MB, PNG or JPG

YouTube — Video Ads

Formats

Bumper ad: 6 seconds (non-skippable)
In-stream: 15-30 seconds (skippable after 5s)
Shorts: 15-60 seconds (vertical 9:16)

YouTube Best Practices

Hook in first 5 seconds (before skip button)
Brand within first 5 seconds
Clear CTA in final 3 seconds
Audio essential (but design for sound-off too)

Instagram / Meta

Image Ad Sizes

Feed: 1080x1080 (square) or 1080x1350 (portrait)
Stories/Reels: 1080x1920 (9:16)

Text Limits

Primary text: 125 chars (visible without "more")
Headline: 40 chars
Description: 30 chars

TikTok

Video Specs

Aspect ratio: 9:16 (vertical mandatory)
Duration: 15-60 seconds (sweet spot: 21-34s)
Resolution: 1080x1920 minimum

TikTok Best Practices

Native feel (not overly polished)
Sound-on design
Hook in first 1-2 seconds
Trending audio when possible

Campaign Settings Recommendations

Budget Allocation (by objective)

Awareness: 60% video, 30% display, 10% search
Consideration: 40% video, 30% search, 30% display
Conversion: 50% search, 30% display, 20% video

Bidding Strategy

New campaigns: Start with maximize clicks, shift to target CPA after 50+ conversions
Brand awareness: target CPM
App installs: target CPI

Read references/platform-dimensions.md for the complete dimensions reference.

---name: platform-specsdescription: Ad platform specifications and best practices. Covers Google Ads, YouTube, Instagram, TikTok, and Meta ad formats, dimensions, character limits, and optimization tips. Load this skill when creating platform-specific content or recommending campaign settings.---# Platform Specs Skill## Google Ads — Responsive Search Ads (RSA)### Format```json{"headlines": ["H1", "H2", "H3"], "descriptions": ["D1", "D2", "D3"]}```### Limits- Headlines: 3-15 headlines, **max 30 chars each**- Descriptions: 2-4 descriptions, **max 90 chars each**- Display URL paths: 2 paths, max 15 chars each### Best Practices- Pin H1 to position 1 (brand/primary message)- Use keyword insertion where appropriate- Include at least 1 CTA ("Shop Now", "Learn More", "Get Started")- Avoid excessive capitalization or punctuation## Google Ads — Display Ads### Image Sizes- Landscape: 1200x628 (recommended), 1200x900- Square: 1200x1200- Portrait: 900x1200 (mobile)### Rules- Text overlay: max 20% of image area- Logo: clearly visible, undistorted- High-quality imagery (no blurry/pixelated)- File size: max 5MB, PNG or JPG## YouTube — Video Ads### Formats- Bumper ad: 6 seconds (non-skippable)- In-stream: 15-30 seconds (skippable after 5s)- Shorts: 15-60 seconds (vertical 9:16)### YouTube Best Practices- Hook in first 5 seconds (before skip button)- Brand within first 5 seconds- Clear CTA in final 3 seconds- Audio essential (but design for sound-off too)## Instagram / Meta### Image Ad Sizes- Feed: 1080x1080 (square) or 1080x1350 (portrait)- Stories/Reels: 1080x1920 (9:16)### Text Limits- Primary text: 125 chars (visible without "more")- Headline: 40 chars- Description: 30 chars## TikTok### Video Specs- Aspect ratio: 9:16 (vertical mandatory)- Duration: 15-60 seconds (sweet spot: 21-34s)- Resolution: 1080x1920 minimum### TikTok Best Practices- Native feel (not overly polished)- Sound-on design- Hook in first 1-2 seconds- Trending audio when possible## Campaign Settings Recommendations### Budget Allocation (by objective)- Awareness: 60% video, 30% display, 10% search- Consideration: 40% video, 30% search, 30% display- Conversion: 50% search, 30% display, 20% video### Bidding Strategy- New campaigns: Start with maximize clicks, shift to target CPA after 50+ conversions- Brand awareness: target CPM- App installs: target CPIRead `references/platform-dimensions.md` for the complete dimensions reference.

Frequently asked questions