Complete character limits, format requirements, and best practices for each ad platform. Google selects up to 3 headlines and 2 descriptions to show Headlines a
Platform Specs provides detailed character limits, format requirements, and best practices for ad creative elements across major advertising platforms including Google Ads, Meta (Facebook and Instagram), LinkedIn, TikTok, and Twitter. It outlines how many headlines, descriptions, and other text components can be used, their exact length constraints, and how these elements are combined or displayed in ads. The skill also covers strategic recommendations such as headline pinning in Google Ads and crafting effective text mixes for better machine learning optimization.
This skill is designed for performance marketers managing campaigns across multiple ad networks who need precision in ad copy formats to avoid truncation or disapproval. Growth leads coordinating cross-channel creative development will find it essential for aligning messaging with platform-specific guidelines. PPC operators and agency strategists responsible for optimizing ad creative for CTR and conversion rates will use this to streamline copywriting and QA processes before launch.
Practitioners start by referencing platform-specific character limits and element counts to draft compliant headlines, descriptions, and display URLs. Next, they apply recommended mixes—such as keyword-focused, benefit-driven, social proof, and CTA headlines—to maximize relevance and engagement. For Google Ads, they carefully decide which headlines to pin to maintain brand consistency without sacrificing machine learning flexibility. Finally, creative is reviewed across platforms to ensure adherence to truncation rules, formatting nuances, and placement-specific guidelines like TikTok’s vertical video text overlays or LinkedIn’s professional tone.
How many headlines should I write for Google Ads? Aim for 15 headlines with a balanced mix of keyword, benefit, social proof, CTA, differentiators, and brand name variations. Can I pin all my best headlines in Google Ads? No, pinning reduces Google’s optimization ability; pin sparingly, typically just your brand name or a key CTA. What’s the ideal primary text length on Meta Ads? Keep primary text front-loaded under 125 characters to avoid truncation, especially for Stories and Reels placements.
Attach the Platform Specs skill to any Metaflow agent tasked with ad copy creation or review to ensure all creative elements meet platform requirements before publishing. The agent will guide you through inputting headlines, descriptions, and URLs that conform to character limits and format rules specific to each platform. Expect improved creative compliance and fewer rejected ads with this skill active, helping streamline multi-platform campaign execution and optimization.
For broader context, see our roundup of claude skills marketing, and read Claude skills for Google Ads for related setup guidance.