Social formats

Skill Gekkos-tech/agency-os/plugins/ad-creative/skills/social-formats

The complete Claude Code toolkit for web & advertising design agencies — 6 plugin bundles for the full agency workflow

Install

npx -y skills add Gekkos-tech/agency-os --skill social-formats

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Authoritative ad and content format specifications for Meta/Facebook, Instagram, TikTok, LinkedIn, and YouTube, plus a workflow for adapting one master creative into every placement a media plan requires. Use when the user wants to adapt for social, resize for all platforms, or asks about social media formats, Instagram format, TikTok ad specs, LinkedIn or YouTube ad dimensions, safe zones, aspect ratios, file size or video length limits, or says "export the campaign assets" or "Formate anpassen". This skill covers FORMATS and ADAPTATION (dimensions, crops, safe zones, export naming) — not ideation (see ad-concepts) and not copywriting (see ad-copy).

The file declares its own license as MIT (c) GEKKOS Tech. That is the author’s claim about this one file, and it is not the same thing as the license GitHub reports for the repository, which is listed with the other numbers below.

SKILL.md

5.4 KB, ~1.2k tokens by cl100k_base, as published. Nobody here has run it

Social Formats — Spec Reference & Adaptation Workflow

Turn ONE master creative into every format the media plan needs, without UI overlap, bad crops, or spec rejections. Specs verified July 2026 — always spot-check platform docs before final export.

Reference files (verified spec tables)

File	Covers
`references/meta-instagram.md`	Facebook Feed, Stories, Reels, Right Column, Marketplace, Carousel; Instagram Feed, Stories, Reels, Explore, Carousel
`references/tiktok.md`	In-Feed, TopView, Spark Ads, image/carousel
`references/linkedin.md`	Single image, video, carousel, document ads, text ads, Stories status
`references/youtube.md`	Shorts, skippable/non-skippable in-stream, bumper, thumbnails, banner

Load only the reference file(s) for the platforms actually in the media plan.

Adaptation workflow

Step 1 — Establish the master creative

Start from ONE master in the richest format you will need:

Video-led campaign → master at 9:16, 1080x1920 (covers Stories, Reels, TikTok, Shorts natively; center-crop to 4:5 / 1:1 / 16:9).
Static/feed-led campaign → master at 4:5, 1080x1350 (crops cleanly to 1:1; extend background to reach 9:16 — never stretch).

Master rules: build at final pixel size or larger (never upscale), keep the subject and core message inside a center 1:1 zone so every derived crop keeps the story, keep logo/CTA on separate layers so they can be repositioned per placement.

Step 2 — Derive the format matrix from the media plan

For each platform+placement in the media plan, read the matching reference file and list: ratio, px, max file size, max duration, safe zone. The output is a checklist table — one row per required export. Do not export formats the plan doesn't buy.

Minimum typical matrix from one master pair (4:5 + 9:16):

Ratio	Px	Serves
9:16	1080x1920	FB/IG Stories & Reels, TikTok, YouTube Shorts
4:5	1080x1350	FB/IG Feed
1:1	1080x1080	Carousels, Marketplace, Right Column, LinkedIn
16:9	1920x1080	YouTube in-stream, LinkedIn video

Step 3 — Apply safe-zone rules per placement

Safe zones are where platform UI (username, captions, CTA buttons, nav) overlays the creative. Exact pixel values are in each reference file. Universal rules:

Nothing critical in the top ~14% or bottom ~20–35% of any 9:16 asset.
On TikTok, additionally keep the right edge clear (like/comment/share rail).
Subtitles sit in the vertical center band, never in the bottom caption zone.
Logos: top-center or center — never bottom corners on vertical formats.
Design the 9:16 knowing IG grid previews crop to 3:4 — keep faces/claims inside.

Step 4 — Apply text-density rules per platform

Meta/IG: the 20% text rule is retired but text-heavy stills still underperform; headline on-image ≤ 7 words; design sound-off (captions burned in, safe-zone aware).
TikTok: native look wins — minimal overlay text, hook in first 2 s, caption ≤ 100 chars (only ~40–50 show before "See more").
LinkedIn: more copy tolerated; intro text ≤ 150 chars before truncation, headline ≤ 70 chars; keep on-image text legible at feed size.
YouTube: thumbnails ≤ 3–4 words; in-stream must communicate brand + message in the first 5 s (skip button appears at 5 s on skippable).

Step 5 — Export with the naming convention

{campaign}-{platform}-{placement}-{WxH}.{ext}

Examples: spring26-meta-reels-1080x1920.mp4, spring26-linkedin-carousel-1080x1080-card03.jpg, spring26-youtube-bumper-1920x1080.mp4. Lowercase, hyphens only, no spaces or umlauts; append -cardNN for carousel cards and -vNN for variants.

Step 6 — Pre-handoff checklist

Every media-plan placement has exactly one matching export (no orphans, no gaps)
Each file is at or under the platform max file size; videos within duration limits
Safe zones verified against the reference tables (overlay a safe-zone template)
No upscaled/soft assets; video is H.264 MP4 unless the spec says otherwise
Captions/subtitles burned in and positioned inside the safe band
Naming convention applied consistently; carousel card order encoded in filename
Spot-checked at least one spec per platform against current official docs
Thumbnails/poster frames set for every video placement that supports them

Boundaries

ad-concepts owns ideation (what the creative says/shows).
ad-copy owns copywriting (headlines, primary text, CTAs as language).
social-formats (this skill) owns dimensions, crops, safe zones, limits, export naming, and the adaptation pipeline from master to placement-ready assets.

Gives 0 of the 12 instructions most social media skills give in ~1.2k tokens

Counted across 489 of the 492 authors here whose files we hold, read 2026-08-06

build content around three to five pillarsin 24 of 489, across 12 files
read product marketing context before asking questionsin 23 of 489, across 13 files
respond to all comments on your postsin 21 of 489, across 9 files
adapt tone and structure per platformin 18 of 489, across 8 files
adapt content for each platformin 15 of 489, across 10 files
use the output flag to specify an output directoryin 14 of 489, across 4 files
Generate output logo images with white backgroundin 13 of 489, across 4 files
Fix failing generation scripts directlyin 13 of 489, across 4 files
ask user about html preview after logo generationin 12 of 489, across 3 files
run the download script with a URLin 12 of 489, across 3 files
implement exponential backoff for 429 responsesin 12 of 489, across 3 files
include a single clear call to actionin 12 of 489, across 9 files

Said here and by no other author read

load only reference files for planned platforms
start from one master creative in the richest format
build at final pixel size or larger
keep subject and core message inside center zone
keep logo and CTA on separate layers
derive the format matrix from the media plan

Grouped from the skills themselves: near-identical wordings counted once, and counted by distinct author, so one author publishing three of these counts once. Length counted with cl100k_base; the agent that loads this file may tokenize it differently.