social-formats

social-formats is a skill for Claude Code from Gekkos-tech/agency-os. It costs 149 tokens per session (1,405 once invoked), scanned A, original, MIT.

A reference guide and workflow for the required sizes and rules of ads and content on Facebook, Instagram, TikTok, LinkedIn, and YouTube.

In plain words
What is it for?
Use it to check platform specifications and adapt one master image or video into the placements required by a media plan.
Why use it?
It helps avoid bad crops, important content hidden by platform controls, and exports rejected for breaking format requirements.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the ad-creative plugin — 8 skills, 2 commands shipped together

Good fit Use it to check platform specifications and adapt one master image or video into the placements required by a media plan.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/gekkos-tech/agency-os/social-formats
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add Gekkos-tech/agency-os --skill social-formats
Clone the repo
git clone --depth 1 https://github.com/Gekkos-tech/agency-os

Made for: Claude Code.

Or install ad-creative, the plugin that ships this one along with the rest of its 8 skills, 2 commands.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for social-formats

README.md
[![agentmods](https://agentmods.dev/badge/skills/gekkos-tech/agency-os/social-formats/github.svg)](https://agentmods.dev/skills/gekkos-tech/agency-os/social-formats)
Your own site
<a href="https://agentmods.dev/skills/gekkos-tech/agency-os/social-formats"><img src="https://agentmods.dev/badge/skills/gekkos-tech/agency-os/social-formats/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for social-formats

Your own site · 80×15
<a href="https://agentmods.dev/skills/gekkos-tech/agency-os/social-formats"><img src="https://agentmods.dev/badge/skills/gekkos-tech/agency-os/social-formats.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 149 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,405 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00149 $0.01405
Opus 5 $0.00075 $0.00702
Sonnet 5 $0.00030 $0.00281
Haiku 4.5 $0.00015 $0.00140

Measured 12d ago against content hash 976bae9f3706, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

social-formats scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/ad-creative/skills/social-formats/SKILL.md · 103 lines

How it starts

The opening of the file, as written. The whole thing — 103 lines — stays where its author put it; the contents beside it link to each section on GitHub.

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

Read the full file on GitHub · 103 lines

Files

What ships with it

4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago First seen · 103 lines · 149 tokens per session scan A 976bae9f3706

Subscribe to this mod's changes

social-formats is a skill published in the GitHub repository Gekkos-tech/agency-os (5 stars, last pushed 2mo ago), licensed MIT. It adds 149 tokens to every session and 1,405 once invoked, about $0.0007 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Related

Other skills, from other repositories

elevenlabs

Convert documents and text to audio using ElevenLabs text-to-speech. Use this skill when the user wants to create a podcast, narrate a document, read aloud text, generate audio from a file, or convert text to speech.

sanjay3290/ai-skills · 51 tokens

google-tts

Convert documents and text to audio using Google Cloud Text-to-Speech. Use this skill when the user wants to: narrate a document, read aloud text, generate audio from a file, convert text to speech, create a recording of documentation or analysis, create a podcast from a document, or use Google TTS/text-to-speech.…

sanjay3290/ai-skills · 131 tokens

imagen

Generate images using Google Gemini's image generation capabilities. Use this skill when the user needs to create, generate, or produce images for any purpose including UI mockups, icons, illustrations, diagrams, concept art, placeholder images, or visual representations.

sanjay3290/ai-skills · 52 tokens

seedance-2-5-reference-to-video

Generate reference-guided 1080p video with ByteDance Seedance 2.5 Reference to Video on RunComfy via the runcomfy CLI. Feed up to 9 reference images, 1-3 reference video clips, and 3 reference audio files into one call and get a 4-30 second 1080p clip with native synchronized audio, identity and style locked to your…

aiskillstore/marketplace · 274 tokens

wan-3-0-prime-reference-to-video

Build video clips from reference images, reference videos, and reference audio with Wan-AI Wan 3.0 Prime Reference to Video on RunComfy. Up to 10 reference images, 5 reference videos and 5 reference audio clips are bound to a prompt that names them as "Image 1", "Video 1", "Audio 1", giving character, product and…

aiskillstore/marketplace · 266 tokens

character-design-sheet

Character consistency across AI-generated images with reference sheets and LoRA techniques. Covers turnaround views, expression sheets, color palettes, and style consistency tricks. Use for: character design, game art, illustration, animation, comics, visual novels. Triggers: character design, character sheet…

aiskillstore/marketplace · 92 tokens