Platforms

Thirteen platforms. Thirteen rulebooks.

Each platform gets its own limits, tone and required fields. These are the exact rules the writer is given and the checker enforces.

X (Twitter)

X
280 weighted 0–2 hashtags

Tone. punchy, confident, contrarian hook in the first line

Format. one standalone post; no preamble; at most 1 emoji

LinkedIn

LINKEDIN
3,000 chars 3–5 hashtags

Tone. professional but human; story -> insight -> lesson

Format. first line is a hook under 200 chars; short paragraphs separated by blank lines; end with a question to drive comments; hashtags at the end

Instagram

INSTAGRAM
2,200 chars 3–5 hashtags needs media

Tone. warm, visual, emoji-friendly

Format. hook line first, value in short lines, clear CTA (save/share)

Facebook

FACEBOOK
63,206 chars 0–3 hashtags

Tone. conversational, community-oriented

Format. short post ending in a question

Threads

THREADS
500 chars 0–1 hashtags

Tone. casual, opinionated, conversational

Format. one short post, no corporate voice

Bluesky

BLUESKY
300 graphemes 0–2 hashtags

Tone. casual, thoughtful, slightly nerdy

Format. one short post

TikTok

TIKTOK
4,000 chars 3–5 hashtags needs media script

Tone. energetic, Gen-Z friendly, direct

Format. caption in body; put a 30-45 second spoken video script in extra.script with a 2-second hook

YouTube Shorts

YOUTUBE
5,000 chars 3–5 hashtags title ≤ 100 needs media script

Tone. curiosity-driven, searchable

Format. SEO title (keyword first); description with a summary and CTA; put a 45-60 second script in extra.script

Pinterest

PINTEREST
500 chars 0–3 hashtags title ≤ 100 needs media

Tone. inspirational, keyword-rich, evergreen

Format. descriptive, search-friendly description

Reddit

REDDIT
40,000 chars no hashtags title ≤ 300 subreddit

Tone. genuine community member sharing value; zero marketing voice; no emojis; no calls to follow or buy

Format. descriptive title; body with context, the useful details, and an open question; suggest a fitting subreddit in extra.subreddit (no r/ prefix)

Never says. link in bio, follow me, check out my, game-changer

Telegram

TELEGRAM
4,096 chars 0–3 hashtags

Tone. newsletter-style, informative

Format. bold-free plain text with short sections and bullet points

Snapchat

SNAPCHAT
160 chars 0–3 hashtags needs media

Tone. very casual, playful

Format. one-liner caption for a vertical video

Google Business Profile

GOOGLE_BUSINESS
1,500 chars no hashtags cta_type

Tone. local, helpful, trustworthy

Format. update or offer post; set extra.cta_type to one of BOOK, ORDER, SHOP, LEARN_MORE, SIGN_UP, CALL

Platforms change their limits often; these values are re-checked before each release.