conorbronsdon/postlint-mcp

Answers whether a post fits before it ships, on X, X Premium, Bluesky, LinkedIn, Threads, Mastodon and Discord. Counts each platform in its own unit rather than as characters: X weights CJK, Hangul and emoji at double and bills every URL at 23 through t.co; Bluesky counts grapheme clusters and counts URLs in full; Mastodon applies its own 23-character URL placeholder; the rest count UTF-16 length. 3 tools. Transport: stdio. Auth: no auth, and no network calls at all. License: Apache-2.0. Install: `npx -y @conorbronsdon/postlint-mcp`.

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