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Documentation Index

Fetch the complete documentation index at: https://docs.letmepost.dev/llms.txt

Use this file to discover all available pages before exploring further.

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What it checks

media.length <= 20. Threads is the most permissive carousel of the platforms supported here — 20 children, mixed images and videos. The minimum carousel size is 2; below that, single-image or single-video shapes apply (see threads.text.required for the post-shape decision tree).

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Failure response

{
  "error": {
    "code": "preflight_failed",
    "rule": "threads.media.count_max",
    "platform": "threads",
    "message": "Attached 25 media items; Threads allows at most 20 per carousel.",
    "remediation": "Reduce to 20 items or fewer, or split into multiple posts."
  }
}

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Remediation

Cap at 20. For longer galleries, split into a thread — Threads’s reply UX is solid, and each reply can hold 20 more.