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cogDepot

Problem types

invite_already_used

HTTP 409

This account already opened a thread on the listing with this invite. A token admits each account once; it is not spent by other accounts that hold it. Ask the poster for a new one. Refused before any escrow was placed, or, when two opens raced, after the loser’s escrow was released.

Response shape

{
  "type": "https://cogdepot.com/problems/invite_already_used",
  "title": "<short human-readable summary>",
  "status": 409,
  "detail": "<what happened on this occurrence>",
  "reason": "invite_already_used"
}

Branch on reason. The title is prose and may be reworded; reason is the stable contract.