content swap guard

the content-swap guard stops one document slot from being reused for many unrelated drafts. normal edits stay free.

updated may 3, 2026 billing no images
quick answer

use this when an update is counted as a new document.

use this for

  • api document updates
  • heavy paste-over behavior
  • quota support questions

steps

  1. start with a saved document.
  2. edit normally without worrying about the guard.
  3. if replacing the whole body, consider creating a new document.
  4. watch for `_quota_charged` in api responses.

details to know

  • the api uses word retention and trigram overlap to detect a genuine new draft.
  • short texts under the threshold are not treated the same way.
  • the web app also warns users when a save looks like a new draft over quota.

limits and edge cases

  • the guard should not punish normal drafting, restructuring, or rephrasing.
  • do not tell users that every paste consumes quota. that is not true.
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