Preflightpay-per-audit continuity checking · by canonkeeper

Does book six agree with book one?

Preflight reads your whole series, builds a series bible (every fact about every character, each with the exact sentence it came from), and shows you each contradiction with both passages and a fix aimed at the latest book. For authors of long-running series, their editors and small presses. You see the price before anything runs, and you pay with PayPal.

See a finished audit
contradiction John Watson's war wound: the shoulder in book 1, the leg in book 2 A Study in Scarlet · Mr. Sherlock HolmesThere I was struck on the shoulder by a Jezail bullet, which shattered the bone and grazed the subclavian artery. The Sign of the Four · The Science of DeductionI made no remark, however, but sat nursing my wounded leg. Fix, to the later book: “my wounded leg” → “my wounded arm”
What you get, from the finished Sherlock Holmes audit: the two passages that disagree and a fix to the later book. The whole report.

The demo series is The Saltmarsh Chronicles, three invented books with five planted continuity errors and one change only the author can judge. The finished audit is the six Sherlock Holmes volumes: 3,963 sourced facts and the canon's two famous slips, Watson's wound and Mrs. Hudson/Turner; explore its series bible.

  1. Uploadyour books, in reading order
  2. Quote$5 + $4 per 100,000 tokens (about 73,000 words), arithmetic shown: a 100,000-word novel is about $10.50
  3. Pay with PayPalnothing runs until the payment is captured; a failed audit is refunded
  4. Reportevery contradiction, both passages, a fix to the later book

Working with an AI assistant? It can buy audits for you over MCP, inside a budget you fund and approve with PayPal: how to connect it.

Public-domain books only on this site. It runs on a free AI tier whose terms let Google use uploaded text to improve its products, so do not upload an unpublished manuscript here. To keep a manuscript private, run Preflight on your own computer with a local model: the text never leaves it (how, in four steps).

Nothing is sent to a model until you pay. Files are kept on this server only for the audit, and the job page has a button that deletes them along with everything derived from them.