Files
cobble/src/functions/backend/db/knowledgebases/locate-passage.ts
T
tbenandClaude Opus 5.5 e7b23b7454 Add knowledgebases
Knowledgebases give bots RAG over documents, scoped like extensions: to
particular bots, to a workspace, or to every bot, with their own button
beside Tools in the composer. Documents are chunked and embedded by the
file-ingest worker with the install's embedding model, which is now an
install-wide setting rather than a per-bot one.

- Word search runs on an FTS5 index ranked by BM25, with a scored LIKE
  fallback for scripts written without spaces.
- Changing the embedding model re-indexes documents automatically.
- Ingest jobs wait without spending attempts while every embedding model
  rests, fail at once on errors retrying can't fix, and keep passages
  searchable by words when the model refuses.
- Settings > Knowledgebases shows each knowledgebase's and document's
  index state: spinner, warning, grey check (words only) or green check.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-26 16:41:01 +01:00

32 lines
867 B
TypeScript

type Params = {
/**
* The document's whole text.
*/
text: string;
/**
* One of its passages, which may start with a heading carried over and
* a stretch repeated from the passage before.
*/
passage: string;
};
/**
* Where a passage sits in its document, roughly: found by its last line
* (the part least likely to be a carried heading or an overlap), counted
* back by where that line sits in the passage. 0 when it can't be found.
*/
export default function locatePassage({ text, passage }: Params) {
const lines = passage.split("\n").map((line) => line.trim()).filter(Boolean);
for (let i = lines.length - 1; i >= 0; i--) {
const line = lines[i]!;
const at = text.indexOf(line);
if (at < 0) continue;
return Math.max(0, at - passage.lastIndexOf(line));
}
return 0;
}