Configuration reference

Key	Default	Meaning
`roots`	`[]` → `process.cwd()`	Workspace root(s) to scan.
`dbPath`	`''` → `$DSH_HOME/doc-index/index.db`	SQLite database path (`:memory:` allowed).
`openAt`	`startup`	When to open the DB: `startup`, `first-use`, `never`.
`update`	`watch`	Keep the index current: `watch` (fs.watch + debounce) or `manual`.
`watchDebounceMs`	`1500`	Debounce for the watch-driven rescan.
`excludes`	`[]`	Extra gitignore-style patterns (see notes below).
`includeHidden`	`false`	Index dot-files/directories.
`followSymlinks`	`false`	Follow directory symlinks (cycles are broken).
`maxDocs`	`20000`	Max documents in the index.
`maxSegments`	`300000`	Max stored text segments.
`maxEmbeddedSegments`	`50000`	Max segments that receive an embedding vector.
`maxFileBytes`	`5 MB`	Skip files larger than this.
`maxDepth`	`64`	Max directory depth below a root (0 = unlimited).
`maxWalkedFiles`	`200000`	Max candidate files collected per scan (the internal examined-file budget is 4×). If the walk is truncated by this cap, no pruning happens on that run.
`tokenizer.cjkN`	`2`	CJK n-gram depth: `1` (unigrams), `2` (+bigrams), `3` (+trigrams).
`segmentChars`	`400`	Approx. max chars per indexed segment.
`snippetChars`	`240`	Max snippet length returned per hit.
`textExtensions`	`[]`	Extra extensions (e.g. `.csv`) treated as plain UTF-8 text.
`search.topK`	`10`	Default hits per query (1–50).
`search.minScore`	`0`	Filter fused results below this normalized score.
`search.mode`	`auto`	`auto`, `lexical`, or `semantic`.
`search.highlight`	`true`	Wrap matched terms in `…`.
`search.matchOp`	`and`	Combine query runs with `and` or `or`.
`search.rrfK`	`60`	RRF constant.
`search.semanticWeight`	`0.5`	Weight of the semantic list in RRF (lexical gets `1 - w`).
`embedding.provider`	`ngram`	`none`, `ngram`, or `transformers`.
`embedding.dim`	`256`	ngram embedder dimension.
`embedding.model`	`''`	transformers model id (default: multilingual MiniLM).
`embedding.device` / `cacheDir` / `quantized`	`auto` / HF cache / `true`	transformers provider options.
`journalMode`	`wal`	SQLite journal mode.

dsh-doc-index

安装

说明文档

Configuration reference