Search Notes
vault_searchFind Obsidian notes using hybrid keyword and semantic search, with optional filters to narrow by folder, tags, type, and dates.
Instructions
Hybrid search across all vault notes, ranked by combined keyword and semantic relevance using Reciprocal Rank Fusion (RRF) — combining FTS5 keyword matching with vector similarity. Results are refined by a cross-encoder reranker using position-aware score blending when available. Semantic matching finds notes even when exact keywords differ — "career aspirations" finds notes about "goals" and "targets". Falls back to keyword-only (FTS5 BM25) transparently while embeddings are being built. Combine a text query with structured filters to narrow results by metadata — the "narrow by metadata, search by text" pattern. Unquoted terms use implicit AND with porter stemming; wrap in double quotes for exact phrases; punctuated terms (vault-cortex, deploy/local) are matched as exact adjacent-word phrases automatically.
Filters — all conditions AND-combine with each other and the text query:
folder: path prefix (e.g. "Projects")
tags: require all listed tags (AND)
type: exact match on frontmatter type (e.g. "person", "session-log")
related: require all listed related links (AND)
properties: arbitrary frontmatter key-value pairs, supports string/number/boolean (e.g. { status: "active" })
created: date bounds { before, on, after } in YYYY-MM-DD on the frontmatter created property — before/after are exclusive, on is exact (calendar-day match, server-local). Notes without a parseable created property never match
modified: date bounds { before, on, after } in YYYY-MM-DD on filesystem modified time (server-local day boundaries) — before/after match strictly earlier/later days, on matches within the day
Example: vault_search({ query: "kubernetes networking", filters: { tags: ["reference"] } }) Example: vault_search({ query: "meeting notes", filters: { type: "meeting", folder: "Work" } }) Example: vault_search({ query: "decision", filters: { modified: { after: "2026-06-30" } } }) — matching notes touched in July or later Example: vault_search({ query: "how the server watches for file changes" }) — semantic: finds notes about chokidar and file watchers even without those exact terms
When to use: The primary discovery tool for content-based queries, optionally constrained by metadata. Semantic matching bridges vocabulary gaps — try natural-language queries, not just keywords. Prefer vault_search_by_tag for tag-only queries without text. Prefer vault_search_by_folder for browsing a folder. Prefer vault_search_by_property for metadata-only queries. Prefer vault_recent_notes for time-based browsing.
Errors:
No matches returns { results: [], total: 0 }, not an error
Malformed query syntax is sanitized automatically — the tool never throws a query syntax error
A malformed or calendar-invalid created/modified date filter throws with remediation text ("Use YYYY-MM-DD")
Returns: JSON with results array (path, title, snippet, score, tags, folder, type, kind, extension, created, modified, bytes), total count, search_mode ("hybrid" or "fts"), and reranked (boolean — true when cross-encoder reranking refined the ordering). search_mode indicates which ranking was used — "hybrid" when vector embeddings contributed, "fts" when only keyword matching was available. score reflects combined relevance (higher = more relevant). kind is "note" for markdown notes or "file" for non-markdown content (canvas, PDF, and text files — .txt, .csv, .json, .xml, .svg, .log, .yaml, .yml, .base); file results also carry extension (e.g. ".canvas", ".pdf", ".txt"). created is omitted when null. bytes is the on-disk file size. With filters.include_leading_callout, each result also carries leading_callout ({ type, title, body }) when present.
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| query | Yes | Search query text — unquoted terms use implicit AND with stemming; wrap in double quotes for exact phrases | |
| filters | No | Optional structured filters — all conditions AND-combine with each other and with the text query |