TextSearchSnapshot

KIT · interface · Type contract

Serialized index; the revision pair proves the snapshot matches the current configuration.

Import

TypeScript

import type { TextSearchSnapshot } from '@jangts/agent-core/kits/search';

JavaScript

/** @typedef {import('@jangts/agent-core/kits/search').TextSearchSnapshot} TextSearchSnapshot */

Other public entry points:@jangts/agent-core/types, @jangts/agent-core/kits, @jangts/agent-core/kits/search.

Definition

interface TextSearchSnapshot

Field structure

Field	Type	Required	Description
version	2	Required	Read-only. Snapshot format version; other versions are not loaded.
engine	"minisearch-7"	Required	Read-only. Engine that produced the snapshot; a different engine cannot restore it.
configurationFingerprint	string	Required	Read-only. Fingerprint of the field and tokenizer configuration that built the index.
serializedIndex	string	Required	Read-only. Serialized MiniSearch index.

Examples

• TextSearch: App-side full-text index: Build a local index over declared fields; every query must supply an application filter.

First index two interface documents

Beginner · Node.js

TypeScript

import { TextSearch } from '@jangts/agent-core/kits/search';
type Document = { id: string; title: string; body: string };
const index = new TextSearch<Document>({ indexRevision: 'manual-v1', fields: ['title', 'body'], storedFields: ['title'] });
index.upsert({ id: 'workflow', title: 'Workflow', body: 'Define reusable agent nodes.' });
index.upsert({ id: 'model', title: 'Model', body: 'Bind a model provider.' });
console.log(index.search({ query: 'agent', limit: 5, filter: () => true }));

JavaScript

import { TextSearch } from '@jangts/agent-core/kits/search';
const index = new TextSearch({ indexRevision: 'manual-v1', fields: ['title', 'body'], storedFields: ['title'] });
index.upsert({ id: 'workflow', title: 'Workflow', body: 'Define reusable agent nodes.' });
index.upsert({ id: 'model', title: 'Model', body: 'Bind a model provider.' });
console.log(index.search({ query: 'agent', limit: 5, filter: () => true }));

Add access filtering, weighting, and a snapshot to the same search

Configuration · Node.js

Metadata allowed for filtering must be registered as storedFields; field filtering must rely on a trusted App identity and must not trust an identity the model claims.

TypeScript

import { TextSearch } from '@jangts/agent-core/kits/search';
type Document = { id: string; title: string; body: string; audience: string };
const options = { indexRevision: 'manual-v2', fields: ['title', 'body'] as const, storedFields: ['title', 'audience'] as const, boost: { title: 3 }, combineWith: 'AND' as const };
const index = new TextSearch<Document>(options);
index.upsert({ id: 'workflow', title: 'Agent Workflow', body: 'Define reusable nodes.', audience: 'public' });
index.upsert({ id: 'private', title: 'Agent internals', body: 'Internal notes.', audience: 'owner' });
const restored = TextSearch.restore<Document>(options, index.snapshot());
console.log(restored.search({ query: 'agent', limit: 5, filter: document => document.audience === 'public' }));
await restored.remove('workflow');

JavaScript

import { TextSearch } from '@jangts/agent-core/kits/search';
const options = { indexRevision: 'manual-v2', fields: ['title', 'body'], storedFields: ['title', 'audience'], boost: { title: 3 }, combineWith: 'AND' };
const index = new TextSearch(options);
index.upsert({ id: 'workflow', title: 'Agent Workflow', body: 'Define reusable nodes.', audience: 'public' });
index.upsert({ id: 'private', title: 'Agent internals', body: 'Internal notes.', audience: 'owner' });
const restored = TextSearch.restore(options, index.snapshot());
console.log(restored.search({ query: 'agent', limit: 5, filter: document => document.audience === 'public' }));
await restored.remove('workflow');

Related policy source

• Index fields, filtering, snapshot fingerprint, and removal