# ToriiDB

> ToriiDB is a Go embedded database with Redis-like commands, JSON documents, and vector search, built by 邱敬幃 Pardn Chiu (pardnchiu).

Maintained by 邱敬幃 Pardn Chiu (pardnchiu), Pardn Co., Ltd, Taiwan · Infrastructure Engineering. Source: https://github.com/pardnchiu/toriidb

Full text in one file: [English](https://toriidb.pardn.io/llms-full.txt) · [中文](https://toriidb.pardn.io/zh/llms-full.txt)

## Overview

- [Home](https://toriidb.pardn.io/index.md): ToriiDB is a Go embedded database with Redis-like commands, JSON documents, and vector search, built by 邱敬幃 Pardn Chiu (pardnchiu).
- [Getting Started](https://toriidb.pardn.io/getting-started.md): ToriiDB requirements, go get install, build commands, and how to choose between the socket daemon, the embedded store, and the REPL.
- [Quick Start: Daemon](https://toriidb.pardn.io/getting-started-daemon.md): Open a ToriiDB directory with daemon.New, start the socket server, and call Set and Get from any process that shares it.
- [Quick Start: Embedded](https://toriidb.pardn.io/getting-started-embedded.md): Open a ToriiDB directory in-process with store.New, run commands through Exec, and close it so data is compacted.
- [Quick Start: REPL](https://toriidb.pardn.io/getting-started-repl.md): Run the ToriiDB REPL, try Redis-like commands, enable VSEARCH with an OpenAI key, and use the make targets for tests.

## Concepts

- [Architecture](https://toriidb.pardn.io/architecture.md): One diagram of ToriiDB layers: socket daemon, command router, per-database state, snapshot persistence, and the embedding client.
- [Core Concepts](https://toriidb.pardn.io/core-concepts.md): ToriiDB Store, Session, and the 16 databases, the Entry struct and its parsed cache, and the reserved __torii: key namespace.
- [Value Types](https://toriidb.pardn.io/core-concepts-value-types.md): How ToriiDB detects json, int, float, bool, date, and string values, and how SetDefault, SetNX, and SetXX overwrite keys.
- [Expiration](https://toriidb.pardn.io/core-concepts-expiration.md): ToriiDB TTL semantics: TTL return codes, Expire, ExpireAt, Persist, and when expired keys are removed from memory and disk.
- [Errors](https://toriidb.pardn.io/core-concepts-errors.md): How ToriiDB reports failures: store Go errors, Exec text responses, and the daemon sentinel errors to test with errors.Is.

## Configuration

- [Configuration](https://toriidb.pardn.io/configuration.md): Configure the ToriiDB data directory and the OPENAI_API_KEY and TORIIDB_EMBED_DIM environment variables; there is no config file.
- [API Key](https://toriidb.pardn.io/configuration-api-key.md): ToriiDB looks for the OpenAI API key in the New argument, OPENAI_API_KEY, then the OS keychain; without one, vectors return ErrNoEmbedder.
- [Fixed Limits](https://toriidb.pardn.io/configuration-limits.md): Constants compiled into ToriiDB: embedding model and timeouts, compaction threshold, socket path, frame size, and client pool limits.

## Socket Daemon

- [Mode Resolution](https://toriidb.pardn.io/socket-daemon.md): How ToriiDB daemon.New hashes the resolved directory into one unix socket per location and picks server or client mode by dialing it.
- [Lifecycle](https://toriidb.pardn.io/socket-daemon-lifecycle.md): What Start, Stop, Close, Mode, Socket, and Store do on a ToriiDB Daemon in server mode versus client mode.
- [Data Methods](https://toriidb.pardn.io/socket-daemon-methods.md): ToriiDB Daemon Get, Entries, Set, SetVector, Del, TTL, Expire, Keys, and VSearch, and how content round-trips through Record.Value.
- [Wire Protocol](https://toriidb.pardn.io/socket-daemon-protocol.md): ToriiDB wire protocol: 4-byte big-endian length plus JSON frames, the nine request ops, and the error kinds clients map to sentinels.
- [Server-Side Filtering](https://toriidb.pardn.io/socket-daemon-filtering.md): How the ToriiDB daemon filters entries by contains and after, pages keys, and limits vsearch on the server before results cross the socket.
- [Connections](https://toriidb.pardn.io/socket-daemon-connections.md): ToriiDB daemon client connection pool, call deadlines, retry on EOF, EPIPE, or ECONNRESET, and the server's per-frame deadlines.

## Data Model

- [JSON Documents](https://toriidb.pardn.io/json-documents.md): How ToriiDB stores JSON objects and arrays with a parsed cache and reads nested fields with dot-notation paths like user.profile.level.
- [Writing JSON Fields](https://toriidb.pardn.io/json-documents-writes.md): Set, increment, and delete nested JSON fields in ToriiDB: value conversion, path creation rules, IncrField, and DelField behavior.

## Querying

- [Scans and KEYS](https://toriidb.pardn.io/querying.md): Compare ToriiDB KEYS, FIND, and QUERY scans, glob keys with path.Match patterns, and see how FIND and QUERY results are sorted and limited.
- [Operators and FIND](https://toriidb.pardn.io/querying-operators.md): ToriiDB comparison operators EQ, NE, GT, GTE, LT, LTE, and LIKE, and how FIND compares them against every raw value.
- [QUERY Expressions](https://toriidb.pardn.io/querying-query.md): Filter ToriiDB JSON documents with QUERY expressions using AND, OR, NOT, and parentheses, or build the same filters with the Go filter package.

## Vector Search

- [Attaching Vectors](https://toriidb.pardn.io/vector-search.md): ToriiDB vector search prerequisites and how SetVector stores text, embeds it with OpenAI in the background, and attaches the vector.
- [Embedding Cache](https://toriidb.pardn.io/vector-search-cache.md): ToriiDB embedding cache: the __torii:embed key derived from model, dimension, and text, and the base64 float32 value format.
- [VSEARCH and VSIM](https://toriidb.pardn.io/vector-search-query.md): Rank ToriiDB keys by cosine similarity with VSEARCH, MATCH, and LIMIT, compare two keys with VSIM, and read a vector with VGET.

## Persistence

- [Files and Writes](https://toriidb.pardn.io/persistence.md): ToriiDB on-disk layout of numbered snapshot and log files, the shared JSON record format, and the fsync-per-write path.
- [Replay and Recovery](https://toriidb.pardn.io/persistence-replay.md): How ToriiDB replays snapshots and logs on first use, falls back to the previous generation on read errors, and how to back up data.
- [Compaction and GC](https://toriidb.pardn.io/persistence-compaction.md): How ToriiDB compacts a database into a new snapshot atomically, garbage-collects old generations, and what Store.Close does.

## CLI Reference

- [Command Summary](https://toriidb.pardn.io/cli-reference.md): Every ToriiDB REPL and Exec command in one table, with the shared parsing rules and how to leave the REPL.
- [GET and SELECT](https://toriidb.pardn.io/cli-reference-read.md): ToriiDB GET, EXIST, TYPE, and SELECT command syntax, responses for missing or expired keys, and database index errors.
- [SET, DEL, INCR](https://toriidb.pardn.io/cli-reference-write.md): ToriiDB SET options NX, XX, seconds, and VECTOR and how they are parsed, plus DEL of keys or fields and INCR deltas.
- [TTL Commands](https://toriidb.pardn.io/cli-reference-expiration.md): ToriiDB TTL, EXPIRE, EXPIREAT, and PERSIST command syntax, return values, and error messages.
- [Scan and Vector](https://toriidb.pardn.io/cli-reference-scan.md): ToriiDB KEYS, FIND, and QUERY scan commands and the VSEARCH, VSIM, and VGET vector commands with their options and errors.

## API Reference

- [Packages](https://toriidb.pardn.io/api-reference.md): Map of ToriiDB's exported Go packages, daemon, store, filter, openai, and utils, with links to each reference page.
- [daemon](https://toriidb.pardn.io/api-reference-daemon.md): Go API of the ToriiDB daemon package: New, Start, Stop, Close, data methods, Record, ListResult, ScanOption, and errors.
- [store](https://toriidb.pardn.io/api-reference-store.md): Go API of the ToriiDB store package: New, Session, Close, Select, Exec, Set, SetField, Incr, Del, Get, Keys, Find, and Query.
- [store Types](https://toriidb.pardn.io/api-reference-store-types.md): Go API for ToriiDB store expiration and vectors, TTL, Expire, VSearch, VSim, VGet, plus the Entry, ValueType, and AOFRecord types.
- [filter](https://toriidb.pardn.io/api-reference-filter.md): Go API of the ToriiDB filter package: Filter, Operator, Cond, And, Or, Not, AtoFilter, AtoOperation, and Match.
- [openai](https://toriidb.pardn.io/api-reference-openai.md): Go API of the ToriiDB openai package: the embedding Client, New, and Embed with its error and dimension checks.
- [utils](https://toriidb.pardn.io/api-reference-utils.md): Go API of the ToriiDB utils package: WalkKeys, Atov, Vtoa, and Vtof for walking JSON paths and converting values.
- [Removed APIs](https://toriidb.pardn.io/removed-api.md): ToriiDB symbols removed since v0.4.0, such as Entry.JSON, FindOperation, and utils.WriteFile, with the removing release and replacement.

## Symbols

Exported symbol -> page that documents it.

- `And` (core/store/filter): [filter](https://toriidb.pardn.io/api-reference-filter.md), [QUERY Expressions](https://toriidb.pardn.io/querying-query.md)
- `AOFRecord` (core/store): [store Types](https://toriidb.pardn.io/api-reference-store-types.md), [Files and Writes](https://toriidb.pardn.io/persistence.md)
- `AtoFilter` (core/store/filter): [filter](https://toriidb.pardn.io/api-reference-filter.md)
- `AtoOperation` (core/store/filter): [Operators and FIND](https://toriidb.pardn.io/querying-operators.md)
- `Atov` (core/utils): [utils](https://toriidb.pardn.io/api-reference-utils.md), [Writing JSON Fields](https://toriidb.pardn.io/json-documents-writes.md)
- `Cond` (core/store/filter): [utils](https://toriidb.pardn.io/api-reference-utils.md), [QUERY Expressions](https://toriidb.pardn.io/querying-query.md)
- `Daemon` (core/daemon): [Architecture](https://toriidb.pardn.io/architecture.md)
- `Entry` (core/store): [store Types](https://toriidb.pardn.io/api-reference-store-types.md), [Core Concepts](https://toriidb.pardn.io/core-concepts.md)
- `EQ` (core/store/filter): [filter](https://toriidb.pardn.io/api-reference-filter.md), [Operators and FIND](https://toriidb.pardn.io/querying-operators.md)
- `ErrAlreadyRunning` (core/daemon): [Errors](https://toriidb.pardn.io/core-concepts-errors.md)
- `ErrBadRequest` (core/daemon): [Errors](https://toriidb.pardn.io/core-concepts-errors.md)
- `ErrNoEmbedder` (core/daemon, core/store): [Errors](https://toriidb.pardn.io/core-concepts-errors.md)
- `ErrNotFound` (core/daemon): [Data Methods](https://toriidb.pardn.io/socket-daemon-methods.md)
- `Filter` (core/store/filter): [QUERY Expressions](https://toriidb.pardn.io/querying-query.md)
- `GE` (core/store/filter): [filter](https://toriidb.pardn.io/api-reference-filter.md), [Operators and FIND](https://toriidb.pardn.io/querying-operators.md)
- `GT` (core/store/filter): [filter](https://toriidb.pardn.io/api-reference-filter.md), [Operators and FIND](https://toriidb.pardn.io/querying-operators.md)
- `GTE` (core/store/filter): [filter](https://toriidb.pardn.io/api-reference-filter.md), [Operators and FIND](https://toriidb.pardn.io/querying-operators.md)
- `LE` (core/store/filter): [filter](https://toriidb.pardn.io/api-reference-filter.md), [Operators and FIND](https://toriidb.pardn.io/querying-operators.md)
- `LIKE` (core/store/filter): [filter](https://toriidb.pardn.io/api-reference-filter.md), [Operators and FIND](https://toriidb.pardn.io/querying-operators.md)
- `ListResult` (core/daemon): [daemon](https://toriidb.pardn.io/api-reference-daemon.md), [Data Methods](https://toriidb.pardn.io/socket-daemon-methods.md)
- `LT` (core/store/filter): [filter](https://toriidb.pardn.io/api-reference-filter.md), [Operators and FIND](https://toriidb.pardn.io/querying-operators.md)
- `LTE` (core/store/filter): [filter](https://toriidb.pardn.io/api-reference-filter.md), [Operators and FIND](https://toriidb.pardn.io/querying-operators.md)
- `Match` (core/store/filter): [Scans and KEYS](https://toriidb.pardn.io/querying.md)
- `Mode` (core/daemon): [Lifecycle](https://toriidb.pardn.io/socket-daemon-lifecycle.md)
- `ModeClient` (core/daemon): [Mode Resolution](https://toriidb.pardn.io/socket-daemon.md)
- `ModeServer` (core/daemon): [Mode Resolution](https://toriidb.pardn.io/socket-daemon.md)
- `NE` (core/store/filter): [filter](https://toriidb.pardn.io/api-reference-filter.md), [QUERY Expressions](https://toriidb.pardn.io/querying-query.md)
- `New` (core/daemon, core/openai, core/store): [Mode Resolution](https://toriidb.pardn.io/socket-daemon.md)
- `Not` (core/store/filter): [filter](https://toriidb.pardn.io/api-reference-filter.md), [QUERY Expressions](https://toriidb.pardn.io/querying-query.md)
- `Or` (core/store/filter): [filter](https://toriidb.pardn.io/api-reference-filter.md), [QUERY Expressions](https://toriidb.pardn.io/querying-query.md)
- `Parser` (core/store/filter): [filter](https://toriidb.pardn.io/api-reference-filter.md)
- `Record` (core/daemon): [daemon](https://toriidb.pardn.io/api-reference-daemon.md), [Data Methods](https://toriidb.pardn.io/socket-daemon-methods.md)
- `ScanOption` (core/daemon): [Data Methods](https://toriidb.pardn.io/socket-daemon-methods.md)
- `Session` (core/store): [store](https://toriidb.pardn.io/api-reference-store.md), [Core Concepts](https://toriidb.pardn.io/core-concepts.md)
- `SetDefault` (core/store): [Value Types](https://toriidb.pardn.io/core-concepts-value-types.md)
- `SetNX` (core/store): [Value Types](https://toriidb.pardn.io/core-concepts-value-types.md)
- `SetXX` (core/store): [Value Types](https://toriidb.pardn.io/core-concepts-value-types.md)
- `Store` (core/store): [daemon](https://toriidb.pardn.io/api-reference-daemon.md), [Core Concepts](https://toriidb.pardn.io/core-concepts.md)
- `TypeBool` (core/store): [Value Types](https://toriidb.pardn.io/core-concepts-value-types.md)
- `TypeDate` (core/store): [Value Types](https://toriidb.pardn.io/core-concepts-value-types.md)
- `TypeFloat` (core/store): [Value Types](https://toriidb.pardn.io/core-concepts-value-types.md)
- `TypeInt` (core/store): [Value Types](https://toriidb.pardn.io/core-concepts-value-types.md)
- `TypeJSON` (core/store): [Value Types](https://toriidb.pardn.io/core-concepts-value-types.md)
- `TypeString` (core/store): [Value Types](https://toriidb.pardn.io/core-concepts-value-types.md)
- `ValueType` (core/store): [store Types](https://toriidb.pardn.io/api-reference-store-types.md)
- `Vtoa` (core/utils): [utils](https://toriidb.pardn.io/api-reference-utils.md), [JSON Documents](https://toriidb.pardn.io/json-documents.md)
- `Vtof` (core/utils): [utils](https://toriidb.pardn.io/api-reference-utils.md)
- `WalkKeys` (core/utils): [utils](https://toriidb.pardn.io/api-reference-utils.md)

## 中文文件

- [首頁](https://toriidb.pardn.io/zh/index.md): ToriiDB 是邱敬幃（Pardn Chiu／pardnchiu）開發的 Go 內嵌式資料庫，提供 Redis 風格指令、JSON 文件與向量搜尋。
- [快速開始](https://toriidb.pardn.io/zh/getting-started.md): ToriiDB 的執行需求、go get 安裝、建置指令，以及如何在 socket daemon、內嵌 store 與 REPL 之間選擇入口。
- [快速上手：Daemon](https://toriidb.pardn.io/zh/getting-started-daemon.md): 以 daemon.New 開啟 ToriiDB 目錄、啟動 socket server，並在共用該目錄的任一 process 呼叫 Set 與 Get。
- [快速上手：內嵌 Store](https://toriidb.pardn.io/zh/getting-started-embedded.md): 以 store.New 在 process 內開啟 ToriiDB 目錄、透過 Exec 執行指令，並在結束前 Close 以完成壓縮。
- [快速上手：REPL](https://toriidb.pardn.io/zh/getting-started-repl.md): 執行 ToriiDB REPL 試用 Redis 風格指令、以 OpenAI key 啟用 VSEARCH，並使用 make target 執行測試。
- [架構](https://toriidb.pardn.io/zh/architecture.md): 以一張圖說明 ToriiDB 分層：socket daemon、指令路由、各資料庫狀態、snapshot 持久化與 embedding client。
- [核心概念](https://toriidb.pardn.io/zh/core-concepts.md): ToriiDB 的 Store、Session 與 16 個資料庫、Entry 結構與其解析快取，以及保留的 __torii: 鍵命名空間。
- [值型別](https://toriidb.pardn.io/zh/core-concepts-value-types.md): ToriiDB 如何判定 json、int、float、bool、date、string 值，以及 SetDefault、SetNX、SetXX 如何覆寫鍵。
- [過期](https://toriidb.pardn.io/zh/core-concepts-expiration.md): ToriiDB 的 TTL 語意：TTL 回傳碼、Expire、ExpireAt、Persist，以及過期鍵何時從記憶體與磁碟移除。
- [錯誤](https://toriidb.pardn.io/zh/core-concepts-errors.md): ToriiDB 各層的失敗回報：store 的 Go error、Exec 文字回應，與以 errors.Is 判斷的 daemon 錯誤。
- [設定](https://toriidb.pardn.io/zh/configuration.md): 設定 ToriiDB 資料目錄與 OPENAI_API_KEY、TORIIDB_EMBED_DIM 環境變數；ToriiDB 沒有設定檔。
- [API Key](https://toriidb.pardn.io/zh/configuration-api-key.md): ToriiDB 依 New 參數、OPENAI_API_KEY、keychain 順序找 OpenAI key，無 key 時回傳 ErrNoEmbedder。
- [固定限制](https://toriidb.pardn.io/zh/configuration-limits.md): 編譯進 ToriiDB 的常數：embedding 模型與逾時、壓縮門檻、socket 路徑、frame 大小與 client 連線池限制。
- [模式判定](https://toriidb.pardn.io/zh/socket-daemon.md): ToriiDB 的 daemon.New 如何把解析後的目錄雜湊成每個位置一個 unix socket，並以撥號決定 server 或 client 模式。
- [生命週期](https://toriidb.pardn.io/zh/socket-daemon-lifecycle.md): ToriiDB Daemon 的 Start、Stop、Close、Mode、Socket、Store 在 server 與 client 模式的差異。
- [資料方法](https://toriidb.pardn.io/zh/socket-daemon-methods.md): ToriiDB Daemon 的 Get、Entries、Set、Del、TTL、Expire、Keys、VSearch 與 Record.Value。
- [傳輸協定](https://toriidb.pardn.io/zh/socket-daemon-protocol.md): ToriiDB 傳輸協定：4-byte 長度加 JSON frame、九種 request op，以及對應 sentinel 的錯誤種類。
- [Server 端篩選](https://toriidb.pardn.io/zh/socket-daemon-filtering.md): ToriiDB daemon 在 server 端以 contains、after 篩選 entries、為 keys 分頁並限制 vsearch。
- [連線處理](https://toriidb.pardn.io/zh/socket-daemon-connections.md): ToriiDB daemon client 的連線池、呼叫期限、EOF／EPIPE／ECONNRESET 重試與 server 期限。
- [JSON 文件](https://toriidb.pardn.io/zh/json-documents.md): ToriiDB 如何以解析快取儲存 JSON object 與 array，並以 user.profile.level 這類點記法路徑讀取巢狀欄位。
- [寫入 JSON 欄位](https://toriidb.pardn.io/zh/json-documents-writes.md): 在 ToriiDB 中設定、遞增與刪除巢狀 JSON 欄位：值轉換、路徑建立規則，以及 IncrField、DelField 的行為。
- [掃描與 KEYS](https://toriidb.pardn.io/zh/querying.md): 比較 ToriiDB 的 KEYS、FIND、QUERY 掃描，以 path.Match 樣式比對鍵，並了解 FIND 與 QUERY 結果的排序與限制。
- [運算子與 FIND](https://toriidb.pardn.io/zh/querying-operators.md): ToriiDB 的比較運算子 EQ、NE、GT、GTE、LT、LTE、LIKE，以及 FIND 如何以它們比對每個原始值。
- [QUERY 運算式](https://toriidb.pardn.io/zh/querying-query.md): 以 QUERY 運算式（AND、OR、NOT 與括號）篩選 ToriiDB JSON 文件，或用 Go filter 套件建立相同的條件。
- [附加向量](https://toriidb.pardn.io/zh/vector-search.md): ToriiDB 向量搜尋的前置條件，以及 SetVector 如何儲存文字、在背景以 OpenAI 產生 embedding 並附加向量。
- [Embedding 快取](https://toriidb.pardn.io/zh/vector-search-cache.md): ToriiDB embedding 快取：由模型、維度與文字推導出的 __torii:embed 鍵，以及 base64 float32 值格式。
- [VSEARCH 與 VSIM](https://toriidb.pardn.io/zh/vector-search-query.md): 以 VSEARCH、MATCH、LIMIT 依餘弦相似度排序 ToriiDB 鍵，以 VSIM 比較兩鍵，以 VGET 讀取向量。
- [檔案與寫入](https://toriidb.pardn.io/zh/persistence.md): ToriiDB 以編號 snapshot 與 log 檔構成的磁碟結構、共用的 JSON 紀錄格式，以及每筆寫入 fsync 的流程。
- [重播與復原](https://toriidb.pardn.io/zh/persistence-replay.md): ToriiDB 首次使用時如何重播 snapshot 與 log、讀取錯誤時退回前一世代，以及如何備份資料。
- [壓縮與回收](https://toriidb.pardn.io/zh/persistence-compaction.md): ToriiDB 如何以原子方式把資料庫壓縮成新 snapshot、回收舊世代，以及 Store.Close 的行為。
- [指令摘要](https://toriidb.pardn.io/zh/cli-reference.md): 以一張表列出所有 ToriiDB REPL 與 Exec 指令，並說明共通解析規則與如何離開 REPL。
- [GET 與 SELECT](https://toriidb.pardn.io/zh/cli-reference-read.md): ToriiDB GET、EXIST、TYPE、SELECT 的語法、鍵不存在或過期時的回應，以及資料庫索引錯誤。
- [SET、DEL、INCR](https://toriidb.pardn.io/zh/cli-reference-write.md): ToriiDB SET 的 NX、XX、秒數、VECTOR 選項與解析方式，以及刪除鍵或欄位的 DEL 與 INCR 增量。
- [TTL 指令](https://toriidb.pardn.io/zh/cli-reference-expiration.md): ToriiDB TTL、EXPIRE、EXPIREAT、PERSIST 指令的語法、回傳值與錯誤訊息。
- [掃描與向量](https://toriidb.pardn.io/zh/cli-reference-scan.md): ToriiDB 的 KEYS、FIND、QUERY 掃描指令，以及 VSEARCH、VSIM、VGET 向量指令的選項與錯誤。
- [套件](https://toriidb.pardn.io/zh/api-reference.md): ToriiDB 公開 Go 套件（daemon、store、filter、openai、utils）一覽，並連到各自的參考頁。
- [daemon](https://toriidb.pardn.io/zh/api-reference-daemon.md): ToriiDB daemon 套件 Go API：New、Start、Stop、Close、資料方法、Record、ListResult 與錯誤。
- [store](https://toriidb.pardn.io/zh/api-reference-store.md): ToriiDB store 套件 Go API：New、Session、Close、Select、Exec、Set、Incr、Del、Get、Query。
- [store 型別](https://toriidb.pardn.io/zh/api-reference-store-types.md): ToriiDB store 的過期與向量 API（TTL、Expire、VSearch、VSim），與 Entry、ValueType、AOFRecord。
- [filter](https://toriidb.pardn.io/zh/api-reference-filter.md): ToriiDB filter 套件 Go API：Filter、Operator、Cond、And、Or、Not、AtoFilter、Match。
- [openai](https://toriidb.pardn.io/zh/api-reference-openai.md): ToriiDB openai 套件的 Go API：embedding Client、New 與 Embed，以及其錯誤與維度檢查。
- [utils](https://toriidb.pardn.io/zh/api-reference-utils.md): ToriiDB utils 套件的 Go API：WalkKeys、Atov、Vtoa、Vtof，用於走訪 JSON 路徑與轉換值。
- [已移除 API](https://toriidb.pardn.io/zh/removed-api.md): ToriiDB 自 v0.4.0 起移除的符號（如 Entry.JSON、FindOperation、utils.WriteFile），以及移除版本與替代做法。

## Optional

- [Release Notes](https://toriidb.pardn.io/released/index.md): ToriiDB changelog by version