diff --git a/cspell.config.yaml b/cspell.config.yaml
index 4dcd1b6d..0752c7af 100644
--- a/cspell.config.yaml
+++ b/cspell.config.yaml
@@ -1,4 +1,4 @@
-version: '0.2'
+version: "0.2"
 ignorePaths: []
 dictionaryDefinitions: []
 dictionaries: []
@@ -13,6 +13,7 @@ words:
   - gcornut
   - importantimport
   - koemotion
+  - masknet
   - Moeru
   - moeru-ai
   - mxbai-embed-large
@@ -22,6 +23,7 @@ words:
   - Ollama
   - pkgroll
   - qwen
+  - sonarjs
   - twoslash
   - typeschema
   - unspeech
diff --git a/packages/generate-object/package.json b/packages/generate-object/package.json
index 64d67e5b..a74c8a4f 100644
--- a/packages/generate-object/package.json
+++ b/packages/generate-object/package.json
@@ -33,8 +33,7 @@
   },
   "dependencies": {
     "@typeschema/main": "catalog:",
-    "@xsai/generate-text": "workspace:",
-    "@xsai/shared": "workspace:"
+    "@xsai/generate-text": "workspace:"
   },
   "devDependencies": {
     "@gcornut/valibot-json-schema": "catalog:",
diff --git a/packages/generate-object/src/index.ts b/packages/generate-object/src/index.ts
index 2b3b6603..1fd0b63a 100644
--- a/packages/generate-object/src/index.ts
+++ b/packages/generate-object/src/index.ts
@@ -1,6 +1,5 @@
 import { type Infer, type Schema, toJSONSchema, validate } from '@typeschema/main'
 import { generateText, type GenerateTextOptions, type GenerateTextResult } from '@xsai/generate-text'
-import { clean } from '@xsai/shared'
 
 export interface GenerateObjectOptions<T extends Schema> extends GenerateTextOptions {
   schema: T
@@ -15,17 +14,14 @@ export interface GenerateObjectResult<T extends Schema> extends Omit<GenerateTex
 
 /** @experimental WIP */
 export const generateObject = async <T extends Schema>(options: GenerateObjectOptions<T>): Promise<GenerateObjectResult<T>> =>
+  // eslint-disable-next-line @masknet/no-then
   generateText({
     ...options,
     response_format: {
       json_schema: {
         description: options.schemaDescription,
         name: options.schemaName ?? 'json_schema',
-        schema: await toJSONSchema(options.schema)
-          .then(json => clean({
-            ...json,
-            $schema: undefined,
-          })),
+        schema: await toJSONSchema(options.schema),
         strict: true,
       },
       type: 'json_schema',
diff --git a/packages/generate-object/test/index.test.ts b/packages/generate-object/test/index.test.ts
index f3a80fed..1ad3db7e 100644
--- a/packages/generate-object/test/index.test.ts
+++ b/packages/generate-object/test/index.test.ts
@@ -4,6 +4,7 @@ import { describe, expect, it } from 'vitest'
 
 import { generateObject } from '../src'
 
+// eslint-disable-next-line @masknet/no-top-level
 describe('@xsai/generate-object', () => {
   it('basic', async () => {
     const { object } = await generateObject({
diff --git a/packages/generate-speech/test/index.test.ts b/packages/generate-speech/test/index.test.ts
index fb38c257..4ec6144a 100644
--- a/packages/generate-speech/test/index.test.ts
+++ b/packages/generate-speech/test/index.test.ts
@@ -3,6 +3,7 @@ import { describe, expect, it } from 'vitest'
 
 import { generateSpeech } from '../src'
 
+// eslint-disable-next-line @masknet/no-top-level
 describe('@xsai/generate-speech', () => {
   it('basic', async () => {
     const speech = await generateSpeech({
@@ -17,6 +18,7 @@ describe('@xsai/generate-speech', () => {
   it('chinese', async () => {
     const speech = await generateSpeech({
       baseURL: new URL('http://localhost:5050'),
+      // eslint-disable-next-line @masknet/unicode-specific-set
       input: '我能吞下玻璃而不伤身体。',
       model: 'tts-1',
       voice: 'zh-CN-XiaoyiNeural',
diff --git a/packages/generate-text/src/index.ts b/packages/generate-text/src/index.ts
index 8d68da3a..dd3a543c 100644
--- a/packages/generate-text/src/index.ts
+++ b/packages/generate-text/src/index.ts
@@ -72,6 +72,7 @@ type RawGenerateTextTrampoline<T> = Promise<(() => RawGenerateTextTrampoline<T>)
 
 /** @internal */
 const rawGenerateText: RawGenerateText = async (options: GenerateTextOptions) =>
+  // eslint-disable-next-line @masknet/no-then
   chat({
     ...options,
     maxSteps: undefined,
@@ -88,7 +89,7 @@ const rawGenerateText: RawGenerateText = async (options: GenerateTextOptions) =>
 
       const { finish_reason: finishReason, message } = choices[0]
 
-      if (message.content || !message.tool_calls || steps.length >= (options.maxSteps ?? 1)) {
+      if (message.content !== undefined || !message.tool_calls || steps.length >= (options.maxSteps ?? 1)) {
         const step: StepResult = {
           text: message.content,
           toolCalls,
@@ -116,7 +117,7 @@ const rawGenerateText: RawGenerateText = async (options: GenerateTextOptions) =>
         type: toolCallType,
       } of message.tool_calls) {
         const tool = (options.tools as Tool[]).find(tool => tool.function.name === toolName)!
-        const parsedArgs: Record<string, unknown> = JSON.parse(toolArgs)
+        const parsedArgs = JSON.parse(toolArgs) as Record<string, unknown>
         const result = await tool.execute(parsedArgs)
 
         toolCalls.push({
diff --git a/packages/generate-transcription/src/index.ts b/packages/generate-transcription/src/index.ts
index bcee1c36..25eca785 100644
--- a/packages/generate-transcription/src/index.ts
+++ b/packages/generate-transcription/src/index.ts
@@ -24,6 +24,7 @@ export const generateTranscription = async (options: GenerateTranscriptionOption
   body.append('model', options.model)
   body.append('file', options.file, options.fileName)
 
+  // eslint-disable-next-line @masknet/no-then
   return (options.fetch ?? globalThis.fetch)(requestURL('audio/transcriptions', options.baseURL), {
     body,
     headers: requestHeaders(options.headers, options.apiKey),
diff --git a/packages/generate-transcription/test/index.test.ts b/packages/generate-transcription/test/index.test.ts
index 829fb125..a0666ff2 100644
--- a/packages/generate-transcription/test/index.test.ts
+++ b/packages/generate-transcription/test/index.test.ts
@@ -3,6 +3,7 @@ import { describe, expect, it } from 'vitest'
 
 import { generateTranscription } from '../src'
 
+// eslint-disable-next-line @masknet/no-top-level
 describe('@xsai/generate-transcription', () => {
   it('basic', async () => {
     const { text } = await generateTranscription({
diff --git a/packages/model/src/utils/list-models.ts b/packages/model/src/utils/list-models.ts
index f4824b01..8ed38f34 100644
--- a/packages/model/src/utils/list-models.ts
+++ b/packages/model/src/utils/list-models.ts
@@ -10,6 +10,7 @@ export interface ListModelsResponse {
 }
 
 export const listModels = async (options: ListModelsOptions): Promise<Model[]> =>
+  // eslint-disable-next-line @masknet/no-then
   (options.fetch ?? globalThis.fetch)(requestURL('models', options.baseURL), {
     headers: requestHeaders({
       'Content-Type': 'application/json',
diff --git a/packages/model/test/index.test.ts b/packages/model/test/index.test.ts
index a71dbf96..5b42af12 100644
--- a/packages/model/test/index.test.ts
+++ b/packages/model/test/index.test.ts
@@ -3,6 +3,7 @@ import { describe, expect, it } from 'vitest'
 
 import { listModels, retrieveModel } from '../src'
 
+// eslint-disable-next-line @masknet/no-top-level
 describe('@xsai/model', () => {
   it('listModels', async () => {
     const models = await listModels({
diff --git a/packages/providers/src/providers/ollama.ts b/packages/providers/src/providers/ollama.ts
index 891cd8f4..3ad6ad64 100644
--- a/packages/providers/src/providers/ollama.ts
+++ b/packages/providers/src/providers/ollama.ts
@@ -4,8 +4,8 @@ import { generateCRO } from '../utils/generate-cro'
 
 export const createOllama = (userOptions?: ProviderOptions<false>):
   /** @see {@link https://ollama.com/search} */
-  ChatProvider<'gemma2' | 'llama3.1' | 'llama3.2' | 'llama3.2-vision' | 'llama3.3' | 'qwen2.5' | 'qwen2.5-coder' | 'qwq' | (string & {})>
-  & EmbedProvider<'all-minilm' | 'mxbai-embed-large' | 'nomic-embed-text' | (string & {})>
+  ChatProvider<'gemma2' | 'llama3.1' | 'llama3.2' | 'llama3.2-vision' | 'llama3.3' | 'qwen2.5' | 'qwen2.5-coder' | 'qwq'>
+  & EmbedProvider<'all-minilm' | 'mxbai-embed-large' | 'nomic-embed-text'>
   & ModelProvider => {
   const options: ProviderResult = {
     ...userOptions,
diff --git a/packages/providers/src/providers/unspeech/elevenlabs.ts b/packages/providers/src/providers/unspeech/elevenlabs.ts
index 0f553836..85781e29 100644
--- a/packages/providers/src/providers/unspeech/elevenlabs.ts
+++ b/packages/providers/src/providers/unspeech/elevenlabs.ts
@@ -8,10 +8,10 @@ import { generateCRO } from '../../utils/generate-cro'
 /** @see {@link https://elevenlabs.io/docs/api-reference/text-to-speech/convert#request} */
 export interface UnElevenLabsOptions {
   /**
-   * This parameter controls text normalization with three modes: ‘auto’, ‘on’, and ‘off’. When set to ‘auto’,
+   * This parameter controls text normalization with three modes: 'auto', 'on', and 'off'. When set to 'auto',
    * the system will automatically decide whether to apply text normalization (e.g., spelling out numbers).
-   * With ‘on’, text normalization will always be applied, while with ‘off’, it will be skipped. Cannot be
-   * turned on for ‘eleven_turbo_v2_5’ model.
+   * With 'on', text normalization will always be applied, while with 'off', it will be skipped. Cannot be
+   * turned on for 'eleven_turbo_v2_5' model.
    */
   applyTextNormalization?: 'auto' | 'off' | 'on'
   /**
@@ -63,7 +63,7 @@ export interface UnElevenLabsOptions {
    */
   seed?: number
   /**
-   * Voice settings overriding stored setttings for the given voice. They are applied only on the given request.
+   * Voice settings overriding stored settings for the given voice. They are applied only on the given request.
    */
   voiceSettings?: {
     similarityBoost?: number
diff --git a/packages/providers/src/types/provider.ts b/packages/providers/src/types/provider.ts
index 6c33e4c2..e459843b 100644
--- a/packages/providers/src/types/provider.ts
+++ b/packages/providers/src/types/provider.ts
@@ -1,10 +1,12 @@
 import type { CommonRequestOptions } from '@xsai/shared'
 
 export interface ChatProvider<T extends string = string> {
+  // eslint-disable-next-line sonarjs/no-useless-intersection
   chat: (model: (string & {}) | T) => CommonRequestOptions
 }
 
 export interface EmbedProvider<T extends string = string> {
+  // eslint-disable-next-line sonarjs/no-useless-intersection
   embed: (model: (string & {}) | T) => CommonRequestOptions
 }
 
@@ -22,10 +24,13 @@ export type ProviderResult = Omit<CommonRequestOptions, 'model'> & Partial<Pick<
 
 export interface SpeechProvider<T extends string = string, T2 = undefined> {
   speech: T2 extends undefined
+    // eslint-disable-next-line sonarjs/no-useless-intersection
     ? (model: (string & {}) | T) => CommonRequestOptions
+    // eslint-disable-next-line sonarjs/no-useless-intersection
     : (model: (string & {}) | T, extraOptions?: T2) => CommonRequestOptions & T2
 }
 
 export interface TranscriptionProvider<T extends string = string> {
+  // eslint-disable-next-line sonarjs/no-useless-intersection
   transcription: (model: (string & {}) | T) => CommonRequestOptions
 }
diff --git a/packages/shared/src/utils/request-headers.ts b/packages/shared/src/utils/request-headers.ts
index da91bd36..b9a8c9a8 100644
--- a/packages/shared/src/utils/request-headers.ts
+++ b/packages/shared/src/utils/request-headers.ts
@@ -3,6 +3,6 @@ import type { CommonRequestOptions } from '../types'
 import { clean } from './clean'
 
 export const requestHeaders = (headers?: CommonRequestOptions['headers'], apiKey?: CommonRequestOptions['apiKey']) => clean({
-  Authorization: apiKey ? `Bearer ${apiKey}` : undefined,
+  Authorization: apiKey !== undefined ? `Bearer ${apiKey}` : undefined,
   ...headers,
 })
diff --git a/packages/shared/src/utils/response-json.ts b/packages/shared/src/utils/response-json.ts
index 4c8f2d3f..788beef2 100644
--- a/packages/shared/src/utils/response-json.ts
+++ b/packages/shared/src/utils/response-json.ts
@@ -1,5 +1,6 @@
 import { responseCatch } from './response-catch'
 
 export const responseJSON = async <T>(res: Response) =>
+  // eslint-disable-next-line @masknet/no-then
   responseCatch(res)
     .then(async res => res.json() as Promise<T>)
diff --git a/packages/stream-object/package.json b/packages/stream-object/package.json
index 5e5f2513..f62df2d9 100644
--- a/packages/stream-object/package.json
+++ b/packages/stream-object/package.json
@@ -37,7 +37,6 @@
   },
   "dependencies": {
     "@typeschema/main": "catalog:",
-    "@xsai/shared": "workspace:",
     "@xsai/stream-text": "workspace:"
   },
   "devDependencies": {
diff --git a/packages/stream-object/src/index.ts b/packages/stream-object/src/index.ts
index 1b963d4a..088bf432 100644
--- a/packages/stream-object/src/index.ts
+++ b/packages/stream-object/src/index.ts
@@ -1,7 +1,6 @@
 import type { PartialDeep } from 'type-fest'
 
 import { type Infer, type Schema, toJSONSchema } from '@typeschema/main'
-import { clean } from '@xsai/shared'
 import { streamText, type StreamTextOptions, type StreamTextResult } from '@xsai/stream-text'
 import { parse } from 'best-effort-json-parser'
 
@@ -17,17 +16,14 @@ export interface StreamObjectResult<T extends Schema> extends StreamTextResult {
 
 /** @experimental WIP */
 export const streamObject = async <T extends Schema>(options: StreamObjectOptions<T>): Promise<StreamObjectResult<T>> =>
+// eslint-disable-next-line @masknet/no-then
   streamText({
     ...options,
     response_format: {
       json_schema: {
         description: options.schemaDescription,
         name: options.schemaName ?? 'json_schema',
-        schema: await toJSONSchema(options.schema)
-          .then(json => clean({
-            ...json,
-            $schema: undefined,
-          })),
+        schema: await toJSONSchema(options.schema),
         strict: true,
       },
       type: 'json_schema',
@@ -39,19 +35,18 @@ export const streamObject = async <T extends Schema>(options: StreamObjectOption
     const [textStream, rawPartialObjectStream] = rawTextStream.tee()
 
     let partialObjectData = ''
-    let partialObjectSnapshot = {}
+    let partialObjectSnapshot = {} as PartialDeep<Infer<T>>
     const partialObjectStream = rawPartialObjectStream.pipeThrough(new TransformStream({
       transform: (chunk, controller) => {
         partialObjectData += chunk
         try {
-          const data = parse(partialObjectData)
+          const data = parse(partialObjectData) as PartialDeep<Infer<T>>
 
           if (JSON.stringify(partialObjectSnapshot) !== JSON.stringify(data)) {
             partialObjectSnapshot = data
             controller.enqueue(data)
           }
         }
-        // TODO: maybe handle
         catch {}
       },
     }))
diff --git a/packages/stream-object/test/index.test.ts b/packages/stream-object/test/index.test.ts
index 82f7010e..bfc48602 100644
--- a/packages/stream-object/test/index.test.ts
+++ b/packages/stream-object/test/index.test.ts
@@ -4,6 +4,16 @@ import { describe, expect, it } from 'vitest'
 
 import { streamObject } from '../src'
 
+// make TS happy
+// https://developer.mozilla.org/en-US/docs/Web/API/ReadableStream#browser_compatibility
+declare global {
+  interface ReadableStream<R = any> {
+    // eslint-disable-next-line ts/method-signature-style
+    [Symbol.asyncIterator](): AsyncIterableIterator<R>
+  }
+}
+
+// eslint-disable-next-line @masknet/no-top-level
 describe('@xsai/stream-object', () => {
   it('basic', async () => {
     const { partialObjectStream } = await streamObject({
diff --git a/packages/stream-text/src/index.ts b/packages/stream-text/src/index.ts
index 15b6d393..b9f2cc89 100644
--- a/packages/stream-text/src/index.ts
+++ b/packages/stream-text/src/index.ts
@@ -44,11 +44,13 @@ export interface StreamTextResult {
   usage?: Usage
 }
 
+// eslint-disable-next-line @masknet/string-no-data-url
 const chunkHeaderPrefix = 'data:'
 
 /**
  * @experimental WIP, does not support function calling (tools).
  */
+// eslint-disable-next-line @masknet/no-then
 export const streamText = async (options: StreamTextOptions): Promise<StreamTextResult> => chat({
   ...options,
   stream: true,
@@ -87,16 +89,16 @@ export const streamText = async (options: StreamTextOptions): Promise<StreamText
     }
 
     // Process normal chunk
-    const chunk: ChunkResult = JSON.parse(data)
+    const chunk = JSON.parse(data) as ChunkResult
     controller.enqueue(chunk)
 
     if (options.onChunk)
       await options.onChunk(chunk)
 
-    if (chunk.choices[0].finish_reason) {
+    if (chunk.choices[0].finish_reason !== undefined) {
       finishReason = chunk.choices[0].finish_reason
     }
-    if (chunk.usage) {
+    if (chunk.usage !== undefined) {
       usage = chunk.usage
     }
   }
@@ -105,11 +107,11 @@ export const streamText = async (options: StreamTextOptions): Promise<StreamText
 
   // null body handled by import('@xsai/shared-chat').chat()
   const rawChunkStream = res.body!.pipeThrough(new TransformStream({
-    transform: async (chunk, controller) => {
+    transform: async (chunk, controller: TransformStreamDefaultController<ChunkResult>) => {
       const text = decoder.decode(chunk, { stream: true })
       buffer += text
       const lines = buffer.split('\n')
-      buffer = lines.pop() || ''
+      buffer = lines.pop() ?? ''
 
       // Process complete lines
       for (const line of lines) {
diff --git a/packages/stream-text/test/index.test.ts b/packages/stream-text/test/index.test.ts
index b9cd98a1..46a7f515 100644
--- a/packages/stream-text/test/index.test.ts
+++ b/packages/stream-text/test/index.test.ts
@@ -2,8 +2,18 @@ import { ollama } from '@xsai/providers'
 import { clean } from '@xsai/shared'
 import { describe, expect, it } from 'vitest'
 
-import { streamText, type StreamTextResponse } from '../src'
+import { type ChunkResult, streamText } from '../src'
 
+// make TS happy
+// https://developer.mozilla.org/en-US/docs/Web/API/ReadableStream#browser_compatibility
+declare global {
+  interface ReadableStream<R = any> {
+    // eslint-disable-next-line ts/method-signature-style
+    [Symbol.asyncIterator](): AsyncIterableIterator<R>
+  }
+}
+
+// eslint-disable-next-line @masknet/no-top-level
 describe('@xsai/stream-text', () => {
   it('basic', async () => {
     const { textStream } = await streamText({
@@ -49,7 +59,7 @@ describe('@xsai/stream-text', () => {
       onChunk: () => { onChunkCount++ },
     })
 
-    const chunk: StreamTextResponse[] = []
+    const chunk: ChunkResult[] = []
     const text: string[] = []
 
     for await (const chunkPart of chunkStream) {
@@ -71,6 +81,4 @@ describe('@xsai/stream-text', () => {
 
     expect(onChunkCount).toMatchSnapshot(chunkCount)
   })
-
-  // TODO: error handling
 })
diff --git a/packages/tool/src/generate-text.ts b/packages/tool/src/generate-text.ts
index 17b35a3f..22979a30 100644
--- a/packages/tool/src/generate-text.ts
+++ b/packages/tool/src/generate-text.ts
@@ -1,6 +1,4 @@
 import type { Schema } from '@typeschema/main'
-// eslint-disable-next-line unused-imports/no-unused-imports
-import type { GenerateTextOptions as _GTO } from '@xsai/generate-text'
 
 import type { ToolResult } from '.'
 
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 12277b15..a4199286 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -187,9 +187,6 @@ importers:
       '@xsai/generate-text':
         specifier: 'workspace:'
         version: link:../generate-text
-      '@xsai/shared':
-        specifier: 'workspace:'
-        version: link:../shared
     devDependencies:
       '@gcornut/valibot-json-schema':
         specifier: 'catalog:'
@@ -263,9 +260,6 @@ importers:
       '@typeschema/main':
         specifier: 'catalog:'
         version: 0.14.1(@types/json-schema@7.0.15)(@typeschema/valibot@0.14.0(@gcornut/valibot-json-schema@0.42.0(esbuild@0.24.2)(typescript@5.6.3))(@types/json-schema@7.0.15)(valibot@0.42.1(typescript@5.6.3)))
-      '@xsai/shared':
-        specifier: 'workspace:'
-        version: link:../shared
       '@xsai/stream-text':
         specifier: 'workspace:'
         version: link:../stream-text
@@ -8421,7 +8415,7 @@ snapshots:
 
   '@vue/compiler-core@3.5.13':
     dependencies:
-      '@babel/parser': 7.26.2
+      '@babel/parser': 7.26.5
       '@vue/shared': 3.5.13
       entities: 4.5.0
       estree-walker: 2.0.2
@@ -8434,7 +8428,7 @@ snapshots:
 
   '@vue/compiler-sfc@3.5.13':
     dependencies:
-      '@babel/parser': 7.26.2
+      '@babel/parser': 7.26.5
       '@vue/compiler-core': 3.5.13
       '@vue/compiler-dom': 3.5.13
       '@vue/compiler-ssr': 3.5.13