Add brave as alternative WebSearchTool

src/tools/WebSearchTool/__tests__/adapterFactory.test.ts

@@ -0,0 +1,70 @@
+import { afterEach, describe, expect, mock, test } from 'bun:test'
+
+let isFirstPartyBaseUrl = true
+
+mock.module('../adapters/apiAdapter.js', () => ({
+  ApiSearchAdapter: class ApiSearchAdapter {},
+}))
+
+mock.module('../adapters/bingAdapter.js', () => ({
+  BingSearchAdapter: class BingSearchAdapter {},
+}))
+
+mock.module('../adapters/braveAdapter.js', () => ({
+  BraveSearchAdapter: class BraveSearchAdapter {},
+}))
+
+mock.module('../../../utils/model/providers.js', () => ({
+  isFirstPartyAnthropicBaseUrl: () => isFirstPartyBaseUrl,
+}))
+
+const { createAdapter } = await import('../adapters/index')
+
+const originalWebSearchAdapter = process.env.WEB_SEARCH_ADAPTER
+
+afterEach(() => {
+  isFirstPartyBaseUrl = true
+
+  if (originalWebSearchAdapter === undefined) {
+    delete process.env.WEB_SEARCH_ADAPTER
+  } else {
+    process.env.WEB_SEARCH_ADAPTER = originalWebSearchAdapter
+  }
+})
+
+describe('createAdapter', () => {
+  test('reuses the same instance when the selected backend does not change', () => {
+    process.env.WEB_SEARCH_ADAPTER = 'brave'
+
+    const firstAdapter = createAdapter()
+    const secondAdapter = createAdapter()
+
+    expect(firstAdapter).toBe(secondAdapter)
+    expect(firstAdapter.constructor.name).toBe('BraveSearchAdapter')
+  })
+
+  test('rebuilds the adapter when WEB_SEARCH_ADAPTER changes', () => {
+    process.env.WEB_SEARCH_ADAPTER = 'brave'
+    const braveAdapter = createAdapter()
+
+    process.env.WEB_SEARCH_ADAPTER = 'bing'
+    const bingAdapter = createAdapter()
+
+    expect(bingAdapter).not.toBe(braveAdapter)
+    expect(bingAdapter.constructor.name).toBe('BingSearchAdapter')
+  })
+
+  test('selects the API adapter for first-party Anthropic URLs', () => {
+    delete process.env.WEB_SEARCH_ADAPTER
+    isFirstPartyBaseUrl = true
+
+    expect(createAdapter().constructor.name).toBe('ApiSearchAdapter')
+  })
+
+  test('selects the Bing adapter for third-party Anthropic base URLs', () => {
+    delete process.env.WEB_SEARCH_ADAPTER
+    isFirstPartyBaseUrl = false
+
+    expect(createAdapter().constructor.name).toBe('BingSearchAdapter')
+  })
+})

src/tools/WebSearchTool/__tests__/braveAdapter.extract.test.ts

@@ -0,0 +1,106 @@
+import { describe, expect, test } from 'bun:test'
+import { extractBraveResults } from '../adapters/braveAdapter'
+
+describe('extractBraveResults', () => {
+  test('extracts generic grounding results', () => {
+    const results = extractBraveResults({
+      grounding: {
+        generic: [
+          {
+            title: 'Example Title 1',
+            url: 'https://example.com/page1',
+            snippets: ['First result description'],
+          },
+          {
+            title: 'Example Title 2',
+            url: 'https://example.com/page2',
+            snippets: ['Second result description'],
+          },
+        ],
+      },
+    })
+
+    expect(results).toEqual([
+      {
+        title: 'Example Title 1',
+        url: 'https://example.com/page1',
+        snippet: 'First result description',
+      },
+      {
+        title: 'Example Title 2',
+        url: 'https://example.com/page2',
+        snippet: 'Second result description',
+      },
+    ])
+  })
+
+  test('combines generic, poi, and map grounding results', () => {
+    const results = extractBraveResults({
+      grounding: {
+        generic: [{ title: 'Generic', url: 'https://example.com/generic' }],
+        poi: { title: 'POI', url: 'https://maps.example.com/poi' },
+        map: [{ title: 'Map', url: 'https://maps.example.com/map' }],
+      },
+    })
+
+    expect(results).toEqual([
+      { title: 'Generic', url: 'https://example.com/generic', snippet: undefined },
+      { title: 'POI', url: 'https://maps.example.com/poi', snippet: undefined },
+      { title: 'Map', url: 'https://maps.example.com/map', snippet: undefined },
+    ])
+  })
+
+  test('joins multiple snippets into one summary string', () => {
+    const results = extractBraveResults({
+      grounding: {
+        generic: [
+          {
+            title: 'Joined Snippets',
+            url: 'https://example.com/joined',
+            snippets: ['First snippet.', 'Second snippet.'],
+          },
+        ],
+      },
+    })
+
+    expect(results[0].snippet).toBe('First snippet. Second snippet.')
+  })
+
+  test('skips entries without a title or URL', () => {
+    const results = extractBraveResults({
+      grounding: {
+        generic: [
+          { title: 'Missing URL' },
+          { url: 'https://example.com/missing-title' },
+          { title: 'Valid', url: 'https://example.com/valid' },
+        ],
+      },
+    })
+
+    expect(results).toEqual([
+      { title: 'Valid', url: 'https://example.com/valid', snippet: undefined },
+    ])
+  })
+
+  test('deduplicates repeated URLs across grounding buckets', () => {
+    const results = extractBraveResults({
+      grounding: {
+        generic: [{ title: 'First', url: 'https://example.com/dup' }],
+        poi: { title: 'Second', url: 'https://example.com/dup' },
+        map: [{ title: 'Third', url: 'https://example.com/dup' }],
+      },
+    })
+
+    expect(results).toEqual([
+      { title: 'First', url: 'https://example.com/dup', snippet: undefined },
+    ])
+  })
+
+  test('returns empty array when grounding is missing', () => {
+    expect(extractBraveResults({})).toEqual([])
+  })
+
+  test('returns empty array when grounding arrays are absent', () => {
+    expect(extractBraveResults({ grounding: {} })).toEqual([])
+  })
+})

src/tools/WebSearchTool/__tests__/braveAdapter.integration.ts

@@ -0,0 +1,91 @@
+/**
+ * Integration test for BraveSearchAdapter — hits Brave's LLM context API.
+ *
+ * Usage:
+ *   BRAVE_SEARCH_API_KEY=... bun run src/tools/WebSearchTool/__tests__/braveAdapter.integration.ts
+ *
+ * Optional env vars:
+ *   BRAVE_QUERY  — search query (default: "Claude AI Anthropic")
+ *   BRAVE_API_KEY — fallback key env var
+ */
+
+if (!globalThis.MACRO) {
+  globalThis.MACRO = { VERSION: '0.0.0-test', BUILD_TIME: '0' } as any
+}
+
+import { BraveSearchAdapter } from '../adapters/braveAdapter'
+
+const query = process.env.BRAVE_QUERY || 'Claude AI Anthropic'
+
+async function main() {
+  if (!process.env.BRAVE_SEARCH_API_KEY && !process.env.BRAVE_API_KEY) {
+    console.error(
+      '❌ Missing Brave API key. Set BRAVE_SEARCH_API_KEY or BRAVE_API_KEY.',
+    )
+    process.exit(1)
+  }
+
+  console.log(`\n🔍 Searching Brave for: "${query}"\n`)
+
+  const adapter = new BraveSearchAdapter()
+  const startTime = Date.now()
+
+  const results = await adapter.search(query, {
+    onProgress: p => {
+      if (p.type === 'query_update') {
+        console.log(`  → Query sent: ${p.query}`)
+      }
+      if (p.type === 'search_results_received') {
+        console.log(`  → Received ${p.resultCount} results`)
+      }
+    },
+  })
+
+  const elapsed = Date.now() - startTime
+  console.log(`\n✅ Done in ${elapsed}ms — ${results.length} result(s)\n`)
+
+  if (results.length === 0) {
+    console.log('⚠️  No results returned. Possible causes:')
+    console.log('   - Brave returned no grounding data for the query')
+    console.log('   - Network/firewall issue')
+    console.log('   - Invalid or rate-limited Brave API key\n')
+    process.exit(1)
+  }
+
+  for (const [i, r] of results.entries()) {
+    console.log(`  ${i + 1}. ${r.title}`)
+    console.log(`     ${r.url}`)
+    if (r.snippet) {
+      const snippet = r.snippet.replace(/\n/g, ' ')
+      console.log(
+        `     ${snippet.slice(0, 150)}${snippet.length > 150 ? '…' : ''}`,
+      )
+    }
+    console.log()
+  }
+
+  let passed = true
+  for (const [i, r] of results.entries()) {
+    if (!r.title || typeof r.title !== 'string') {
+      console.error(`❌ Result ${i + 1}: missing or non-string title`, r)
+      passed = false
+    }
+    if (!r.url || !r.url.startsWith('http')) {
+      console.error(`❌ Result ${i + 1}: missing or non-http url`, r)
+      passed = false
+    }
+  }
+
+  if (passed) {
+    console.log('✅ All results have valid structure.\n')
+  } else {
+    process.exit(1)
+  }
+}
+
+if (import.meta.main) {
+  main().catch(e => {
+    console.error('❌ Fatal error:', e)
+    process.exit(1)
+  })
+}

src/tools/WebSearchTool/__tests__/braveAdapter.test.ts

@@ -0,0 +1,273 @@
+import { afterEach, beforeEach, describe, expect, mock, test } from 'bun:test'
+
+const originalBraveSearchApiKey = process.env.BRAVE_SEARCH_API_KEY
+const originalBraveApiKey = process.env.BRAVE_API_KEY
+
+describe('BraveSearchAdapter.search', () => {
+  const createAdapter = async () => {
+    const { BraveSearchAdapter } = await import('../adapters/braveAdapter')
+    return new BraveSearchAdapter()
+  }
+
+  const SAMPLE_RESPONSE = {
+    grounding: {
+      generic: [
+        {
+          title: 'Result One',
+          url: 'https://example.com/result1',
+          snippets: ['Snippet one'],
+        },
+        {
+          title: 'Result Two',
+          url: 'https://example.com/result2',
+          snippets: ['Snippet two'],
+        },
+      ],
+    },
+  }
+
+  beforeEach(() => {
+    process.env.BRAVE_SEARCH_API_KEY = 'test-brave-key'
+    delete process.env.BRAVE_API_KEY
+  })
+
+  afterEach(() => {
+    mock.restore()
+
+    if (originalBraveSearchApiKey === undefined) {
+      delete process.env.BRAVE_SEARCH_API_KEY
+    } else {
+      process.env.BRAVE_SEARCH_API_KEY = originalBraveSearchApiKey
+    }
+
+    if (originalBraveApiKey === undefined) {
+      delete process.env.BRAVE_API_KEY
+    } else {
+      process.env.BRAVE_API_KEY = originalBraveApiKey
+    }
+  })
+
+  test('returns parsed results from Brave LLM context payload', async () => {
+    mock.module('axios', () => ({
+      default: {
+        get: mock(() => Promise.resolve({ data: SAMPLE_RESPONSE })),
+        isCancel: () => false,
+      },
+    }))
+
+    const adapter = await createAdapter()
+    const results = await adapter.search('test query', {})
+
+    expect(results).toHaveLength(2)
+    expect(results[0]).toEqual({
+      title: 'Result One',
+      url: 'https://example.com/result1',
+      snippet: 'Snippet one',
+    })
+    expect(results[1].title).toBe('Result Two')
+  })
+
+  test('calls onProgress with query_update and search_results_received', async () => {
+    mock.module('axios', () => ({
+      default: {
+        get: mock(() => Promise.resolve({ data: SAMPLE_RESPONSE })),
+        isCancel: () => false,
+      },
+    }))
+
+    const progressCalls: any[] = []
+    const onProgress = (p: any) => progressCalls.push(p)
+
+    const adapter = await createAdapter()
+    await adapter.search('test', { onProgress })
+
+    expect(progressCalls).toHaveLength(2)
+    expect(progressCalls[0]).toEqual({
+      type: 'query_update',
+      query: 'test',
+    })
+    expect(progressCalls[1]).toEqual({
+      type: 'search_results_received',
+      resultCount: 2,
+      query: 'test',
+    })
+  })
+
+  test('filters results by allowedDomains', async () => {
+    const mixedResponse = {
+      grounding: {
+        generic: [
+          { title: 'Allowed', url: 'https://allowed.com/a' },
+          { title: 'Blocked', url: 'https://blocked.com/b' },
+        ],
+      },
+    }
+
+    mock.module('axios', () => ({
+      default: {
+        get: mock(() => Promise.resolve({ data: mixedResponse })),
+        isCancel: () => false,
+      },
+    }))
+
+    const adapter = await createAdapter()
+    const results = await adapter.search('test', {
+      allowedDomains: ['allowed.com'],
+    })
+
+    expect(results).toHaveLength(1)
+    expect(results[0].url).toBe('https://allowed.com/a')
+  })
+
+  test('filters results by blockedDomains', async () => {
+    const mixedResponse = {
+      grounding: {
+        generic: [
+          { title: 'Good', url: 'https://good.com/a' },
+          { title: 'Spam', url: 'https://spam.com/b' },
+        ],
+      },
+    }
+
+    mock.module('axios', () => ({
+      default: {
+        get: mock(() => Promise.resolve({ data: mixedResponse })),
+        isCancel: () => false,
+      },
+    }))
+
+    const adapter = await createAdapter()
+    const results = await adapter.search('test', {
+      blockedDomains: ['spam.com'],
+    })
+
+    expect(results).toHaveLength(1)
+    expect(results[0].url).toBe('https://good.com/a')
+  })
+
+  test('filters subdomains with allowedDomains', async () => {
+    const response = {
+      grounding: {
+        generic: [
+          { title: 'Subdomain', url: 'https://docs.example.com/page' },
+          { title: 'Other', url: 'https://other.com/page' },
+        ],
+      },
+    }
+
+    mock.module('axios', () => ({
+      default: {
+        get: mock(() => Promise.resolve({ data: response })),
+        isCancel: () => false,
+      },
+    }))
+
+    const adapter = await createAdapter()
+    const results = await adapter.search('test', {
+      allowedDomains: ['example.com'],
+    })
+
+    expect(results).toHaveLength(1)
+    expect(results[0].url).toBe('https://docs.example.com/page')
+  })
+
+  test('throws AbortError when signal is already aborted', async () => {
+    mock.module('axios', () => ({
+      default: {
+        get: mock((_url: string, config: any) => {
+          if (config?.signal?.aborted) {
+            const err = new Error('canceled')
+            ;(err as any).__CANCEL__ = true
+            return Promise.reject(err)
+          }
+          return Promise.resolve({ data: SAMPLE_RESPONSE })
+        }),
+        isCancel: (e: any) => e?.__CANCEL__ === true,
+      },
+    }))
+
+    const adapter = await createAdapter()
+    const controller = new AbortController()
+    controller.abort()
+
+    const { AbortError } = await import('../../../utils/errors')
+    await expect(
+      adapter.search('test', { signal: controller.signal }),
+    ).rejects.toThrow(AbortError)
+  })
+
+  test('re-throws non-abort axios errors', async () => {
+    const networkError = new Error('Network error')
+    mock.module('axios', () => ({
+      default: {
+        get: mock(() => Promise.reject(networkError)),
+        isCancel: () => false,
+      },
+    }))
+
+    const adapter = await createAdapter()
+    await expect(adapter.search('test', {})).rejects.toThrow('Network error')
+  })
+
+  test('sends the documented HTTPS endpoint with query params and auth header', async () => {
+    const axiosGet = mock(() => Promise.resolve({ data: SAMPLE_RESPONSE }))
+    mock.module('axios', () => ({
+      default: {
+        get: axiosGet,
+        isCancel: () => false,
+      },
+    }))
+
+    const adapter = await createAdapter()
+    await adapter.search('hello world & special=chars', {})
+
+    expect(axiosGet.mock.calls).toHaveLength(1)
+    expect((axiosGet.mock.calls as any[][])[0][0]).toBe(
+      'https://api.search.brave.com/res/v1/llm/context',
+    )
+    expect((axiosGet.mock.calls as any[][])[0][1]).toMatchObject({
+      params: { q: 'hello world & special=chars' },
+      headers: {
+        Accept: 'application/json',
+        'X-Subscription-Token': 'test-brave-key',
+      },
+    })
+  })
+
+  test('accepts BRAVE_API_KEY as a fallback env var', async () => {
+    delete process.env.BRAVE_SEARCH_API_KEY
+    process.env.BRAVE_API_KEY = 'fallback-key'
+
+    const axiosGet = mock(() => Promise.resolve({ data: SAMPLE_RESPONSE }))
+    mock.module('axios', () => ({
+      default: {
+        get: axiosGet,
+        isCancel: () => false,
+      },
+    }))
+
+    const adapter = await createAdapter()
+    await adapter.search('test', {})
+
+    expect((axiosGet.mock.calls as any[][])[0][1].headers).toMatchObject({
+      'X-Subscription-Token': 'fallback-key',
+    })
+  })
+
+  test('throws when no Brave API key is configured', async () => {
+    delete process.env.BRAVE_SEARCH_API_KEY
+    delete process.env.BRAVE_API_KEY
+
+    mock.module('axios', () => ({
+      default: {
+        get: mock(() => Promise.resolve({ data: SAMPLE_RESPONSE })),
+        isCancel: () => false,
+      },
+    }))
+
+    const adapter = await createAdapter()
+    await expect(adapter.search('test', {})).rejects.toThrow(
+      'BraveSearchAdapter requires BRAVE_SEARCH_API_KEY or BRAVE_API_KEY',
+    )
+  })
+})

src/tools/WebSearchTool/adapters/braveAdapter.ts

@@ -0,0 +1,169 @@
+/**
+ * Brave-based search adapter — fetches Brave's LLM context API and maps the
+ * grounding payload into SearchResult objects.
+ */
+
+import axios from 'axios'
+import { AbortError } from '../../../utils/errors.js'
+import type { SearchResult, SearchOptions, WebSearchAdapter } from './types.js'
+
+const FETCH_TIMEOUT_MS = 30_000
+const BRAVE_LLM_CONTEXT_URL = 'https://api.search.brave.com/res/v1/llm/context'
+const BRAVE_API_KEY_ENV_VARS = ['BRAVE_SEARCH_API_KEY', 'BRAVE_API_KEY'] as const
+
+interface BraveGroundingResult {
+  title?: string
+  url?: string
+  snippets?: string[]
+}
+
+interface BraveSearchResponse {
+  grounding?: {
+    generic?: BraveGroundingResult[]
+    map?: BraveGroundingResult[]
+    poi?: BraveGroundingResult | null
+  }
+}
+
+export class BraveSearchAdapter implements WebSearchAdapter {
+  async search(
+    query: string,
+    options: SearchOptions,
+  ): Promise<SearchResult[]> {
+    const { signal, onProgress, allowedDomains, blockedDomains } = options
+
+    if (signal?.aborted) {
+      throw new AbortError()
+    }
+
+    onProgress?.({ type: 'query_update', query })
+
+    const abortController = new AbortController()
+    if (signal) {
+      signal.addEventListener('abort', () => abortController.abort(), {
+        once: true,
+      })
+    }
+
+    let payload: BraveSearchResponse
+    try {
+      const response = await axios.get<BraveSearchResponse>(
+        BRAVE_LLM_CONTEXT_URL,
+        {
+          signal: abortController.signal,
+          timeout: FETCH_TIMEOUT_MS,
+          responseType: 'json',
+          headers: {
+            Accept: 'application/json',
+            'X-Subscription-Token': getBraveApiKey(),
+          },
+          params: { q: query },
+        },
+      )
+      payload = response.data
+    } catch (e) {
+      if (axios.isCancel(e) || abortController.signal.aborted) {
+        throw new AbortError()
+      }
+      throw e
+    }
+
+    if (abortController.signal.aborted) {
+      throw new AbortError()
+    }
+
+    const rawResults = extractBraveResults(payload)
+    const results = rawResults.filter(r => {
+      try {
+        const hostname = new URL(r.url).hostname
+        if (
+          allowedDomains?.length &&
+          !allowedDomains.some(
+            d => hostname === d || hostname.endsWith('.' + d),
+          )
+        ) {
+          return false
+        }
+        if (
+          blockedDomains?.length &&
+          blockedDomains.some(d => hostname === d || hostname.endsWith('.' + d))
+        ) {
+          return false
+        }
+      } catch {
+        return false
+      }
+      return true
+    })
+
+    onProgress?.({
+      type: 'search_results_received',
+      resultCount: results.length,
+      query,
+    })
+
+    return results
+  }
+}
+
+export function extractBraveResults(
+  payload: BraveSearchResponse,
+): SearchResult[] {
+  const grounding = payload.grounding
+  if (!grounding) {
+    return []
+  }
+
+  const entries = [
+    ...(Array.isArray(grounding.generic) ? grounding.generic : []),
+    ...(grounding.poi ? [grounding.poi] : []),
+    ...(Array.isArray(grounding.map) ? grounding.map : []),
+  ]
+
+  const seenUrls = new Set<string>()
+  const results: SearchResult[] = []
+
+  for (const entry of entries) {
+    if (!entry?.url || !entry.title || seenUrls.has(entry.url)) {
+      continue
+    }
+
+    seenUrls.add(entry.url)
+    results.push({
+      title: entry.title,
+      url: entry.url,
+      snippet: normalizeSnippet(entry.snippets),
+    })
+  }
+
+  return results
+}
+
+function normalizeSnippet(snippets: string[] | undefined): string | undefined {
+  if (!Array.isArray(snippets)) {
+    return undefined
+  }
+
+  const normalized = snippets
+    .map(snippet => snippet.trim())
+    .filter(snippet => snippet.length > 0)
+
+  if (normalized.length === 0) {
+    return undefined
+  }
+
+  return normalized.join(' ')
+}
+
+function getBraveApiKey(): string {
+  for (const envVar of BRAVE_API_KEY_ENV_VARS) {
+    const value = process.env[envVar]?.trim()
+    if (value) {
+      return value
+    }
+  }
+
+  throw new Error(
+    'BraveSearchAdapter requires BRAVE_SEARCH_API_KEY or BRAVE_API_KEY',
+  )
+}

src/tools/WebSearchTool/adapters/index.ts

@@ -6,36 +6,42 @@
 import { isFirstPartyAnthropicBaseUrl } from '../../../utils/model/providers.js'
 import { ApiSearchAdapter } from './apiAdapter.js'
 import { BingSearchAdapter } from './bingAdapter.js'
+import { BraveSearchAdapter } from './braveAdapter.js'
 import type { WebSearchAdapter } from './types.js'
 
-export type { SearchResult, SearchOptions, SearchProgress, WebSearchAdapter } from './types.js'
+export type {
+  SearchResult,
+  SearchOptions,
+  SearchProgress,
+  WebSearchAdapter,
+} from './types.js'
 
 let cachedAdapter: WebSearchAdapter | null = null
+let cachedAdapterKey: 'api' | 'bing' | 'brave' | null = null
 
 export function createAdapter(): WebSearchAdapter {
-	// 直接用 bing 适配器，跳过 API 适配器的选择逻辑
-  return new BingSearchAdapter()
-//   // Adapter is stateless — safe to reuse across calls within a session
-//   if (cachedAdapter) return cachedAdapter
+  const envAdapter = process.env.WEB_SEARCH_ADAPTER
+  const adapterKey =
+    envAdapter === 'api' || envAdapter === 'bing' || envAdapter === 'brave'
+      ? envAdapter
+      : isFirstPartyAnthropicBaseUrl()
+        ? 'api'
+        : 'bing'
 
-//   // Env override: WEB_SEARCH_ADAPTER=api|bing forces specific backend
-//   const envAdapter = process.env.WEB_SEARCH_ADAPTER
-//   if (envAdapter === 'api') {
-//     cachedAdapter = new ApiSearchAdapter()
-//     return cachedAdapter
-//   }
-//   if (envAdapter === 'bing') {
-//     cachedAdapter = new BingSearchAdapter()
-//     return cachedAdapter
-//   }
+  if (cachedAdapter && cachedAdapterKey === adapterKey) return cachedAdapter
 
-//   // Anthropic official URL → API server-side search
-//   if (isFirstPartyAnthropicBaseUrl()) {
-//     cachedAdapter = new ApiSearchAdapter()
-//     return cachedAdapter
-//   }
+  if (adapterKey === 'api') {
+    cachedAdapter = new ApiSearchAdapter()
+    cachedAdapterKey = 'api'
+    return cachedAdapter
+  }
+  if (adapterKey === 'bing') {
+    cachedAdapter = new BingSearchAdapter()
+    cachedAdapterKey = 'bing'
+    return cachedAdapter
+  }
 
-//   // Third-party proxies / non-Anthropic endpoints → Bing fallback
-//   cachedAdapter = new BingSearchAdapter()
-//   return cachedAdapter
+  cachedAdapter = new BraveSearchAdapter()
+  cachedAdapterKey = 'brave'
+  return cachedAdapter
 }