diff --git a/adapters/common/__tests__/message-buffer.test.ts b/adapters/common/__tests__/message-buffer.test.ts
index 9e8a037b..62d4991c 100644
--- a/adapters/common/__tests__/message-buffer.test.ts
+++ b/adapters/common/__tests__/message-buffer.test.ts
@@ -1,4 +1,4 @@
-import { describe, it, expect, beforeEach } from 'bun:test'
+import { describe, it, expect } from 'bun:test'
 import { MessageBuffer } from '../message-buffer.js'
 
 describe('MessageBuffer', () => {
diff --git a/adapters/feishu/__tests__/streaming-card.test.ts b/adapters/feishu/__tests__/streaming-card.test.ts
index 2cec35df..beaafc4f 100644
--- a/adapters/feishu/__tests__/streaming-card.test.ts
+++ b/adapters/feishu/__tests__/streaming-card.test.ts
@@ -11,7 +11,7 @@
  * - 纯 patch fallback 路径
  */
 
-import { describe, it, expect, beforeEach } from 'bun:test'
+import { describe, it, expect } from 'bun:test'
 import {
   StreamingCard,
   buildInitialStreamingCard,
diff --git a/adapters/feishu/index.ts b/adapters/feishu/index.ts
index e332cc8b..566fe338 100644
--- a/adapters/feishu/index.ts
+++ b/adapters/feishu/index.ts
@@ -9,7 +9,6 @@
 
 import * as Lark from '@larksuiteoapi/node-sdk'
 import * as path from 'node:path'
-import * as fs from 'node:fs/promises'
 import { WsBridge, type ServerMessage, type AttachmentRef } from '../common/ws-bridge.js'
 import { MessageDedup } from '../common/message-dedup.js'
 import { StreamingCard } from './streaming-card.js'
@@ -19,7 +18,6 @@ import {
   formatImHelp,
   formatImStatus,
   formatPermissionRequest,
-  splitMessage,
 } from '../common/format.js'
 import {
   formatPermissionDecisionStatus,
@@ -31,7 +29,6 @@ import { SessionStore } from '../common/session-store.js'
 import { AdapterHttpClient, type RecentProject } from '../common/http-client.js'
 import { restoreStoredSessionBinding } from '../common/session-recovery.js'
 import { isAllowedUser, tryPair } from '../common/pairing.js'
-import { optimizeMarkdownForFeishu } from './markdown-style.js'
 import { extractInboundPayload } from './extract-payload.js'
 import { FeishuMediaService } from './media.js'
 import { AttachmentStore } from '../common/attachment/attachment-store.js'
diff --git a/adapters/telegram/__tests__/telegram.test.ts b/adapters/telegram/__tests__/telegram.test.ts
index 16b97ec8..2b3f949c 100644
--- a/adapters/telegram/__tests__/telegram.test.ts
+++ b/adapters/telegram/__tests__/telegram.test.ts
@@ -1,5 +1,5 @@
 import { describe, it, expect } from 'bun:test'
-import { splitMessage, formatPermissionRequest, truncateInput, escapeMarkdownV2 } from '../../common/format.js'
+import { splitMessage, formatPermissionRequest, escapeMarkdownV2 } from '../../common/format.js'
 import { parsePermitCallbackData } from '../../common/permission.js'
 import {
   buildTelegramThinkingUpdate,
diff --git a/adapters/whatsapp/index.ts b/adapters/whatsapp/index.ts
index 47795e4b..42e7ece6 100644
--- a/adapters/whatsapp/index.ts
+++ b/adapters/whatsapp/index.ts
@@ -5,7 +5,6 @@
  * then run: bun run whatsapp
  */
 
-import * as fs from 'node:fs/promises'
 import * as path from 'node:path'
 import {
   normalizeMessageContent,
diff --git a/src/hooks/useMergedTools.ts b/src/hooks/useMergedTools.ts
index 48b1deec..368db61f 100644
--- a/src/hooks/useMergedTools.ts
+++ b/src/hooks/useMergedTools.ts
@@ -2,7 +2,6 @@
 import { useMemo } from 'react'
 import type { Tools, ToolPermissionContext } from '../Tool.js'
 import { assembleToolPool } from '../tools.js'
-import { useAppState } from '../state/AppState.js'
 import { mergeAndFilterTools } from '../utils/toolPool.js'
 
 /**
diff --git a/src/query.ts b/src/query.ts
index b615aab2..a4badea9 100644
--- a/src/query.ts
+++ b/src/query.ts
@@ -107,7 +107,6 @@ import type { Terminal, Continue } from './query/transitions.js'
 import { feature } from 'bun:bundle'
 import {
   getCurrentTurnTokenBudget,
-  getSessionId,
   getTurnOutputTokens,
   incrementBudgetContinuationCount,
 } from './bootstrap/state.js'
diff --git a/src/server/__tests__/cron-scheduler.test.ts b/src/server/__tests__/cron-scheduler.test.ts
index 4662fb05..70ded18b 100644
--- a/src/server/__tests__/cron-scheduler.test.ts
+++ b/src/server/__tests__/cron-scheduler.test.ts
@@ -2,7 +2,7 @@
  * Tests for CronScheduler — cron matching, task execution, log storage, and API endpoints
  */
 
-import { describe, it, expect, beforeEach, afterEach, mock, spyOn } from 'bun:test'
+import { describe, it, expect, beforeEach, afterEach } from 'bun:test'
 import { Database } from 'bun:sqlite'
 import * as fs from 'fs/promises'
 import * as path from 'path'
@@ -14,7 +14,7 @@ import {
   CronScheduler,
   type TaskRun,
 } from '../services/cronScheduler.js'
-import { CronService, type CronTask } from '../services/cronService.js'
+import { CronService } from '../services/cronService.js'
 import { resetScheduledRunReadModelForTests } from '../services/localIndex/scheduledRunReadModel.js'
 
 // ─── Test helpers ───────────────────────────────────────────────────────────
diff --git a/src/server/__tests__/team-watcher.test.ts b/src/server/__tests__/team-watcher.test.ts
index 9cc6949e..4a519452 100644
--- a/src/server/__tests__/team-watcher.test.ts
+++ b/src/server/__tests__/team-watcher.test.ts
@@ -4,10 +4,8 @@
 
 import { describe, it, expect, beforeEach, afterEach, mock } from 'bun:test'
 import * as fs from 'node:fs/promises'
-import * as fsSyn from 'node:fs'
 import * as path from 'node:path'
 import * as os from 'node:os'
-import type { TeamMemberStatus } from '../ws/events.js'
 
 // ============================================================================
 // Test helpers
diff --git a/src/server/api/__tests__/localFile.test.ts b/src/server/api/__tests__/localFile.test.ts
index 8e17a49a..667a2459 100644
--- a/src/server/api/__tests__/localFile.test.ts
+++ b/src/server/api/__tests__/localFile.test.ts
@@ -7,7 +7,7 @@ import {
   symlinkSync,
   writeFileSync,
 } from 'node:fs'
-import { tmpdir, homedir } from 'node:os'
+import { homedir } from 'node:os'
 import * as path from 'node:path'
 import { handleLocalFile, reconstructAbsolutePath } from '../localFile'
 import { isAllowedFilesystemPath } from '../filesystem'
diff --git a/src/server/api/mcp.ts b/src/server/api/mcp.ts
index 69012f33..8d49ed83 100644
--- a/src/server/api/mcp.ts
+++ b/src/server/api/mcp.ts
@@ -12,7 +12,6 @@ import {
   addMcpConfig,
   findProjectMcpConfigPath,
   getAllMcpConfigs,
-  getClaudeCodeMcpConfigs,
   getMcpConfigByName,
   isMcpServerDisabled,
   projectDirDeclaresMcpServers,
diff --git a/src/server/services/localIndex/reconciliationWatcher.ts b/src/server/services/localIndex/reconciliationWatcher.ts
index a5399892..4debc6bf 100644
--- a/src/server/services/localIndex/reconciliationWatcher.ts
+++ b/src/server/services/localIndex/reconciliationWatcher.ts
@@ -1,6 +1,6 @@
 import { watch, type FSWatcher } from 'node:fs'
 import { readdir, stat } from 'node:fs/promises'
-import { basename, dirname, join, relative, resolve, sep } from 'node:path'
+import { dirname, join, relative, resolve, sep } from 'node:path'
 
 export type ReconciliationBatch = {
   paths: string[]
diff --git a/src/server/services/localIndex/sessionProjector.ts b/src/server/services/localIndex/sessionProjector.ts
index d70e1ff1..aa41d1ab 100644
--- a/src/server/services/localIndex/sessionProjector.ts
+++ b/src/server/services/localIndex/sessionProjector.ts
@@ -24,7 +24,6 @@ import {
   reduceTranscriptWithLocators,
 } from './transcriptReducer.js'
 import type {
-  SessionListSummary,
   TranscriptChunk,
   TranscriptEntryLocator,
   TranscriptProjection,
diff --git a/src/server/services/providerService.ts b/src/server/services/providerService.ts
index c375889c..de673577 100644
--- a/src/server/services/providerService.ts
+++ b/src/server/services/providerService.ts
@@ -16,7 +16,7 @@ import { anthropicToOpenaiChat } from '../proxy/transform/anthropicToOpenaiChat.
 import { anthropicToOpenaiResponses } from '../proxy/transform/anthropicToOpenaiResponses.js'
 import { openaiChatToAnthropic } from '../proxy/transform/openaiChatToAnthropic.js'
 import { openaiResponsesToAnthropic } from '../proxy/transform/openaiResponsesToAnthropic.js'
-import type { AnthropicRequest, AnthropicResponse } from '../proxy/transform/types.js'
+import type { AnthropicRequest } from '../proxy/transform/types.js'
 import {
   OPENAI_OFFICIAL_PROVIDER,
   isOpenAIOfficialProviderId,
diff --git a/src/services/mcp/config.ts b/src/services/mcp/config.ts
index ebe83b65..04855f32 100644
--- a/src/services/mcp/config.ts
+++ b/src/services/mcp/config.ts
@@ -1,4 +1,3 @@
-import { feature } from 'bun:bundle'
 import { chmod, open, rename, stat, unlink } from 'fs/promises'
 import mapValues from 'lodash-es/mapValues.js'
 import memoize from 'lodash-es/memoize.js'
diff --git a/src/utils/attachments.ts b/src/utils/attachments.ts
index 556defeb..953e0a32 100644
--- a/src/utils/attachments.ts
+++ b/src/utils/attachments.ts
@@ -37,9 +37,7 @@ import {
 import { getPlanFilePath, getPlan } from './plans.js'
 import { getConnectedIdeName } from './ide.js'
 import {
-  filterInjectedMemoryFiles,
   getManagedAndUserConditionalRules,
-  getMemoryFiles,
   getMemoryFilesForNestedDirectory,
   getConditionalRulesForCwdLevelDirectory,
   type MemoryFileInfo,
@@ -72,12 +70,6 @@ import type {
 } from '@anthropic-ai/sdk/resources/messages.mjs'
 import { maybeResizeAndDownsampleImageBlock } from './imageResizer.js'
 import type { PastedContent } from './config.js'
-import { getGlobalConfig } from './config.js'
-import {
-  getDefaultSonnetModel,
-  getDefaultHaikuModel,
-  getDefaultOpusModel,
-} from './model/model.js'
 import type { ReadResourceResult } from '@modelcontextprotocol/sdk/types.js'
 import { getSkillToolCommands, getMcpSkillCommands } from '../commands.js'
 import type { Command } from '../types/command.js'
diff --git a/src/utils/stats.ts b/src/utils/stats.ts
index 785eca4a..01ac42cf 100644
--- a/src/utils/stats.ts
+++ b/src/utils/stats.ts
@@ -1,6 +1,6 @@
 import { feature } from 'bun:bundle'
 import { open } from 'fs/promises'
-import { basename, dirname, join, sep } from 'path'
+import { basename, join, sep } from 'path'
 import type { ModelUsage } from 'src/entrypoints/agentSdkTypes.js'
 import type { Entry, TranscriptMessage } from '../types/logs.js'
 import { logForDebugging } from './debug.js'