diff --git a/config/coverage.md b/config/coverage.md
index c3c23949..93431cb5 100644
--- a/config/coverage.md
+++ b/config/coverage.md
@@ -390,6 +390,46 @@ Vitest 会将所有文件（包括匹配 glob 模式的文件）计入全局覆
 
 处理代码覆盖率结果时使用的并发限制。
 
+## coverage.instrumenter <Version type="experimental">4.1.5</Version> {#coverage-instrumenter}
+
+- **Type:** `(options: InstrumenterOptions) => CoverageInstrumenter`
+- **Available for providers:** `'istanbul'`
+
+Factory for a custom instrumenter to use in place of the default `istanbul-lib-instrument`. Vitest calls the factory once during initialization and reuses the returned instrumenter for every file. The rest of the Istanbul pipeline (collection, merging, reporting) is unchanged.
+
+The factory receives an `InstrumenterOptions` object with Vitest's runtime coverage settings, and must return an object implementing the `CoverageInstrumenter` interface. Both types are exported from `vitest/node`.
+
+<!-- eslint-skip -->
+```ts
+interface InstrumenterOptions {
+  coverageVariable: string
+  coverageGlobalScope: string
+  coverageGlobalScopeFunc: boolean
+  ignoreClassMethods: string[]
+}
+
+interface CoverageInstrumenter {
+  instrumentSync: (code: string, filename: string, inputSourceMap?: any) => string
+  lastSourceMap: () => any
+  lastFileCoverage: () => any
+}
+```
+
+<!-- eslint-skip -->
+```ts
+import { defineConfig } from 'vitest/config'
+import { createInstrumenter } from '@vitest/some-custom-instrumenter'
+
+export default defineConfig({
+  test: {
+    coverage: {
+      provider: 'istanbul',
+      instrumenter: options => createInstrumenter(options),
+    }
+  }
+})
+```
+
 ## coverage.customProviderModule
 
 - **类型:** `string`
diff --git a/config/reporters.md b/config/reporters.md
index f9f8f018..a9d74af6 100644
--- a/config/reporters.md
+++ b/config/reporters.md
@@ -42,7 +42,7 @@ type ConfigReporter = string | Reporter | [string, object?]
 - [`tap-flat`](/guide/reporters#tap-flat-reporter)
 - [`hanging-process`](/guide/reporters#hanging-process-reporter)
 - [`github-actions`](/guide/reporters#github-actions-reporter)
-- [`agent`](/guide/reporters#agent-reporter)
+- [`minimal`](/guide/reporters#minimal-reporter) (aliased as `agent`)
 - [`blob`](/guide/reporters#blob-reporter)
 
 ## 示例 {#example}
diff --git a/guide/cli-generated.md b/guide/cli-generated.md
index 727ab561..118ccba7 100644
--- a/guide/cli-generated.md
+++ b/guide/cli-generated.md
@@ -102,7 +102,11 @@
 - **命令行终端:** `--reporter <name>`
 - **配置:** [reporters](/config/reporters)
 
+<<<<<<< HEAD
 指定报告器（default、agent、blob、verbose、dot、json、tap、tap-flat、junit、tree、hanging-process、github-actions）
+=======
+Specify reporters (default, agent, minimal, blob, verbose, dot, json, tap, tap-flat, junit, tree, hanging-process, github-actions)
+>>>>>>> 2aae193f0f78a1bf6e7987cb80dc9950fb739a94
 
 ### outputFile
 
diff --git a/guide/reporters.md b/guide/reporters.md
index b6d7ed23..99a38bf7 100644
--- a/guide/reporters.md
+++ b/guide/reporters.md
@@ -100,7 +100,7 @@ export default defineConfig({
 默认情况下（即如果没有指定报告器），Vitest 会在底部显示运行测试的摘要及其状态。一旦测试套件通过，其状态将被报告在摘要的顶部。
 <!-- TODO: translation -->
 ::: tip
-When Vitest detects it is running inside an AI coding agent, the [`agent`](#agent-reporter) reporter is used instead to reduce output and minimize token usage. You can override this by explicitly configuring the [`reporters`](/config/reporters) option.
+When Vitest detects it is running inside an AI coding agent, the [`minimal`](#minimal-reporter) reporter is used instead to reduce output and minimize token usage. You can override this by explicitly configuring the [`reporters`](/config/reporters) option.
 :::
 
 我们可以通过配置报告器来禁用摘要：
@@ -670,21 +670,24 @@ export default defineConfig({
 })
 ```
 
-### Agent Reporter
+### Minimal Reporter
 
-Outputs a minimal report optimized for AI coding assistants and LLM-based workflows. Only failed tests and their error messages are displayed. Console logs from passing tests and the summary section are suppressed to reduce token usage.
+- **Alias:** `agent`
 
-This reporter is automatically enabled when no `reporters` option is configured and Vitest detects it is running inside an AI coding agent. If you configure custom reporters, you can explicitly add `agent`:
+Outputs a minimal report containing only failed tests and their error messages. Console logs from passing tests and the summary section are also suppressed.
+
+::: tip Agent Reporter
+This reporter is well optimized for AI coding assistants and LLM-based workflows to reduce token usage. It is automatically enabled when no `reporters` option is configured and Vitest detects it is running inside an AI coding agent. If you configure custom reporters, you can explicitly add `minimal` or `agent`:
 
 :::code-group
 ```bash [CLI]
-npx vitest --reporter=agent
+npx vitest --reporter=minimal
 ```
 
 ```ts [vitest.config.ts]
 export default defineConfig({
   test: {
-    reporters: ['agent']
+    reporters: ['minimal']
   },
 })
 ```