# Resume a stopped investigation

**POST** `/v1/investigations/{investigationId}/resume`

**Operation ID**: `resume`
**Summary**: Resume a stopped investigation
Resumes a stopped (resumable) investigation in place. A non-blank message is appended as a new user turn; an empty body continues the agent with no added input.

## Tags
- Investigations
## Parameters

- **investigationId** (required) - path
  - Type: string

## Request Body

**Content-Type**: `application/json`

**Schema**: `ResumeInvestigationRequest`

## Responses

### 202

Resume requested

### 401

Unauthorized

### 404

Investigation not found

### 409

Investigation is not resumable