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# Capture an eval case from a run

POST https://api.runtype.com/v1/eval/suites/{id}/cases/from-execution
Content-Type: application/json

Fork an agent execution into a test case: freeze its conversation history up to a fork point, attach every recorded tool result as an editable mock, and save it with origin "saved_from_run". Capture only — reads the run and writes a case; it never re-executes anything. Restricted to agent executions the caller owns.

Reference: https://docs.runtype.com/api-reference/runtype-api/evals/capture-an-eval-case-from-a-run

## Authentication

- `Authorization` header (bearer token, required) — API key or Clerk session token

## Servers

- `https://api.runtype.com` (Production, default)
- `https://api.runtype-staging.com` (Staging)

## Request

### Path parameters

- `id` (string, required)

### Body (application/json)

This endpoint expects an object.

- `executionId` (string, required) — Runtime execution id (from a log/trace row) of the agent run to fork from.
- `expected` (V1EvalSuitesIdCasesFromExecutionPostRequestBodyContentApplicationJsonSchemaExpected, optional) — What "good" looks like for the graded next step (optional; e.g. pre-filled from a 👍).
- `forkMessageIndex` (integer, optional) — Where to fork the frozen history (index into the reconstructed message array). Defaults to just before the last recorded tool-call action, so the run’s final action is the graded next step.
- `name` (string, optional) — Case name. Defaults to "Saved from run \<executionId>".
- `notes` (string, optional)

## Response

### 201

Case captured

- `case` (EvalCase, required)
- `replayable` (boolean, required) — True when every recorded tool output was captured in full. False when any output was truncated at capture — the case still saves, but tool outputs are partial ("⚠ tool outputs weren’t fully captured").

## Errors

### 400 Bad Request Error

Invalid request

- `error` (string, required)
- `code` (string, optional) — Stable error code. `insufficient_scope` marks an API key that lacks a scope this request needs.
- `details` (list of ErrorDetailsItems, optional)
- `requiredScopes` (list of string, optional) — On `insufficient_scope`: every API key scope this request needs.

### 401 Unauthorized Error

Unauthorized

- `error` (string, required)
- `code` (string, optional) — Stable error code. `insufficient_scope` marks an API key that lacks a scope this request needs.
- `details` (list of ErrorDetailsItems, optional)
- `requiredScopes` (list of string, optional) — On `insufficient_scope`: every API key scope this request needs.

### 403 Forbidden Error

Forbidden

- `error` (string, required)
- `code` (string, optional) — Stable error code. `insufficient_scope` marks an API key that lacks a scope this request needs.
- `details` (list of ErrorDetailsItems, optional)
- `requiredScopes` (list of string, optional) — On `insufficient_scope`: every API key scope this request needs.

### 404 Not Found Error

Not found

- `error` (string, required)
- `code` (string, optional) — Stable error code. `insufficient_scope` marks an API key that lacks a scope this request needs.
- `details` (list of ErrorDetailsItems, optional)
- `requiredScopes` (list of string, optional) — On `insufficient_scope`: every API key scope this request needs.

### 500 Internal Server Error

Internal server error

- `error` (string, required)
- `code` (string, optional) — Stable error code. `insufficient_scope` marks an API key that lacks a scope this request needs.
- `details` (list of ErrorDetailsItems, optional)
- `requiredScopes` (list of string, optional) — On `insufficient_scope`: every API key scope this request needs.

## Types

### V1EvalSuitesIdCasesFromExecutionPostRequestBodyContentApplicationJsonSchemaExpected

What "good" looks like for the graded next step (optional; e.g. pre-filled from a 👍).

- `facts` (list of string, optional)
- `json` (any, optional)
- `text` (string, optional)

### EvalCase

- `createdAt` (string, required)
- `enabled` (boolean, required)
- `graders` (list of any, required, nullable) — Per-case graders that REPLACE the suite graders for this case, or null when the case uses the suite graders.
- `id` (string, required)
- `name` (string, required)
- `notes` (string, required, nullable)
- `origin` (string, required)
- `suiteId` (string, required)
- `updatedAt` (string, required)
- `expected` (any, optional)
- `input` (any, optional) — \{ variables?, messages?, toolMocks?, endUser?, tenant?, record? } — what the case feeds the target, the identity it runs as, and the record it runs on.

### ErrorDetailsItems

- `message` (string, required)
- `code` (string, optional) — Stable Runtype validation code (e.g. MISSING_REQUIRED_FIELD, INVALID_ENUM).
- `path` (string, optional) — Dotted JSON path to the offending field.
- `suggestion` (string, optional) — Actionable hint (allowed values, accepted range, …).

## Examples

**Request**

```json
{
  "executionId": "string"
}
```

**Response**

```json
{
  "case": {
    "createdAt": "string",
    "enabled": true,
    "graders": [
      null
    ],
    "id": "string",
    "name": "string",
    "notes": "string",
    "origin": "string",
    "suiteId": "string",
    "updatedAt": "string",
    "input": null
  },
  "replayable": true
}
```

**SDK Code**

```python
import requests

url = "https://api.runtype.com/v1/eval/suites/id/cases/from-execution"

payload = { "executionId": "string" }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.json())
```

```javascript
const url = 'https://api.runtype.com/v1/eval/suites/id/cases/from-execution';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: '{"executionId":"string"}'
};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go
package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.runtype.com/v1/eval/suites/id/cases/from-execution"

	payload := strings.NewReader("{\n  \"executionId\": \"string\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(res)
	fmt.Println(string(body))

}
```

```ruby
require 'uri'
require 'net/http'

url = URI("https://api.runtype.com/v1/eval/suites/id/cases/from-execution")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"executionId\": \"string\"\n}"

response = http.request(request)
puts response.read_body
```

```java
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.post("https://api.runtype.com/v1/eval/suites/id/cases/from-execution")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"executionId\": \"string\"\n}")
  .asString();
```

```php
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.runtype.com/v1/eval/suites/id/cases/from-execution', [
  'body' => '{
  "executionId": "string"
}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

echo $response->getBody();
```

```csharp
using RestSharp;

var client = new RestClient("https://api.runtype.com/v1/eval/suites/id/cases/from-execution");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"executionId\": \"string\"\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = [
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = ["executionId": "string"] as [String : Any]

let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

let request = NSMutableURLRequest(url: NSURL(string: "https://api.runtype.com/v1/eval/suites/id/cases/from-execution")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
request.allHTTPHeaderFields = headers
request.httpBody = postData as Data

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```