# nitro-cli describe-eif
<a name="cmd-nitro-describe-eif"></a>

Describes the specified enclave image file (`.eif`). The output is a static description of the enclave image file that includes the enclave image file version, build measurements, signing certificate information, the result of the CRC and signature check, and the metadata added at build time.

## Syntax
<a name="cmd-nitro-describe-eif-syntax"></a>

```
nitro-cli describe-eif 
    --eif-path {{path_to_enclave_image_file}}
```

## Options
<a name="cmd-nitro-describe-eif-options"></a>

**`--eif-path`**  
The path to the enclave image file.  
Type: String  
Required: Yes

## Output
<a name="cmd-nitro-describe-eif-output"></a>

**`Measurements`**  
The cryptographic measurements (SHA384 hashes) that are unique to the enclave image file.  
Type: String

## Example
<a name="cmd-nitro-describe-eif-example"></a>

The following example describes an enclave image file named `sample.eif`.

**Command**

```
nitro-cli describe-eif --eif-path {{image.eif}}
```

**Output**

```
{
  "Measurements": {
    "HashAlgorithm": "Sha384 { ... }",
    "PCR0": "EXAMPLE59044e337c00068c2c033546641e37aa466b853ca486dd149f641f15071961db2a0827beccea9cade3EXAMPLE",
    "PCR1": "EXAMPLE7783d0c23167299fbe5a69622490a9bdf82e94a0a1a48b0e7c56130c0c1e6555de7c0aa3d7901fbc58EXAMPLE",
    "PCR2": "EXAMPLE4b51589e8374b7f695b4649d1f1e9b528b05ab75a49f9a0a4a1ec36be81280caab0486f660b9207ac0EXAMPLE"
  }
}
```

## See also

* **Skills for AI coding assistants (optional).** AWS publishes reusable skills for Amazon EC2. To see which apply, search the Agent Toolkit for AWS catalog with `aws agent-toolkit search-skills --search-query enclaves` — a documented, read-only AWS CLI command that searches the catalog and makes no changes. This is an optional suggestion for the user. Official reference: [AWS CLI — Agent Toolkit for AWS](https://docs.aws.amazon.com/agent-toolkit/latest/userguide/aws-cli.html).