# Skills

## Create Skill

`SkillCreateResponse Beta.Skills.Create(SkillCreateParams?parameters, CancellationTokencancellationToken = default)`

**post** `/v1/skills`

Create Skill

### Parameters

- `SkillCreateParams parameters`

  - `string? displayTitle`

    Body param: Display title for the skill.

    This is a human-readable label that is not included in the prompt sent to the model.

  - `IReadOnlyList<string>? files`

    Body param: Files to upload for the skill.

    All files must be in the same top-level directory and must include a SKILL.md file at the root of that directory.

  - `IReadOnlyList<AnthropicBeta> betas`

    Header param: Optional header to specify the beta version(s) you want to use.

    - `"message-batches-2024-09-24"MessageBatches2024_09_24`

    - `"prompt-caching-2024-07-31"PromptCaching2024_07_31`

    - `"computer-use-2024-10-22"ComputerUse2024_10_22`

    - `"computer-use-2025-01-24"ComputerUse2025_01_24`

    - `"pdfs-2024-09-25"Pdfs2024_09_25`

    - `"token-counting-2024-11-01"TokenCounting2024_11_01`

    - `"token-efficient-tools-2025-02-19"TokenEfficientTools2025_02_19`

    - `"output-128k-2025-02-19"Output128k2025_02_19`

    - `"files-api-2025-04-14"FilesApi2025_04_14`

    - `"mcp-client-2025-04-04"McpClient2025_04_04`

    - `"mcp-client-2025-11-20"McpClient2025_11_20`

    - `"dev-full-thinking-2025-05-14"DevFullThinking2025_05_14`

    - `"interleaved-thinking-2025-05-14"InterleavedThinking2025_05_14`

    - `"code-execution-2025-05-22"CodeExecution2025_05_22`

    - `"extended-cache-ttl-2025-04-11"ExtendedCacheTtl2025_04_11`

    - `"context-1m-2025-08-07"Context1m2025_08_07`

    - `"context-management-2025-06-27"ContextManagement2025_06_27`

    - `"model-context-window-exceeded-2025-08-26"ModelContextWindowExceeded2025_08_26`

    - `"skills-2025-10-02"Skills2025_10_02`

    - `"fast-mode-2026-02-01"FastMode2026_02_01`

    - `"output-300k-2026-03-24"Output300k2026_03_24`

    - `"user-profiles-2026-03-24"UserProfiles2026_03_24`

    - `"advisor-tool-2026-03-01"AdvisorTool2026_03_01`

    - `"managed-agents-2026-04-01"ManagedAgents2026_04_01`

    - `"cache-diagnosis-2026-04-07"CacheDiagnosis2026_04_07`

    - `"thinking-token-count-2026-05-13"ThinkingTokenCount2026_05_13`

    - `"server-side-fallback-2026-06-01"ServerSideFallback2026_06_01`

    - `"fallback-credit-2026-06-01"FallbackCredit2026_06_01`

### Returns

- `class SkillCreateResponse:`

  - `required string ID`

    Unique identifier for the skill.

    The format and length of IDs may change over time.

  - `required string CreatedAt`

    ISO 8601 timestamp of when the skill was created.

  - `required string? DisplayTitle`

    Display title for the skill.

    This is a human-readable label that is not included in the prompt sent to the model.

  - `required string? LatestVersion`

    The latest version identifier for the skill.

    This represents the most recent version of the skill that has been created.

  - `required string Source`

    Source of the skill.

    This may be one of the following values:

    * `"custom"`: the skill was created by a user
    * `"anthropic"`: the skill was created by Anthropic

  - `required string Type`

    Object type.

    For Skills, this is always `"skill"`.

  - `required string UpdatedAt`

    ISO 8601 timestamp of when the skill was last updated.

### Example

```csharp
SkillCreateParams parameters = new();

var skill = await client.Beta.Skills.Create(parameters);

Console.WriteLine(skill);
```

#### Response

```json
{
  "id": "skill_01JAbcdefghijklmnopqrstuvw",
  "created_at": "2024-10-30T23:58:27.427722Z",
  "display_title": "My Custom Skill",
  "latest_version": "1759178010641129",
  "source": "custom",
  "type": "type",
  "updated_at": "2024-10-30T23:58:27.427722Z"
}
```

## List Skills

`SkillListPageResponse Beta.Skills.List(SkillListParams?parameters, CancellationTokencancellationToken = default)`

**get** `/v1/skills`

List Skills

### Parameters

- `SkillListParams parameters`

  - `Long limit`

    Query param: Number of results to return per page.

    Maximum value is 100. Defaults to 20.

  - `string? page`

    Query param: Pagination token for fetching a specific page of results.

    Pass the value from a previous response's `next_page` field to get the next page of results.

  - `string? source`

    Query param: Filter skills by source.

    If provided, only skills from the specified source will be returned:

    * `"custom"`: only return user-created skills
    * `"anthropic"`: only return Anthropic-created skills

  - `IReadOnlyList<AnthropicBeta> betas`

    Header param: Optional header to specify the beta version(s) you want to use.

    - `"message-batches-2024-09-24"MessageBatches2024_09_24`

    - `"prompt-caching-2024-07-31"PromptCaching2024_07_31`

    - `"computer-use-2024-10-22"ComputerUse2024_10_22`

    - `"computer-use-2025-01-24"ComputerUse2025_01_24`

    - `"pdfs-2024-09-25"Pdfs2024_09_25`

    - `"token-counting-2024-11-01"TokenCounting2024_11_01`

    - `"token-efficient-tools-2025-02-19"TokenEfficientTools2025_02_19`

    - `"output-128k-2025-02-19"Output128k2025_02_19`

    - `"files-api-2025-04-14"FilesApi2025_04_14`

    - `"mcp-client-2025-04-04"McpClient2025_04_04`

    - `"mcp-client-2025-11-20"McpClient2025_11_20`

    - `"dev-full-thinking-2025-05-14"DevFullThinking2025_05_14`

    - `"interleaved-thinking-2025-05-14"InterleavedThinking2025_05_14`

    - `"code-execution-2025-05-22"CodeExecution2025_05_22`

    - `"extended-cache-ttl-2025-04-11"ExtendedCacheTtl2025_04_11`

    - `"context-1m-2025-08-07"Context1m2025_08_07`

    - `"context-management-2025-06-27"ContextManagement2025_06_27`

    - `"model-context-window-exceeded-2025-08-26"ModelContextWindowExceeded2025_08_26`

    - `"skills-2025-10-02"Skills2025_10_02`

    - `"fast-mode-2026-02-01"FastMode2026_02_01`

    - `"output-300k-2026-03-24"Output300k2026_03_24`

    - `"user-profiles-2026-03-24"UserProfiles2026_03_24`

    - `"advisor-tool-2026-03-01"AdvisorTool2026_03_01`

    - `"managed-agents-2026-04-01"ManagedAgents2026_04_01`

    - `"cache-diagnosis-2026-04-07"CacheDiagnosis2026_04_07`

    - `"thinking-token-count-2026-05-13"ThinkingTokenCount2026_05_13`

    - `"server-side-fallback-2026-06-01"ServerSideFallback2026_06_01`

    - `"fallback-credit-2026-06-01"FallbackCredit2026_06_01`

### Returns

- `class SkillListPageResponse:`

  - `required IReadOnlyList<SkillListResponse> Data`

    List of skills.

    - `required string ID`

      Unique identifier for the skill.

      The format and length of IDs may change over time.

    - `required string CreatedAt`

      ISO 8601 timestamp of when the skill was created.

    - `required string? DisplayTitle`

      Display title for the skill.

      This is a human-readable label that is not included in the prompt sent to the model.

    - `required string? LatestVersion`

      The latest version identifier for the skill.

      This represents the most recent version of the skill that has been created.

    - `required string Source`

      Source of the skill.

      This may be one of the following values:

      * `"custom"`: the skill was created by a user
      * `"anthropic"`: the skill was created by Anthropic

    - `required string Type`

      Object type.

      For Skills, this is always `"skill"`.

    - `required string UpdatedAt`

      ISO 8601 timestamp of when the skill was last updated.

  - `required Boolean HasMore`

    Whether there are more results available.

    If `true`, there are additional results that can be fetched using the `next_page` token.

  - `required string? NextPage`

    Token for fetching the next page of results.

    If `null`, there are no more results available. Pass this value to the `page_token` parameter in the next request to get the next page.

### Example

```csharp
SkillListParams parameters = new();

var page = await client.Beta.Skills.List(parameters);
await foreach (var item in page.Paginate())
{
    Console.WriteLine(item);
}
```

#### Response

```json
{
  "data": [
    {
      "id": "skill_01JAbcdefghijklmnopqrstuvw",
      "created_at": "2024-10-30T23:58:27.427722Z",
      "display_title": "My Custom Skill",
      "latest_version": "1759178010641129",
      "source": "custom",
      "type": "type",
      "updated_at": "2024-10-30T23:58:27.427722Z"
    }
  ],
  "has_more": true,
  "next_page": "page_MjAyNS0wNS0xNFQwMDowMDowMFo="
}
```

## Get Skill

`SkillRetrieveResponse Beta.Skills.Retrieve(SkillRetrieveParamsparameters, CancellationTokencancellationToken = default)`

**get** `/v1/skills/{skill_id}`

Get Skill

### Parameters

- `SkillRetrieveParams parameters`

  - `required string skillID`

    Unique identifier for the skill.

    The format and length of IDs may change over time.

  - `IReadOnlyList<AnthropicBeta> betas`

    Optional header to specify the beta version(s) you want to use.

    - `"message-batches-2024-09-24"MessageBatches2024_09_24`

    - `"prompt-caching-2024-07-31"PromptCaching2024_07_31`

    - `"computer-use-2024-10-22"ComputerUse2024_10_22`

    - `"computer-use-2025-01-24"ComputerUse2025_01_24`

    - `"pdfs-2024-09-25"Pdfs2024_09_25`

    - `"token-counting-2024-11-01"TokenCounting2024_11_01`

    - `"token-efficient-tools-2025-02-19"TokenEfficientTools2025_02_19`

    - `"output-128k-2025-02-19"Output128k2025_02_19`

    - `"files-api-2025-04-14"FilesApi2025_04_14`

    - `"mcp-client-2025-04-04"McpClient2025_04_04`

    - `"mcp-client-2025-11-20"McpClient2025_11_20`

    - `"dev-full-thinking-2025-05-14"DevFullThinking2025_05_14`

    - `"interleaved-thinking-2025-05-14"InterleavedThinking2025_05_14`

    - `"code-execution-2025-05-22"CodeExecution2025_05_22`

    - `"extended-cache-ttl-2025-04-11"ExtendedCacheTtl2025_04_11`

    - `"context-1m-2025-08-07"Context1m2025_08_07`

    - `"context-management-2025-06-27"ContextManagement2025_06_27`

    - `"model-context-window-exceeded-2025-08-26"ModelContextWindowExceeded2025_08_26`

    - `"skills-2025-10-02"Skills2025_10_02`

    - `"fast-mode-2026-02-01"FastMode2026_02_01`

    - `"output-300k-2026-03-24"Output300k2026_03_24`

    - `"user-profiles-2026-03-24"UserProfiles2026_03_24`

    - `"advisor-tool-2026-03-01"AdvisorTool2026_03_01`

    - `"managed-agents-2026-04-01"ManagedAgents2026_04_01`

    - `"cache-diagnosis-2026-04-07"CacheDiagnosis2026_04_07`

    - `"thinking-token-count-2026-05-13"ThinkingTokenCount2026_05_13`

    - `"server-side-fallback-2026-06-01"ServerSideFallback2026_06_01`

    - `"fallback-credit-2026-06-01"FallbackCredit2026_06_01`

### Returns

- `class SkillRetrieveResponse:`

  - `required string ID`

    Unique identifier for the skill.

    The format and length of IDs may change over time.

  - `required string CreatedAt`

    ISO 8601 timestamp of when the skill was created.

  - `required string? DisplayTitle`

    Display title for the skill.

    This is a human-readable label that is not included in the prompt sent to the model.

  - `required string? LatestVersion`

    The latest version identifier for the skill.

    This represents the most recent version of the skill that has been created.

  - `required string Source`

    Source of the skill.

    This may be one of the following values:

    * `"custom"`: the skill was created by a user
    * `"anthropic"`: the skill was created by Anthropic

  - `required string Type`

    Object type.

    For Skills, this is always `"skill"`.

  - `required string UpdatedAt`

    ISO 8601 timestamp of when the skill was last updated.

### Example

```csharp
SkillRetrieveParams parameters = new() { SkillID = "skill_id" };

var skill = await client.Beta.Skills.Retrieve(parameters);

Console.WriteLine(skill);
```

#### Response

```json
{
  "id": "skill_01JAbcdefghijklmnopqrstuvw",
  "created_at": "2024-10-30T23:58:27.427722Z",
  "display_title": "My Custom Skill",
  "latest_version": "1759178010641129",
  "source": "custom",
  "type": "type",
  "updated_at": "2024-10-30T23:58:27.427722Z"
}
```

## Delete Skill

`SkillDeleteResponse Beta.Skills.Delete(SkillDeleteParamsparameters, CancellationTokencancellationToken = default)`

**delete** `/v1/skills/{skill_id}`

Delete Skill

### Parameters

- `SkillDeleteParams parameters`

  - `required string skillID`

    Unique identifier for the skill.

    The format and length of IDs may change over time.

  - `IReadOnlyList<AnthropicBeta> betas`

    Optional header to specify the beta version(s) you want to use.

    - `"message-batches-2024-09-24"MessageBatches2024_09_24`

    - `"prompt-caching-2024-07-31"PromptCaching2024_07_31`

    - `"computer-use-2024-10-22"ComputerUse2024_10_22`

    - `"computer-use-2025-01-24"ComputerUse2025_01_24`

    - `"pdfs-2024-09-25"Pdfs2024_09_25`

    - `"token-counting-2024-11-01"TokenCounting2024_11_01`

    - `"token-efficient-tools-2025-02-19"TokenEfficientTools2025_02_19`

    - `"output-128k-2025-02-19"Output128k2025_02_19`

    - `"files-api-2025-04-14"FilesApi2025_04_14`

    - `"mcp-client-2025-04-04"McpClient2025_04_04`

    - `"mcp-client-2025-11-20"McpClient2025_11_20`

    - `"dev-full-thinking-2025-05-14"DevFullThinking2025_05_14`

    - `"interleaved-thinking-2025-05-14"InterleavedThinking2025_05_14`

    - `"code-execution-2025-05-22"CodeExecution2025_05_22`

    - `"extended-cache-ttl-2025-04-11"ExtendedCacheTtl2025_04_11`

    - `"context-1m-2025-08-07"Context1m2025_08_07`

    - `"context-management-2025-06-27"ContextManagement2025_06_27`

    - `"model-context-window-exceeded-2025-08-26"ModelContextWindowExceeded2025_08_26`

    - `"skills-2025-10-02"Skills2025_10_02`

    - `"fast-mode-2026-02-01"FastMode2026_02_01`

    - `"output-300k-2026-03-24"Output300k2026_03_24`

    - `"user-profiles-2026-03-24"UserProfiles2026_03_24`

    - `"advisor-tool-2026-03-01"AdvisorTool2026_03_01`

    - `"managed-agents-2026-04-01"ManagedAgents2026_04_01`

    - `"cache-diagnosis-2026-04-07"CacheDiagnosis2026_04_07`

    - `"thinking-token-count-2026-05-13"ThinkingTokenCount2026_05_13`

    - `"server-side-fallback-2026-06-01"ServerSideFallback2026_06_01`

    - `"fallback-credit-2026-06-01"FallbackCredit2026_06_01`

### Returns

- `class SkillDeleteResponse:`

  - `required string ID`

    Unique identifier for the skill.

    The format and length of IDs may change over time.

  - `required string Type`

    Deleted object type.

    For Skills, this is always `"skill_deleted"`.

### Example

```csharp
SkillDeleteParams parameters = new() { SkillID = "skill_id" };

var skill = await client.Beta.Skills.Delete(parameters);

Console.WriteLine(skill);
```

#### Response

```json
{
  "id": "skill_01JAbcdefghijklmnopqrstuvw",
  "type": "type"
}
```

# Versions

## Create Skill Version

`VersionCreateResponse Beta.Skills.Versions.Create(VersionCreateParamsparameters, CancellationTokencancellationToken = default)`

**post** `/v1/skills/{skill_id}/versions`

Create Skill Version

### Parameters

- `VersionCreateParams parameters`

  - `required string skillID`

    Path param: Unique identifier for the skill.

    The format and length of IDs may change over time.

  - `IReadOnlyList<string>? files`

    Body param: Files to upload for the skill.

    All files must be in the same top-level directory and must include a SKILL.md file at the root of that directory.

  - `IReadOnlyList<AnthropicBeta> betas`

    Header param: Optional header to specify the beta version(s) you want to use.

    - `"message-batches-2024-09-24"MessageBatches2024_09_24`

    - `"prompt-caching-2024-07-31"PromptCaching2024_07_31`

    - `"computer-use-2024-10-22"ComputerUse2024_10_22`

    - `"computer-use-2025-01-24"ComputerUse2025_01_24`

    - `"pdfs-2024-09-25"Pdfs2024_09_25`

    - `"token-counting-2024-11-01"TokenCounting2024_11_01`

    - `"token-efficient-tools-2025-02-19"TokenEfficientTools2025_02_19`

    - `"output-128k-2025-02-19"Output128k2025_02_19`

    - `"files-api-2025-04-14"FilesApi2025_04_14`

    - `"mcp-client-2025-04-04"McpClient2025_04_04`

    - `"mcp-client-2025-11-20"McpClient2025_11_20`

    - `"dev-full-thinking-2025-05-14"DevFullThinking2025_05_14`

    - `"interleaved-thinking-2025-05-14"InterleavedThinking2025_05_14`

    - `"code-execution-2025-05-22"CodeExecution2025_05_22`

    - `"extended-cache-ttl-2025-04-11"ExtendedCacheTtl2025_04_11`

    - `"context-1m-2025-08-07"Context1m2025_08_07`

    - `"context-management-2025-06-27"ContextManagement2025_06_27`

    - `"model-context-window-exceeded-2025-08-26"ModelContextWindowExceeded2025_08_26`

    - `"skills-2025-10-02"Skills2025_10_02`

    - `"fast-mode-2026-02-01"FastMode2026_02_01`

    - `"output-300k-2026-03-24"Output300k2026_03_24`

    - `"user-profiles-2026-03-24"UserProfiles2026_03_24`

    - `"advisor-tool-2026-03-01"AdvisorTool2026_03_01`

    - `"managed-agents-2026-04-01"ManagedAgents2026_04_01`

    - `"cache-diagnosis-2026-04-07"CacheDiagnosis2026_04_07`

    - `"thinking-token-count-2026-05-13"ThinkingTokenCount2026_05_13`

    - `"server-side-fallback-2026-06-01"ServerSideFallback2026_06_01`

    - `"fallback-credit-2026-06-01"FallbackCredit2026_06_01`

### Returns

- `class VersionCreateResponse:`

  - `required string ID`

    Unique identifier for the skill version.

    The format and length of IDs may change over time.

  - `required string CreatedAt`

    ISO 8601 timestamp of when the skill version was created.

  - `required string Description`

    Description of the skill version.

    This is extracted from the SKILL.md file in the skill upload.

  - `required string Directory`

    Directory name of the skill version.

    This is the top-level directory name that was extracted from the uploaded files.

  - `required string Name`

    Human-readable name of the skill version.

    This is extracted from the SKILL.md file in the skill upload.

  - `required string SkillID`

    Identifier for the skill that this version belongs to.

  - `required string Type`

    Object type.

    For Skill Versions, this is always `"skill_version"`.

  - `required string Version`

    Version identifier for the skill.

    Each version is identified by a Unix epoch timestamp (e.g., "1759178010641129").

### Example

```csharp
VersionCreateParams parameters = new() { SkillID = "skill_id" };

var version = await client.Beta.Skills.Versions.Create(parameters);

Console.WriteLine(version);
```

#### Response

```json
{
  "id": "skillver_01JAbcdefghijklmnopqrstuvw",
  "created_at": "2024-10-30T23:58:27.427722Z",
  "description": "A custom skill for doing something useful",
  "directory": "my-skill",
  "name": "my-skill",
  "skill_id": "skill_01JAbcdefghijklmnopqrstuvw",
  "type": "type",
  "version": "1759178010641129"
}
```

## List Skill Versions

`VersionListPageResponse Beta.Skills.Versions.List(VersionListParamsparameters, CancellationTokencancellationToken = default)`

**get** `/v1/skills/{skill_id}/versions`

List Skill Versions

### Parameters

- `VersionListParams parameters`

  - `required string skillID`

    Path param: Unique identifier for the skill.

    The format and length of IDs may change over time.

  - `Long? limit`

    Query param: Number of items to return per page.

    Defaults to `20`. Ranges from `1` to `1000`.

  - `string? page`

    Query param: Optionally set to the `next_page` token from the previous response.

  - `IReadOnlyList<AnthropicBeta> betas`

    Header param: Optional header to specify the beta version(s) you want to use.

    - `"message-batches-2024-09-24"MessageBatches2024_09_24`

    - `"prompt-caching-2024-07-31"PromptCaching2024_07_31`

    - `"computer-use-2024-10-22"ComputerUse2024_10_22`

    - `"computer-use-2025-01-24"ComputerUse2025_01_24`

    - `"pdfs-2024-09-25"Pdfs2024_09_25`

    - `"token-counting-2024-11-01"TokenCounting2024_11_01`

    - `"token-efficient-tools-2025-02-19"TokenEfficientTools2025_02_19`

    - `"output-128k-2025-02-19"Output128k2025_02_19`

    - `"files-api-2025-04-14"FilesApi2025_04_14`

    - `"mcp-client-2025-04-04"McpClient2025_04_04`

    - `"mcp-client-2025-11-20"McpClient2025_11_20`

    - `"dev-full-thinking-2025-05-14"DevFullThinking2025_05_14`

    - `"interleaved-thinking-2025-05-14"InterleavedThinking2025_05_14`

    - `"code-execution-2025-05-22"CodeExecution2025_05_22`

    - `"extended-cache-ttl-2025-04-11"ExtendedCacheTtl2025_04_11`

    - `"context-1m-2025-08-07"Context1m2025_08_07`

    - `"context-management-2025-06-27"ContextManagement2025_06_27`

    - `"model-context-window-exceeded-2025-08-26"ModelContextWindowExceeded2025_08_26`

    - `"skills-2025-10-02"Skills2025_10_02`

    - `"fast-mode-2026-02-01"FastMode2026_02_01`

    - `"output-300k-2026-03-24"Output300k2026_03_24`

    - `"user-profiles-2026-03-24"UserProfiles2026_03_24`

    - `"advisor-tool-2026-03-01"AdvisorTool2026_03_01`

    - `"managed-agents-2026-04-01"ManagedAgents2026_04_01`

    - `"cache-diagnosis-2026-04-07"CacheDiagnosis2026_04_07`

    - `"thinking-token-count-2026-05-13"ThinkingTokenCount2026_05_13`

    - `"server-side-fallback-2026-06-01"ServerSideFallback2026_06_01`

    - `"fallback-credit-2026-06-01"FallbackCredit2026_06_01`

### Returns

- `class VersionListPageResponse:`

  - `required IReadOnlyList<VersionListResponse> Data`

    List of skill versions.

    - `required string ID`

      Unique identifier for the skill version.

      The format and length of IDs may change over time.

    - `required string CreatedAt`

      ISO 8601 timestamp of when the skill version was created.

    - `required string Description`

      Description of the skill version.

      This is extracted from the SKILL.md file in the skill upload.

    - `required string Directory`

      Directory name of the skill version.

      This is the top-level directory name that was extracted from the uploaded files.

    - `required string Name`

      Human-readable name of the skill version.

      This is extracted from the SKILL.md file in the skill upload.

    - `required string SkillID`

      Identifier for the skill that this version belongs to.

    - `required string Type`

      Object type.

      For Skill Versions, this is always `"skill_version"`.

    - `required string Version`

      Version identifier for the skill.

      Each version is identified by a Unix epoch timestamp (e.g., "1759178010641129").

  - `required Boolean HasMore`

    Indicates if there are more results in the requested page direction.

  - `required string? NextPage`

    Token to provide in as `page` in the subsequent request to retrieve the next page of data.

### Example

```csharp
VersionListParams parameters = new() { SkillID = "skill_id" };

var page = await client.Beta.Skills.Versions.List(parameters);
await foreach (var item in page.Paginate())
{
    Console.WriteLine(item);
}
```

#### Response

```json
{
  "data": [
    {
      "id": "skillver_01JAbcdefghijklmnopqrstuvw",
      "created_at": "2024-10-30T23:58:27.427722Z",
      "description": "A custom skill for doing something useful",
      "directory": "my-skill",
      "name": "my-skill",
      "skill_id": "skill_01JAbcdefghijklmnopqrstuvw",
      "type": "type",
      "version": "1759178010641129"
    }
  ],
  "has_more": true,
  "next_page": "page_MjAyNS0wNS0xNFQwMDowMDowMFo="
}
```

## Download Skill Version Content

`HttpResponse Beta.Skills.Versions.Download(VersionDownloadParamsparameters, CancellationTokencancellationToken = default)`

**get** `/v1/skills/{skill_id}/versions/{version}/content`

Download a skill version's content as a zip archive.

### Parameters

- `VersionDownloadParams parameters`

  - `required string skillID`

    Path param: Unique identifier for the skill.

    The format and length of IDs may change over time.

  - `required string version`

    Path param: Version identifier for the skill.

    Each version is identified by a Unix epoch timestamp (e.g., "1759178010641129").

  - `IReadOnlyList<AnthropicBeta> betas`

    Header param: Optional header to specify the beta version(s) you want to use.

    - `"message-batches-2024-09-24"MessageBatches2024_09_24`

    - `"prompt-caching-2024-07-31"PromptCaching2024_07_31`

    - `"computer-use-2024-10-22"ComputerUse2024_10_22`

    - `"computer-use-2025-01-24"ComputerUse2025_01_24`

    - `"pdfs-2024-09-25"Pdfs2024_09_25`

    - `"token-counting-2024-11-01"TokenCounting2024_11_01`

    - `"token-efficient-tools-2025-02-19"TokenEfficientTools2025_02_19`

    - `"output-128k-2025-02-19"Output128k2025_02_19`

    - `"files-api-2025-04-14"FilesApi2025_04_14`

    - `"mcp-client-2025-04-04"McpClient2025_04_04`

    - `"mcp-client-2025-11-20"McpClient2025_11_20`

    - `"dev-full-thinking-2025-05-14"DevFullThinking2025_05_14`

    - `"interleaved-thinking-2025-05-14"InterleavedThinking2025_05_14`

    - `"code-execution-2025-05-22"CodeExecution2025_05_22`

    - `"extended-cache-ttl-2025-04-11"ExtendedCacheTtl2025_04_11`

    - `"context-1m-2025-08-07"Context1m2025_08_07`

    - `"context-management-2025-06-27"ContextManagement2025_06_27`

    - `"model-context-window-exceeded-2025-08-26"ModelContextWindowExceeded2025_08_26`

    - `"skills-2025-10-02"Skills2025_10_02`

    - `"fast-mode-2026-02-01"FastMode2026_02_01`

    - `"output-300k-2026-03-24"Output300k2026_03_24`

    - `"user-profiles-2026-03-24"UserProfiles2026_03_24`

    - `"advisor-tool-2026-03-01"AdvisorTool2026_03_01`

    - `"managed-agents-2026-04-01"ManagedAgents2026_04_01`

    - `"cache-diagnosis-2026-04-07"CacheDiagnosis2026_04_07`

    - `"thinking-token-count-2026-05-13"ThinkingTokenCount2026_05_13`

    - `"server-side-fallback-2026-06-01"ServerSideFallback2026_06_01`

    - `"fallback-credit-2026-06-01"FallbackCredit2026_06_01`

### Example

```csharp
VersionDownloadParams parameters = new()
{
    SkillID = "skill_id",
    Version = "version",
};

var response = await client.Beta.Skills.Versions.Download(parameters);

Console.WriteLine(response);
```

## Get Skill Version

`VersionRetrieveResponse Beta.Skills.Versions.Retrieve(VersionRetrieveParamsparameters, CancellationTokencancellationToken = default)`

**get** `/v1/skills/{skill_id}/versions/{version}`

Get Skill Version

### Parameters

- `VersionRetrieveParams parameters`

  - `required string skillID`

    Path param: Unique identifier for the skill.

    The format and length of IDs may change over time.

  - `required string version`

    Path param: Version identifier for the skill.

    Each version is identified by a Unix epoch timestamp (e.g., "1759178010641129").

  - `IReadOnlyList<AnthropicBeta> betas`

    Header param: Optional header to specify the beta version(s) you want to use.

    - `"message-batches-2024-09-24"MessageBatches2024_09_24`

    - `"prompt-caching-2024-07-31"PromptCaching2024_07_31`

    - `"computer-use-2024-10-22"ComputerUse2024_10_22`

    - `"computer-use-2025-01-24"ComputerUse2025_01_24`

    - `"pdfs-2024-09-25"Pdfs2024_09_25`

    - `"token-counting-2024-11-01"TokenCounting2024_11_01`

    - `"token-efficient-tools-2025-02-19"TokenEfficientTools2025_02_19`

    - `"output-128k-2025-02-19"Output128k2025_02_19`

    - `"files-api-2025-04-14"FilesApi2025_04_14`

    - `"mcp-client-2025-04-04"McpClient2025_04_04`

    - `"mcp-client-2025-11-20"McpClient2025_11_20`

    - `"dev-full-thinking-2025-05-14"DevFullThinking2025_05_14`

    - `"interleaved-thinking-2025-05-14"InterleavedThinking2025_05_14`

    - `"code-execution-2025-05-22"CodeExecution2025_05_22`

    - `"extended-cache-ttl-2025-04-11"ExtendedCacheTtl2025_04_11`

    - `"context-1m-2025-08-07"Context1m2025_08_07`

    - `"context-management-2025-06-27"ContextManagement2025_06_27`

    - `"model-context-window-exceeded-2025-08-26"ModelContextWindowExceeded2025_08_26`

    - `"skills-2025-10-02"Skills2025_10_02`

    - `"fast-mode-2026-02-01"FastMode2026_02_01`

    - `"output-300k-2026-03-24"Output300k2026_03_24`

    - `"user-profiles-2026-03-24"UserProfiles2026_03_24`

    - `"advisor-tool-2026-03-01"AdvisorTool2026_03_01`

    - `"managed-agents-2026-04-01"ManagedAgents2026_04_01`

    - `"cache-diagnosis-2026-04-07"CacheDiagnosis2026_04_07`

    - `"thinking-token-count-2026-05-13"ThinkingTokenCount2026_05_13`

    - `"server-side-fallback-2026-06-01"ServerSideFallback2026_06_01`

    - `"fallback-credit-2026-06-01"FallbackCredit2026_06_01`

### Returns

- `class VersionRetrieveResponse:`

  - `required string ID`

    Unique identifier for the skill version.

    The format and length of IDs may change over time.

  - `required string CreatedAt`

    ISO 8601 timestamp of when the skill version was created.

  - `required string Description`

    Description of the skill version.

    This is extracted from the SKILL.md file in the skill upload.

  - `required string Directory`

    Directory name of the skill version.

    This is the top-level directory name that was extracted from the uploaded files.

  - `required string Name`

    Human-readable name of the skill version.

    This is extracted from the SKILL.md file in the skill upload.

  - `required string SkillID`

    Identifier for the skill that this version belongs to.

  - `required string Type`

    Object type.

    For Skill Versions, this is always `"skill_version"`.

  - `required string Version`

    Version identifier for the skill.

    Each version is identified by a Unix epoch timestamp (e.g., "1759178010641129").

### Example

```csharp
VersionRetrieveParams parameters = new()
{
    SkillID = "skill_id",
    Version = "version",
};

var version = await client.Beta.Skills.Versions.Retrieve(parameters);

Console.WriteLine(version);
```

#### Response

```json
{
  "id": "skillver_01JAbcdefghijklmnopqrstuvw",
  "created_at": "2024-10-30T23:58:27.427722Z",
  "description": "A custom skill for doing something useful",
  "directory": "my-skill",
  "name": "my-skill",
  "skill_id": "skill_01JAbcdefghijklmnopqrstuvw",
  "type": "type",
  "version": "1759178010641129"
}
```

## Delete Skill Version

`VersionDeleteResponse Beta.Skills.Versions.Delete(VersionDeleteParamsparameters, CancellationTokencancellationToken = default)`

**delete** `/v1/skills/{skill_id}/versions/{version}`

Delete Skill Version

### Parameters

- `VersionDeleteParams parameters`

  - `required string skillID`

    Path param: Unique identifier for the skill.

    The format and length of IDs may change over time.

  - `required string version`

    Path param: Version identifier for the skill.

    Each version is identified by a Unix epoch timestamp (e.g., "1759178010641129").

  - `IReadOnlyList<AnthropicBeta> betas`

    Header param: Optional header to specify the beta version(s) you want to use.

    - `"message-batches-2024-09-24"MessageBatches2024_09_24`

    - `"prompt-caching-2024-07-31"PromptCaching2024_07_31`

    - `"computer-use-2024-10-22"ComputerUse2024_10_22`

    - `"computer-use-2025-01-24"ComputerUse2025_01_24`

    - `"pdfs-2024-09-25"Pdfs2024_09_25`

    - `"token-counting-2024-11-01"TokenCounting2024_11_01`

    - `"token-efficient-tools-2025-02-19"TokenEfficientTools2025_02_19`

    - `"output-128k-2025-02-19"Output128k2025_02_19`

    - `"files-api-2025-04-14"FilesApi2025_04_14`

    - `"mcp-client-2025-04-04"McpClient2025_04_04`

    - `"mcp-client-2025-11-20"McpClient2025_11_20`

    - `"dev-full-thinking-2025-05-14"DevFullThinking2025_05_14`

    - `"interleaved-thinking-2025-05-14"InterleavedThinking2025_05_14`

    - `"code-execution-2025-05-22"CodeExecution2025_05_22`

    - `"extended-cache-ttl-2025-04-11"ExtendedCacheTtl2025_04_11`

    - `"context-1m-2025-08-07"Context1m2025_08_07`

    - `"context-management-2025-06-27"ContextManagement2025_06_27`

    - `"model-context-window-exceeded-2025-08-26"ModelContextWindowExceeded2025_08_26`

    - `"skills-2025-10-02"Skills2025_10_02`

    - `"fast-mode-2026-02-01"FastMode2026_02_01`

    - `"output-300k-2026-03-24"Output300k2026_03_24`

    - `"user-profiles-2026-03-24"UserProfiles2026_03_24`

    - `"advisor-tool-2026-03-01"AdvisorTool2026_03_01`

    - `"managed-agents-2026-04-01"ManagedAgents2026_04_01`

    - `"cache-diagnosis-2026-04-07"CacheDiagnosis2026_04_07`

    - `"thinking-token-count-2026-05-13"ThinkingTokenCount2026_05_13`

    - `"server-side-fallback-2026-06-01"ServerSideFallback2026_06_01`

    - `"fallback-credit-2026-06-01"FallbackCredit2026_06_01`

### Returns

- `class VersionDeleteResponse:`

  - `required string ID`

    Version identifier for the skill.

    Each version is identified by a Unix epoch timestamp (e.g., "1759178010641129").

  - `required string Type`

    Deleted object type.

    For Skill Versions, this is always `"skill_version_deleted"`.

### Example

```csharp
VersionDeleteParams parameters = new()
{
    SkillID = "skill_id",
    Version = "version",
};

var version = await client.Beta.Skills.Versions.Delete(parameters);

Console.WriteLine(version);
```

#### Response

```json
{
  "id": "1759178010641129",
  "type": "type"
}
```
