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Sweep 28 Aug 2026 · 00:00Z Build v2.1.250 478 read Stable v2.1.236 Latest v2.1.250 Next v2.1.251 Feeds RSS JSON llms.txt
Reading a new release v2.1.251 Analysing changes · 2/5 Deeper second pass · 0/5 agents 427 findings $12.75 so far

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

One change

Versions

api/beta/skills/versions

first seen The page's own history The capture it came from

Nearest release: v2.1.245, published an hour after this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

api/beta/skills/versions Changed · +55 / -36 lines

### Path parameters ### Headers ### Body parameters (form-data) #### Response (200) ### Path parameters ### Query parameters ### Headers #### Response (200) ### Path parameters ### Headers ### Path parameters ### Headers #### Response (200) ### Path parameters ### Headers #### Response (200) ## Domain types ### Path Parameters ### Header Parameters #### Response ### Path Parameters ### Query Parameters ### Header Parameters #### Response ### Path Parameters ### Header Parameters ### Path Parameters ### Header Parameters #### Response ### Path Parameters ### Header Parameters #### Response ## Domain Types

from line 1
----
-title: Versions
-url: https://platform.claude.com/docs/en/api/beta/skills/versions
----
-
 # Versions
 
 ## Create Skill Version
 
-**post** `/v1/skills/{skill_id}/versions`
+**POST** `/v1/skills/{skill_id}/versions`
 
 Create Skill Version
 
-### Path Parameters
+### Path parameters
 
 - `skill_id: string`
from line 14
 
   The format and length of IDs may change over time.
 
-### Header Parameters
+### Headers
 
 - `"anthropic-beta": optional array of AnthropicBeta`
from line 92
 
     - `"mid-conversation-tool-changes-2026-07-01"`
 
+### Body parameters (form-data)
+
+- `files: array of string`
+
+  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.
+
 ### Returns
 
 - `id: string`
from line 140
 
   For Skill Versions, this is always `"skill_version"`.
 
+  default: skill_version
+
 - `version: string`
 
   Version identifier for the skill.
from line 150
 
 ### Example
 
-```http
+```bash
 curl https://api.anthropic.com/v1/skills/$SKILL_ID/versions \
     -H 'Content-Type: multipart/form-data' \
     -H 'anthropic-version: 2023-06-01' \
from line 159
     -F files='["Example data"]'
 ```
 
-#### Response
+#### Response (200)
 
 ```json
 {
from line 176
 
 ## List Skill Versions
 
-**get** `/v1/skills/{skill_id}/versions`
+**GET** `/v1/skills/{skill_id}/versions`
 
 List Skill Versions
 
-### Path Parameters
+### Path parameters
 
 - `skill_id: string`
from line 188
 
   The format and length of IDs may change over time.
 
-### Query Parameters
+### Query parameters
 
 - `limit: optional number`
from line 200
 
   Optionally set to the `next_page` token from the previous response.
 
-### Header Parameters
+### Headers
 
 - `"anthropic-beta": optional array of AnthropicBeta`
from line 280
 
 ### Returns
 
-- `data: array of object { id, created_at, description, 5 more }`
+- `data: array of object`
 
   List of skill versions.
from line 322
 
     For Skill Versions, this is always `"skill_version"`.
 
+    default: skill_version
+
   - `version: string`
 
     Version identifier for the skill.
from line 340
 
 ### Example
 
-```http
+```bash
 curl https://api.anthropic.com/v1/skills/$SKILL_ID/versions \
     -H 'anthropic-version: 2023-06-01' \
     -H 'anthropic-beta: skills-2025-10-02' \
from line 347
     -H "X-Api-Key: $ANTHROPIC_API_KEY"
 ```
 
-#### Response
+#### Response (200)
 
 ```json
 {
from line 370
 
 ## Download Skill Version Content
 
-**get** `/v1/skills/{skill_id}/versions/{version}/content`
+**GET** `/v1/skills/{skill_id}/versions/{version}/content`
 
 Download a skill version's content as a zip archive.
 
-### Path Parameters
+### Path parameters
 
 - `skill_id: string`
from line 388
 
   Each version is identified by a Unix epoch timestamp (e.g., "1759178010641129").
 
-### Header Parameters
+### Headers
 
 - `"anthropic-beta": optional array of AnthropicBeta`
from line 468
 
 ### Example
 
-```http
+```bash
 curl https://api.anthropic.com/v1/skills/$SKILL_ID/versions/$VERSION/content \
     -H 'anthropic-version: 2023-06-01' \
     -H 'anthropic-beta: skills-2025-10-02' \
from line 477
 
 ## Get Skill Version
 
-**get** `/v1/skills/{skill_id}/versions/{version}`
+**GET** `/v1/skills/{skill_id}/versions/{version}`
 
 Get Skill Version
 
-### Path Parameters
+### Path parameters
 
 - `skill_id: string`
from line 495
 
   Each version is identified by a Unix epoch timestamp (e.g., "1759178010641129").
 
-### Header Parameters
+### Headers
 
 - `"anthropic-beta": optional array of AnthropicBeta`
from line 613
 
   For Skill Versions, this is always `"skill_version"`.
 
+  default: skill_version
+
 - `version: string`
 
   Version identifier for the skill.
from line 623
 
 ### Example
 
-```http
+```bash
 curl https://api.anthropic.com/v1/skills/$SKILL_ID/versions/$VERSION \
     -H 'anthropic-version: 2023-06-01' \
     -H 'anthropic-beta: skills-2025-10-02' \
from line 630
     -H "X-Api-Key: $ANTHROPIC_API_KEY"
 ```
 
-#### Response
+#### Response (200)
 
 ```json
 {
from line 647
 
 ## Delete Skill Version
 
-**delete** `/v1/skills/{skill_id}/versions/{version}`
+**DELETE** `/v1/skills/{skill_id}/versions/{version}`
 
 Delete Skill Version
 
-### Path Parameters
+### Path parameters
 
 - `skill_id: string`
from line 665
 
   Each version is identified by a Unix epoch timestamp (e.g., "1759178010641129").
 
-### Header Parameters
+### Headers
 
 - `"anthropic-beta": optional array of AnthropicBeta`
from line 757
 
   For Skill Versions, this is always `"skill_version_deleted"`.
 
+  default: skill_version_deleted
+
 ### Example
 
-```http
+```bash
 curl https://api.anthropic.com/v1/skills/$SKILL_ID/versions/$VERSION \
     -X DELETE \
     -H 'anthropic-version: 2023-06-01' \
from line 769
     -H "X-Api-Key: $ANTHROPIC_API_KEY"
 ```
 
-#### Response
+#### Response (200)
 
 ```json
 {
from line 778
 }
 ```
 
-## Domain Types
+## Domain types
 
 ### Version Create Response
 
-- `VersionCreateResponse object { id, created_at, description, 5 more }`
+- `VersionCreateResponse object`
 
   - `id: string`
from line 822
 
     For Skill Versions, this is always `"skill_version"`.
 
+    default: skill_version
+
   - `version: string`
 
     Version identifier for the skill.
from line 832
 
 ### Version List Response
 
-- `VersionListResponse object { id, created_at, description, 5 more }`
+- `VersionListResponse object`
 
   - `id: string`
from line 872
 
     For Skill Versions, this is always `"skill_version"`.
 
+    default: skill_version
+
   - `version: string`
 
     Version identifier for the skill.
from line 882
 
 ### Version Retrieve Response
 
-- `VersionRetrieveResponse object { id, created_at, description, 5 more }`
+- `VersionRetrieveResponse object`
 
   - `id: string`
from line 922
 
     For Skill Versions, this is always `"skill_version"`.
 
+    default: skill_version
+
   - `version: string`
 
     Version identifier for the skill.
from line 932
 
 ### Version Delete Response
 
-- `VersionDeleteResponse object { id, type }`
+- `VersionDeleteResponse object`
 
   - `id: string`
from line 945
     Deleted object type.
 
     For Skill Versions, this is always `"skill_version_deleted"`.
+
+    default: skill_version_deleted