Claude Platform Docs

Create Skill

$ ant skills create
POST/v1/skills

Create Skill

Parameters
--file: 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.

--display-name: optional string

Human-readable, single-line label for the Skill. Maximum 255 characters. Always set: derived from the SKILL.md frontmatter name when omitted at creation. Not unique.

Returns
skill: object{ id, created_at, display_name, 4 more }
id: string

Unique identifier for the skill.

The format and length of IDs may change over time.

created_at: string

ISO 8601 timestamp of when the skill was created.

formatdate-time
display_name: string

Human-readable, single-line label for the Skill. Maximum 255 characters. Always set: derived from the SKILL.md frontmatter name when omitted at creation. Not unique.

latest_version_id: string

ID of the newest Skill Version — what latest references resolve to. Always set: a Skill holds at least one version.

source: object{ type }

Where the Skill comes from.

Possible values:

  • "custom": authored by the platform user; private to their workspace
  • "anthropic": published by Anthropic; shared and read-only
  • "anthropic_example": Anthropic-published sample Skill
  • "plugin": resolved from an installed plugin
type: "custom" or "anthropic" or "anthropic_example" or "plugin"

Where the Skill comes from.

Possible values:

  • "custom": authored by the platform user; private to their workspace
  • "anthropic": published by Anthropic; shared and read-only
  • "anthropic_example": Anthropic-published sample Skill
  • "plugin": resolved from an installed plugin
One of the following:
"custom"
"anthropic"
"anthropic_example"
"plugin"
type: "skill"

Object type.

For Skills, this is always "skill".

updated_at: string

ISO 8601 timestamp of when the skill was last updated.

formatdate-time

Create Skill

ant skills create \
  --api-key my-anthropic-api-key \
  --file 'Example data'
{
  "id": "skill_01JAbcdefghijklmnopqrstuvw",
  "created_at": "2024-10-30T23:58:27.427722Z",
  "display_name": "display_name",
  "latest_version_id": "latest_version_id",
  "source": {
    "type": "custom"
  },
  "type": "skill",
  "updated_at": "2024-10-30T23:58:27.427722Z"
}
Returns Examples
{
  "id": "skill_01JAbcdefghijklmnopqrstuvw",
  "created_at": "2024-10-30T23:58:27.427722Z",
  "display_name": "display_name",
  "latest_version_id": "latest_version_id",
  "source": {
    "type": "custom"
  },
  "type": "skill",
  "updated_at": "2024-10-30T23:58:27.427722Z"
}