Claude Platform Docs

Create Skill

beta.skills.create(**kwargs) -> BetaSkill
POST/v1/skills

Create Skill

Parameters
files: Array[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: 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.

betas: Array[AnthropicBeta]

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

One of the following:
String = String
AnthropicBeta = :"message-batches-2024-09-24" | :"prompt-caching-2024-07-31" | :"computer-use-2024-10-22" | 38 more
One of the following:
:"message-batches-2024-09-24"
:"prompt-caching-2024-07-31"
:"computer-use-2024-10-22"
:"computer-use-2025-01-24"
:"pdfs-2024-09-25"
:"token-counting-2024-11-01"
:"token-efficient-tools-2025-02-19"
:"output-128k-2025-02-19"
:"files-api-2025-04-14"
:"mcp-client-2025-04-04"
:"mcp-client-2025-11-20"
:"dev-full-thinking-2025-05-14"
:"interleaved-thinking-2025-05-14"
:"code-execution-2025-05-22"
:"extended-cache-ttl-2025-04-11"
:"context-1m-2025-08-07"
:"context-management-2025-06-27"
:"model-context-window-exceeded-2025-08-26"
:"skills-2025-10-02"
:"fast-mode-2026-02-01"
:"output-300k-2026-03-24"
:"user-profiles-2026-03-24"
:"user-profiles-2026-08-18"
:"advisor-tool-2026-03-01"
:"managed-agents-2026-04-01"
:"cache-diagnosis-2026-04-07"
:"dreaming-2026-04-21"
:"thinking-token-count-2026-05-13"
:"server-side-fallback-2026-06-01"
:"server-side-fallback-2026-07-01"
:"fallback-credit-2026-06-01"
:"fallback-credit-2026-07-01"
:"agent-memory-2026-07-22"
:"mid-conversation-tool-changes-2026-07-01"
:"compact-2026-01-12"
:"computer-use-2025-11-24"
:"mcp-tunnels-2026-06-22"
:"structured-outputs-2025-11-13"
:"task-budgets-2026-03-13"
:"thinking-display-updates-2026-08-18"
:"ce-user-management-2026-07-13"
Returns
class BetaSkill { id, created_at, display_name, 4 more }

Create Skill

require "anthropic"

anthropic = Anthropic::Client.new(api_key: "my-anthropic-api-key")

beta_skill = anthropic.beta.skills.create(files: [StringIO.new("Example data")])

puts(beta_skill)
{
  "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"
}