Create Skill: Anthropic action

Inputs

The fields this action accepts.

Every field can be mapped from an upstream trigger, AI step, table row, or hard-coded literal.

Field	Type	Required	Description
Display Name display_name	string	Required	Human-friendly name shown in the Claude.ai UI and returned in API responses.
SKILL.md URL skill_file_url	string	Required	Public HTTPS URL of the SKILL.md file describing this skill. The executor fetches the URL and uploads its bytes as the skill's primary file. For multi-file skills (with scripts/references), upload a tarball or use the Files API + Skills API directly.

Sample request

{
  "display_name": "e.g. Code Reviewer",
  "skill_file_url": "e.g. https://example.com/skills/code-reviewer/SKILL.md"
}

Returns

{
  "id": "skill_abc123",
  "created_at": "2026-05-13T14:00:00Z",
  "display_name": "Code Reviewer"
}

Use these fields in downstream nodes for routing, logging, or error handling.

FAQ

Questions about Create Skill.

What does the Create Skill action do in Anthropic?

Creates a new Claude Skill from a SKILL.md file. Skills are file-based; Claude reads the SKILL.md content directly. The action fetches your URL, uploads it as files[], and Anthropic returns a skill_id you can reference in subsequent Messages API calls.

What inputs does Create Skill require?

Required: Display Name, SKILL.md URL. Every input accepts a static value or a variable from any upstream node in your workflow.

Can I use dynamic inputs from earlier workflow nodes?

Yes. Any field on this action can pull values from upstream nodes, whether that's a form response, a trigger payload, an AI output, or a lookup result.

What happens if Anthropic returns an error?

The workflow pauses on the failed node, the error message is captured in the run log, and you can retry the run with one click. Auto-retry policies are configurable per workflow with exponential backoff up to 5 attempts.

Does Create Skill support batch operations?

Yes. Run Create Skill inside a Loop node to process arrays. Tiny Command handles Anthropic's rate limits automatically so you don't have to throttle manually.

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