ActionAnthropicUpdated September 2026
How do I upload a Claude Skill?
Short answer: You can create skill in Anthropic by hand from its own interface, but it won’t repeat itself. On TinyCommand, add the Anthropic Create Skill action to a workflow, map its 2 inputs from any upstream app, and it runs automatically every time the trigger fires. No code, and a free tier to start.
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.
Triggered by
Apps that pair well as the trigger for Create Skill.
Any of these apps can fire this action as part of a workflow.
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 run history shows the failed step with its input and the error message Anthropic returned, so you can fix the input and run the workflow again. Automatic retries are built into HTTP steps only, where you can also set your own retry count and delay.
Does Create Skill support batch operations?
Run Create Skill inside a loop to process each item in an array. TinyCommand does not throttle calls for you, so for large arrays add a Delay step if you need to stay within Anthropic's rate limits.
More actions
Other Anthropic actions.
Action
Analyze Image
Sends an image to Claude for analysis (vision), via URL or base64 bytes alongside a text prompt. Use for OCR, chart extraction, accessibility alt-text, or visual QA flows.
ActionCancel Message Batch
Cancels a message batch that is still processing. Already-completed entries in the batch keep their results; in-flight ones get cancelled with no charge.
ActionComputer Use
Sends a message with the computer-use tool, letting Claude take screenshots and click/type on a virtual desktop. Requires Opus 4.x or Sonnet 4.x; you provide the sandboxed desktop environment.
ActionCount Tokens
Counts the number of tokens a Messages API call would consume without actually sending the message. Useful for cost estimation and to stay under context-window limits.
ActionCreate Message
Sends a message to a Claude model and gets a response. The core Anthropic action; supports system prompts, multi-turn conversation, temperature, and stop sequences.
ActionCreate Message Batch
Creates a batch of messages for async processing on the Messages API, with a 50% cost reduction and up to 24-hour turnaround. Perfect for bulk classification, summarization, or labeling jobs.