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POST /api/methods and POST /api/workflow-uploads require idempotency_key in the body. The MCP tool create_workflow requires the same key.

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Rules

  • Create one key for one logical request. Use 8 to 200 characters.
  • Store the key before the first request.
  • Reuse it after a timeout, a disconnect, or an uncertain response.
  • Use a new key for a new source.
A repeated key returns the same method with created: false and status 200. The API stores only the SHA-256 of the key. GET /api/workflow-creation-requests/<sha256> returns { found, method } for a key.

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Retry a build

A failed build is retried on the same method with POST /api/methods/:id/retry. Do not send a new key to retry a build.