malformed_body — Malformed request body

What causes it

• The request declared `Content-Type: application/json` but the body was not valid JSON (truncated, trailing comma, single quotes, unquoted keys).
• The body was double-encoded — a JSON string containing JSON — or wrapped in a form field.

How to fix it

1. Validate the body with a JSON linter before sending; most HTTP clients serialise a native object for you (`json=` in requests, `body: JSON.stringify(...)` in fetch).
2. Match `Content-Type` to the encoding actually used. Form-encoded bodies must not claim `application/json`.

Operations that return it

• POST /workflows Create a workflow
• PATCH /workflows/{id} Update a workflow
• POST /workflows/generate Generate a workflow from a prompt
• POST /workflows/{id}/trigger Trigger a workflow
• POST /workflows/{id}/batches Create a batch from N rows
• POST /executions/{id}/review_decisions Approve or deny a paused review
• POST /executions/{id}/review_assignment Claim or unassign a review
• POST /executions/{id}/review_notes Append a review note
• POST /executions/review_bulk_actions Bulk approve / deny / assign_to_me
• POST /webhook_subscriptions Create a webhook subscription
• PATCH /webhook_subscriptions/{id} Update a webhook subscription

Example response

HTTP/1.1 400 Bad Request · Content-Type: application/json

{
  "error": {
    "code": "malformed_body",
    "message": "The request body could not be parsed. Send valid JSON matching the Content-Type header.",
    "details": [],
    "request_id": "6f1c2a3e-8d4b-4c5e-9f0a-1b2c3d4e5f60",
    "doc_url": "https://cascades.crscreditapi.com/docs/api/errors/malformed_body"
  }
}