---
title: "Create a workflow revision"
method: POST
path: "/v1/workflows/{workflow_id}/revisions"
tags: ["workflows"]
---

# Create a workflow revision

`POST /v1/workflows/{workflow_id}/revisions`

## Path parameters

- `workflow_id` string, uuid, required

## Request body

- WorkflowRevisionCreate
  - `name` string, required
  - `description` string, nullable
  - `based_on_revision_id` string, uuid, nullable
  - `instructions` string, required
  - `system_prompt` string, nullable
  - `compilation_strategy` string, nullable
  - `trigger_type` string, nullable
  - `trigger_config` object, nullable
  - `router_config_id` string, uuid, nullable
  - `analyzer_model_settings` ModelChainEntry
    - `model` string, required
    - `config` ModelConfig
      - `temperature` number, nullable
      - `max_tokens` integer, nullable
      - `top_p` number, nullable
      - `stop_sequences` string[], nullable
      - `reasoning_effort` 'none' | 'low' | 'medium' | 'high' | 'xhigh', nullable
      - `request_timeout_ms` integer, nullable
      - `thinking_budget` integer, nullable
  - `router_model_settings` ModelChainEntry
    - `model` string, required
    - `config` ModelConfig
      - `temperature` number, nullable
      - `max_tokens` integer, nullable
      - `top_p` number, nullable
      - `stop_sequences` string[], nullable
      - `reasoning_effort` 'none' | 'low' | 'medium' | 'high' | 'xhigh', nullable
      - `request_timeout_ms` integer, nullable
      - `thinking_budget` integer, nullable
  - `policy_ids` string[], nullable

## Response `201`

Successful Response

- WorkflowRevisionResponse — Full revision response — the compile-poll target (WF-08). Clients poll GET /workflows/revisions/{id} and read ``compilation_status`` + ``compilation_errors`` + ``compiled_graph`` to determine whether an async compile job is done. ``compilation_task_id`` is the Celery task handle the conductor uses to cancel an in-flight compile.
  - `id` string, uuid, required
  - `workflow_id` string, uuid, required
  - `name` string, required
  - `description` string, nullable
  - `instructions` string, required
  - `system_prompt` string, nullable
  - `compiled_graph` object, nullable
  - `quality_report` object, nullable
  - `compilation_errors` string[], nullable
  - `compilation_strategy` string, required
  - `compilation_status` string, required
  - `compilation_task_id` string, nullable
  - `compilation_input_hash` string, nullable
  - `trigger_type` string, required
  - `trigger_config` object, required
  - `router_config_id` string, uuid, nullable
  - `analyzer_model_settings` ModelChainEntry
    - `model` string, required
    - `config` ModelConfig
      - `temperature` number, nullable
      - `max_tokens` integer, nullable
      - `top_p` number, nullable
      - `stop_sequences` string[], nullable
      - `reasoning_effort` 'none' | 'low' | 'medium' | 'high' | 'xhigh', nullable
      - `request_timeout_ms` integer, nullable
      - `thinking_budget` integer, nullable
  - `router_model_settings` ModelChainEntry
    - `model` string, required
    - `config` ModelConfig
      - `temperature` number, nullable
      - `max_tokens` integer, nullable
      - `top_p` number, nullable
      - `stop_sequences` string[], nullable
      - `reasoning_effort` 'none' | 'low' | 'medium' | 'high' | 'xhigh', nullable
      - `request_timeout_ms` integer, nullable
      - `thinking_budget` integer, nullable
  - `policy_ids` unknown[]
    - unknown
  - `tool_input_defaults` object, nullable
  - `tools` WorkflowToolResponse[]
    - `tool` ToolResponse, required
      - `id` string, uuid, required
      - `organization_id` string, uuid, required
      - `name` string, required
      - `description` string, nullable, required
      - `tool_type` 'api_call' | 'call_transfer', required
      - `active_revision_id` string, uuid, nullable, required
      - `active_revision` ToolRevisionResponse
        - `id` string, uuid, required
        - `tool_id` string, uuid, required
        - `name` string, required
        - `description` string, nullable, required
        - `configuration` APICallConfiguration — Configuration for an API_CALL tool, stored in Tool.configuration. Supports ``{{variable}}`` placeholders in url, headers, and body that are resolved at execution time from the tool's input variables and runtime metadata (via ``{{metadata.key}}``).
          - `url` string, required — API endpoint URL — supports {{variable}} placeholders
          - `method` 'GET' | 'POST' | 'PUT' | 'PATCH' | 'DELETE'
          - `headers` HeaderConfig[]
            - `key` string, required
            - `value` string, required
            - `secure` boolean — When true, value is stored encrypted in the database
          - `query_params` QueryParamConfig[]
            - `key` string, required
            - `value` string, required
            - `secure` boolean — When true, value is stored encrypted in the database
          - `body` object
          - `timeout` integer — Request timeout in seconds
          - `variables` VariableDefinition[]
            - `name` string, required
            - `type` 'str' | 'int' | 'float' | 'bool'
            - `description` string, nullable
            - `required` boolean
          - `retry` RetryConfig — Retry configuration — same schema at org, tool, and integration-instance level.
            - `max_retries` integer
            - `base_delay_seconds` number
            - `max_delay_seconds` number
            - `jitter` boolean
        - `transfer_target` TransferTargetView — A call_transfer revision's stored target, surfaced on reads. ``ToolRevisionResponse.configuration`` is api_call-typed and parses to ``None`` for a transfer config (it has no ``url``), so this field carries the destination/mode back for the transfer-target picker. ``label`` / ``when_to_use`` come from the parent Tool's ``name`` / ``description``.
          - `destination` string, required
          - `mode` 'cold' | 'warm'
        - `response_schema` ResponseFieldSelector — Defines which fields to extract from a tool response.
          - `field_mappings` ResponseFieldMapping[]
            - `path` string, required — Dot-path into the response (e.g. 'data.order.id')
            - `alias` string, nullable — Output key name; defaults to full dot-path
        - `status` string, required
        - `has_secrets` boolean
        - `input_defaults` object, nullable
        - `created_by` string, nullable, required
        - `created_at` string, date-time, required
        - `updated_at` string, date-time, required
        - `default_count` integer, required — How many input variables carry an operator *default* (ENG-590).
        - `pinned_count` integer, required — How many input variables are operator-*pinned* (ENG-590).
        - `stale_input_fields` string[], required — Configured variables removed/renamed/retyped by an operator edit.
        - `merged_input_preview` object, required — The input schema with each operator value injected as ``default``.
      - `metadata` object
      - `created_at` string, date-time, required
      - `updated_at` string, date-time, required
    - `tool_revision_id` string, uuid, nullable
  - `knowledge_base_ids` string[]
  - `created_by` string, nullable
  - `created_at` string, date-time, required
  - `updated_at` string, date-time, required

## Other responses

- `400` — Bad request
- `401` — Authentication required
- `422` — Validation Error

---

[API](https://skmtc.net/oneloop-hq/apis/feather-api.md) · [All operations](https://skmtc.net/oneloop-hq/apis/feather-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/oneloop-hq/feather-api/versions/888bdd5c076e/schema)