> ## Documentation Index > Fetch the complete documentation index at: https://docs.protodesk.io/llms.txt > Use this file to discover all available pages before exploring further. # Rewrite a draft > Requires ai:use and conversations:read on a connection owned by a current workspace owner/admin. API keys created before human ownership was recorded must be replaced in Settings. OAuth works through MCP; REST uses API keys. Creates a durable asynchronous run, never sends a message. Poll get_evelin_run, then retrieve the appropriate result. Uses the same workspace knowledge, runtime availability, and credit policy as the app. Identical retries with the same key reuse the run; changed inputs conflict. Private results remain bound to this exact connection. For improve, omit tone, preset and targetLanguage. For polish, choose at most one of tone or preset. For translate, provide targetLanguage and omit tone and preset. ## OpenAPI ````yaml POST /ai/conversations/{conversationId}/actions/rewrite openapi: 3.1.0 info: title: Protodesk API version: 0.1.0 description: > The Protodesk Platform API: sync your customers in, attach your own business objects (orders, bookings, listings) to conversations, post and read messages across channels, and receive every workspace event via signed webhooks or a resumable SSE stream. Authenticate every request with a workspace-scoped API key: `Authorization: Bearer pk_...`. Operations that support retry protection document an `Idempotency-Key` header. Reuse it only with an identical request. List pagination is described on each endpoint. Task-oriented guides: [docs.protodesk.io](https://docs.protodesk.io). servers: - url: https://api.protodesk.io/v1 description: Production - url: http://localhost:8080/v1 description: Local development security: [] tags: - name: Evelin description: >- Human-owned AI connections using the existing Evelin runtime. Generation never sends a customer message. - name: Customers description: People or companies contacting a workspace across channels. - name: Conversations description: Customer conversations attached to channels and external business objects. - name: Messages description: Customer, agent, AI, system, and internal messages inside conversations. - name: Attachments description: Scoped file transfer for messages. - name: Channel identities description: >- The same customer across WhatsApp, email, chat, and more — linked identities per channel. - name: Statuses & priorities description: The workspace's conversation statuses and priority levels. - name: Assignments description: >- Who a conversation has been assigned to, over time. Assign via POST /conversations/{conversationId}/assign. - name: Webhooks description: Webhook subscriptions for receiving workspace events. - name: Realtime description: Server-sent event stream of workspace events. - name: API Keys description: Create, list, and revoke workspace API keys. - name: Account description: The workspace and scopes behind your API key. - name: System description: Service metadata and health endpoints. paths: /ai/conversations/{conversationId}/actions/rewrite: post: tags: - Evelin summary: Improve, polish, or translate a draft with Evelin description: >- Requires ai:use and conversations:read on a connection owned by a current workspace owner/admin. API keys created before human ownership was recorded must be replaced in Settings. OAuth works through MCP; REST uses API keys. Creates a durable asynchronous run, never sends a message. Poll get_evelin_run, then retrieve the appropriate result. Uses the same workspace knowledge, runtime availability, and credit policy as the app. Identical retries with the same key reuse the run; changed inputs conflict. Private results remain bound to this exact connection. For improve, omit tone, preset and targetLanguage. For polish, choose at most one of tone or preset. For translate, provide targetLanguage and omit tone and preset. operationId: rewrite_with_evelin parameters: - name: conversationId in: path required: true schema: type: string - name: Idempotency-Key in: header required: true schema: type: string minLength: 8 maxLength: 128 requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/EvelinRewriteRequest' responses: '202': description: Run accepted or replayed. No message was sent. content: application/json: schema: type: object required: - data properties: data: $ref: '#/components/schemas/EvelinCreatedRun' default: $ref: '#/components/responses/Error' security: - ApiKeyAuth: [] components: schemas: EvelinRewriteRequest: type: object additionalProperties: false required: - mode - draft properties: mode: type: string enum: - improve - polish - translate draft: type: string minLength: 1 maxLength: 20000 targetLanguage: type: string minLength: 1 maxLength: 100 tone: type: string maxLength: 200 preset: type: string enum: - expand - shorten - friendly - professional EvelinCreatedRun: type: object required: - id - kind - status - trigger - conversationId - agentId - agentVersionId - createdAt properties: id: type: string kind: type: string status: type: string trigger: type: object properties: type: type: string conversationId: type: string agentId: type: string agentVersionId: type: string createdAt: type: string format: date-time ErrorEnvelope: type: object required: - error properties: error: $ref: '#/components/schemas/Error' Error: type: object required: - code - message - requestId properties: code: type: string example: route.not_found message: type: string example: Not found requestId: type: string example: req_x6q5vl75f5d53m7oet2k4r5w6a responses: Error: description: >- Error response. All /v1 responses carry RateLimit-Limit, RateLimit-Remaining, and RateLimit-Reset headers. A 429 (rate_limit.exceeded) additionally carries Retry-After. Request bodies exceeding the route-class limit (1KB reads, 64KB writes) return 413 (request.body_too_large). headers: X-Request-Id: $ref: '#/components/headers/RequestId' RateLimit-Limit: $ref: '#/components/headers/RateLimitLimit' RateLimit-Remaining: $ref: '#/components/headers/RateLimitRemaining' RateLimit-Reset: $ref: '#/components/headers/RateLimitReset' Retry-After: $ref: '#/components/headers/RetryAfter' content: application/json: schema: $ref: '#/components/schemas/ErrorEnvelope' headers: RequestId: description: Request id for tracing this request in logs and support. schema: type: string example: req_x6q5vl75f5d53m7oet2k4r5w6a RateLimitLimit: description: >- Request budget for the route class (read or write) applied to this request. schema: type: integer example: 40 RateLimitRemaining: description: Requests remaining in the current budget after this request. schema: type: integer example: 39 RateLimitReset: description: Seconds until the budget refills to its full limit. schema: type: integer example: 1 RetryAfter: description: Seconds to wait before retrying, sent with 429 responses. schema: type: integer example: 1 securitySchemes: ApiKeyAuth: type: http scheme: bearer bearerFormat: Protodesk API key description: > Use a workspace API key in the Authorization header: Bearer pk_.... Older pk_live_ and pk_test_ keys remain valid; their prefixes do not isolate data or select a separate environment. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.