Rewrite

Rewrite

Use this skill as the entry point for Rewrite work and route to the focused sub-skill or package layer.

Route To The Right Sub-skill

• Use sms-best-practices/ when the user wants general SMS architecture guidance, deliverability guardrails, rollout strategy, or a best-practices checklist with Rewrite.
• Use send-sms/ for POST /messages, /messages/batch, /contacts, /segments, /segments/:id/contacts, templates, idempotency, delivery tracking, and outbound SMS workflows.
• Use rewrite-inbound/ for Rewrite webhook ingestion into your app: signature verification, event parsing, dedupe, retries, delivery logs, and downstream routing.
• Use agent-sms-inbox/ for application-owned SMS agents that consume Rewrite events and send replies through Rewrite under strict policy controls.

Quick Start

Send a single SMS via POST /messages:

curl -X POST https://api.rewritetoday.com/v1/messages \
  -H "Authorization: Bearer rw_YOUR_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{"to": "+5511999999999", "content": "Hello from Rewrite!"}'

A 202 response means the message is queued; final delivery state arrives asynchronously via webhooks.

Platform Reality Check

• POST /messages and POST /messages/batch accept either to or contact as the target.
• contact resolves by contact ID or exact project-local name; sending to raw to also ensures a project contact record exists.
• Segments are reusable audiences, not a direct send endpoint; list /segments/:id/contacts first, then send.
• Public sends target Brazilian +55 numbers unless the project has international sending enabled.
• Inline sends use content; template sends use templateId plus variables.
• message.delivered webhook event is currently WIP.
• Cursor pagination uses cursor.persist, cursor.next, and cursor.prev.

Official Rewrite Stack

• Node SDK: @rewritetoday/sdk
• Go SDK: github.com/rewritetoday/golang
• REST transport: @rewritetoday/rest
• Shared contracts: @rewritetoday/types
• Runtime validation: @rewritetoday/zod
• CLI: github.com/rewritetoday/cli
• Docs/source of truth: docs.rewritetoday.com and github.com/RewriteToday/docs
• Examples: github.com/RewriteToday/examples

Default Execution Policy

1. Prefer official SDKs for product code; drop to @rewritetoday/rest only when runtime control matters.
2. Pair transport with @rewritetoday/types or @rewritetoday/zod when you need compile-time or runtime validation.
3. Register webhooks early; do not block business logic on the initial send response. Validate registration by confirming a 2xx from POST /webhooks and testing with a manual event before going live.
4. Model reusable recipients with Rewrite contacts and segments instead of hardcoding campaign target lists in send code. Validate a segment by calling GET /segments/:id/contacts and confirming it returns the expected members before using it in a batch send.
5. Treat quota, rate limits, billing blocks, and webhook retries as first-class production concerns. Retry only 429 and transient 5xx; treat 400, 401, and 403 as non-retryable.