Prompt library

Sequence Diagram Prompts

Sequence diagrams are easiest to generate when the prompt names actors, the order of requests, and any alternate or failure paths. These prompts give you a clean base for auth flows, API interactions, and service-to-service messaging.

Each prompt here is built for AI-native technical diagrams in AIDrawIO. Start from plain English, get draw.io-compatible output, then keep editing as XML or export SVG and PNG.

Copyable prompt blocks

Grab a proven prompt quickly instead of composing from scratch every time.

Refinement-ready

Each prompt includes a follow-up so you can add boundaries, detail, and review context.

Editable outputs

Generated diagrams stay compatible with draw.io workflows instead of locking you into images.

Copy and generate

Copyable prompts for sequence diagram prompts

Use one prompt as-is, or combine it with the follow-up prompt to add labels, constraints, security detail, or failure handling.

Prompt 1

OAuth login flow

Prompt

Create a UML sequence diagram for OAuth 2.0 PKCE login: user in browser, frontend app, authorization server, and resource API. Show authorization request, code exchange, token validation, refresh token rotation, and expired refresh token error path.

Why this prompt works

It names the exact actors and important alternate path, which makes the diagram more useful than a happy-path-only version.

Follow-up prompt

Add an MFA challenge branch after primary authentication and highlight token storage rules in the frontend.
Prompt 2

Payment authorization and webhook

Prompt

Draw a sequence diagram for card payment processing: customer app, backend API, payment processor, fraud service, and webhook receiver. Include payment intent creation, authorization, capture, asynchronous webhook confirmation, and failed payment retry flow.

Why this prompt works

It combines synchronous payment requests with asynchronous webhook behavior, which is where many payment diagrams become incomplete.

Follow-up prompt

Add refund flow and dispute event handling as alternate branches.
Prompt 3

Internal API request chain

Prompt

Generate a sequence diagram for an internal API request: client app, API gateway, auth service, order service, inventory service, payment service, and notification service. Show validation, synchronous calls, event publication, and final response.

Why this prompt works

It captures multiple service hops and an event after the main transaction, which helps show orchestration clearly.

Follow-up prompt

Add a timeout branch where the payment service fails and the order is rolled back.

How to use these prompts

From prompt to editable diagram

1

Pick a base prompt

Choose the closest prompt for your architecture, workflow, or schema.

2

Generate in AIDrawIO

Paste it into the app and create the first structured draft fast.

3

Refine with follow-up

Add more scope like failure paths, zones, labels, or compliance detail.

4

Export and share

Keep draw.io-compatible XML or export SVG and PNG for docs and review.

Related tools

Jump into a specialized generator when you know the exact diagram category.

More prompt pages

Use adjacent prompt libraries when your diagram crosses categories.

FAQ

Common questions about sequence diagram prompts

What should I include in a sequence diagram prompt?

List the actors or services, the order of messages, and any alternate, failure, or asynchronous paths you want represented.

Can AI generate UML sequence diagrams from plain English?

Yes. AIDrawIO can generate sequence diagrams for auth flows, APIs, payments, and service interactions from natural-language prompts.

Should I include failure cases?

Yes. Failure and alternate paths make sequence diagrams much more useful for engineering reviews and documentation.