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Northwind Helpline

Northwind Cloud, demo project

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Build a support agent that answers billing questions from our help center and escalates when it is not sure.

First build, v1. Preview is now on v14.

Plan38s$0.12
Database1m 4s$0.18
Agents1m 36s$0.41
Interface2m 32s$0.62
Checks41s$0.13

Built in 6m 31s for $1.46, inside the $1.20 to $2.00 estimate.

Northwind Helpline is ready. 7 conversations are waiting on a human, and 18 are still open.

Code

Every change the agents made, grouped by the request that caused it.

In the full product this opens an editor. This demo is read-only.

42 files, read only. 11 of them open here. The rest are listed so the tree is the real one, not a sample.

/
- README.md
- package.json
- next.config.ts
- tsconfig.json
app
- layout.tsx
- page.tsx
- globals.css
app/chat
- page.tsx
- message.tsx
app/dashboard
- page.tsx
- filters.tsx
- status-chip.tsx
app/inbox
- page.tsx
- conversation.tsx
- transcript.tsx
app/api/chat
- route.ts
app/api/escalations
- route.ts
app/api/invoices
- route.ts
app/api/health
- route.ts
agents
- intake.yaml
- answer.yaml
- grounding-checker.yaml
- escalation-router.yaml
- runtime.ts
lib
- escalations.ts
- help-center.ts
- conversations.ts
- queues.ts
- supabase.ts
- format.ts
db
- schema.sql
- policies.sql
- seed.sql
db/migrations
- 0001_init.sql
- 0002_escalation_reason.sql
tests
- chat.test.ts
- grounding.test.ts
- escalations.test.ts
- inbox.test.ts
public
- favicon.svg
- logo.svg
.github/workflows
- checks.yml

Invoice download links in answers

Asked for: When someone asks for an invoice, give them the download link

app/api/invoices/route.ts+3-0new file

app/api/invoices/route.ts, before on the left and after on the right
After
1	+added	import { NextResponse } from "next/server";
4	+added	export async function GET(request: Request) {
9	+added	return NextResponse.json({ url });

app/api/invoices/route.ts, changes in one column
1	+added	import { NextResponse } from "next/server";
4	+added	export async function GET(request: Request) {
9	+added	return NextResponse.json({ url });

Accept this file Revert this filenot decided yetDemo action. The verdict lives in this page address and is not saved anywhere.

Changes

7be0d15pending, becomes v15Keep answers as specific as the source1 filenot applied yetnot decided yet
Asked for: Keep answers as close to the source as possible
- agents/answer.yaml+2-1not decided yetAccept Revert
Accept all 1 Revert all 1Demo action. Nothing is written: the verdict travels in the page address.
a41c9e2Add escalation reason to dashboard3 files2 days agook accepted, in v12
Asked for: Show me why each conversation was escalated, on the dashboard
- db/schema.sql+1-0ok accepted, in v12
- lib/escalations.ts+4-0ok accepted, in v12
- app/dashboard/page.tsx+3-0ok accepted, in v12
Shipped in v12. There is nothing to decide: rolling this back is a deploy action, on the Deploy tab.
c93f7a0Invoice download links in answers2 files5 hours agook accepted, in v14
Asked for: When someone asks for an invoice, give them the download link
- lib/help-center.ts+3-1ok accepted, in v14
- app/api/invoices/route.ts+3-0ok accepted, in v14
Shipped in v14. There is nothing to decide: rolling this back is a deploy action, on the Deploy tab.

$ npm run checks
> northwind-helpline@0.1.0 checks
> tsc --noEmit && eslint . && vitest run

Type check passed in 2.14s
Lint passed in 1.38s
Test Files  4 passed (4)
     Tests  11 passed (11)

The terminal is not shown on a phone. Editing and running commands on a phone keyboard is a poor experience, so the demo does not pretend otherwise. See D22.