The real ones we ship with.

Every snippet below is in production in one of the five sister products. Copy, adapt, ship. No "5 prompts to make $10k" theater.

import Anthropic from "@anthropic-ai/sdk";

const client = new Anthropic({ apiKey: process.env.ANTHROPIC_API_KEY! });

export async function ask(systemPrompt: string, userPrompt: string) {
  return client.messages.create({
    model: "claude-opus-4-7",
    max_tokens: 4096,
    system: [
      {
        type: "text",
        text: systemPrompt,
        cache_control: { type: "ephemeral" }, // cache the system block
      },
    ],
    messages: [{ role: "user", content: userPrompt }],
  });
}

export type GateResult =
  | { ok: true }
  | { ok: false; gate: string; reason: string };

const GATES = [
  // Identity gates
  "valid_target", "has_consent", "not_blocklisted",
  // Volume gates
  "domain_quota", "channel_quota", "global_rate_limit",
  // Quality gates
  "content_above_threshold", "no_banned_terms", "matches_brand_voice",
  // Timing gates
  "outside_quiet_hours", "respects_cooldown", "scheduled_window_open",
] as const;

export async function runGates(action: Action): Promise<GateResult> {
  for (const gate of GATES) {
    const pass = await checkGate(gate, action);
    if (!pass.ok) return { ok: false, gate, reason: pass.reason };
  }
  return { ok: true };
}

import { SignJWT, jwtVerify } from "jose";

const ISS = "earnkit-account";
const AUD = "earnkit:account"; // distinct per product

export async function signToken(payload: object, ttl = "90d") {
  return new SignJWT(payload)
    .setProtectedHeader({ alg: "HS256" })
    .setIssuedAt()
    .setIssuer(ISS)
    .setAudience(AUD)
    .setExpirationTime(ttl)
    .setJti(crypto.randomUUID())
    .sign(new TextEncoder().encode(process.env.AUTH_SECRET!));
}

export async function verifyToken(token: string) {
  const { payload } = await jwtVerify(
    token,
    new TextEncoder().encode(process.env.AUTH_SECRET!),
    { issuer: ISS, audience: AUD, algorithms: ["HS256"] },
  );
  return payload;
}

// src/lib/pricing.ts — THE source of truth.
export const TIER_PRICE = {
  free:     { monthly: 0,  once: 0 },
  workshop: { monthly: 97, once: 0 },
  cohort:   { monthly: 0,  once: 497 },
} as const;

// tests/pricing-single-source.test.ts — banned literals.
const BANNED = ["$97", "$497"];
test("no hardcoded price strings outside lib/pricing.ts", () => {
  for (const file of allSrcFiles()) {
    if (file.endsWith("lib/pricing.ts")) continue;
    const body = readFileSync(file, "utf8");
    for (const lit of BANNED) {
      expect(body.includes(lit), `${lit} found in ${file}`).toBe(false);
    }
  }
});

interface Signal { type: string; weight: number; recency: number; }

const SIGNAL_WEIGHTS: Record<string, number> = {
  funding_announced_last_30d:   100,
  hiring_for_target_role:        80,
  tech_stack_added_competitor:   60,
  posted_on_pain_point:          50,
  visited_pricing_page:          40,
  // Pure demographic noise — weighted near zero.
  industry_match:                 5,
  size_match:                     3,
};

export function scoreLead(signals: Signal[]): number {
  return signals.reduce((acc, s) => {
    const base = SIGNAL_WEIGHTS[s.type] ?? 0;
    // Decay by recency in days — fresh signals beat stale ones.
    const decay = Math.max(0, 1 - s.recency / 90);
    return acc + base * decay;
  }, 0);
}

:root {
  --paper: #FAFAF4;          /* warm-paper background */
  --ink:   #0A0A0F;
  --a1:    #10B981;          /* emerald */
  --a2:    #F59E0B;          /* amber */
  --a3:    #3B82F6;          /* blue */
  --a4:    #7C3AED;          /* violet */
  --a5:    #F97316;          /* coral */
  --r:     16px;
  --cs-sans: var(--font-geist-sans), Inter, system-ui, sans-serif;
  --cs-mono: var(--font-geist-mono), ui-monospace, monospace;
}

.mod {
  border: 2px solid var(--ink);
  border-radius: var(--r);
  background: #fff;
  position: relative;
  padding: 24px;
}
.mod::before {
  content: ""; position: absolute; top:0; left:0; right:0;
  height: 4px; background: var(--acc, var(--a1));
}

# .github/workflows/ci.yml
name: ci
on: { pull_request: {}, push: { branches: [main] } }
jobs:
  verify:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: pnpm/action-setup@v4
        with: { version: 9 }
      - uses: actions/setup-node@v4
        with: { node-version: 20, cache: pnpm }
      - run: pnpm install --frozen-lockfile
      - run: pnpm typecheck
      - run: pnpm lint
      - run: pnpm test
      - run: pnpm build

import { test, expect } from "vitest";
import { readFileSync } from "node:fs";
import { existsSync } from "node:fs";

test("every CTA on homepage maps to a real route", () => {
  const home = readFileSync("src/app/page.tsx", "utf8");
  const hrefs = [...home.matchAll(/href="([^"]+)"/g)].map((m) => m[1]!);
  for (const href of hrefs) {
    if (href.startsWith("http") || href.startsWith("#")) continue;
    const route = href.split("?")[0]!.replace(/\/$/, "");
    const file = `src/app${route}/page.tsx`;
    const fileAlt = `src/app${route}/route.ts`;
    expect(existsSync(file) || existsSync(fileAlt), `route ${route} not found`)
      .toBe(true);
  }
});

const price = await stripe.prices.retrieve(priceId);
const expectedCents = TIER_PRICE[tier].monthly * 100; // or .once * 100

if (price.unit_amount !== expectedCents) {
  throw new Error(
    `STRIPE_PRICE_MISMATCH: tier=${tier} ` +
    `stripe=${price.unit_amount} expected=${expectedCents}`,
  );
}

// Operator prompt (planning only):
You are the OPERATOR. You do not write code. You produce a numbered
list of independent tasks, each with: a target repo, a clear
acceptance criterion, and a dispatch command. After listing, you stop
and wait for builder reports.

// Builder prompt (execution only):
You are a BUILDER for task #N. The operator gave you exactly one
task. Execute it. Run typecheck + test + build before declaring
DONE. Do not propose new work. Do not edit unrelated files. Report
back with: STATUS, files changed, evidence.

// /api/voice/missed-call (excerpt)
export async function POST(req: Request) {
  const { from, businessId } = await req.json();

  // 1. Resolve business + check we're inside open hours.
  const biz = await db.business.findUnique({ where: { id: businessId } });
  if (!isOpenNow(biz)) return queueFollowUp(from, biz);

  // 2. Create a Retell agent session bound to this business.
  const session = await retell.createSession({
    agentId: biz.retellAgentId,
    metadata: { from, businessId },
  });

  // 3. Outbound dial via Twilio with the Retell SIP URI.
  await twilio.calls.create({
    to: from,
    from: biz.twilioNumber,
    url: `https://api.retellai.com/twilio/${session.id}`,
  });

  return Response.json({ ok: true, sessionId: session.id });
}

const JUDGE = `
You are a strict brand-voice judge for {{brandName}}.

Brand voice profile:
{{voiceProfile}}

Forbidden patterns:
- Em-dashes used as decorative pauses
- "Imagine if..." openings
- Hashtag stacking (>2 in a row)
- Em-quotation around single words for emphasis
- "Unlock", "leverage", "elevate", "delve"

Evaluate this content:
"""
{{content}}
"""

Respond with exactly one JSON object:
{ "pass": true|false, "reason": "one short sentence" }
`;