AaaS — Email Nurture System Plan

01 — Key Questions Answered

How are emails produced, and with what model?

Three questions answered before the execution plan.

Q1 — How are emails produced?

Emails are not static templates. Each digest is dynamically generated by a Cloud Function that: (1) queries Firestore for new content since last send, (2) fetches structured data from each surface's backend, (3) calls a Claude model on Vertex AI to write the narrative, and (4) renders a React Email template with the AI output. The result is sent via Resend in batch.

Different email types use different generation strategies. The Today daily digest is almost mechanical — GravityClaw already scored and ranked the 5-7 items, the function just formats them. The Weekly Roundup needs Claude to write a cohesive narrative from 6 sources. The nurture sequence needs Claude to personalise tone based on account type and onboarding state.

Q2 — Can we use the Claude Code subscription?

No. Not possible

Claude Code is a coding assistant (this CLI tool). It is not an API endpoint you can call from server code. It has no programmatic interface for backend services. What you want is the Claude API — which is available two ways:

Option A — Anthropic API directly: Separate API key, billed directly to Anthropic. Works fine, but requires managing a separate credential outside your GCP account.

Option B — Claude on Vertex AI: Claude models (Haiku, Sonnet, Opus) available in Google Cloud's Model Garden via the Anthropic ↔ Google partnership. Same GCP billing account, same IAM, same service accounts as Firebase and Cloud Functions. This is the recommended path.

Q3 — Is Vertex AI the correct platform?

Yes. Confirmed

All existing infrastructure runs on GCP: Firebase, Cloud Functions, Cloud Scheduler, Firestore, Cloud Run, GravityClaw (already uses Vertex AI Gemini). Adding Claude on Vertex AI means zero new billing relationships, zero new secrets to rotate, and sub-50ms latency from Cloud Functions to the model. The GravityClaw scanner already uses @google-cloud/vertexai — the same SDK adds Claude access with one additional model identifier.

Additionally, Gemini continues to run scoring/ranking (it excels at structured classification). Claude handles narrative writing (it excels at coherent prose). Both run on the same Vertex AI endpoint.

02 — Model Routing

Right model for every email type

Running Opus on every email would be wasteful and slow. Model selection follows the 60/30/10 principle: deterministic formatting uses no LLM; summaries use Haiku; narrative writing uses Sonnet; strategic content uses Opus (rare).

Email Product	Frequency	AI Task	Model	Rationale
Today — Daily AI Picks	Daily	Format pre-scored items into email HTML	Gemini Flash	GravityClaw already ranks items. Just templating — no prose generation needed.
Academy — Daily Pack Nudge	Daily	1-line personalised nudge + streak status	Claude Haiku	Short output, high volume, low stakes. Haiku is 3× cheaper than Sonnet.
Blog — Weekly Channel Digest	Weekly	Summarise top 10 new entities per subscribed channel	Claude Haiku	Structured summaries of existing content. No original thinking needed.
Platform — Weekly Usage Digest	Weekly	Write task accomplishment narrative from structured metrics	Claude Sonnet	Needs coherent "what your agents did this week" narrative — not just data dump.
Quest — Daily Job Alerts	Daily	Match jobs to user profile, write 1-line relevance note per role	Claude Haiku	Mechanical matching with short output. Fast, cheap, high volume.
Academy — Weekly Challenge Digest	Weekly	Write challenge summary + leaderboard narrative	Claude Haiku	Structured challenge data → short formatted summary.
Forum — Weekly Digest	Weekly	Summarise top threads, best prompts, tool reviews	Claude Sonnet	Community content summarisation needs nuance and tone.
Weekly Roundup (cross-surface)	Weekly	Write cohesive narrative linking content from 6 surfaces	Claude Sonnet	Multi-source synthesis with consistent voice. Core flagship email — invest here.
Boutique — Monthly Case Study	Monthly	Narrativise implementation case from structured brief	Claude Sonnet	Story-driven content, low volume — Sonnet quality warranted.
Monthly Ecosystem Update	Monthly	Write strategic product narrative + roadmap teaser	Claude Sonnet	Brand voice, low volume, high visibility. Sonnet delivers with review.
Lifecycle Nurture — Welcome	Triggered	Personalised welcome by account type + interests	Claude Sonnet	First impression. Personalisation matters. One-time per user.
Lifecycle Nurture — Day 7–30	Triggered	Contextual nudges based on behaviour gaps	Claude Haiku	Short, targeted messages. Pattern-driven not creative. Haiku sufficient.

Haiku 4.5

Cheapest

Use for: high-volume mechanical tasks, short outputs, structured formatting, daily sends with 1,000+ recipients. ~3× cheaper than Sonnet, ~15× cheaper than Opus.

Sonnet 4.6

Default

Use for: narrative writing, multi-source synthesis, personalisation, brand voice, weekly and monthly digests. Best quality-to-cost ratio for prose generation.

Opus 4.6

Strategic Only

Not used for bulk email. Reserved for one-time tasks: designing new email templates, reviewing nurture strategy, generating onboarding copy. Never in scheduled functions.

03 — Vertex AI Integration

One GCP account. Two model families.

Gemini handles ranking, classification, and structured extraction. Claude handles prose, personalisation, and narrative synthesis. Both accessed via the same Vertex AI SDK already in use by GravityClaw.

Already Running — Gemini on Vertex AI

Active

GravityClaw uses @google-cloud/vertexai with Gemini Flash for: scoring news items by novelty × impact × clarity, classifying AI entities into the 16 blog types, ranking content for the Today digest.

Keep Gemini for: classification, scoring, structured JSON extraction, ranking, high-volume low-latency tasks.

Add — Claude on Vertex AI

New

Via Anthropic ↔ Google partnership, Claude Haiku, Sonnet, and Opus are available in Vertex AI Model Garden. Same SDK, same IAM service account, same GCP billing.

Use Claude for: prose generation, narrative synthesis, personalisation, email copy, nuanced summarisation, brand-consistent writing.

Implementation in Cloud Functions

// functions/src/lib/ai-client.ts
import { VertexAI } from "@google-cloud/vertexai";

const vertex = new VertexAI({
  project: process.env.FIREBASE_PROJECT_ID,
  location: "us-central1",
});

// Gemini — for scoring/classification (already in use)
export const geminiFlash = vertex.getGenerativeModel({
  model: "gemini-2.0-flash",
});

// Claude — for prose/narrative (new, same SDK pattern)
export const claudeHaiku = vertex.getGenerativeModel({
  model: "claude-haiku-4-5@20251001",
});

export const claudeSonnet = vertex.getGenerativeModel({
  model: "claude-sonnet-4-6@20250514",
});

Why NOT Anthropic API directly?

Decision Rationale

Running Anthropic API separately would mean: a separate API key in Secret Manager, separate billing account, separate rate limit management, and higher latency from us-central1 to api.anthropic.com. Vertex AI keeps everything in the same GCP project with unified observability, IAM, and billing — which is already set up.

04 — Account Type Taxonomy

12 identity types, multi-type support

Expanded from the current flat 5-type system. Users can hold multiple types simultaneously. Primary type drives personalisation; additional types unlock surface access.

Builders

founder — building a startup, AI workforce buyer
builder — developer building AI products
creator — content creator using AI for production

Operators

business — SMB/corporate AI automation buyer

consultant — implements AI for clients

enterprise — large org, procurement cycle

Capital & Knowledge

investor — VC, angel, AI deal flow

accelerator — program operator, cohort-based

learner — upskilling, early career

researcher — academic, analyst, knowledge-first

Primary surface per account type (★★★ = core)

Type	Platform	Academy	Blog	DIY	Toolbox	Boutique	Business	Quest
founder	★★★	★★	★★	★★	★★★	★★	★★★	—
builder	★★	★★★	★★★	★★★	★★	—	—	—
creator	★★	★★	★★	★★★	★★	—	—	—
business	★★★	—	★	—	★★★	★★★	★★	—
consultant	★★	★★	★★	★★	★★	★★★	—	—
investor	★★	—	★★	—	—	—	★★★	—
learner	—	★★★	★★	★★	★★	—	—	★★★
researcher	—	★★	★★★	★★★	—	—	—	—

05 — Interest Taxonomy

27 topic categories across 3 domains

Users select interests during activation Step 3. Persona bundles pre-select sensible defaults. Interests directly map to which sections appear in the Weekly Roundup and which channels are included in the Blog digest.

AI Knowledge (blog-sourced)

🤖 ai_models — LLM releases, benchmarks

🔧 ai_tools — New tools, APIs, SDKs

🕹️ ai_agents — Agent frameworks

⚙️ ai_automation — Scripts, workflows

💬 prompt_engineering — Context design

🏗️ ai_infrastructure — MLOps, hardware

🛡️ ai_safety — Ethics, governance

📄 ai_research — Papers, datasets

👁️ computer_vision — Vision models

🎙️ speech_audio — TTS, STT, audio

💻 ai_code — Coding assistants

📊 ai_business — Strategy, ROI

Product Interests (surface-sourced)

📰 daily_ai_picks — aaas.today digest

🎓 academy_packs — Action packs

📋 toolbox_templates — Business templates

📦 knowledge_packages — DIY packages

⚡ vault_skills — New vault skills

🚀 platform_updates — Feature releases

🏗️ builders_updates — Skill slams

🌐 community_forum — Forum digest

📅 weekly_roundup — Cross-surface weekly

Career & Business

💼 job_alerts — Quest job board

📈 career_development — CV tips

📸 ai_photography — Pics tips

🚀 startup_resources — Cloud credits

🤝 consulting_cases — Boutique stories

💰 investor_intel — Deal flow

Persona Bundles

Founder ai_agents, ai_business, toolbox_templates, startup_resources

Builder ai_tools, ai_code, ai_infrastructure, vault_skills, daily_ai_picks

Business ai_business, toolbox_templates, consulting_cases, weekly_roundup

Researcher ai_research, ai_models, ai_safety, computer_vision

Learner academy_packs, prompt_engineering, community_forum, job_alerts

06 — Free Subscription Offers Per Surface

What every surface provides when fully live

Surface	URL	Free Digest Offer	Frequency	Status	Model
Today	aaas.today	5-7 curated AI picks, GravityClaw-scored	Daily	Infra built	Gemini Flash
Blog	aaas.blog	Top 10 new entities per subscribed channel	Weekly	Live	Claude Haiku
Academy	aaas.academy	Daily pack nudge + weekly challenge	Daily + Weekly	Live	Claude Haiku
Platform	agents-as-a-service.com	Agent task accomplishments + credits used	Weekly	Live	Claude Sonnet
Toolbox	aaas.blog/toolbox	New templates + featured pick	Monthly	Live	Claude Haiku
Quest	aaas.quest	AI-adjacent job alerts matching profile	Daily or Weekly	Coming Q2	Claude Haiku
Forum	aaas.forum	Top threads, best prompts, tool reviews	Weekly	Q3 2026	Claude Sonnet
Boutique	aaas.boutique	One implementation case study	Monthly	Coming Q2	Claude Sonnet
Builders	aaas.builders	New skill slams + project showcases	Weekly	Coming Q2	Claude Haiku
Business	aaas.business	Investor intel + startup funding news	Weekly	Coming Q2	Claude Haiku
Weekly Roundup	All surfaces	Best of everything above in one email	Sunday	Build First	Claude Sonnet
Monthly Update	All surfaces	Ecosystem news, new surfaces, roadmap	1st of month	Build First	Claude Sonnet

07 — Digest Architecture

Three layers, one coherent system

The system is layered so users can receive exactly as much as they want — from one weekly email covering everything to individual per-surface digests at their preferred frequency.

Layer 1 — Surface Digests

          Each surface sends its own email on its own schedule. Users opt into individual surfaces. Maximum granularity, maximum noise if over-subscribed.

Layer 2 — Weekly Roundup

One Sunday email aggregating the best item from each subscribed surface. The "newspaper" option — recommended for most users. Suppresses Layer 1 for that week if preferred.

Layer 3 — Monthly Ecosystem

Broadcast to all opted-in users on the 1st. New surfaces, major features, top stats, one case study, roadmap teaser. Brand health email — low frequency, high quality.

Nurture Lifecycle Sequences (5 account-type tracks)

Day	Founder	Builder	Business	Researcher	Learner
D+0	Context generating	Dev context ready	Business context ready	Research context ready	Learning path starts
D+1	First agent task CTA	DIY intro — GitHub repos	Select email task CTA	Blog intro — 2,847 entities	Day 1 Academy pack
D+3	Vault highlight — founder skills	Vault — top 5 technical	Toolbox — top 10 ops templates	Channel setup — personalised feed	Streak nudge (Day 3!)
D+7	Toolbox — 10 founder templates	Context Engineering crash course	Case study — [company] automated [process]	Paper highlight — top 3 this week	Weekly challenge announce
D+14	Case study — 3 hires replaced	Builders — first skill slam	Boutique CTA — full workforce	DIY — research papers to study packs	Quest — AI jobs now hiring
D+21	Platform new features	Forum waitlist	Weekly digest sample	Benchmark update	Progress — X packs in 3 weeks
D+30	Strategy call CTA	Skill review — what are you building?	Upgrade to boutique path	API intro — build your pipeline	Forum waitlist — Q3 launch

08 — Email Structure Previews

What each digest looks like

Today — Daily AI Picks

picks@aaas.today — Daily · 08:00 CET

📡 5 AI Picks — Thursday 9 April

GPT-5 benchmark leak: 87.3% on MMLU
Source: X/Twitter · Score: 94/100 · Why it matters: First credible evidence of GPT-5 capability ceiling

Mistral releases Codestral 2.0
Source: Mistral Blog · Score: 88/100 · 32k context, MIT licensed

Anthropic publishes model card for Claude Opus 4.6
Source: Anthropic · Score: 85/100

Unsubscribe from Today · Manage all preferences

Weekly Roundup — Cross-Surface

roundup@aaas.select — Sunday · 08:00 CET

🌐 Your AaaS Week — 7 April

📡 Top Pick This Week

Anthropic releases Claude claude-sonnet-4-6 with 200k context

📚 Knowledge Index

3 new agent frameworks indexed · 12 model comparisons updated

🎓 Academy

This week: Context Engineering for Founders · Your streak: 14 days

📋 Toolbox

Featured: AI-Powered Sales Pipeline Template (category: Sales & Revenue)

⚡ Your Agents

3 tasks completed · 47 credits used · 2 deliverables ready

Unsubscribe from Roundup · Manage preferences · Unsubscribe all

09 — Military Execution Plan

OPORDER: Email Nurture System

Five phases. Each phase has a clear objective, specific tasks, and measurable exit criteria. No phase begins before the previous phase's exit criteria are met.

P1

Foundation — Identity & Data Model

Week 1–2 · Prerequisite for everything

Critical Path No External Deps

Extend AccountType union (12 types) in auth-core/types.ts

Replace founder|business|partner|investor|user with the 12-type taxonomy. Add AccountTypeProfile interface for multi-type support. Update all existing guards.

auth-core/types.ts~2h
Add InterestTopic union (27 categories) and DigestPreferences interface

Add all interest categories, DigestFrequency type, SurfaceDigestPreference, and full DigestPreferences interface to auth-core/types.ts.

auth-core/types.ts~2h
Create EmailSubscription and SurfaceSubscription interfaces

New Firestore collection interfaces for email_subscriptions and users/{id}/surface_subscriptions subcollection. Add to auth-core/types.ts.

auth-core/types.ts~1h
Clerk publicMetadata write server action

Create apps/platform/src/app/actions/account.ts with setAccountType(), setInterests(), setDigestPreferences(). Uses clerkClient().users.updateUserMetadata() on server only.

apps/platform/src/app/actions/account.ts~3h
Firestore: create email_subscriptions collection with composite indexes

Add to firestore.indexes.json: (subscriptionType + status + lastSentAt), (userId + status). Create collection group index for surface_subscriptions subcollection.

firestore.indexes.json~1h
Update activate-client.tsx: add account type + interest selection steps

Insert Step 1 (account type selection) and Step 3 (surface interest picker with persona bundles) into the existing 5-step onboarding flow. Step 3 shows grouped surfaces with frequency selector.

apps/platform/src/app/activate/activate-client.tsx~5h

Exit Criteria — Phase 1

New user completes onboarding → accountType written to Clerk publicMetadata → interests written to Firestore → at least one email_subscriptions document created → all TypeScript types compile.

P2

First Emails — Core Digests Live

Week 3–4 · First user value delivery

High Impact Requires Vertex AI Setup

Add Claude on Vertex AI to functions/src/lib/ai-client.ts

Extend existing Vertex AI client to add claudeHaiku and claudeSonnet model handles. Enable Claude API access in GCP project via Model Garden. No new secrets — uses existing service account.

functions/src/lib/ai-client.ts~2h
Build Today daily digest Cloud Function

Scheduled: 06:30 UTC daily. Queries email_subscriptions for type=today_daily, status=active. Fetches top 5-7 GravityClaw-scored items from Firestore. Renders React Email template. Sends via Resend batch. Updates lastSentAt.

functions/src/email/today-digest.ts~6h
Build Blog weekly channel digest Cloud Function

Scheduled: Monday 06:00 UTC. Per subscriber: fetches new entities since lastSentAt filtered by their subscribed channels. Claude Haiku summarises each entity in 1-2 sentences. Renders template. Sends via Resend.

functions/src/email/blog-weekly-digest.ts~8h
Build Weekly Roundup Cloud Function

Scheduled: Sunday 07:00 UTC. For each subscriber: fetches best item from each of their subscribed surfaces. Claude Sonnet writes a cohesive 200-word intro narrative. Renders cross-surface template. This is the flagship email — invest in template quality.

functions/src/email/weekly-roundup.ts~10h
React Email templates (4 templates)

Build: today-daily.tsx, blog-weekly.tsx, weekly-roundup.tsx, monthly-ecosystem.tsx using React Email. Match AaaS dark brand. Per-subscription unsubscribe link in every footer using subscription-level token.

emails/templates/~8h
Connect Resend: configure from addresses per surface

Set up: picks@aaas.today, digest@aaas.blog, roundup@aaas.select. Verify DNS for all 3 sending domains in Resend. Store API key in Google Cloud Secret Manager.

Secret Manager + Resend Dashboard~2hNeeds DNS

Exit Criteria — Phase 2

Today digest fires at 06:30 UTC and 10+ test subscribers receive it. Blog digest fires Monday and renders channel-filtered content. Weekly Roundup fires Sunday with Claude Sonnet narrative. All sent via Resend, all recorded in email_digest_runs.

P3

Nurture Sequences — Lifecycle Automation

Week 5–6 · Activation and retention

Depends on Phase 1

Account type-aware welcome email (replaces flat welcome)

On user creation trigger: read accountType from Firestore, select nurture track, send Claude Sonnet-generated welcome tailored to that type. Template: emails/templates/nurture/welcome.tsx with conditional sections per account type.

functions/src/email/nurture/welcome.ts~6h
Cloud Scheduler: nurture sequence dispatcher

Daily function that queries users where (now - createdAt) matches a nurture day (D+1, D+3, D+7, D+14, D+21, D+30) AND no email sent for that day yet. Selects correct template by account type. Sends via Resend. Marks nurtureDay as sent in user document.

functions/src/email/nurture/dispatcher.ts~10h
Academy daily nudge + weekly challenge Cloud Functions

Daily 07:00 UTC: send pack nudge to academy subscribers who haven't opened today's pack yet (Firestore read). Weekly Monday: send challenge announcement. Claude Haiku generates the 1-line personalised nudge.

functions/src/email/academy-daily.ts~5h
Platform weekly usage digest Cloud Function

Sunday 07:30 UTC: for active platform users, fetch task completions + credit usage for the week. Claude Sonnet writes 3-sentence "what your agents did" narrative. Send via Resend from platform@agents-as-a-service.com.

functions/src/email/platform-weekly.ts~5h

Exit Criteria — Phase 3

New founder signup triggers founder welcome email within 5 minutes. D+1, D+3, D+7 emails fire on schedule for test users. Academy nudge fires daily without duplicates. Platform usage digest fires Sunday.

P4

Self-Service — User Controls

Week 7–8 · Preference management & unsubscribe

User-Facing Depends on Phase 1+2

Overhaul /email-preferences page

Replace 7 boolean toggles with full DigestPreferences UI: per-surface frequency selector (off/daily/weekly/monthly), Weekly Roundup toggle, Monthly Update toggle, timezone selector, preferred send time picker.

apps/platform/src/app/email-preferences/page.tsx~8h
Account type self-service at /preferences

Add "I am a..." multi-select and interest picker (grouped by domain) to /preferences or /dashboard/settings. Changes call setAccountType() and setInterests() server actions, sync to Clerk unsafeMetadata + Firestore.

apps/platform/src/app/preferences/page.tsx~6h
Per-subscription unsubscribe tokens and handler

Each email_subscriptions document gets its own unsubscribeToken. Footer links: "Unsubscribe from [this digest]" uses subscription-level token. Handler at /api/unsubscribe/[token] sets that subscription to status=unsubscribed without touching others.

apps/platform/src/app/api/unsubscribe/[token]/route.ts~4h
Monthly Ecosystem Update Cloud Function

1st of month 08:00 UTC: compile stats from all surfaces (entities indexed, packs completed, templates used, tasks run), pull latest surface launch news, Claude Sonnet writes the narrative. Sends to all globalOptIn users.

functions/src/email/monthly-ecosystem.ts~6h

Exit Criteria — Phase 4

User can change account type from preferences UI. Email preferences shows per-surface controls. Unsubscribe from one digest does not cancel others. Monthly update fires 1st of month.

P5

Observability — Analytics & Optimisation

Week 9–10 · Know what's working

Depends on P1–P4

Resend webhook → Firestore: open/click tracking

Webhook endpoint at /api/webhooks/resend receives email.opened and email.clicked events. Writes to email_subscriptions (lastOpenedAt, openCount) and email_digest_runs (openRate, clickRate). Used to suppress inactive subscribers after 60 days.

apps/platform/src/app/api/webhooks/resend/route.ts~4h
Email analytics panel in aaas-design.web.app

Add /email-analytics route to design deliveries app. Shows: open rates per digest type, unsubscribe rates, top-performing content, subscriber growth per surface, account type distribution.

apps/design-deliveries/email-analytics.html~6h
Inactive subscriber suppression

Monthly Cloud Function: query subscriptions where (lastOpenedAt is null OR lastOpenedAt < 60 days ago). Set status=paused. Send one reactivation email before pausing. Prevents Resend sending score degradation.

functions/src/email/suppress-inactive.ts~3h

Exit Criteria — Phase 5

Open rate visible per digest type in analytics panel. Inactive subscribers paused automatically. Resend sending reputation protected. System runs autonomously with zero manual intervention required.

10 — Data Schema

Clerk metadata + Firestore extensions

Clerk publicMetadata (JWT, client-readable)
interface ClerkPublicMetadata {
  accountType: AccountType;       // primary
  accountTypes: AccountType[];    // multi-type
  ecosystemTier: "free"|"pro"|"enterprise";
  isFounder: boolean;             // quick gate
  isTeam: boolean;
  onboardingComplete: boolean;
  onboardingStep: number;         // 0–6
  activeSurfaces: SurfaceId[];
}

Clerk unsafeMetadata (user-writable)

interface ClerkUnsafeMetadata {
  persona: BlogPersona;
  interests: InterestTopic[];
  timezone: string;               // IANA
  digestPreferences: {
    weeklyRoundup: boolean;
    monthlyUpdate: boolean;
    preferredSendTime: "morning"|
                       "midday"|
                       "evening";
    surfaces: Record<SurfaceId,
      DigestFrequency>;
  };
}

Firestore: email_subscriptions/{subscriptionId}

interface EmailSubscription {
  userId: string;
  email: string;
  subscriptionType: "today_daily" | "blog_weekly" | "academy_daily" |
    "academy_weekly" | "platform_weekly" | "quest_daily_jobs" |
    "forum_weekly" | "boutique_monthly" | "weekly_roundup" | "monthly_ecosystem";
  frequency: DigestFrequency;     // "off"|"daily"|"weekly"|"monthly"
  status: "active" | "paused" | "unsubscribed";
  topicFilters: InterestTopic[];  // [] = all
  createdAt: Timestamp;
  lastSentAt: Timestamp | null;
  lastOpenedAt: Timestamp | null;
  openCount: number;
  unsubscribeToken: string;       // per-subscription, 32-char random
}

11 — Success Metrics

What good looks like

Open Rate Target

40%

Industry avg is 22%. Niche AI audience should beat this.

Unsub Rate Max

<1%

Per-digest unsubscribe keeps global rate low.

Subscriber Growth

10%

Month-over-month across all digest types combined.

Nurture Activation

30%

Users who send first task within 7 days of sign-up.

Daily Operational Cadence (when all phases live)

06:30 UTC Daily

Today Digest fires

GravityClaw items formatted, sent via Resend to today_daily subscribers.

07:00 UTC Daily

Academy Nudge fires

Claude Haiku generates 1-line nudge for users who haven't opened today's pack.

07:30 UTC Daily

Nurture Dispatcher fires

Sends D+1/3/7/14/21/30 emails to users hitting those day milestones.

06:00 UTC Monday

Blog Weekly Digest fires

New entities since last Monday, filtered by subscribed channels, summarised by Claude Haiku.

07:00 UTC Sunday

Weekly Roundup fires

Claude Sonnet synthesises content from all subscribed surfaces into one cohesive email.

07:30 UTC Sunday

Platform Weekly Digest fires

Claude Sonnet writes "what your agents did this week" for active platform users.

08:00 UTC 1st of month

Monthly Ecosystem Update fires

Claude Sonnet writes ecosystem narrative to all opted-in users. New surfaces, features, roadmap.

Email NurtureSystem Plan

Email Nurture
System Plan