shopify-admin-subscription-mrr-tracker

Read-only: for stores with subscription products, calculates MRR, ARR, active subscriber count, and rolling churn rate from subscription contracts.

SKILL.md

GitHub

Purpose

For stores selling subscription products via Shopify's native subscriptions, this skill aggregates active subscription contracts into the standard SaaS-style metrics finance teams care about: monthly recurring revenue (MRR), annualized recurring revenue (ARR), active subscriber count, average revenue per subscriber (ARPU), and a rolling churn rate. Read-only — no mutations.

Prerequisites

  • Authenticated Shopify CLI session: shopify store auth --store <domain> --scopes read_own_subscription_contracts
  • API scopes: read_own_subscription_contracts

Parameters

Parameter Type Required Default Description
store string yes — Store domain (e.g., mystore.myshopify.com)
churn_window_days integer no 30 Rolling window for churn calculation (cancellations / starting subscribers)
as_of string no today (UTC) ISO date for "as of" snapshot label
include_paused bool no false Treat PAUSED contracts as active recurring revenue
format string no human Output format: human or json

Safety

ℹ️ Read-only skill — no mutations are executed. This skill is only meaningful if the store sells subscription products. If subscriptionContracts returns 0 contracts, the report exits with $0 MRR — that is the correct answer, not an error.

Recurring Revenue Model

For each subscription contract, the contribution to MRR depends on its billing interval:

billing_amount = sum(line.currentPrice × line.quantity) for each line in contract
mrr_contribution =
  billing_amount                       if interval = MONTH and intervalCount = 1
  billing_amount / intervalCount       if interval = MONTH (e.g., every 3 months → /3)
  billing_amount × 4.345               if interval = WEEK (avg weeks per month)
  billing_amount × 4.345 / intervalCount if interval = WEEK with intervalCount > 1
  billing_amount / 12                  if interval = YEAR
  billing_amount × 30 / intervalCount  if interval = DAY

Aggregations:

  • MRR = Σ mrr_contribution for all ACTIVE (and PAUSED if include_paused) contracts
  • ARR = MRR × 12
  • Active subscribers = unique customer.id count
  • ARPU = MRR / active subscribers
  • Churn rate (period) = contracts cancelled inside churn_window_days ÷ contracts that were active at the start of the window
  • Net new subscribers = new contracts inside the window − cancelled contracts inside the window

Workflow Steps

  1. OPERATION: subscriptionContracts — query Inputs: first: 250, select id, status, createdAt, updatedAt, nextBillingDate, customer { id, displayName }, currencyCode, billingPolicy { interval, intervalCount }, lines { edges { node { currentPrice { amount, currencyCode }, quantity, productId, variantId, title } } }, pagination cursor Expected output: All subscription contracts; paginate until hasNextPage: false

  2. Classify each contract by status: ACTIVE, PAUSED, CANCELLED, EXPIRED, FAILED

  3. Compute mrr_contribution for each active (and paused if requested) contract using the model above

  4. Aggregate MRR / ARR / subscribers / ARPU

  5. For churn: count cancellations where updatedAt is within churn_window_days and status moved to CANCELLED; count contracts that existed and were ACTIVE at as_of - churn_window_days

  6. Build a per-product breakdown so finance can see which subscription SKUs drive MRR

GraphQL Operations

# subscriptionContracts:query — validated against api_version 2025-01
query SubscriptionMRR($after: String) {
  subscriptionContracts(first: 250, after: $after) {
    edges {
      node {
        id
        status
        createdAt
        updatedAt
        nextBillingDate
        currencyCode
        customer {
          id
          displayName
          defaultEmailAddress { emailAddress }
        }
        billingPolicy { interval intervalCount minCycles maxCycles }
        deliveryPolicy { interval intervalCount }
        lines(first: 50) {
          edges {
            node {
              id
              productId
              variantId
              title
              quantity
              currentPrice { amount currencyCode }
            }
          }
        }
      }
    }
    pageInfo { hasNextPage endCursor }
  }
}

Session Tracking

Claude MUST emit the following output at each stage. This is mandatory.

On start, emit:

╔══════════════════════════════════════════════╗
║  SKILL: Subscription MRR Tracker             ║
║  Store: <store domain>                       ║
║  As of: <YYYY-MM-DD>                         ║
║  Started: <YYYY-MM-DD HH:MM UTC>             ║
╚══════════════════════════════════════════════╝

After each step, emit:

[N/TOTAL] <QUERY|MUTATION>  <OperationName>
          → Params: <brief summary of key inputs>
          → Result: <count or outcome>

On completion, emit:

For format: human (default):

══════════════════════════════════════════════
SUBSCRIPTION MRR REPORT  (as of <date>)
  Active contracts:        <n>
  Paused contracts:        <n>
  Cancelled (last <n>d):   <n>
  ─────────────────────────────
  MRR:                     $<amount>
  ARR:                     $<amount>
  Active subscribers:      <n>
  ARPU:                    $<amount>
  Churn rate (<n>d):       <pct>%
  Net new (<n>d):          <n>

  Top subscription products by MRR:
    "<title>"   Subs: <n>   MRR: $<n>
    "<title>"   Subs: <n>   MRR: $<n>

  Output: subscription_mrr_<date>.csv
══════════════════════════════════════════════

For format: json, emit:

{
  "skill": "subscription-mrr-tracker",
  "store": "<domain>",
  "as_of": "<YYYY-MM-DD>",
  "active_contracts": 0,
  "paused_contracts": 0,
  "cancelled_in_window": 0,
  "mrr": 0,
  "arr": 0,
  "active_subscribers": 0,
  "arpu": 0,
  "churn_rate_pct": 0,
  "net_new": 0,
  "currency": "USD",
  "by_product": [],
  "output_file": "subscription_mrr_<date>.csv"
}

Output Format

CSV file subscription_mrr_<YYYY-MM-DD>.csv with columns: contract_id, status, customer_id, customer_email, created_at, next_billing_date, interval, interval_count, billing_amount, mrr_contribution, currency, product_titles

Error Handling

Error Cause Recovery
THROTTLED API rate limit exceeded Wait 2 seconds, retry up to 3 times
subscriptionContracts empty Store has no subscription products Exit cleanly — report $0 MRR; this is the correct value, not an error
Multi-currency contracts Different currencyCode per contract Group MRR per currency; do not sum across currencies — surface separately in output
Pre-paid contracts (maxCycles set) Customer paid upfront for N cycles Still contributes to MRR while ACTIVE, but the contract will end after maxCycles; flag in output

Best Practices

  • This skill is only meaningful if the store actually sells subscription products. If you don't run subscriptions, MRR will be $0 — that's correct.
  • Run on the first day of every month so MRR snapshots align with finance's monthly close cadence.
  • Track MRR week-over-week to catch payment-failure spikes early — FAILED contracts that don't recover become churn within 30 days.
  • Pre-paid annual subscriptions inflate ARR without inflating cash flow in any given month — keep them separate when reporting to investors who want a cash-flow view.
  • Pair with churn-risk-scorer (transactional churn) to triangulate subscription churn vs. one-time-purchase churn — they deserve separate retention strategies.
  • Multi-currency stores: report MRR per currency; converting via spot FX rates produces a misleading number that fluctuates with exchange rates rather than business performance.