The declared surface.
The declared v1 subset covers Products, variants, Orders, inventory items, Customers, and read-only fulfillment-order context used by the launch scenarios.
Storefront reads are covered. The shopper endpoint models cart and checkout to the buyer handoff. Payment placement and broad Storefront mutation families are outside the launch claim.
How we know.
Meguro compares responses, status codes, and error bodies against real Shopify. The WIRE-A, WIRE-B, R-5, and R-7 lineage is the proof path behind the public number.
The grammar is proven once per driver against a real store. Practice-store users inherit that proof instead of spending hours on a dev-store setup loop for every run.
Unsupported calls fail loudly with named errors or userErrors. Meguro does not silently pretend a missing Shopify shape worked.
Measured, not promised.
DEMO-QF measured the launch reference workload — the reference-workload timing, measured July 7, 2026 — as 5,945 Shopify API calls, 372 reads, 5,572 writes, 1 blocked call, 365 store days, 24 m 31.5 s sequential. One call at a time, no rate limits.
| Workload | Meguro measurement | Real dev-store comparison |
|---|---|---|
| Light compatibility agent | About 1,500 calls/year; typically 10-20 minutes depending on the agent. | Throttle and round-trip time are the agent's wall-clock floor. |
| Returns triage reference | 5,945 calls in 24 m 31.5 s, sequential — the reference-workload timing, measured July 7, 2026. | Its own calls would be roughly an hour after setup, depending on round trips and backoff. |
| Manufacturing the year | The store year is computed by Meguro and then exercised by the agent. | ~50-70,000 setup API calls, a hard 2-hour throttle floor, realistically a day, and real time still does not pass. |
Shopify's answers, recorded.
The Exam replays the recorded requests on your Shopify development store and records Shopify's answers.
It proves only what Shopify returned for those requests on that development store. It does not decide whether the agent was right; the shared call index aligns the Practice record with the redacted public transcript.
What this does not claim.
Meguro reports pre-tax dollars. It is not a payments, tax, invoice, or settlement engine.
The practice world models demand and operations: orders, returns, stock movement, fulfillment pressure, and agent decisions. It does not claim future merchant demand.
Throttle modes are compatibility tools. The default standard-1000 practice lane uses Meguro’s modeled request-cost bucket; it is not exact Shopify rate-limit parity.