# Canonical definitions

Each product term is defined once here; task articles link to these anchors.

## Scope and proof boundaries

These definitions describe Meguro’s current public product contract. They do not expand a practice receipt into production, forecasting, certification, or full-platform proof.

## Definitions

| Term | Authoritative definition |
| --- | --- |
| Practice store | A deterministic Shopify-shaped environment with a declared Admin GraphQL surface, modeled commerce behavior, and an explicit scenario and seed. |
| Store clock | The declared control of modeled store time for a run: manual, automatic, or code controlled. |
| Run | One bounded observation window in which an agent acts against one practice store and Meguro records calls and state changes. |
| Receipt | The immutable review artifact for a concluded run: recorded calls, accepted or blocked actions, modeled state changes, proof boundaries, and integrity metadata. |
| Simulation run | One execution for one agent version, one store, one scenario, and one seed; a failure can be the honest result when agent execution occurred. |
| Simulation canvas | The maximum modeled world-time available to one simulation run or continuation chain under the active plan. |
| Observed | Directly recorded from the agent interaction or target system during this run. |
| Modeled | Computed by Meguro’s declared practice-store model from recorded inputs and actions. |
| Not established | A claim the available evidence does not prove and must not imply. |
| Configured Receipt Gate | An optional configured policy over selected receipt facts; the user owns the release decision. |
| Shopify Exam | An eligible captured replay against an actual Shopify development store that tests the recorded API shapes under the declared Exam contract. |
| Workspace API key | A one-time-shown credential beginning meg_sk_ that authenticates an external tool to one workspace. |
| Per-store Admin token | A credential beginning meg_pw_ that targets one practice store through its Shopify-shaped Admin endpoint. |