osx-review-artifacts

# osx-review-artifacts Read-only, schema-driven audit of the planning artifacts in a change. Emits a routing report — never edits artifacts. Reading is allowed on every concrete file listed in `artifactPaths.<id>.existingOutputPaths`. **Store selection:** If the user names a store (a store is a standalone OpenSpec repo registered on this machine) or the work lives in one, run `openspec store list --json` to discover registered store ids, then pass `--store <id>` on the commands that read or write specs and changes (`new change`, `status`, `instructions`, `list`, `show`, `validate`, `archive`, `doctor`, `context`, `schemas`, `view`). Once selected, treat `--store <id>` as sticky for the rest of the workflow. Without a store, commands act on the nearest local `openspec/` root. Full flag matrix in `references/store-selection.md`. > **Schema-agnostic contract** — see `references/schema-agnostic-contract.md`. Sits in the pre-implementation workflow between artifact creation (`/osc-continue-change`, `/osc-propose`, `/osc-ff-change`) and implementation (`/osc-apply-change`). Use it standalone via `/osx-review <change>` or as part of PHASE0. **Input**: Optionally specify `[<change-name>]` as `$1` (e.g., `/osx-review add-auth`). PHASE0 dispatches the change name automatically. For ad-hoc invocations: if omitted, check if it can be inferred from conversation context; auto-select if only one active change exists; otherwise run `openspec list --json` and prompt via `{{ASK_TOOL}}`. M...