# @pyre/core

Shared types and business logic for PYRE / Prometheus Protocol.

## Purpose

The canonical home for cross-cutting type definitions and (eventually) pure
business logic shared by `apps/*` and the other `packages/*`. Per §13 its
responsibilities are:

- **Classification enums** — `TokenClassification` (§6).
- **Risk rules** — conservative safety-rule types/constants (§7). _Placeholder._
- **Shared DTOs** — request/response shapes for the HTTP API (§14).
- **Receipt schema** — `CleanupReceipt` (§8, §15).
- **Prometheus I/O schema** — `PrometheusInput` / `PrometheusOutput` (§9).

This package carries **real type definitions** but **no application logic** in
the skeleton.

## Modules

- `src/classification.ts` — `TokenClassification` enum.
- `src/dto.ts` — API request/response DTOs.
- `src/receipt.ts` — cleanup receipt schema.
- `src/prometheus.ts` — Prometheus meta-mixer input/output.
- `src/risk.ts` — risk-rule placeholder.

## TODO

- Define concrete risk-rule identifiers, threshold shapes, and pure evaluators.
- Tighten DTO shapes flagged `TODO` once the scan/classify/build pipeline lands.
- Define the concrete token `metadata` JSON shape used by receipts and Prometheus.