alt/agent-ops/rules/project/domain/domain-model/rules.md

domain	last_rule_review_commit	last_rule_updated_at
domain-model	1f1527d7c6	2026-06-01

domain-model

목적 / 책임

ALT의 핵심 business vocabulary를 Go 타입으로 표현한다. market, instrument, price, bar, backtest run, strategy, portfolio state, and analysis result concepts stay transport- and storage-free here.

포함 경로

• packages/domain/ - shared Go domain model module
• packages/domain/market/ - market, venue, currency, instrument, OHLCV bar types
• packages/domain/backtest/ - backtest run spec, run state, result types

제외 경로

• packages/contracts/ - external protobuf schema representation
• services/api/ - socket transport and API boundary
• services/worker/ - execution and scheduled job boundary

주요 구성 요소

• market.Instrument - tradable instrument identity and provider symbol mapping
• market.UniverseSelector - provider import universe vocabulary
• market.Bar - timeframe OHLCV market data point
• backtest.RunSpec - strategy, market, timeframe, period inputs for a run
• backtest.Run - backtest lifecycle state
• backtest.Result - backtest financial summary, trades, positions, summary metrics, and equity curve
• backtest.Strategy, backtest.StrategyInput, backtest.OrderIntent - strategy execution vocabulary
• backtest.PortfolioState, backtest.Fill, backtest.Position - portfolio accounting state and fill application
• backtest.TotalReturn - decimal return calculation helper backed by rational arithmetic

유지할 패턴

• Domain type names should stay concise and market-neutral unless a market-specific rule is unavoidable.
• Decimal values are represented as strings through market.Decimal; avoid float types for prices and quantities.
• Portfolio and return calculations use exact decimal/rational conversion, not floating point arithmetic.
• Keep package dependencies inward: domain packages should not import API, worker, CLI, Flutter, protobuf generated code, database drivers, or proto-socket.

다른 도메인과의 경계

• contracts: domain-model owns internal Go vocabulary; contracts owns protobuf wire schema and compatibility.
• worker: domain-model defines the shapes; worker executes imports, normalization, backtests, persistence, and socket mapping.
• api: domain-model may be mapped to responses, but API transport details stay outside this module.

금지 사항

• Do not add persistence annotations, socket parser logic, or environment configuration here.
• Do not introduce generated protobuf code into this package.
• Do not use float32 or float64 for money, price, or quantity values.