Signals Service

The Signals service consumes enriched market data from the Feed, runs multiple trading strategies in parallel, and publishes per-strategy signals directly to Redis. Each AccountExecutor subscribes to the strategy stream it is configured for.

Strategy Purity

Strategies are pure signal generators. They receive a MarketSnapshot and return a StrategySignal. They do not compute entry pricing, position sizing, or manage positions — that is handled by the Executor service.

Intent Actions

Each signal carries one of five intent values; four are actionable (trigger execution):

• BUY — Enter a new long position
• EXIT — Close existing position
• SCALE_IN — Increase position size
• SCALE_OUT — Decrease position size
• WAIT — No action recommended (fire-and-forget)

Strategies

Strategies are built in the UI. Define entry rules, exit rules, and parameters, then save and reuse them. Each account can run multiple strategies in parallel — create as many as you need and attach them per account.

Data Flow

Input: feed:{token}:market:{frame} — Full market snapshots from the Feed (per slot, e.g. 15min).

Output: signal:{strategy}:{account}:{token} — Actionable signals go to Redis streams for Executor consumption; WAIT signals use pub/sub only.

Signal Traceability

Actionable signals carry a unique signal_id (SID) for full traceability from entry to exit. EXIT signals inherit the SID from the open position so the Executor knows exactly which position to close.