code_trace

code_trace follows the call graph from a starting symbol, either downward (what it calls) or upward (what calls it). Use it to understand how a function fits into the larger system.

Usage

code_trace(name="OrderService.checkout", direction="down")

Parameters

Parameter	Type	Default	Description
name	string	required	Starting symbol
direction	"up" | "down"	"down"	Follow callees or callers
depth	number	5	Max hops to follow

Output

OrderService.checkout (src/services/order.ts:42)
  └─ PaymentService.charge (src/services/payment.ts:18)
       └─ stripe.charges.create (external)
  └─ InventoryService.reserve (src/services/inventory.ts:91)
       └─ db.query (src/db/client.ts:7)
            └─ orders_table (postgres)
  └─ NotificationService.send (src/services/notify.ts:33)

Route tracing

For HTTP routes, use code_route_trace which combines route lookup with full call tracing:

code_route_trace(route="/api/orders", method="POST")
→ Router → OrderController.create → OrderService.checkout → ...