Enforce Layered Reuse

When changing or adding code, keep logic and dependencies clean:

• Centralize invariants in the owning function: if you need to clamp/validate values, apply it inside the core method that produces/returns them (the “source of truth”) rather than at every call site.
• Respect package layering: lower-level packages must not import higher-level/business packages (no reverse dependencies). Define contracts in the appropriate layer so dependencies flow downward only.
• Reuse existing utilities: avoid adding tiny wrappers/helpers when an approved library/helper already exists.

Example (centralize clamping):

// prefer: clamp inside Calculate (source of truth)
first, request, _ := ts.perf.Calculate() // already returns clamped request

Example (no reverse dependency):

• If llm is a bottom package, it should not import objects (business). Move shared types to a neutral/lower package or pass data via interfaces defined at the lower layer.

Example (reuse utility):

v := lo.ToPtr(123) // instead of custom xptr.IntPtr(123)