---
name: No constant leaf in RcCircuit
description: User does not want a Const leaf variant in RcCircuit — coefficients belong in Poly, not in the circuit DAG
type: feedback
originSessionId: 4c73b3be-dd4d-4cc5-ae2c-da7af42d444b
---
Do not suggest adding a `Const` (or constant) leaf variant to `RcCircuit` in `src/circuit/dag.rs`.

**Why:** Coefficients are handled at the `Poly` layer. The circuit DAG only encodes structural/symbolic relationships between variables.

**How to apply:** When reviewing or extending `RcCircuit`, treat the absence of a constant leaf as intentional design, not a gap.