From 703fd2f8bdb113d04bf198cdbc629d331209276c Mon Sep 17 00:00:00 2001
From: seveibar <seveibar@gmail.com>
Date: Tue, 28 Jul 2026 12:26:26 -0700
Subject: [PATCH] docs: include fanout boundary padding props

---
 README.md | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/README.md b/README.md
index 351860f1..b3cdb0bb 100644
--- a/README.md
+++ b/README.md
@@ -347,6 +347,11 @@ export interface AutoroutingPhaseProps extends RoutingTolerances {
    * direction unconstrained.
    */
   busFanoutDirections?: Record<BusName, BusFanoutDirection>;
+  /**
+   * Padding between the union of the fanout source pads and the shared
+   * boundary where fanout traces terminate.
+   */
+  fanoutBoundaryPadding?: FanoutBoundaryPadding;
 }
 ```
 
@@ -422,6 +427,12 @@ export interface BreakoutProps extends Omit<
   paddingRight?: Distance;
   paddingTop?: Distance;
   paddingBottom?: Distance;
+  /**
+   * Padding between the union of the fanout source pads and the shared
+   * boundary where fanout traces terminate. This is independent of the
+   * breakout group's layout padding.
+   */
+  fanoutBoundaryPadding?: FanoutBoundaryPadding;
 }
 ```