analyze-x01-checkout-routing

name	analyze-x01-checkout-routing
description	Use for X01 checkout route logic, finish suggestions, checkout targets, score pulse, TV Board Zoom checkout interactions, bull semantics, and route/target regression analysis.

Goal

Keep X01 checkout routing, finish visibility, and target semantics correct without mixing route rules with rendering concerns.

Core rules

• preserve X01 base scores 121 and 170 as valid
• preserve Bull semantics
• treat route visibility and board zoom as separate concerns unless the task explicitly combines them
• avoid changing checkout rules without tests
• prefer shared helpers for route and surface semantics instead of duplicated feature-local parsing
• do not hand-edit dist/**

Context budget

• search first, then open likely route, target, board-zoom, and nearest test files
• avoid broad tours through src/**
• avoid docs/** unless wording is in scope
• stop expanding context when route and target ownership is clear

Regression Cases

Consult references/checkout-regression-cases.md before changing checkout rules or target selection.

Require focused regression coverage for cases such as:

• 10 -> D5
• 22 -> D11
• 50 where route S10 -> D20 is visible and finish-only zoom must not incorrectly prefer BULL

Output requirements

A valid result must state whether route rules, target selection, board zoom, or score pulse behavior changed, and which focused regression cases cover it.