软件正确性调查 skill。用于用户说“XX 不太对”“这个功能有 bug”“结果和预期不一致”“帮我查原因”，也用于用户要求 review 某个模块、文件、diff 或 PR 的正确性。遇到已知异常或模块 correctness review 时必须优先使用本 skill。 本 skill 使用贝叶斯根因调查：先列候选原因 H，再按日志、代码路径、测试、diff、spec 等证据 E 更新置信度，最后判断根因属于原始 spec 不一致、实现过程偏移、spec 缺口、环境/数据问题或证据不足。 x-cr 独立于 x-verify / x-qa-gate 自动门禁，产出 reports/cr/cr-report-*.md，x-fix 可按该 CR 报告继续修复。
How to install x-cr?
ktkid/x-dev-pipeline/x-cr
$npx -y skills add ktkid/x-dev-pipeline --skill x-crInstalls into the current project.
›Prefer a prompt? Paste this to your agent
Run `npx skills use "https://github.com/ktkid/x-dev-pipeline" --skill "ktkid/x-dev-pipeline/x-cr"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/ktkid/x-dev-pipeline" that are relevant to the current task. Run `npx skills add "https://github.com/ktkid/x-dev-pipeline"` and select the relevant skills, then follow their instructions.
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