用于创建、维护、调试或审查真实浏览器端到端测试，包括 Playwright/Cypress、Page Object、CI 产物、trace、不稳定用例、跨页面视觉回归以及登录、支付、权限或 CRUD 等关键用户旅程。
若是测试层规划或靠近 UI 组件的测试，先选择对应测试工作流；中文触发词包括 E2E、端到端测试、Playwright、Cypress。
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Review the instructions the agent will receive before you install.
用真实浏览器验证关键用户旅程，发现单元测试无法覆盖的集成风险。
sleep / 固定 setTimeout 作为主要同步手段。关键用户旅程有稳定 E2E 覆盖，失败产物可定位问题，CI 中报告和 trace 可下载；flaky 用例有复现命令、隔离策略和后续 issue。
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Use when reviewing or improving frontend accessibility, semantic structure, keyboard support, focus management, ARIA labels, screen reader behavior, WCAG 2.2 issues, touch accessibility, or assistive-technology regressions; Chinese triggers include accessibility, accessibility, a11y, WCAG, screen reader.
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用于审查或改进前端无障碍、语义结构、键盘支持、焦点管理、ARIA 标签、屏幕阅读器行为、WCAG 2.2 问题、触控无障碍或辅助技术回归；中文触发词包括 无障碍、accessibility、a11y、WCAG、屏幕阅读器。
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Use when absorbing ideas, capabilities, workflows, architecture, quality systems, ecosystem extensions, or engineering practices from any reference system into the current project through original, project-native redesign rather than copying.
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用于从参考系统中吸收想法、能力、工作流、架构、质量体系、生态扩展或工程实践，并通过原创的项目内重设计转化为当前项目能力，而不是复制原实现。
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Use when designing, implementing, or reviewing frontend-to-backend API integration, typed API clients, REST/tRPC/OpenAPI client choices, auth refresh, API error mapping, upload flows, SSE/WebSocket/polling choices, CORS-facing frontend behavior, or cross-boundary loading/error states. Do not use for backend-only service architecture or TanStack Query cache policy alone; Chinese triggers include API integration, front-end and back-end joint debugging, typed API client, Interface error handling, SSE, WebSocket.
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用于设计、实现或审查前后端 API 集成、类型化 API client、REST/tRPC/OpenAPI 客户端选型、认证刷新、API 错误映射、上传流程、SSE/WebSocket/轮询选择、CORS 相关前端行为或跨边界 loading/error 状态。不要用于纯后端服务架构或仅 TanStack Query 缓存策略；中文触发词包括 API 集成、前后端联调、typed API client、接口错误处理、SSE、WebSocket。
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