北京大学校内信息门户 (portal.pku.edu.cn / its.pku.edu.cn) CLI 工具。当用户提及 portal、校内信息门户、空闲教室、空教室、教室查询、一教/二教/三教/四教/理教空闲、校历、学年校历、上课时间、网费、网费余额、网费充值、上网账号、查余额、微信充值网费、支付宝充值网费 时使用此 skill。也支持 `portal netfee watch --threshold` 做低余额监测（低于阈值退出码 2，适合 cron 报警）。Also use when dealing with `/publicQuery/classroomQuery/retrClassRoomFree.do`、simso 校历 Vue bundle、its.pku.edu.cn `/cas/webLogin` / `/cas/ITSweb` / `/myConn.jsp` / `/netportal/itsUtil?operation=info`、或 `/paybank/user.PayBankOrderPKU` → cwsf.pku.edu.cn `/PayPreService/pay/cashier/gotToPay` 3 步充值流程。
北京大学课程信息爬取 CLI (dean.pku.edu.cn 教务部 + elective.pku.edu.cn 选课网 + onlineroomse.pku.edu.cn 智云课堂)。当用户提及 claspider、课程爬虫、课程信息爬取、课程目录、全校开课、按院系/教师/关键词查课、合并课程数据 时使用此 skill。适用于要批量导出某学期全部课程（课号/名称/学分/教师/时间地点/简介）做离线查询、语义搜索、选课决策的场景。Also use when dealing with 教务部课表查询 HTML 抓取、选课网分类遍历、智云课堂 JWT token 周课表接口、或三方数据合并。**不是**选课/退课工具——那是 `elective` skill；也不是单人课表——那是 `treehole course` (treehole skill)。
北京大学空间 (bdkj.pku.edu.cn) 学术研讨教室预约 CLI 工具。当用户提及 bdkj、北大空间、学术研讨教室、教室预约、研讨间、借教室 或想要查询/预约/取消 二教/四教/地学 教学楼里的空闲学术研讨教室时使用此 skill。支持保存固定参与人分组（如课题组），重复发起预约时只需 `--group <名字>`。Also use when dealing with bdkj IAAA SSO callback (app_id=bdkj), `/room/classRoom` / `/classRoom/seachStudent` / `/classRoom/handle/submit` 这些端点，或 bdkj groups.json 持久化。
PKU Teaching Platform (北大教学网/Blackboard Learn) CLI tool built in Rust. Use this skill when working on the course crate, debugging course commands, adding features to the teaching platform CLI, or when the user mentions 教学网, Blackboard, course downloads, assignment submission, video downloads, or PKU teaching. Also use when dealing with HTML scraping via the scraper crate, Blackboard SSO callback, or multipart file uploads. **NOT for course schedule / 课表 / weekly timetable questions — for those use the `treehole` skill (`treehole course`), which is the canonical source and includes 辅修/双学位.** This `course` crate only deals with the Blackboard teaching platform (assignments, files, recordings, announcements).
北京大学财务综合信息门户 (cwfw.pku.edu.cn / WF_CWBS) CLI 工具。当用户提及 cwfw、财务门户、财务综合信息门户、个人酬金、工资查询、报销查询 时使用此 skill。Also use when dealing with cwfw IAAA 登录 (app_id=IIPF)、home2.jsp→findpages_postData.action→home3.jsp 多步 bootstrap、WF_CWBS 子系统入口、或 cwfw 的加密表单字段。
PKU Course Selection (选课网) CLI tool built in Rust. Use this skill when working on the elective crate, debugging elective commands, adding features, or when the user mentions 选课, elective, course selection, auto-enroll, CAPTCHA solving, dual-degree, or elective.pku.edu.cn. Also use when dealing with CAPTCHA recognition backends (utool/ttshitu/yunma), automated course enrollment loops, or elective SSO callback. **NOT for general course schedule / 课表 / 这学期上什么课 questions — use the `treehole` skill (`treehole course`) instead, which gives a unified weekly grid with 主修+辅修+双学位. The `elective show` command only sees one program at a time and easily misses courses from the other program for dual-degree students.**
PKU Treehole (北大树洞) anonymous forum CLI tool built in Rust. Use this skill when working on the treehole crate, debugging treehole commands, adding features to the treehole CLI, understanding the treehole API, or when the user mentions 树洞, treehole, anonymous posts, tree leaves (树叶), or PKU forum. Also use when dealing with IAAA login flow for treehole, JWT callback, SMS verification, or treehole REST API endpoints. **Also use whenever the user asks about their course schedule / 课表 / 这学期上什么课 / weekly schedule / academic calendar / 本周日程 — the treehole API exposes these via `treehole course`, `treehole schedule`, `treehole academic-cal`, `treehole activity-cal`, and they are the canonical source. Do NOT use the `course` (Blackboard) or `elective` crate to answer schedule questions — `course` is for teaching-platform content (assignments/files) and `elective` only sees the major program (misses 辅修/双学位).
PKU Campus Card (校园卡) CLI tool built in Rust. Use this skill when working on the campuscard crate, debugging campus card commands, adding features, or when the user mentions 校园卡, campus card, balance, recharge, payment QR, transaction history, monthly spending, or bdcard.pku.edu.cn. Also use when dealing with Synjones platform auth, berserker-auth flow, mobile User-Agent requirements, or HTTP/1.1 constraints.