Skills
96,770 packaged capabilities and playbooks for agents. Install any of them with one command.
Documents
Turns a PRD into User Stories that a developer - human or agent - can build without guesswork: one User Story per in-scope feature, in As a/I want/So that format with at least two Gherkin scenarios, PRD conflicts documented rather than silently resolved, and open points stated as exact questions for the business. Use when the BA role receives a PRD, or when asked to write, draft or split user stories from a PRD, in any domain
Use when the user asks to confirm feature trade-offs in a PRD or development plan item by item; not for quality reviews, writing documents from scratch, or implementation. Briefly explain each feature, its value, and the planned approach; revise the document after confirmation, rejection, or changes
Contextualizes the business of an existing system (brownfield) for AI-first work: builds the capability map (what the system does today), surfaces business rules hidden in code, and creates the business ↔ code glossary with the ARCH, all with evidence, then pauses for human approval. Use when the BA role starts on an existing system without a PRD or backlog, or when asked to document what a legacy system does, extract its business rules, or build a domain glossary
For Japanese writing and editing, decide whether to organize from the structure, locally refine AI-like wording while preserving the original meaning and strength of claims, concisely summarize business or technical documents, or turn content into an outline, telegraphic prose, or technical slides, then choose the appropriate skill. Use as an entry point for choosing a writing approach when asked to “write something,” “make it easier to read,” or “fix the AI-like tone.” Do not use for ordinary conversation or code-only editing requests.
Acquire official research-paper PDF/BibTeX pairs; discover venue/topic corpora or an author's publications; audit, update, import, and organize local paper libraries; configure named IEEE institution access; or investigate literature evidence and gaps.
Personal data access and knowledge base use. Use when a task needs the user's own historical documents, customer materials, past plans, meeting notes, or study materials—for example, “prepare for a meeting using previous materials,” “write a version based on the old plan,” or “why did we decide this before?” The user does not need to say “knowledge base” or name Bailian. Also use when the user wants to reuse a collection of materials, or asks to connect, update, view, pause, resume, or clear the repository. Also handles explicit bl knowledge / kscli resource operations. Do not trigger for general Q&A, summarizing only the current attachment, or writing that needs no historical materials; personal preferences and chat memory belong to bailian-memory, while DingTalk document management, model selection, and fine-tuning are outside this Skill.
Fetch a WeChat Official Account article (`mp.weixin.qq.com` link) as clean Markdown for archiving or AI summarization. Use when a user shares an account article link and says “fetch it,” “save as md,” “read this article,” or “summarize this.” Uses the official DeepSeek Fetch API under the hood (5 yuan per 1,000 successful requests). Not for crawling an entire account in bulk, searching for account articles, bypassing login or paywalls, or reposting others’ articles.
New to MCP?
From what the protocol is to installing your first server, these answers cover most first questions.
An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.