List every item in the portfolio — shipped systems, competition entries, research projects, published papers, and course reports, not just the flagship case studies — with id, name, tagline, category, year, a one-sentence summary, and its links (live system, GitHub, report, demo video, etc., whichever apply). Links are included right here, so a system or report can be pointed to without a second call. An entry's related_project (when present) is the id of a fuller case study it's a stage or companion piece of — pass that id to get_project_details for the deep-dive version. Call this first for any broad question like "what has this person worked on?" or "does a system exist for X?".

Get the full record for one portfolio item. For a flagship project this includes role, tech stack, the problem it solved, challenges and how they were solved, outcomes, and links; for a lighter item (a course report, a smaller competition entry) it returns whatever is on file — at minimum a description and its links.

Args: name: A project name, id, or known alias/alternate name — e.g. "IM Your Buddy", "knovyra", "lab handover", "NTPU OPE Assistant", or a competition name like "North Taiwan University Alliance AI Agent Competition". Matching is forgiving (case-insensitive, partial, alias-aware), so you don't need the exact id from list_projects — but calling list_projects first helps pick the right one when unsure.

Search the skills/technology taxonomy by keyword and return matches ranked by relevance, each with the projects that demonstrate it. Use this to answer questions like "does this person know RAG / Docker / vector databases / iOS development?".

Args: keyword: A skill, technology, or category to search for, e.g. "RAG", "Docker", "vector database", "iOS", "Next.js".

Get a self-introduction / resume summary, plus name, title, and contact info. Use this to answer "tell me about yourself" or "give me a summary of this person's background" style questions.

Args: length: "short" for 1-2 sentences, "medium" for a paragraph, or "long" for a full narrative summary covering research, shipped projects, publications, and certifications. Defaults to "short".