List the UCI terms (quarters) that have schedule-of-classes data, plus the current week of instruction. Optionally pass a term to get that term's academic calendar (instruction begins/ends, finals week, holidays). Call this first when the user says 'next quarter' or doesn't name a term.

List UCI department codes used by the schedule of classes (e.g. COMPSCI, I&C SCI, BIO SCI). Use when you are unsure of the exact code for a subject. Optionally filter by a substring.

Search the UCI course catalogue (all courses that exist, not term-specific offerings). Use a free-text query for fuzzy search ('machine learning', 'CS 161'), or the structured filters to browse (e.g. all GE-2 lower-division courses worth 4 units). To see which sections actually run in a given quarter and whether seats are open, use find_sections instead.

Full catalogue detail for one course: description, units, prerequisites (text and structure), courses that unlock from it, enrollment restrictions, GE credit, repeatability, and which terms it has been offered. Use this before advising someone to take a course.

The main course-finding tool. Queries UCI's live schedule of classes for one term and returns matching sections with meeting times, instructor, location, seats taken, waitlist and final exam. Filter by department, course number, GE category, instructor, days of week, time window, and seat availability. At least one narrowing filter besides the term is required.

Historical grade distributions and average GPA for a course, broken down by instructor (default) or by term. Use this to answer 'which professor should I take?' or 'how hard is this class?'. Data is from UCI's public records; recent quarters may be missing.

Find a UCI instructor and see their title, department, the courses they have taught, and their average GPA given across all courses. Use to evaluate a professor before enrolling.

Historical enrollment for a course: final enrollment vs capacity, waitlist size, and (for recent terms) the day-by-day fill curve. Use this to judge registration risk — 'will I get in?', 'do I need to enroll at 7am?', 'does the waitlist clear?'.

Evaluate a course's prerequisite tree against the courses a student has already completed, showing exactly which requirements are met and which are missing. Also reports enrollment restrictions (major-only, etc.), which the API cannot verify automatically.

Given a term and a list of 5-digit section codes, build the weekly timetable, total the units, and report any meeting-time or final-exam conflicts. Use this to validate a proposed schedule before registration.

The 'find me a class' tool. Combines the live schedule with historical grade data to rank candidate courses for a term. Filter by GE category, department, level, days of week, time window and seat availability; results are ranked by historical average GPA (or by open seats). Ideal for 'find me an easy GE-2 with open seats that doesn't meet before 10am'.

List UCI degree programs. Use to find the program id needed by get_program_requirements.

The full requirement tree for a major, minor or specialization, or the university's general undergraduate requirements (GE categories, unit minimums). Use for degree planning — 'what do I still need?'.

Links to syllabi from previous offerings of a course, by term and instructor. Use to show a student what the workload, grading breakdown and topics actually look like before they enroll. Links point at UCI Canvas and may require a UCInetID login.

Look up what AP exam scores earn at UCI: units, elective units, GE categories and specific courses cleared. Use for incoming students planning a first quarter, or to work out whether an exam score already satisfies a prerequisite. The catalogueName in the output is the exact string check_prerequisites expects in apScores.

The catalogue's recommended quarter-by-quarter course sequence for a major. Use to answer 'what should I take first year?' or to sanity-check whether a student is on track. Call with no argument to list the majors that have a published plan.