Report the authenticated codebreaker.xyz user.

Returns authenticated=true with username/role when the stored session cookie works, otherwise authenticated=false with instructions.

List problems with status (solved/partial/attempted/not_attempted), tags, problem type, and AC counts.

Your-score status requires login (scores show N/A when logged out). command: 'all' (default, sorted by #AC), 'newest', 'unsolved', or 'recommended' (both of the last two require login). Filter further with status=, tag= (include), and exclude_tags= (exclude; Joke problems are dropped by default); page with offset/limit.

Read a problem statement plus constraints.

Statements come in two shapes: HTML problems return statement_markdown (+ best-effort samples); PDF-only problems return statement_text (pypdf extraction) and statement_pdf_path — a locally cached PDF file you can hand to a mineru MCP for deeper parsing — plus statement_pdf_url. No images are extracted. Also returns subtasks, editorials (when visible), and has_attachment (use codebreaker_get_attachment for the zip).

List submissions, optionally filtered by problem and/or user.

Pass username= (from codebreaker_me) to see your own submissions; omit both filters for all submissions. 25 per page; has_next/has_previous tell you when more pages exist.

Get full submission results: score, per-subtask and per-testcase verdicts (AC/WA/PS/TLE/MLE/RTE/UG/:(), times and memory, compile error if any, and the submitted code (only for your own submissions).

pending=true means grading is not finished — use codebreaker_wait_submission instead of polling manually.

View a user's profile: name, school, role, country, and their solved problems. Useful to check your own solved set or a peer's progress.

Download a problem's attachment (a zip of input files) to a local cache and return its path. Some problems ship data files here instead of in the statement — check codebreaker_get_problem's has_attachment first.

Submit a solution for evaluation.

Submissions are automatically spaced ~2s apart. Returns the submission id; call codebreaker_wait_submission on it to get verdicts. For Communication problems pass code_b (two programs are graded together).

Poll a submission until grading finishes, then return the full result (same shape as codebreaker_get_submission). Fails after timeout seconds if the grader is still running.