{"server":"ua.org.chertov/chertov","count":5,"tools":[{"name":"get_problem","title":"Get Problem","description":"One solved problem, in full. Address it either with paragraph + number, or with label — the spoken form \"1.12\" (a dot, a dash or a space also work: \"1-12\", \"1 12\"). Returns JSON: when found, {found: true, problem: {label, paragraph, number, chapter, condition, solution_image_url, page_url, chapter_name, paragraph_name, chapter_url, paragraph_url, solution_format}}; otherwise {found: false, reason: \"not_solved\"|\"not_found\", label, paragraph, number, message}. A missing or unsolved problem is a normal result, not an error — do not retry it.","input_schema":{"type":"object","properties":{"label":{"type":"string","maxLength":16,"description":"The problem label as it is spoken or written: \"1.12\", \"1-12\" or \"1 12\". Use this OR paragraph + number."},"number":{"type":"integer","minimum":1,"description":"Problem number within the paragraph. Give together with `paragraph`, or use `label` instead."},"paragraph":{"type":"integer","minimum":1,"description":"Paragraph (§) number. Give together with `number`, or use `label` instead."}}},"output_schema":null,"annotations":{"readOnlyHint":true,"openWorldHint":false,"idempotentHint":true},"source":"probe","observed_at":"2026-10-19T11:40:19.852Z"},{"name":"list_chapters","title":"List Chapters","description":"Map of the whole corpus: every chapter of the Chertov & Vorobyov physics problem book, with its paragraph (§) numbers and how many solved problems it holds. Takes no arguments. Returns JSON: {chapters: [{chapter, name, paragraph_count, paragraphs, paragraph_range, solved_problem_count, page_url}], totals: {chapters, paragraphs, solved_problems}}. Call this first to learn the shape of the corpus.","input_schema":{"type":"object","properties":{}},"output_schema":null,"annotations":{"readOnlyHint":true,"openWorldHint":false,"idempotentHint":true},"source":"probe","observed_at":"2026-10-19T11:40:19.852Z"},{"name":"list_paragraphs","title":"List Paragraphs","description":"Paragraphs (§) of the problem book, optionally restricted to one chapter. Arguments: chapter (optional integer). Returns JSON: {chapter, paragraphs: [{paragraph, name, chapter, chapter_name, solved_problem_count, problem_number_range, page_url}], totals: {paragraphs, solved_problems}}. Paragraph numbers are unique across the whole book, so a paragraph number alone addresses a section.","input_schema":{"type":"object","properties":{"chapter":{"type":"integer","minimum":1,"description":"Chapter number to restrict to. Omit for every paragraph in the book."}}},"output_schema":null,"annotations":{"readOnlyHint":true,"openWorldHint":false,"idempotentHint":true},"source":"probe","observed_at":"2026-10-19T11:40:19.852Z"},{"name":"list_problems","title":"List Problems","description":"Solved problems of one paragraph (§), paginated and in book order. Arguments: paragraph (required integer), page (optional, default 1), per_page (optional, default 25, max 100). Returns JSON: {paragraph, paragraph_name, chapter, chapter_name, problems: [{label, paragraph, number, chapter, condition, solution_image_url, page_url}], pagination: {page, per_page, total, total_pages}}. `condition` is the problem statement as plain Russian text; the worked solution exists only as the GIF at `solution_image_url`. Problems without a solution are not listed and are not counted.","input_schema":{"type":"object","required":["paragraph"],"properties":{"page":{"type":"integer","default":1,"minimum":1,"description":"1-based page number. Defaults to 1."},"per_page":{"type":"integer","default":25,"maximum":100,"minimum":1,"description":"Results per page, 1 to 100. Defaults to 25."},"paragraph":{"type":"integer","minimum":1,"description":"Paragraph (§) number. Unique across the whole book; see list_paragraphs."}}},"output_schema":null,"annotations":{"readOnlyHint":true,"openWorldHint":false,"idempotentHint":true},"source":"probe","observed_at":"2026-10-19T11:40:19.852Z"},{"name":"search_problems","title":"Search Problems","description":"Full-text search over the Russian problem statements. Searches PROBLEMS ONLY — never articles or news. Arguments: query (required string, at least 5 characters once whitespace is removed), page (optional, default 1), per_page (optional, default 25, max 100). Returns JSON: {query, problems: [{label, paragraph, number, chapter, condition, solution_image_url, page_url}], pagination: {page, per_page, total, total_pages}}. Query in Russian — the statements are Russian. A shorter query is rejected with a validation error rather than returning nothing, and LIKE wildcards in the query are matched literally.","input_schema":{"type":"object","required":["query"],"properties":{"page":{"type":"integer","default":1,"minimum":1,"description":"1-based page number. Defaults to 1."},"query":{"type":"string","maxLength":255,"description":"Text to look for inside the problem statements, in Russian. At least 5 characters once all whitespace is removed — spaces do not count towards that minimum."},"per_page":{"type":"integer","default":25,"maximum":100,"minimum":1,"description":"Results per page, 1 to 100. Defaults to 25."}}},"output_schema":null,"annotations":{"readOnlyHint":true,"openWorldHint":false,"idempotentHint":true},"source":"probe","observed_at":"2026-10-19T11:40:19.852Z"}],"next_cursor":null,"next_actions":[{"action":"get_connection","description":"Connection block to call these tools","href":"/v1/servers/ua.org.chertov%2Fchertov/connection?target=mcpServers","arguments":{"name":"ua.org.chertov/chertov","target":"mcpServers"}},{"action":"get_server","description":"Full descriptor with trust and connectability","href":"/v1/servers/ua.org.chertov%2Fchertov","arguments":{"name":"ua.org.chertov/chertov"}}]}