Every change Wellknown observed on this MCP server, newest first, with what it was before and what it became. Tool-surface changes carry the definition diff. Nothing here is edited after the fact.
Certificate changed, valid to 2027-01-03
Changed the definition of "chess_generate_puzzle"
⟨40 unchanged words⟩ },"variant":{"description":"Chess variantslug, camelCase orplaykebab-caseslug (e.g. almost-chess,capablancabenedict, fischer-random, king-of-the-hill, standard).; a manifest key such as chess960 is also accepted. Returns only puzzles for this variant.","type ⟨3 unchanged words⟩
Changed the definition of "board_gallery_search", "chess_generate_puzzle", "play_create_game" and 7 more
Only numbers and dates differ: this server embeds live figures in the definition, so the text moves without the contract changing.
Search the board gallery (334335 rendered board layouts across3334 game families)
Get a random chess puzzle. Filter by variantor difficulty. Variant puzzles have,nodifficulty
Certificate recorded, valid to 2026-11-05
Authorization not required
First tool surface recorded: 89 tools (server version 0.1.0)
Showing the latest 6 events. The API returns up to 500 and filters by kind: ?kind=tool_surface_changed
{"properties":{"difficulty":{"description":"Puzzle difficulty(variantbypuzzlesrating:maxeasyatunder14001200,somediumhard1200-1799,returnshardnothing1800forandvariants)above","enum":["easy","medium"," ⟨7 unchanged words⟩ fork, pin, skewer, mateIn2, etc).OnlyNotstandardeverypuzzlesvariantcarrypuzzle carries themes.","type":"string"},"variant":{"description":"Chess variant slug, camelCase or kebab-case (e.g.antichess,almost-chess,atomiccapablanca,chess960king-of-the-hill, standard). Returns only puzzles for this ⟨5 unchanged words⟩
⟨10 unchanged words⟩ shogi, xiangqi, mancala, morris, hex, landlords-game, backgammon, standard-52, bavarian-32, flower-48, double-six-dominoes, mahjong, standard-dice, agon, asalto, chaupar, dou-shou-qi, fanorona, halma, nyout, pachisi, royal-ur, senet, stern-halma, surakarta, tafl)","type":"string"},"rngSeed": ⟨29 unchanged words⟩
Export the current board position as a FEN-stylenotationsetupstring.string,Worksinfortheallform10thefamiliesvariant's(chess,owndraughts,frontmattergo,declaresreversi,itsshogi,startingxiangqi,position.mancalaCard,morris,tilehex,andlandlords-game).dice games have no board position to export.
⟨9 unchanged words⟩ shogi, xiangqi, mancala, morris, hex, landlords-game, backgammon, standard-52, bavarian-32, flower-48, double-six-dominoes, mahjong, standard-dice, agon, asalto, chaupar, dou-shou-qi, fanorona, halma, nyout, pachisi, royal-ur, senet, stern-halma, surakarta, tafl)","type":"string"},"variant":{"description":"Variant slug (default:standardthe family's default game)","type":"string"}},"required" ⟨3 unchanged words⟩
⟨13 unchanged words⟩ shogi, xiangqi, mancala, morris, hex, landlords-game, backgammon, standard-52, bavarian-32, flower-48, double-six-dominoes, mahjong, standard-dice, agon, asalto, chaupar, dou-shou-qi, fanorona, halma, nyout, pachisi, royal-ur, senet, stern-halma, surakarta, tafl)
⟨9 unchanged words⟩ shogi, xiangqi, mancala, morris, hex, landlords-game, backgammon, standard-52, bavarian-32, flower-48, double-six-dominoes, mahjong, standard-dice, agon, asalto, chaupar, dou-shou-qi, fanorona, halma, nyout, pachisi, royal-ur, senet, stern-halma, surakarta, tafl)","type":"string"}},"required" ⟨3 unchanged words⟩
Create a gamestatefrom a FEN-stylepositionsetupstring.string,Worksasforreturnedallby10play_export_fen.families.Pass the same variant the position was exported from.
⟨9 unchanged words⟩ shogi, xiangqi, mancala, morris, hex, landlords-game, backgammon, standard-52, bavarian-32, flower-48, double-six-dominoes, mahjong, standard-dice, agon, asalto, chaupar, dou-shou-qi, fanorona, halma, nyout, pachisi, royal-ur, senet, stern-halma, surakarta, tafl)","type":"string"},"fen": ⟨11 unchanged words⟩ ,"variant":{"description":"Optional variant slug (default: the family's default game)","type":"string"}},"required": ⟨4 unchanged words⟩
⟨15 unchanged words⟩ shogi, xiangqi, mancala, morris, hex, landlords-game, backgammon, standard-52, bavarian-32, flower-48, double-six-dominoes, mahjong, standard-dice, agon, asalto, chaupar, dou-shou-qi, fanorona, halma, nyout, pachisi, royal-ur, senet, stern-halma, surakarta, tafl).
Only numbers and dates differ: this server embeds live figures in the definition, so the text moves without the contract changing.
⟨9 unchanged words⟩ best move. Supports 5 difficulty levels across all1030 playable families.