chess-workspace

Use when reasoning about a chess position to advise a player, after the position has been set up via chess_ MCP tools. Covers the discipline that prevents legality hallucinations (off-diagonal moves, pin blindness, miscounted material).

Use when a chess analysis session hits a gap in chess-support-mcp (missing legal-move list, no pins, no undo, etc.) and you're tempted to plug it. Catalogues known gaps, their priority, and the constraint that keeps this workspace engine-free.

Use when setting up the MCP game state from a SAN PGN, before analyzing a position. Covers the SAN→UCI conversion discipline and the "one illegal move cascades" gotcha that can waste a session's worth of tokens.