Sudoku MCP Server (sandlong/sudoku-mcp) is an MCP server listed on the M8ven Trust Index. M8ven has not graded it: we have no way to read this server ourselves. No publisher has claimed this listing.
A Cloudflare Worker-based MCP server for playing Sudoku, exposing five tools (start_game, get_game, play_move, check_game, reset_game) that let users start uniquely solvable puzzles, make moves, validate entries against a hidden solution, and reset games via a SQLite-backed Durable Object per game.
Emerging. No concerning findings. Grades remain capped until the project builds reputation through adoption. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
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sandlong
Source: Glama
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Install from
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Tool annotations
No tools have read-only/destructive annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
5/5 tools missing one or more hints — start_game (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_game (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); play_move (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +2 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
License file
No license file
Add a LICENSE file (MIT, Apache-2.0, etc.).
Shell command execution
3 child_process calls — runs shell commands
Prefer library functions over shell-outs. If you must shell out, ensure all inputs are properly escaped.
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