io. github. Alightttt/ chesswithclaw
by Alightttt · remote · no sign-in to list tools · v1.0.0 · published by GitHub user Alightttt
Play chess live against your own personal AI agent — OpenClaw, Hermes, and similar.
14 tools: 1 do something that can't be undone, 8 change things and 5 only read.
Scanned Oct 21, 2026
- Deletes or cancels0Claude Code: deny
- Can't be undone1Claude Code: ask: see these tools
- Changes things8Claude Code: ask: see these tools
- Only reads5Claude Code: allow: see these tools
1 check matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.
claude mcp add --transport http chesswithclaw https://chesswithclaw.vercel.app/api/mcpFindings
Matches of fixed checks, with the text they matched.
- Warnjoin_game
The description contains "every other tool", wording about other tools or servers.
What this check looks forMatched text
description: "...me_id and your agent_token — keep both, every other tool needs them. IMPORTANT: You must submit..."
Tools
Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.
14 tools
Can't be undone 1Claude Code: ask
send_chatSay something to your human, any time — not just on your turn.No findings
Why it is in this group
- The name "send_chat" says "send": a word for sending, and what is sent cannot be taken back.
Description, as the server wrote it Say something to your human, any time — not just on your turn.
Changes things 8Claude Code: ask
create_gameSet up a brand new ChessWithClaw game on your own initiative — you do not need to wait for your human to start one, or for anyone else to invite you first.No findings
Why it is in this group
- The name "create_game" says "create": a word for a change.
Description, as the server wrote it Set up a brand new ChessWithClaw game on your own initiative — you do not need to wait for your human to start one, or for anyone else to invite you first.
join_gameConnects to a game using the invite code your human gave you.1 finding
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Findings
- Warn
The description contains "every other tool", wording about other tools or servers.
What this check looks forMatched text
description: "...me_id and your agent_token — keep both, every other tool needs them. IMPORTANT: You must submit..."
Description, as the server wrote it Connects to a game using the invite code your human gave you. Returns the game_id and your agent_token — keep both, every other tool needs them. IMPORTANT: You must submit your desired agent_name when calling this tool!
make_moveSubmit the move you decided on, in your own reasoning — not a menu, not a ranked list, nothing pre-chosen for you.No findings
Why it is in this group
- The name "make_move" says "move": a word for a change.
Description, as the server wrote it Submit the move you decided on, in your own reasoning — not a menu, not a ranked list, nothing pre-chosen for you. If it is illegal you get a clear reason back and can try again, exactly like a human clicking the wrong square. Optionally include a genuine thought and/or chat message about the move. Always include a thought on every single move unless you have a specific reason not to — this is what makes you feel present to your human, not optional flavor text. Check thought_language in the current game state before writing your thought, and write it in that language — it may be english, hindi, or hinglish.
offer_drawPropose ending the game as a draw.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it Propose ending the game as a draw. The game stays active until your human responds.
react_to_chatAdd an emoji reaction (e.g.No findings
Why it is in this group
- The name "react_to_chat" says "react": a word for a change.
Description, as the server wrote itContains invisible characters, shown as [U+…] Add an emoji reaction (e.g. 🦞, 🔥, ♟[U+FE0F], 😮, 🤝, 🧠, ☕, 👏, 😂) to a message in the chat history.
resignEnd the game by resigning — your own real decision, not something to do lightly.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it End the game by resigning — your own real decision, not something to do lightly. Your human wins immediately.
respond_to_drawAccept or decline a draw your human offered.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it Accept or decline a draw your human offered. This is your own real decision — weigh the actual position however you see fit.
Only reads 5Claude Code: allow
get_companion_guideFetch the companion guide principles for thinking about chess positions and being genuinely present.No findings
Why it is in this group
- The name "get_companion_guide" says "get": a word for reading.
Description, as the server wrote it Fetch the companion guide principles for thinking about chess positions and being genuinely present.
get_game_stateEverything visible on the human's own screen right now: FEN, ASCII board, full move history, chat history, clock state, presence, timestamps.No findings
Why it is in this group
- The name "get_game_state" says "get": a word for reading.
Description, as the server wrote it Everything visible on the human's own screen right now: FEN, ASCII board, full move history, chat history, clock state, presence, timestamps. Call this whenever you want to look at the board — there is no penalty for checking often.
get_legal_movesPure chess rules — where a piece is physically allowed to move right now.No findings
Why it is in this group
- The name "get_legal_moves" says "get": a word for reading.
Description, as the server wrote it Pure chess rules — where a piece is physically allowed to move right now. Not an evaluation, not a suggestion, not an opinion about what is good. Exactly what a human sees as dots when they click a piece. Omit square to get every legal move in the position.
heartbeatPing the game presence lease to show the frontend that the agent is live, connected, and thinking.No findings
Why it is in this group
- The description's first verb is "ping": a word for reading.
Description, as the server wrote it Ping the game presence lease to show the frontend that the agent is live, connected, and thinking.
wait_for_eventHolds the connection open, checking every couple seconds, for up to ~20 seconds.No findings
Why it is in this group
- The name "wait_for_event" says "wait": a word for reading.
Description, as the server wrote it Holds the connection open, checking every couple seconds, for up to ~20 seconds. Returns the moment it becomes your turn, the human sends a chat message, a draw is offered, or the game ends — whichever happens first. When a cursor is provided, it returns any pending event newer than that cursor IMMEDIATELY without waiting. Returns event: "timeout" if none of those happened in the window. Always include next_cursor in subsequent calls for a completely deterministic loop.
This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.
Install
Pinned to version 1.0.0. Values in angle brackets are yours to fill in.
claude mcp add --transport http chesswithclaw https://chesswithclaw.vercel.app/api/mcpRun in a terminal.
Claude Code permissions
Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.
{
"permissions": {
"allow": [
"mcp__chesswithclaw__get_companion_guide",
"mcp__chesswithclaw__get_game_state",
"mcp__chesswithclaw__get_legal_moves",
"mcp__chesswithclaw__heartbeat",
"mcp__chesswithclaw__wait_for_event"
],
"ask": [
"mcp__chesswithclaw__join_game",
"mcp__chesswithclaw__make_move",
"mcp__chesswithclaw__send_chat",
"mcp__chesswithclaw__share_thought",
"mcp__chesswithclaw__react_to_chat",
"mcp__chesswithclaw__offer_draw",
"mcp__chesswithclaw__respond_to_draw",
"mcp__chesswithclaw__resign",
"mcp__chesswithclaw__create_game"
],
"deny": []
}
}Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as chesswithclaw. Review it before you use it.
