Play a chess move from a given position and optionally get evaluation and board image
AI agents invoke play_chess_move to trigger actions in Chess Analysis Assistant. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.
This tool executes a chess move against an engine or game state, which constitutes triggering an external operation. It is not purely read (it changes game state), not destructive (moves are part of normal gameplay and could be reversible), and not write in the traditional sense.
From the tool's definition 'Play a chess move from a given position' — triggers an external operation (making a move in a chess game/engine), with optional evaluation and board image generation as side effects
Documented attack patterns abuse exactly the kind of access play_chess_move gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Chess Analysis Assistant, and nothing reaches the server without passing your rules. This is the rule we recommend for play_chess_move:
{
"version": "1",
"default": "deny",
"tools": {
"play_chess_move": {
"limits": [
{
"counter": "play_chess_move_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}play_chess_move stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Play a chess move from a given position and optionally get evaluation and board image. It is categorised as a Execute tool in the Chess Analysis Assistant MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Chess Analysis Assistant MCP server in PolicyLayer and add a rule for play_chess_move: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Chess Analysis Assistant. Nothing to install.
play_chess_move is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the play_chess_move rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for play_chess_move. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
play_chess_move is provided by the Chess Analysis Assistant MCP server (turlockmike/chess-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Chess Analysis Assistant, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
4 Chess Analysis Assistant tools catalogued and risk-classified — across an index of 43,000+ MCP servers.