claim_victory · Lichess Integration MCP: Risk & Policy

WHAT IT DOES

What claim_victory does on Lichess Integration

AI agents use claim_victory to create or update resources in Lichess Integration — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Lichess Integration environment.

PARAMETERS

Parameter	Type	Required	Description
`gameId`	string	—	The game ID

Parameters from the server's own tool schema.

WHY IT NEEDS A POLICY

Why claim_victory needs a policy

This tool modifies the state of a game by claiming a victory result. It is a write operation that changes game outcome data on the Lichess platform. While it affects the game record and potentially ratings, it is a reversible/administrative action within the platform's rules (not destructive or financial). Misuse could affect game outcomes and ratings, giving it medium severity.

From the tool's definition Claim victory if opponent abandoned the game

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

claim_victory Rate-limited

claim_victory stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "claim_victory": {
      "limits": [
        {
          "counter": "claim_victory_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Lichess Integration, so you can run agents against it safely.

FAQ

Questions about claim_victory

What does the claim_victory tool do? +

Claim victory if opponent abandoned the game. It is categorised as a Write tool in the Lichess Integration MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does claim_victory accept? +

claim_victory accepts 1 parameter: gameId. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on claim_victory? +

Register the Lichess Integration MCP server in PolicyLayer and add a rule for claim_victory: 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 Lichess Integration. Nothing to install.

What risk level is claim_victory? +

claim_victory is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit claim_victory? +

Yes. Add a rate_limit block to the claim_victory 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.

How do I block claim_victory completely? +

Set action: deny in the PolicyLayer policy for claim_victory. 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.

What MCP server provides claim_victory? +

claim_victory is provided by the Lichess Integration MCP server (karayaman/lichess-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.