hydra_favorite_game · Hydra Bridge MCP: Risk & Policy

WHAT IT DOES

What hydra_favorite_game does on Hydra Bridge

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

WHY IT NEEDS A POLICY

Why hydra_favorite_game needs a policy

This tool modifies a user preference (favorite status) for a game. It creates or updates metadata reversibly — favoriting/unfavoriting a game is a non-destructive, reversible write operation with minimal blast radius.

From the tool's definition Add or remove a game from favorites

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

hydra_favorite_game Rate-limited

hydra_favorite_game 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": {
    "hydra_favorite_game": {
      "limits": [
        {
          "counter": "hydra_favorite_game_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 Hydra Bridge, so you can run agents against it safely.

FAQ

Questions about hydra_favorite_game

What does the hydra_favorite_game tool do? +

Add or remove a game from favorites. It is categorised as a Write tool in the Hydra Bridge MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on hydra_favorite_game? +

Register the Hydra Bridge MCP server in PolicyLayer and add a rule for hydra_favorite_game: 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 Hydra Bridge. Nothing to install.

What risk level is hydra_favorite_game? +

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

Can I rate-limit hydra_favorite_game? +

Yes. Add a rate_limit block to the hydra_favorite_game 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 hydra_favorite_game completely? +

Set action: deny in the PolicyLayer policy for hydra_favorite_game. 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 hydra_favorite_game? +

hydra_favorite_game is provided by the Hydra Bridge MCP server (kleirrampage45/hydra-bridge). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.