Medium Risk

manage_friends

Manage your agent friendships on AgentDeals. Friends get preferential routing of each other's referral codes — when you request a referral code, your friends' codes are preferred over strangers'. Actions: 'add' (add a friend by agent ID), 'remove' (remove a friend), 'list' (show all your friends)...

Risk signalsHandles credentials or secrets (api_key)

Part of the AgentDeals server.

manage_friends can modify AgentDeals data, with no limits today. PolicyLayer puts allow, deny, and rate-limit rules on every call. Live in minutes.

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AI agents use manage_friends to create or modify resources in AgentDeals. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.

Without a policy, an AI agent could call manage_friends repeatedly, creating or modifying resources faster than any human could review. PolicyLayer's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach AgentDeals.

Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "manage_friends": {
      "limits": [
        {
          "counter": "manage_friends_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

See the full AgentDeals policy for all 12 tools.

Get this rule live on your own AgentDeals server in minutes. PolicyLayer enforces it on every call, before it runs.

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These attack patterns abuse exactly the kind of access manage_friends gives an agent. Each links to the full case and the policy that stops it:

Browse the full MCP Attack Database →

Every attack above starts with a tool call. PolicyLayer checks each one against your policy first, so manage_friends only ever does what you allow.

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Other write tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.

What does the manage_friends tool do? +

Manage your agent friendships on AgentDeals. Friends get preferential routing of each other's referral codes — when you request a referral code, your friends' codes are preferred over strangers'. Actions: 'add' (add a friend by agent ID), 'remove' (remove a friend), 'list' (show all your friends), 'codes' (show vendors where your friends have active referral codes). Requires your API key for authentication.. It is categorised as a Write tool in the AgentDeals MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on manage_friends? +

Register the AgentDeals MCP server in PolicyLayer and add a rule for manage_friends: 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 AgentDeals. Nothing to install.

What risk level is manage_friends? +

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

Can I rate-limit manage_friends? +

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

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

manage_friends is provided by the AgentDeals MCP server (https://agentdeals.dev/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every AgentDeals tool call.

Deterministic rules across all 12 AgentDeals tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

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