canary-group-members

List members and admins of a CANARY group.

SERVERNostr Bray SOURCEnostr-bray

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/dev-forgesworn-bray/canary-group-members.md

WHAT IT DOES

What canary-group-members does on Nostr Bray

AI agents call canary-group-members to retrieve information from Nostr Bray without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why canary-group-members is rated Low

This is a read-only operation that retrieves existing group membership information. It has no capability to create, modify, delete, or execute any action; it only lists members. The blast radius is minimal—exposure of group roster information may have privacy implications but does not enable destructive, financial, or code execution risks.

From the tool's definition Tool name 'canary-group-members' with description 'List members and admins of a CANARY group' indicates a query operation that retrieves group membership data without modifying state.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs canary-group-members safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Nostr Bray, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For canary-group-members, this is the rule to start with:

canary-group-members Allowed

canary-group-members is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "canary-group-members": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Nostr Bray, apply this rule, and every canary-group-members call is checked against it from then on.

FAQ

Questions about canary-group-members

What does the canary-group-members tool do? +

List members and admins of a CANARY group. It is categorised as a Read tool in the Nostr Bray MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on canary-group-members? +

Register the Nostr Bray MCP server in PolicyLayer and add a rule for canary-group-members: 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 Nostr Bray. Nothing to install.

What risk level is canary-group-members? +

canary-group-members is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit canary-group-members? +

Yes. Add a rate_limit block to the canary-group-members 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 canary-group-members completely? +

Set action: deny in the PolicyLayer policy for canary-group-members. 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 canary-group-members? +

canary-group-members is provided by the Nostr Bray MCP server (nostr-bray). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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