label-self

Self-label your own content (kind 1985). Useful for content warnings, categories,

SERVERNostr Bray SOURCEnostr-bray

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/dev-forgesworn-bray/label-self.md

WHAT IT DOES

What label-self does on Nostr Bray

AI agents use label-self to create or update resources in Nostr Bray, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Nostr Bray environment.

RISK

Why label-self is rated Medium

This tool writes a new Nostr label event to categorize or add content warnings to the user's own content. It modifies data reversibly (labels can be removed/updated), has limited blast radius as it only affects the calling user's own content, and has no destructive, financial, or execution characteristics.

From the tool's definition 'Self-label your own content' — creates a label event (kind 1985) on the user's own content

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs label-self 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 label-self, this is the rule to start with:

label-self Rate-limited

label-self 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": {
    "label-self": {
      "limits": [
        {
          "counter": "label-self_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about label-self

What does the label-self tool do? +

Self-label your own content (kind 1985). Useful for content warnings, categories,. It is categorised as a Write tool in the Nostr Bray MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on label-self? +

Register the Nostr Bray MCP server in PolicyLayer and add a rule for label-self: 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 label-self? +

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

Can I rate-limit label-self? +

Yes. Add a rate_limit block to the label-self 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 label-self completely? +

Set action: deny in the PolicyLayer policy for label-self. 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 label-self? +

label-self 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.

KEEP EXPLORING

More on Nostr Bray, and thousands of servers like it.

This server

All 240 Nostr Bray tools →

Across the catalogue

create-label on Meme MCP Server → The MCP Attack Database →

Guides

Govern customer-ops agents →Argument validation →Scoped token →