find_snippets

THE RISK

Low Risk

Why find_snippets needs a policy

This tool retrieves or queries data from the Nostr network's code snippet collection without creating, modifying, or deleting anything. The use of 'find' with filtering parameters (author, language, tags) is characteristic of a Read operation. Severity is low because misuse would only expose information already stored on a public blockchain network, with no destructive or financial consequences.

From the tool's definition Tool name 'find_snippets' and description 'Find code snippets with optional filtering by author, language, and tags' indicate a query/search operation with no modification capability.

Documented attack patterns abuse exactly the kind of access find_snippets gives an agent:

POLICY

How to control find_snippets

PolicyLayer is an MCP gateway — it sits between your AI agents and MCP-NOSTR, and nothing reaches the server without passing your rules. This is the rule we recommend for find_snippets:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "find_snippets": {}
  }
}

find_snippets is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register MCP-NOSTR — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More MCP-NOSTR tools

Write publish Publish a tweet to Nostr Write publish-new-code-snippet Publish a new code snippet to Nostr Read fetch_snippet_by_id Fetch and display a snippet by its ID Read find_agents Find Roo agents with optional filtering by query Read find_instructions Find instructions with optional filtering by query Read get_agent Get a Roo agent by event ID and save it to .roomodes file Read get_instructions Get an instruction by event ID Read list_snippets List code snippets metadata (without code content) with filtering by language and tags. Us

All 9 MCP-NOSTR tools →

Read tools on other servers

M-Team MCP Server get_torrent_detail YouTube MCP Server search_channel Android Forensics ADB MCP Server parse_browser_history 0xarchive web3_challenge

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about find_snippets

What does the find_snippets tool do? +

Find code snippets with optional filtering by author, language, and tags. It is categorised as a Read tool in the MCP-NOSTR MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on find_snippets? +

Register the MCP-NOSTR MCP server in PolicyLayer and add a rule for find_snippets: 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 MCP-NOSTR. Nothing to install.

What risk level is find_snippets? +

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

Can I rate-limit find_snippets? +

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

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

find_snippets is provided by the MCP-NOSTR MCP server (pablof7z/tenex-tools). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every MCP-NOSTR tool call.

Start from MCP-NOSTR, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →