market_listings

Skills currently for sale in the market with prices in credits.

SERVER123skills SOURCE123skills-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade C, identity unverified Pull the record →

This record as markdown: /tools/123skills-mcp/market-listings.md

WHAT IT DOES

What market_listings does on 123skills

AI agents use market_listings to create or update resources in 123skills, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your 123skills environment.

RISK

Why market_listings is rated Medium

An AI agent can call market_listings faster than any human can review: one bad instruction and it creates or modifies resources in 123skills by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs market_listings safely

PolicyLayer is an MCP gateway: it sits between your AI agents and 123skills, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For market_listings, this is the rule to start with:

market_listings Rate-limited

market_listings 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": {
    "market_listings": {
      "limits": [
        {
          "counter": "market_listings_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 123skills, apply this rule, and every market_listings call is checked against it from then on.

FAQ

Questions about market_listings

What does the market_listings tool do? +

Skills currently for sale in the market with prices in credits. It is categorised as a Write tool in the 123skills MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on market_listings? +

Register the 123skills MCP server in PolicyLayer and add a rule for market_listings: 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 123skills. Nothing to install.

What risk level is market_listings? +

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

Can I rate-limit market_listings? +

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

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

market_listings is provided by the 123skills MCP server (123skills-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on 123skills, and thousands of servers like it.

This server

All 12 123skills tools →

Across the catalogue

The MCP Attack Database →

Guides

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