create_listing

Accepts URL/endpoint input (callback_url); High parameter count (16 properties); Single-target operation

Part of the HumanPages Ai MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

human-pages-ai/humanpages Write Risk 2/5

// WHEN AI AGENTS USE THIS TOOL

AI agents use create_listing to create or modify resources in HumanPages Ai. 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.

// WHY ENFORCE A POLICY ON CREATE_LISTING

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

// RECOMMENDED POLICY

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

human-pages-ai-humanpages.yaml

tools:
  create_listing:
    rules:
      - action: allow
        rate_limit:
          max: 30
          window: 60

See the full HumanPages Ai policy for all 31 tools.

// DETAILS

Tool Name create_listing

Category Write

MCP Server HumanPages Ai MCP Server

Risk Level Medium

// MORE HUMANPAGES AI TOOLS

Destructive cancel_listing Destructive pause_stream Destructive stop_stream Execute start_stream Write create_job_offer Write mark_job_paid Write register_agent Write resume_stream

View all 31 tools →

// WHAT CAN GO WRONG

Agents calling write-class tools like create_listing have been implicated in these attack patterns. Read the full case and prevention policy for each:

Browse the full MCP Attack Database →

// OTHER WRITE TOOLS ACROSS MCP SERVERS

Other tools in the Write risk category across the catalogue. The same policy patterns (rate-limit, validate) apply to each.

AbraFlexi contact_create AbraFlexi contact_update AbraFlexi evidence_create AbraFlexi evidence_update AbraFlexi invoice_issued_update AbraFlexi invoice_received_create

// RELATED READING

// FAQ

What does the create_listing tool do? +

Post a job listing on the Human Pages job board for humans to discover and apply to. Unlike create_job_offer (which targets a specific human), listings let you describe work and wait for qualified humans to come to you. Requires an ACTIVE agent or x402 payment ($0.50 USDC). RATE LIMITS: BASIC = 1 listing/week, PRO = 5 listings/day. x402 bypasses limits.. It is categorised as a Write tool in the HumanPages Ai MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_listing? +

Add a rule in your Intercept YAML policy under the tools section for create_listing. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the HumanPages Ai MCP server.

What risk level is create_listing? +

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

Can I rate-limit create_listing? +

Yes. Add a rate_limit block to the create_listing rule in your Intercept 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 create_listing completely? +

Set action: deny in the Intercept policy for create_listing. 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 create_listing? +

create_listing is provided by the HumanPages Ai MCP server (human-pages-ai/humanpages). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

create_listing

Enforce policies on HumanPages Ai